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VOLUME 16, NO. 12DECEMBER 1984

q~m

Lfl

on THE SHOCK

AND VIBRATIONDIGEST

A PUBLICATION OFTHE SHOCK AND VIBRATIONIEFORMA1ION CENTERI l'NAVAL RESEARCH LABORATORY 0WASHINGTON, D.C.

DTICELECTr "FEB 1 5 1995

OFFICE OFTHE UNDERSECRETARYOF DEFENSE

FOR RESEARCH IENGINEERING

Approved for public rekims; distribution unlimited.

85 01 29 109

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THE'SHOCK ind VIBIATION DIGEST

Volume 16. No. 12December 1964

STAFF

SHOCK AND VIBRATION INFORMATION CENTER

EDITORIAL ADVISOR: Dr. J. Gordon Showalter 0

VIBRATION INSTITUTE

EDITOR: Judith Nagle-Eshloman

TECHNICAL EDITOR: Ronald L Eshleman

RESEARCH EDITOR: Milda Z. Tamulionis

COPY EDITOR: Loretta G. Twohig

PRODUCTION: Deborah K. BlaheGwen M. Wasllak

A publication of BOARD OF R.L Sort W.D. PillkyEDITORS J.D.C. Crisp H.C. Pusey

THE SHOCK AND VIBRATION D.J. Johns E. Svin

INFORMATION CENTER S.N. Leis R.A. SkopK.E. McKee R.H. Volin

Code 5804, Naval Research Laboratory C.T. Morrow H.E. von Glarke

Washington. D.C. 20375(202) 767-2220

Dr. J. Gordan ShowalterActing Director The Shock and Vibration Digest is a monthly publication of the Shock and

Vibration Information Center. The goal of the Digest is to provide efficient 0Rudolph H. Volin transfer of sound, shock, and vibration technology among researchers and

practicing engineers Subjective and objective analyses of the literature ae

Jessica P. Hileman provided along with news and editorial material. News items and articles tobe considered for publication should be submitted to:

Elizabeth A. McLaughlin Dr. R.L Eshleman

Mary K. Gobbett Vibration Institute SSuite 206, 101 West 55th StreetClarendon Hills, Illinois 60514

(312) 654-2254

Copies of articles abstracted are not available from the Shock and VibrationInformation Center (except for those generated by SVIC). Inquiries should bedirected to library resources, authors, or the original publishers.

This periodical is for sale on subscription at an annual rate of $140.00. Forforeign subscribers, ther Is an additional 25 percent charge for oversees deliv-ery on both regular subscriptions and beck issues. Subscriptions are acceptedfor the calendar year, beginning with the January issue. Back Issues are avail-able - Volumes 11 through 15 - for $20.00. Orders may be forwarded at anytime to SVIC, Code 5804, Naval Research Laboratory, Washington. D.C.20375 Issuance of this periodical is approved in accordance with the Depart-ment of the Navy Publications and Printing Regulations, NAVEXOS P-35,

%0

SVIC NOTES*" o .- . .

S:-.' . :

Many interesting meetings relating to shock and vibration technology were held ... .- , "

during 1984, and the two meetings that seemed the most interesting to me were the

Second International Modal Analysis Conference and the Vibration Damping Work-shop. Both of these meetings interested me because they revealed possible newdirections for controlling noise and vibration; but more to the point, they representgrowing branches of interest in the shock and vibration technology in the sense ofgreater involvement on the part of the shock and vibration technical community.

Fortunately, I was able to attend the Modal Analysis and Test Conference, andthis meeting was reviewed in the April, 1984, issue of the Shock and VibrationDigest. Judging by the papers that were presented in that conference, modal analy-

sis and testing is still a popular topic, and fcr many reasons. Modal analysis andtesting is a dynamic field since new techniques are constantly being developed.New and unusual modal testing requirements often arise, and these often lead tosome interesting questions. For example, the question of how to conduct a modaltest at frequencies approaching 100 kHz arose in the panel session at the Modal.Analysis Conference. The subject of modal testing and analysis appeals to a widelydiverse group of users who routinely use it to solve noise and vibration problems;the diversity in the users seems to be increasing. And finally, possible new direc- -- -

tions in modal testing and analysis cannot be ignored; detecting damage in struc- -

tures from the changes in their modal properties is a good example.

Judging from the program of the Vibration Damping Workshop, this conference -,,

provided a broad snapshot of the damping technology, from characterizing theproperties of damping materials to integrating damping treatments into the productdesign at an early stage. This latter topic represents a new direction in the use ofthe damping technology for controlling noise and vibration, and I believe the 1,6literature published on damping during 1984, and Perhaps the past few years, hasstressed this new direction in controlling noise and vibration. An effect of thisrecently published literature on damping will be to make a broader segment of theshock and vibration technical community aware of advances in the damping tech-nology. But more important, it will provide them with the tools for preventingnoise or vibration problems in future systems.

0

Accession For R.H.V. •

IqTPI GRA&IDTflC TAB EUnannounced f]I ustificatio J t.

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EDITORS RATTLE SPACE

CRITERIA AND STANDARDS

Any person performing a test on new or old equipment recognizes the need for -

criteria, guidelines, and standards. A number, waveform, or spectrum alone means .little when assessing the quality of equipment. Standards provide the mechanismfor the use of techniques and methods in acquiring and processing data in a com-mon manner. They establish the process that permits data taken by differentinvestigators to be compared. It is an essential step in forming criteria and levels sodesperately needed in the vibration field. I feel that the development of acceptable .levels of vibration for equipment is one of immediate challenges of the vibration -Sfield.

Even though millions of vibration measurements are being made every year, accept-able levels of vibration are available for only general classes of equipment andspecial types of excitation. In the case of rotating machinery, vibration levels areavailable for general equipment for once-per-revolution frequency vibrations. These .6numbers provide guidelines for engineers but are not useful in assessing the severityof critical vibration problems. The data needed to develop detailed vibration " -

criteria are being gathered. Unfortunately they are used only for the immediate .

task at hand.

The major reason data are not retained in a useful form is cost. Up to this time itwas too costly to record and transmit data to a data bank. The advent of themicroprocessor based devices has changed this situation. If data are taken accordingto standard guidelines it appears that they could be transmitted to a data bank withlittle extra cost to the plant. These data could be merged with those taken in otherplants to provide the large sample needed to develop acceptable vibration levels forspecific equipment. All engineers in the present and future would benefit from .such a program -- similar to that sponsored by the U.S. Navy to develop balancinglevels.

- While the aforementioned type program has yet to be established on an ongoing

basis, there are many organizations including American National Standards Instituteinvolved in the development of standards. Many trade associations and societies Ssuch as the American Petroleum Institute and the Society of Automotive Engineersare heavily involved in this work. I suggest those interested in the future of stan-dards and criteria contact one of the organizations and spend some effort on thisimportant work. If you need direction in where to focus your efforts, call me at theVibration Institute.

R. L. E.

2

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APPLICATIONS OF THE CONFORMAL MAPPINGMETHOD TO THE SOLUTION OF MECHANICAL

VIBRATIONS PROBLEMS

P.A.A. Laura"

Abstract Traditional applications of the method of and to the plane elastic problem when equationconformal mapping are governed by the Laplace (3) is to be solved.equation. However, in recent years the equation hasalso been used to solve wave propagation problems V4 U 0 (3)and those involving membrane and plate vibrations.

*In many instances it has been possible to obtain Solutions to equations (2) and (3) are considerably- -elegant approximate analytical solutions and algo- more difficult than is solving equation (1) because

rithmic procedures,- they have been implemented on equations (2) and (3) do not remain invariant underdesk computers and programmable pocket calcu- transformation.lators.

It is of historic interest that stress concentrationfactors in civil, mechanical, naval, and aeronautical

Most graduate engineers have learned that conformal structural systems were determined in many instancesmappng ake exct naltica soutins ossble in the 1940s and 1950s using this approach. Early inmappng ake exct naltica soutins ossble the 1960s the first mathematical models of solid

for two-dimensional boundary value problems gov- propellant rocket grains were analyzed; the con-uformal mapping method was used to transform the

doubly connected cross section (circular region with0 (1) a star-shaped perforation) into a circular annulus.

in some cases no solution could have been obtained It is the object of this paper to present a brief survey0 otherwise because of the complexity of the given of applications of the conformal mapping method to

*domain. vibration problems involving rods, plates, and mem-branes. Conformal mapping has also been used

Applcaton f th coforal appig tchnque recently to study the vibration characteristics of

is straightforward for problems described by the helicopter airframes. It is also of interest that con-

Laplace equation provided the analytic function formal mapping [5, 61 can be used to solve many

that performs the desired mapping is known. Deter- steady- and non-steady-state heat conduction prob-

*mination of the mapping function is usually a very lems in nuclear reactor technology.

*difficult task El, 2] , But the partial differentialequation is invariant under transformationSLUON FTH IEMILT EQAON.-SOLUTIION FORMAL OF THE HELMHL E M

In graduate courses on the myathematical theory of COFRA APN

-elasticity [3, 4 conformal mapping is usually applied Small ampitude vibrations of an ideal membrane

Atrthe Trol tiona ofppree.trions of pmt ic etods n otepaeeatc rbe hneuto .-

tothfo lu ino are qovrned by the classical, two-dimensional waveoverned by Poisson's equation equati

12 a~v (4)V 2loen 2Go (l w a onl 0e V()= 2 at,

nred and tho ein h Sientiet, mhrn e of Applied Achens, Puerto grano Navl Bae. 8 111 Argentina 7- .

3

:;. .ators. .. ".•.

It isof hstori intrest hat tres conenraio.. -. - .."

V'

2 2

subject to the boundary condition V -+ = 0 (9a)

v[L(x, y) = 0. t] = 0 (5)

V (r,)r10 (b)L(x, y) = 0 is the functional relation that defines the V )lr= I = 0 (9boundary of the domain,

In the case of normal modes or (r,) r 0 (9c)-

v(x, y, t = V(x, y) e !Wt (6) 0Equation (9a) is more complicated than (7a), but the

Substitution of this relationship in equations (4) transformed differential system has an inherentand (5) results in a time independent differential advantage: the geometry of the domain is such thatsystem, the boundary condition can be identically satisfied.

2 Many approximate analytical procedures are nowV V 0 (7a) available; e.g., Galerkin, Ritz, [7]. ;

CConsider, for instance, the case of a membrane withrounded corners [8] (see Figure 2) with

Equation (7a) is the well known Helmholtz equation;it also governs other phenomena of fundamental z = f(t) = aL(t+et'), L = 25/24, e =-1/25 (10)

importance such as wave propagation in hollow-piped Make .0

electromagnetic and acoustical waveguides. Theboundary condition in equation (7b) governs the V(r, 0) b (1-r2 ) + b2 (1-r 4 ) (11)propagation of TM waves and acoustical waves insoft walls.

* For TE waves and in the case of acoustically hardwaveguides equation (7b) is replaced by the Neuman-type boundary condition . --

[L(x, y) = 0] = 0 (7c) a - plaM _"-"'.]

where n is the outer normal to the domain.

If the domain is natural to one of the commoncoordinate systems for which (7a) can be solvedby the classical method of separation of variables, -*1solutions are available in standard textbooks. For C ,more complicated domains approximate techniquesmust be used. as f(" .

0 -

Domain 0 D Domain CHowever, when the analytic function that transformsthe given domain in the z-plane onto a simpler onein the t-plane, say a unit circle, is known (see Fig- £1 YSicSl Plane bi fransformed- ~Plane ...ure 1). Membrane of complicated Ptan.

Boundary Shape

z x + iyf() 8Figure 1. Conformal Mapping of a Given,

Equation (7) can then be transformed to obtain Complicated Domain

-7

'...- .-:,......

. ." . .* . . .o.- .

L ..- O.-.:

Use the Galerkin method to obtain for the funda- an arbitrary shell of revolution surrounded by anmental frequency coefficient acoustic medium. The region external to the gener-

ating curve of the shell was mapped conformally

ao 1 2.308 onto the region external to the unit circle.c

This value is in remarkably good agreement withanother determined value [8]. VIBRATIONS OF HELICOPTER AIRFRAMES

Other studies dealing with vibrations of membranes Bartlett [37] recently developed an interesting

F.. are available in the literature [9). The case of a corn- method to evaluate the effect of structural changesposite membrane has been dealt with [10], as have on the vibration characteristics of helicopter air- i

electromagnetic waveguides [11-18] and acoustical frames. He assumed that the mass and stiffnesswaveguides [19-23]. The first analytical studies on matrices of the damped linear structure are real andsimple mathematical models of vibrating solid pro- symmetrical and that the damping matrix is sym-pellant rocket motors were also based on the con- metrical and positive definite. He also assumed that

formal mapping approach [24-26]. the changes made to the structure do not affect *applied vibrational loads. He provided expressionsfor the vibration response of the airframe at a point

VIBRATIONS OF PLATES in terms of mobilities. The author proved that theresponses map onto circles in the complex plane

In many cases printed circuit boards possess non- and that the vector from the origin of the complexrectangular and non-circular shapes (see Figure 3a). plane to a point on the circumference defines the SRegular polygonal shapes with concentric circular magnitude and phase of the response for a particularperforations (Figure 3b) are of interest in nuclear structural mobility.reactor technology. Several studies have dealt with

vibrating plates of complicated boundary shape[27-301. Some work [31-34] has taken into accountin-plane forces and the presence of concentratedmasses.

SOUND RADIATION STUDIES -

The conformal mapping method has been used in -

the study of sound radiation phenomena. Particularlyvaluable is a study due to Berger [36], who obtaineda numerical solution for the transient vibration of ai Prind Circuit fiard f wgu Sa Car .

a Concetrated ".:.

b) Nuclear Ieactor Elements of Regular P i$o ShapeWith a Concentric Circular Perforati" " -

Figure 2. Square Membrane with Rounded Corners Figure 3. Modern Applications of Conformal Mapping

%5_____ _____ _____ _____ ____ _____ __-:,--.-.:--..- .-

-o- -. -° % .

CONCLUSIONS 9. Laura, P.A.A., "On the Determination of the

Natural Frequency of a Star Shaped Membrane,"

Modern technology requires solutions for a never- J. Royal Aeronaut. Soc., 67, pp 274-275 (1964).

ending number of problems in which the domain has

a complicated geometry. The conformal mapping 10. Laura, P.A.A., Sanchez Sarmiento, G., Verniere

method provides an accurate and rather simple way de Irassar, P., Hill, D., and Mazumdar, J., "Fun-

to solve a large number of problems in many fields. damental Frequency of Composite Circular -.

Furthermore, in many instances it provides for an Membranes with Boundary Disturbances," Fibre . -.

independent check for large computer-oriented solu- Sci. Tech. (1984). ,-.-

tions. Many of the results contained in the scientific 0-

literature quoted in this paper have been obtained 11 Meinke, H.H., "A Survey on the Use of Con-formal Mapping for Solving Wave-Field Prob-using a microcomputer or a pocket programmable

calculator. lems," Symp. Electromagnetic Theroy Antennas,

Copenhagen, June 25-30, Pergamon Press, pp

1113-1124 (1962).

REFERENCES 12. Meinke, H.H., Lange, K.P., and Ruger, J.F.,

"TE and TM Waves in Waveguides of Very1. Kantorovitch, L.V. and Krylov, V.I., "Aooroxi General Cross Section," IEEE, Proc., 51 (11),

mate Methods of Higher Analysis, Third Edition,

Intercience Publishers, Inc., New York (1958). pp 1436-1443 (1963).

13. Tischer, F.J., "Conformal Mapping in Waveguide2. Gaier, D., Konstruktive Methoden de Konformen Considerations," IEEE, Proc., 51 (7), pp 501-503

Abbildung, Berlin-Gottingen, Heidelberg (1964). (1963).

3. Wang, C.T., Applied Elasticity, McGraw Hill 14. Tischer, F.J., "The Groove Guide. A Low-LossBook Co., Inc. (1953). Waveguide for Millimeter Waves," IEEE Trans.

Microwave Theory Tech., MTT-1 1, pp 291-2964. Mushkhelishvili, N.J., Some Basic Problems of (1963).

the Mathematical Theory of Elasticity, P. Noord-hoff Ltd., Groningen, Holland (1953). 15. Chi, M. and Laura, P.A.A., "Approximate Meth-

od of Determining the Cutoff Frequencies of '-

5. Laura, P.A.A. and Ercoli, R., "A Solution of the Waveguides of Arbitrary Cross Section," IEEE " "

Unsteady Diffusion Equation in an Arbitrary Trans. Microwave Theory Tech., MTT-12 (2),

Doubly Connected Region," Nucl. Engrg. Des., pp 162-164 (1964). -

23, pp 1-9 (1972).16. Wohlleben, R., "The TEM Characteristic In-

6. Sanchez Sarmiento, G. and Laura, P.A.A., pedance of Some Complicated Cross Sections," - -

"Heat Transfer Analysis in Internally-Cooled Proc. Fourth Colloquium Microwave Commun.Fuel Elements by Means of a Conformal Mapping Budapest, 111(1970).

Approach," Nucl. Engrg. Des., 67, pp 101-108 _

(1981). 17. Miyazaki, Y., "Optimal Modes in Dielectric,Thin, Film Fiber with Convex Surface by Con-

7. Mazurnidar, J., "Transverse Vibrations of Mem- formal Mapping Technique," IECE Trans.,branes of Arbitrary Shape by the Method of Japan, E.59 (10), pp 1-6 (1976).

Constant Deflection Conturs," J. Sound Vib.,

27, pp 47-57 (1973). 18. Laura, P.A.A., Sanchez Sarmiento, G., andNagaya, K., "Numerical Experiments on the

8. Irie, T., Yamada, G., and Sonoda, M., "Natural Determination of Cutoff Frequencies of Wave-

Frequencies of Square Membrane and Square guides of Arbitrary Cross Section," IEEE Trans.

Plate with Rounded Corners," J. Sound Vib., Microwave Theory Tech., MTT-28, pp 568-572

86 (3), pp 442-448 (1983). (1980).

6

.. . .. . ....... ,. .-.....-.-......-......-........ .,......... .. . ..' '.."--- ,: i ". .'"''.,...-'' '".."- ..,- -,-.'.. .'.'-.. .-.-.. .- - :'.'.- - -.-.-:.:.1 . .:•-- '- '. ' :- -,:. : -'' -' -'''''

• °o• ~~.. . . . . .... . . .-'P

' ' ".bo*' ° ' " ' ' o , . ', ,J ,- 1 %. . o, ° . q °"", g% ,*., °, , , % % % ° •,

19. Kashin, V.A. and Merkulov, V.V., "Determina- Determination of the Fundamental Frequencytion of the Eigenvalues for Waveguide with Corn- of Vibrating Plates," J.Acoust. Soc. Amer.,plex Cross Section," Soviet Phys., Acoust.. 11, 42, pp 806-809 (1967).

pp 285-287 (1966).029. Laura, P.A.A. and Grosson, J., "Fundamental

20. Laura, P.A.A., "Calculations of Eigenvalues for Frequency of Vibration of Rhombic Plates,"..Uniform Fluid Waveguide with Complicated J. Acoust. Soc. Amer., 44, pp 823-824 (1968).Cross Section," J. Acoust. Soc. Amer., 42 pp

21-2 (197).30. Yu, J.C.M., "Application of Conformal Mapping

and Variational Method to the Study of Natural21. Roberts, S.B., "The Eigenvalue Problem for Feuniso oyoa lts"J cut

*Two Dimensional Regions with Irregular Bound- Soc. Amer., 49 ,'pp 781 785 (197 1)aries," J. AppI. Mech., Trans. ASME, 34, pp618-622 (1967). 31. Laura, P.A.A., Gutierrez, R.H., and Steinberg,

D.S., "Vibrations of Simply Supported Plates of22. Hine, M.J., "Eigenvalues for a Uniform Fluid Arbitrary Shape Carrying Concentrated MassesWaveguide with an Eccentirc-Annulus Cross and Subjected to a Hydrostatic State of I n-PlaneSection," J. Sound Vib., 15 (3), pp 295-305 Srse. .SudVb,5 5,p 95(1971). (1977)

23. Laura, P.A.A., Romanelli, E., and Maurizi, M.J.,"On the Analysis of Waveguides of Doubly-Con- 32. Gutierrez, R.H., Laura, P.A.A., and Grossi, R.O.,

nteutedl Cross Section by the Method of Con- "Transverse Vibrations of Plates with Stepped

formal Mapping," J. Sound Vib., 20 (1). pp Thickness over a Concentric Circular Region,"27-3 (172) J. Sound Vib., 69 12), pp 285-295 (1980).

24. Baltrukonis, J.H., Chi, M., and Laura, P.A.A., 33. Pombo, J. L., Laura, P.A.A., Gutierrez, R. H., and

P"Axial Shear Vibrations of Star Shaped Bars- Steinberg, 0.S., "Analytical and ExperimentalKohn-Kato Bounds," Eighth Midwest. Mech. Investigation of the Free Vibrations of ClampedConf., Case Inst. Tech., Cleveland, OH, evelo - Plates of Regular Polygonal Shape Carrying -..-

ments in Mechanics pp 449-467, Pergamon Concentrated Masses," J. Sound Vibration, .

Press (1963). 5 (4), pp 521-532 (1977).

25. Baltrukonis, J.H., Chi, M., and Laura, P.A.A., 34. Laura, P.A.A. and Gutierrez, R.H., "Transverse

"Axial Shear Vibrations of Star Shaped Bars -- Vibrations of Thin, Elastic Plates with Concen-An Application of Conformal Transformation," trated Masses and Internal Elastic Supports,"Tech. Rept. No. 4 to NASA (The Catholic J. Sound Vib., 75(1), pp 135-143 (1981).University of America, Washington, DC) (1962).

35. Pond, H.L., "Sound Radiation from a General26. Laura, P.A.A. and Shahady, PA., "Longitudinal Class of Bodies of Revolution," Naval Under- 0

Vibrations of a Solid Propellant Rocket Motor," water Systems Center, New London, NUSCProc. Third Southeast. Conf. Theoret. App . Rept. No. NL-3031 11970).Mech., Pergamon Press, pp 623-633 (1966).

36. Berger, B.S., "Transient Motion of an Elastic27. Munakata, K. "On the Vibration and Elastic Shell of Revolution in an Acoustic Medium,"

Stability of a Rectangular Plate Clamped at Its J. App . Mech., Trans. ASME, 100 (1). pp 149- -

Four Edges," J. Math. Phys., 31, pp 69-74 152(1978).(1954).

37. Bartlett, F.D., Jr., "Flight Vibration Optimiza-28. Shahady, P.A., Pasarelli, R., and Laura, P.A.A., tion via Conformal Mapping," J. Amer. Heli-

"Application of Complex Variable Theory to the copter Soc., 28 (1) pp 49-55 (1983).

7

........................... ............... 69(2).pp.85-95.(980......' -..

"Axial Shear Vibrations of Star........................... ... "naytca. ad. xpeimnt.... ...

--__ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ .-..- t.-..................

"-- - -. . . . . . i.. .. °,' . .

survey and analysisLITERATURE REVIEW the Shock andLITERATURE REVIEW: Vibration literature

0

The monthly Literature Review, a subjective critique and summary of the litera-

ture, consists of two to four review articles each month, 3,000 to 4,000 words inlength. The purpose of this section is to present a "digest" of literature over ai . period of three years. Planned by the Technical Editor, this section provides the .

DIGEST reader with up-to-date insights into current technology in more than150 topic areas. Review articles include technical information from articles, reports, ,. ,

and unpublished proceedings. Each article also contains a minor tutorial of thetechnical area under discussion, a survey and evaluation of the new literature, andrecommendations. Review articles are written by experts in the shock and vibration

field. S

This issue of the DIGEST contains an article about machine tool vibrations.

Dr. V. Ramamurti and Mr. D. Ganapathi Rao of the Department of Applied Me-

chanics, Indian Institute of Technology, Madras, India have written a review of

work done on machine tool vibrations and noise since 1981. .0

h - ........ . . .. . . . . . . . . .. . .. . . .

-, MACHINE TOOL VIBRATIONS- A REVIEW

V. kanamuri- and D. Ganapathi Rao**

Abstract The material reported here is work done piece that affect self-induced oscillation have been0on machine tool vibrations and noise since 1987. determined [141. Vibrations of a forced self-excited

system with time lag have been examined, as has theinfluence of initial conditions on steady-state be-

CHATTER IN MACHINE TOOLS havior [151.

A major topic of interest is chatter in machine tools." The general concept of machine tool chatter has been GENERAL DYNAMIC ANALYSIS

discussed [1], as have methods adopted for reducingit [2]. It was concluded [21 that the continuous Dynamic analysis and optimal selection of parameters..

fluctuating cutting speed of machine tools partly of a lathe spindle under random cutting loads have

reverses the chatter causing function. A unified been undertaken [16]. Free vibration behavior of -

systems approach for chatter analysis has been lathe spindles has been studied [17]. A general . ]pesntedm[3]s Atheoretical approach for predictsis s n vibration study has been used to diagnose the health. ~ ~~~presented [3]. A theoretical approach for predicting ]. i i'"chatter has been verified experimentally by turning of a machine [18]. A minicomputer has been usedto determine the frequency response of machine tools

slender bar on a turret lathe [41. Miling machine [191. Effects of machine vibrations on the accuracychatter has been a subject of discussion [5], as has and quality of machine parts have been evaluated

chatter in lathes including general characteristics of [201.... chatter vibration [6] and the mechanism of exciting

energy supply [7]. Methods have been developed to study static anddynamic behaviors of machine tools [21]. A testThe conclusion after an experimental study of procedure for vibration analysis has been developed

carbide face milling cutters was that increased tool to check a machining setup [22]. Experiments havewear due to vibration is governed mainly by the been conducted on the nonlinearity of cutting forcesstiffness of certain elements in the cutting mechanism [231. Stability of machine tools under regenerative[8]. A distinction has been made between the vibra- cutting conditions has been studied [24]. Instrumen-tion of a cutting tool and its resulting cutting marks.-. ~ ~~~tation for testing the vibration stability of machine "': ].:l[9] ; the cutting marks are not a simple reproduction tools in shop conditions has been reported [25].. .- -of the vibration. Two basic experiments have shown Discussions on the dynamic stability of a vibratingl that certain machining operations result in a single hme r vial 2)change of cutting parameters that permanently

eliminates regenerative chatter vibration I101. Static stiffness of machine tool spindles has alsobeen a subject of discussion [27]. Dynamic stiffness

Self-excited oscillations of machine tools have been of machine tool feed systems has been presentedstudied [11-15]. A relation between fluctuations of in a theoretical analysis [28] ; an experimentalrotational speed of a workpiece and frequencies of evaluation of damping capacity has been done [29].self-excited oscillations has been reported [11]. An The use of preloaded bearings to maximize theadaptive control of the cutting process including dynamic stiffness has been discussed [30].self-excited oscillation has been the subject of a study[12]. Stick slip motion due to low driving speed has Modal analysis of machine tool structures based onbeen reported [13]. Material parameters of a work- experimental data has been reported [31, 321. A

oeoAplied Mechanics Indian Institute of Technology, Madras-600036, India**Research Scholar, Department of Applied Mechanics, Indian Institute of Technology, Madras-600036, Indio-

9

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-: °.............%............ .............. ,..........

., .. ° . -. ". % ° ° -. ', °• - -. . • • • ° " . . .. _• - .. °. .' "°. - ° .. o . . . ° ' °° - . .- - .- • ° . - -. - . - - --- . . .. . - *.

V0

new method for altering natural frequencies to NOISE IN MACHINE TOOLSmaximize intervals between adjacent frequencieshas been developed [33], as has a new mathematical The noise and vibration produced by workshopmodel of the dynamic characteristics of machine machinery has been surveyed [52] ,and recommenda- 0structures [34]. The dynamics of metal cutting have tions for noise abatement of machines have beenbeen discussed [35, 36] as have the vibration and given [531. The design of low noise machine toolsstability of band saws [37, 38] and the dynamic [54], and noise abatement in the development ofdesign of machine tool foundations [39]. manufacturing concepts [55] have been discussed.

Structure-borne noise in machine tools has beenClassical techniques and the dynamic data system presented in a linear model [561. A novel damper 0(DDS) approach have been compared for accuracy for reducing tool noise has been proposed [57].in identifying the structural systems of machine tools It has been shown that the noise level of a machine[40]. The DDS approach has been applied to the can be predicted at the design stage [58, 59]. Com-

- analysis of dynamic characteristics of a machine tool puter-aided design in predicting a sound field hassystem in the time domain. Impulse responses have been described [601. Current methods for moni-been applied to machine tool structures to identify toring noise generation have been surveyed [61], 0vibration characteristics [42]. A mathematical and results of the design of a jumbo drill have beenmodel of the structural dynamics of a machine tool summarized [62]. Test data have been used to dis-with nonproportional viscous damping effect has cuss the effect of increased noise on cutting forcebeen developed using the method of state space and temperature [63]. It has been shown that thevector analysis [43]. New parameters for evaluating noise level distribution of various machine concen-static rigidity and dynamic characteristics for opti- trations cannot be described simply by summing up •mizing the structural design of machine tools under sound levels from individual plants and machine toolsdifferent type of cutting arrangements and opera- [64].tions have been identified [44].

A comparative study of dynamic characteristics REFERENCESusing hydraulic and epoxy resin concretes for ma- -

chine tool structures showed that epoxy resin con- 1. Das, M.K., "Machine Tool Chatter," CME,crete had better characteristics than hydraulic con- Chart. Mech. Engrg., V28 (9), pp 22-27 (Septcrete [45]. A method for determining the rigidity 1981).coefficient and the damping of flexible elements ofmachine tool drives has been proposed [46]. ; -""'2. Tetsutaro, H., "Method for Reducing Machining

Chatter," Tool Prod., 46 (7), pp 85-87 (OctAn expression for determining the amplitude-phase 1980).

frequency relationship of an elastic system of a ma-chine tool during cutting was based on information 3. Nigm, MM., "Method for the Analysis of Ma-about relative tool and workpiece vibrations [47] 3. chine Tool " tl. fo h. oolys s .

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to a single variable [49]. An algorithm of a program Div. Publ. 2, Comput. Applic. Mfg. Syst., Plan.for calculating the vibration stability of boring units Cont. Rab. Pres. Winter Ann. Mtg. ASME, Chi-

has been proposed (50]; suggestions for utilizing the cago, IL, pp 37-52 (Nov 16-21, 1980).results to improve the quality of the equipmentbeing designed were also indicated. A mathematical 5. Tlusty, J. and Ismail, F., "Special Aspects ofdescription and analysis of the rotational accuracy Chatter in Milling," J. Vib., Acoust., Stress Rel.of a machine tool spindle have been presented [51]. Des., Trans. ASME, 105, pp 24-32 (Jan 1983).

."0 " -

....-... ..... ... ,,,,,,..,....... ..... , .:, ,"•- .. " 1../. - -,71.,, .' °

9

6. Marui, E., Ema, S., and Kato, S., "Chatter Vi- eters of a Finite Element Modelled Lathe Spindlebration of Lathe Tools," J. Engrg. Indus., Trans. under Random Cutting Forces," J. Vib., Acoust.,ASME, 105 (2), pp 100-106 (May 1983). Stress, Rel. Des., Trans. ASME, 105 (4), pp

467-475 (Oct 1983). 07. Marui, E., Ema, S., and Kato, S., "Chatter

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Trans. ASME, 105 (2), pp 107-113 (May 1983). namic Behaviour of Lathe Spindles with ElasticSupports including Damping by Finite Element

8. Mehta, M.K., Pandey, P.C., and Chakravarti, Analysis," Shock Vib. Bull., U.S. Naval Res.G., "Investigation of Tool Wear and the Vibra- Lab., Proc. 51, pp 83-96 (Oct 21-23, 1980). -

tion Spectrum in Milling," Wear, 91 (2), pp219-234 (Nov 1, 1983). 18. Harvey, R.E., "Vibration Analysis, A Powerful

Instrument for Cutting Down Time," Iron AGe,9. Depci, D., Yanchi, Y., Xieqing, H., and Gu 225 (23), pp 42-44 (Aug 11, 1982)..-

Chongxian, "New Concept of the Formationof Cutting Marks during Metal Cutting Vibra- 19. Yuce, M., Sadak, M.M., and Tobias, S.A., "Pulsetion," Chi Hsich Kung Ch'eng Hsueh Pan, 17 (1), Excitation Technique for Determining Frequen-pp 37-49 (1981). cy Response of Machine Tools Using an On-line

Mini-computer and a Non-contacting Electro-10. Schulz, H. and Russak, W., "Beseitigen Von magnetic Exciter," Inst. Mach. Tool Des. Res.,

Regenerativen Ratterschwingungen Beim Drehen 23 (1), pp 39-51 (1983).und Ausbohren Mit Bohrstangen," WerkstattBetr, 116 (1), pp 21-24 (Jan 1983). 20. Pavlov, A.G., "Effectiveness of Reducing Ma- 0

chine Tool Vibrations," Sov. Engrg. Res., 1 (7),11. Ohno, S. and Arai, T., "On the Relation between pp 15-17 (July 1981).

the Fluctuations of the Rotational Speed of theWork Piece and the Fluctuation of the Fre- 21. Proessler, E.K., "Experimentall-Rechnerischequency of the Self-excited Machine Tool Vibra- Analyse von Maschlnenschwingungen," Fortschrtion," Bull. JSME, 22 (172) (Oct 1979). Ber VDI Z, Pt. 11 (36), p 135 (1981).

12. Koval, M.I., "Adaptive Control System with 22. Hoshi, T., "Vibration Analysis Test ProcedureLimitation of Machine Self-excited Vibration," Developed for Checking Machining Set Up,""-Mach. Tool, 51 (2), pp 17-22 (1980). Ann CIRP, 29 (1), pp 257-261 (1980).

13. Soavi, F., "Theoretical Analysis of Self-excited 23. Kudinov, V.A., "Experimental Investigation of .Vibrations in a Machine Tool, Isolated Mounting the Nonlinearity of the Dynamic Characteristics - .Base System," Meccanica, 15 (1), pp 54-69 (Mar of Cutting Tool Process," Machine Tool, 49 (11),1980). pp 14-18 (Nov 1978).

14. El'Yasberg, M.E. and Savinov, I.A., "Deter- 24. Stepan, G., "Stability of Machine Tool Vibra-mining Work Piece Material Parameters Which tions under Regenerative Cutting Conditions," - -Affect Self-induced Vibration," Machine Tool, Perid. Polytech. Mech. Engrg. 24 (3), pp 169-50 (12), pp 30-34 (1979). 174 (1980).

15. Yoshitake, Y., Inoue, J., and Sueoka, A., "Vi- 25. Skvortsov, V.I, "Instrumentation for Testing -

brations of a Forced Self-excited System with the Vibration Stability of Machine Tools in ShopTime Lag," Bull. JSME, 26 (221), p 1943 (Nov Conditions," V.I. Mach. Tool, 51 (8), pp 16-181983). (1980).

16. Sharan, A.M., Sankar, S., and Sankar, T.S., "Dy- 26. Inoue, J. and Miyaora. S., "Dynamic Stabilitynamic Analysis and Optimal Selection of Param- of a Vibrating Hammer," J. Vib., Acoust..

: :: % .. .... ..... .... ..... ,- ...... ..... .,,,.-.-.., ..... . ..... ' " " - -" " " """ " " """" - " " . . ... ': "' "'.~. : ' " " _';_': __ "'_ "''- ': , _., . _ , , -_ " '-' - ' -"'. - "" "

.- ~- -.--

Stress, Rel. Des., Trans. ASME, 105 (3), pp 321- Indus., Trans. ASME, 105 (3), pp 187-196325 (July 1983). (Aug 1983).

27. Shuzi, Y., "Study of the Static Stiffness of Ma- 36. af Heurlin, M., "Study of Dynamic Effects in Schine Tool Spindles," Intl. J. Mach. Tool Des. Machining," Tiet Julk Helsingnin Tek Korke-Res., 21 (1), pp 23-40 (1981). akolulu, No. 65 (1980).

28. Shiozaki, S., "Dynamic Stiffness of Machine 37. Reynolds, D.D. and Wilson, F.L., "Mechanical :.'Tool Feed Driving System, 1: Theoretical Analy- Test Stand for the Measurement of the Vibrationsis on the Damping Capacity of Slideway," Levels of Chain Saws during Cutting Opera-Bull. JSME, 23 (180), pp 991-996 (June 1980). tions," J. Sound Vib., 88 (1), pp 65-84 (May 8,

1983).29. Mizukane, M., Purukawa, Y., and Shiozaki, S.,

"Dynamic Stiffness of Machine Tool Feed 38. Ulsoy, A.G. and Mote, C.D., Jr., "Vibration of "Driving System, 2: Experimental Evaluation of Wide Band Saw Blades," J. Engrg. Indus., Trans. .....the Damping Capacity of a Slideway," Bull. ASME, 104, pp 71-76 (Feb 1982). 6JSME, 23 (180), pp 997-1002 (June 1980).

39. McGoldrick, P.F. and Baghshi, B.S., "Technique30. Wardle, F.P., Lacey, S.J., and Poon, S.Y., "Dy- for the Dynamic Design of Machine Tool Foun-

namic and Static Characteristics of a Wide Speed dations," Proc. Joint Polytechnique Symp.Range Machine Tool Spindle," Precision Engrg., Mfg. Engrg. (June 11-13, 1979).5(4), pp 175-183 (Oct 1983). . -

40. Eman, K.F. and Wu, S.M., "Comparative Study31. Eman, K.F. and Kim, K.J., "Modal Analysis of of Classical Techniques and the Dynamic Data %

Machine Tool Structures Based on Experimental System (DDS) Approach for Machine Tool 'Data," J. Engrg. Indus., Trans. ASME, 105 (4), Structure Identification," Mfg. Engrg. Trans.pp 282-287 (Nov 1983). 1980, Proc. 8th North Amer. Mfg. Res. Conf.,

Univ. Missouri - Rolla, pp 401-404 (May 19-21, .32. Soneys, R., Van Honacker, P., and Van Deurzen, 1980).

U., "Practical Applications of Modal Analysis onMachine Tools," Nati. Conf. Publ. Inst. Engr. 41. Peng, Z., Tian, X., and Liu, Y., "Analysis of, .Austral., 80/5, Prog. Pap - Intl. Conf. Mfg. Engr. Dynamic Characteristics of Machine Tool viaMelbourne, Austral, pp 210-214 (Aug 25-27, Dynamic Data System (DDS) Methodology,"1980). Tianjin Daxue Xuebac, 3, pp 23-38 (1982). .

33. Yoshimura, M., "Optimum Design of Machine 42. Wang, X., Sato, H.Y., and Ohori, M., "MethodStructures with Respect to an Arbitrary Degree for the Identification of Vibration Characteris-of Natural Frequency and a Frequency Interval tics by Using Impulse Responses and Its Applica- .

between Adjacent Natural Frequencies," Bull. tion to Machine Tool Structure," Chi Hsieh KungJpn. Soc. Precis. Engrg., 14 (4), pp 236-242 Cheng Hsueh Pav, 19 (3), pp 32-42 (Sept 1983). •(Dec 1980).

43. Ze-min, Peng and Guan-fu Wang, "Mathematical -

34. Inamura, T. and Saba, T., "Stiffness and Damp- Model of Machine Tool Dynamics via State Spaceing Identification of the Elements of a Machine Vector Methodology," Tianjin Daxue Xuebao,Tool Structure," Ann CIRP, Mfg. Tech., 28 (1) 2, pp 13-22 (1982).(1979).

44. Yoshimura, M., "Analysis of Evaluative Param-35. Chang, H.C., Sadek, M.M., and Tobias, S.A., eters for Static and Vibrational Characteristics

"Relative Assessment of the Dynamic Behavior at the Fundamental Design Stage of Machineand Cutting Performance of a Bonded and a Tool Structures," Bull. Jpn. Soc. Precis. Engrg.,Cast-Iron Horizontal Milling Machine," J. Engrg. 16 (4), pp 237-242 (Dec 1982).

12

' - ' . .

---------------------------------------------------- ..---------------------------------------------------------.",.V%

77 7 7 -- 7-7-

45. Moriwaki, T., Ueno, S., and fwata, K., "Com- 55. Bley, H. and Haeusler, J., "Abbau Von Ge-

parative Assessment of Dynamic Characteristics raeuschbelastungen Bei Der Entwicklung Vonof Concretes for Machine Tool Structures,' Fertigungskenzeptin," Werkstatt Betr, 114 (11),Mem. Fac. Engrg., Kobe Univ., No. 29, pp 49-59 pp 807-809 (Nov 1981).

* (Sept 1982).56. Schwartz, J., "An Evaluation of a Linear Model .

46. Berczynski, Stefan, Mackowiek Henryk, and for Description of a Structure-borne Noise inZiemlewicz, Zbigniew, "Bodania Dynamiczne Machine Tools," Industrie Auzeiger, 11 (37), --

Napedou Obrabiarek," Przezl Mech., 40 (14), pp 29-30 (May 11, 1983).

pp 5-7 (July 11, 1981).57. DiBianca, A.J., Lacey, J.A., Kennedy, W.C., and

47. Kushnir, E.F., "Determination of the Amplitude- Scarton, H.A., "A Novel Damper for Reducing

phase Frequency Characteristic of Machine Tool Percussive Tool Noise," Quieting the NoiseElastic Systems during Cutting," Sov. Engry. Source, Noise Contr., pp 99-104 (Mar 21-23,Res., 3(3), pp 66-69 (Mar 1983). 1983).

48. Elyasberg, M.E., "Method for the Structural 58. Jeypalan, R.K. and Halliwell, N.A., "Machinery SImprovement of Machine Tool Vibration Sta- Noise Predictions at the Design Stage Usingbility during Cutting," Soy Engrg. Res., 3 (4), Acoustic Modelling," Appl. Acoust., 14 (5),pp 59-64 (Apr 1983). pp 361-376 (Sept/Oct 1981).

49. Miyashi, Y., "Estimation and Application of 59. Halliwell, N.A., "Machinery Noise Considerations -

'- Mean Square Frequency," Bull. Jpn. Soc. Precis. at the Design Stage," Phys. Tech., 12 (3), pp 97- t

Engrg., 16 (3), pp 155-160 (Sept 1982). 102 (May 1981).

"" 50. Sofranova, A.A. and Shitov, A.M., "Algorithm 60. Hodgson, D.A. and Sadek, M.M., "Technique for -

of a Program for Calculating the Vibration Sta- the Prediction of the Noise Field from an Arbi-

bility of Boring Units," Sov. Engrg. Res., 2 (6), trary Vibrating Machine," IMechE, Proc., 197,pp 79-81 (June 1982). Part C, pp 189-197 (Sept 1983). -.

51. Zhang, H., "Mathematical Description and 61. Avakian, V.A., "Finding Machine Tool Noise

Analysis of the Rotational Accuracy of a Ma- Sources by the Vibration Diagnostics Method,"chine Tool Spindle," Chi Hsieh Kung Cheng Mach. Tool, 50 (3), pp 11-14 (1979).Hsueu Pao, 18 (1), pp 65-73 (Dec 1982).

62. Dutta, P.K., Runsadler, P.W., Jr., and Bartholo- 52. Banerjee, J. and Lalwani, R.J., "Noise and Vi- mac, R.C., "Development of a Quiet Jump

brations Generated by Workshop Machines," Drill: Evaluation of Design Concepts," Noise - -

Noise Vib Cont Worldwide, 13 (3), pp 128-131 Cont., pp 169-176 (Mar 21-23, 1983). -

(Apr 1982).

63. Wang, R., "Several Problems of the Built-up53. Allen, R._ "Control of Noise," Prod. Finish Noise in Metal Cutting," Chi Hsieh Hung Cheng

(London), 34 (10) pp 45-46 (Oct 1951). Hsueh Pao, 17 (1), pp 89-100 (1981). -

54 Kloecker, Max, "Geraeuschmiriderung an Spa- 64. Bley, H., Guenther, K.G., Haeusler, J,, and Noe,nendyn Wekeugmaschinen Ursachenanalysen, S. L., "Machine Concentration and Noise Annoy-

Vorgehfuchrung Konstructiver Massnahmen," ance in the Workshop," Ann. CIRP, 29 (1), pp

Fortschr Ber VDIZ Reihe 11, No. 47 (1982). 269-273 (1980).

13

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.."' ...-% ..,,- °,,-*

BOOK REVIEWS

DISCRETE FOURIER TRANSFORMATION supplement to the application-oriented information

AND ITS APPLICATIONS TO POWER and program listings throughout the book.

SPECTRA ESTIMATIONDespite the fact that the FFT has been around for -

C. Geckinli and D. Yavuz about 20 years, not many textbooks have beenStudies in Electrical and Electronic Engineering 8, devoted to it. A notable exception is the book by

Elsevier Publishing Company, New York, NY E.O. Brigham, published by Prentice-Hall in 1974.1983, 340 pages, $78.75 It is indeed fortunate that within a period of another

decade an excellent book containing the applicationof the FFT to power spectra estimation has appeared.

This book is the culmination of a seven year effort It would be most desirable to decrease the samplingthat began with lecture notes used in preliminary time of these milestones in textbook writing to halfform at the Moore School of Electrical Engineering its current inierval.of the University of Pennsylvania, other universities,seminars, and training programs. The authors concen- L.Y. Bahartrate on the discrete Fourier transform (DFT), its Department of Mechanical Engineeringmost efficient computerized version of the fast and MechanicsFourier transform (FFT), and the application of these Drexel Universitymethods to power spectra estimation. Philadelphia, PA 19104

In the first chapter the authors present a concise yetcomprehensive introduction to the Fourier trans-formation. This chapter constitutes a review of INTER-NOISE '83 _relevant terminology and concepts that form the NOISE CONTROL: THE INTERNATIONALbasis for the remainder of the text. It is not intended SCENEto replace standard books on the subject but to setthe stage and provide a brief guided tour of the R. Lawrence, Editorsubject so that the presentation is self-contained. Noise Control Foundation, Poughkeepsie, NY

1983, 1242 pages, $72.00 .The second chapter introduces the DFT and developsthe FFT as a technique for calculating DFT coeffi-cients most efficiently. The third chapter comprises This two-volume set is the proceedings of the 1983half of the main body of the text and covers in International Conference on Noise Control Engineer- - -

considerable detail the subject of power spectra ing that took place in July, 1983, in Edinburgh,estimation through DFT techniques. The material Scotland. Sponsored by the International Instituteon data and spectral methods is new and instructive, of Noise Control Engineering, the Conference wasA great deal of this expostion appears for the first jointly organized by the Institute of Acoustics of thetime in a textbook. United Kingdom and the Fellowship of Engineering.

A significant feature of this book is Appendix B. It The Inter-Noise proceedings have always been charac-contains 14 complete examples with actual input data terized by a large number of short papers coveringand output for a wide range of signal types. These an extremely wide range of subject areas related toexamples provide actual numerical results that sound and vibration. This conference was no excep-illustrate the effects of changing sampling rates and tion and consisted of nearly 300 technical papers.input/output data intervals. This i3 an excellent International participation has also been a hallmark

eS

14

.. -... .. . ...-.,o'°.= °%1 -= .' -J -=.'°i. ............................................. . . -o- ., % •. , ...................... o.o .. o , ... ,

. o. -

of the Inter-Noise conferences and the international beyond that usually found in the Inter Noise Confer-theme was duly reflected by authors representing ence proceedings.28 countries.

A prime source of technical papers since the incep-One cannot easily generalize on the technical quality tion of the Inter-Noise Conferences has been theof these proceedings due to the number of contribu- propagation of sound in air and the effects of ground-.tions and the wide variety of subject areas included, surfaces, barriers, and turbulence. In this Conference, -. --

This reviewer has often felt that the Inter-Noise we again find a substantial number of contributions ' ,.

Series would benefit from a reduction in the number of both a theoretical and a practical nature.of papers and a corresponding increase in the detail Sof those papers retained. However, in many of the In summary, this well-organized publication offersmore technically sophisticated papers, references to a wealth of subject matter to the noise/vibrationpreviously published works partially compensate for specialist and the beginner as well. Indeed, it would

the lack of detail. be difficult to find an active worker in the field whocould not find something of interest in these pro-

A particularly valuable feature of the Inter-Noise ceedings.

Proceedings is the Distinguished Lecture Series,wherein a number of recognized authorities present J.H. Carey

overviews of their areas of specialization. These Entek Science Corporationoverviews are oriented toward the general acoustics/ 4480 Lake Forest Drivenoise control practitioner and often include historical Cincinnati, OH 45242background notes to illustrate significant develop- .ments that have led to the present state of the art.

Selected titles of this series are "Effects of Vibra-tions on Humans," "Acoustic Consultancy," and TIME SERIES AND SYSTEM ANALYSIS"The Acoustical Design of Concert Halls," and the WITH APPLICATIONS1983 Rayleigh Medal Lecture by Eugen Skudrzyk,

"Understanding the Dynamic Behavior of Complex S.M. Pandit and S.M. Wu , .

Vibrators." John Wiley & Sons, New York, NY1983, 586 pages

Among the wide variety of subject areas covered by

the conference papers can be identified groups ofpapers devoted to specific subjects in which strong Engineers now consider time series as the response -

research and development efforts have recently been of a system that can be modeled with increasingconcentrated. Active sound control is certainly an degrees of freedom when the data justify it. Theexample with 16 very interesting contributions. A method of least squares is used to improve the fit " -"--

number of these contributions are based on impres- until it is statistically significant. As stated by the

sive results produced by the Wolfson Centre for the authors, "The new modelling strategy can greatly "Electronic Cancellation of Noise and Vibration at reduce the tedious chore of searching for an appro- -

Essex University, U.K. priate model .. .This book will bring together time

series and systems analysis to provide ... specialistsMarine applications of noise and vibration control with a new tool ...make time series analysis useful

are also a dominant theme. Five papers were related to engineers and scientists. This book is application - .

to off-shore platforms, and another five had to do oriented . . . both stochastic and deterministic ap-with surface vessels. proaches are presented." This procedure has been

applied to machine tools, systems analysis, nuclearIn the area of probability analysis applied to traffic power plant surveillance, vibration analysis, and

noise and transmission loss of building structures was biomedical engineering.a series of eight papers co-authored by M. Ohta ofHiroshima University. These contributions are charac- The book contains 11 chapters and an elaborate

terized by a degree of mathematical sophistication appendix including computer programs. Chapter 1

2. 2.

2.0

. . . . . . . . . . . . . . . . . . .,. ,."-.. . . . .

introduces time series: correlation, regression, dy- dynamic stability are described. The concludingnamics, stochastic difference/differential equations, sections cover the A (2) model from discrete data,and applications. The next chapter covers autore- including spectral estimation and the effects of --

gressive moving average models (ARMA) in detail. sampling interval, natural frequency, and damping. 0Topics include simple and multiple regression models, Examples considered are profile model characteriza-first order autoregression models such as random tion of a grinding wheel and experimental verifica- . .

walk, second order ARMA -- also designated ARMA tion of a proposed ARMA model and true value. The " -

(2, 1) -- a nonlinear model of ARMA (2, 1), and reviewer believes that this method will be most .

least square estimates in simple and multiple regres- used in random vibration theory, response spectrasions. Chapter 3 describes characteristics of the analysis, and experimentation applied to random •

ARMA model including Green's function, implicit vibration analysis.and explicit ARMA (2, 1) systems in terms of Green'sfunction, and higher order ARMA models, i.e., The next chapter is concerned with the AM (2, 1)ARMA (m, n). The next section discusses auto- model and its application to exponential smoothing.covariance functions as applied to AR (1), MA (1l, Chapter 9 treats stochastic trends and seasonality "and ARMA (2, 1) models as well as the relationship with application to money market rates, investmentbetween Green's function and the autocovariance modeling, and modeling of consumer and wholesalefunction. The concluding section is a short discourse price indiceson partial autocorrelation and autospectrum appliedto ARMA models. The tenth chapter focuses on deterministic trends,

seasonality, and nonstationary series includingThe next chapter has to do with modeling. Topics linear trends with crack propagation as an example. •include dynamics. autocovariance, adequacy of the For the data used the deterministic data have the

system approach, estimation of AIR and ARMA greatest influence. However, the reviewer believes "models, checks of adequacy utilizing the statistical that more extensive studies of crack propagation dataapproach of F criterion, and checks on residual will indicate that the stochastic part will exert aautocorrelations. Examples are given of a grinding greater influence. Other topics are exponential "wheel profile and mechanical vibration data using trends employing first order dynamics and differen-a higher order ARMA model. i e., ARMA (6, 5). tial equations, periodic trends, and general nonsta-

Chapter 5 reports on forecasting and includes predic- tionary models.tion as an orthogonal projection using AR (1) modelsand the general ARMA (n, m) model as examples. The topic of the last chapter is multiple series. Thisan th ge ea.A M nm o eia.xa pe. n o p sss tanfr fu ci n ,.RA inld nOther topics are exponential smoothing and rela- encompasses transfer functions, ARMA including -S

tionship with ARMA and comparisons among Weiner- velocity (i.e., ARMAV), examples, optimal control

Kolmogorov prediction theory, ARMA models, and employing minimum mean squared error controlexponential smoothing. strategy, effects of a large lag, and forecasting by

leading indicators The appendices include normal

The following chapter has to do with the uniform distribution, chi square, t, and F distribution tables.

sampling of continuous systems. First order differen- Stial equations, Dirac delta functions, first order This is a different book. The reviewer believes that aautoregressive system A (1 ), the standard stochastic table of nomenclature would be an added feature for

differential equation, a uniformly sampled first order the reader Matrix methods, although mentioned,system, and limitations of the sampling interval and should be txpanded and applied to time series analy-

autocovariance function are described. sis. Time series will become more important in test-inq It should be slanted toward modal analysis and

Chapter 7 reports on second order systems and ran- important fluid-structure aspects of data analysis.

dom vibration. Differential equations for a dampedspring-mass-system, the second order autoregressive H. Saunderssystem A (2), uniformly sampled second order 1 Arcadian Driveautoregressive systems, and regions of static and Scotia, NY 12302

16

% .-..- .-- ,'.-

. . . ..-- .

SHORT COURSES

JANUARY MACHINERY VIBRATION ANALYSISDates: February 19-22, 1985Place: Tempe, Arizona

RELIABILITY METHODS IN MECHANICAL AND Dates: August 13-16, 1985STRUCTURAL DESIGN Place: Nashville, Tennessee 0Dates: January 7-11, 1985 Dates: October 29 - November 1, 1985Place: Tucson, Arizona Place: Oak Brook, IllinoisObjective: The objective of this short course and Objective: This course emphasizes the role ofworkshop is to review the elements of probability vibrations in mechanical equipment, instrumentationand statistics and the recent theoretical and practical for vibration measurement, techniques for vibration -

developments in the application of probability theory analysis and control, and vibration correction and !and statistics to engineering design. Special emphasis criteria. Examples and case histories from actualwill be given to fatigue and fracture reliability, vibration problems in the petroleum, process, chem-

ical, power, paper, and pharmaceutical industriesContact: Special Professional Education, Harvill are used to illustrate techniques. Participants haveBldg., Box 9, College of Engineering, University of the opportunity to become familiar with these tech-Arizona, Tucson, AZ 85721 - (602) 621-3054. niques during the workshops. Lecture topics include: .0

spectrum, time domain, modal, and orbital analysis;determination of natural frequency, resonance, and

FEBRUARY critical speed; vibration analysis of specific mechani-cal components, equipment, and equipment trains;identification of machine forces and frequencies;

VIBRATION AND SHOCK SURVIVABILITY, basic rotor dynamics including fluid-film bearing .TESTING, MEASUREMENT, ANALYSIS, AND characteristics, instabilities, and response to massCALIBRATION unbalance; vibration correction including balancing,Dates: February 4-8, 1985 vibration control including isolation and damping of

*'.- Place: Santa Barbara, California installed equipment; selection and use of instrumen- . - "Dates: March 11-13, 1985 tation; equipment evaluation techniques; shop test-

* Place: Washington, D.C. ing; and plant predictive and preventive maintenance. -

Dates: May 6-10, 1985 This course will be of interest to plant engineers andPlace: Boston, Massachusetts technicians who must identify and correct faults inDates: June 3-7, 1985 machinery.Place: Santa Barbara. CaliforniaDates: August 26-30, 1985 Contact: Dr. Ronald L. Eshleman, Director, ThePlace: Santa Barbara, Calfornia Vibration Institute, 101 West 55th Street, Suite 206, 0Objective: Topics to be covered are resonance and Clarendon Hills, IL 60514 - (312) 654-2254.fragility phenomena, and environmental vibration andshock measurement and analysis; also vibration andshock environmental testing to prove survivability. MARCHThis course will concentrate upon equipments andtechniques, rather than upon mathematics andtheory. PENETRATION MECHANICS

Dates: March 18-22, 1985Contact Wayne Tustin, 22 East Los Olivos Street, Place: San Antonio, TexasSanta Barbara, CA 93105 - (805) 682-7171. Objective: This course presents the fundamental

17

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principles of penetration mechanics and their appli- case histories will be presented for both isolation andcation to various solution techniques in different damping.impact regimes. Analytical, numerical, and experi-mental approaches to penetration and perforation Contact: Dr. Ronald L. Eshleman, Director, The 0problems will be covered. Major topic headings of Vibration Institute, 101 West 55th Street, Suite 206,the course are fundamental relationships, material Clarendon Hills, IL 60514 - (312) 654-2254.considerations, penetration of semi-infinite tar .ets,

perforation of thin targets, penetration/perforationof thick targets, hydrocode solution techniques, MODAL TESTING OF MACHINES AND STRUC-

3experimental techniques. Discussions will include TURES 0such topics as fragment or projectile breakup, obliqui- Dates: March 26-29, 1985ty, yaw, shape effects, and richochet. Shock propa- Place: Manassas, Virginiagation, failure mechanisms and modeling, constitutive Dates: August 13-16, 1985relations, and equation-of -state will be presented in Place: Nashville, Tennesseethe context of penetration mechanics. Developed Objective: Vibration testing and analysis associatedfundamental relationships will he applied in the with machines and structures will be discussed in Sfollowing areas. hypervelocity impact, long rod detail. Practical examples will be given to illustratepenetration; spaced and composite armors, explosive important concepts. Theory and test philosophy of .initiation, hydrodynamic ram, fragment containment, modal techniques, methods for mobility measure-earth penetration, crater/hole size, spallation, shaped ments, methods for analyzing mobility data, mathe-charge penetration. matical modeling from mobility data, and applica-

tions of modal test results will be presented. .. SContact Ms. Deborah J. Stowitts, SouthwestResearch Institute, 6220 Culebra Road, San Antonio, Contact: Dr. Ronald L. Eshleman, Director, TheTX 78284 - (512) 684-5111, Ext. 2046. Vibration Institute, 101 West 55th Street, Suite 206, -

Clarendon Hills, IL 60514- (312) 654-2254.

VIBRATION CONTROL MAYDates: March 25-29, 1985Place: Manassas, VirginiaDates: June 3-7, 1985 ROTOR DYNAMICSPlace: San Diego, California Dates: May 6-10, 1985Objective: This vibration control course will include Place: Syria, Virginia .all aspects of vibration control except alignment and Objective: The role of rotor/bearing technology in

i " balancing. (These topics are covered in separate the design, development and diagnostics of industrial . -

Institute courses.) Specific topics include active and machinery will be elaborated. The fundamentals ofpassive isolation, damping, tuning, reduction of rotor dynamics; fluid-film bearings; and measure-excitation, dynamic absorbers, and auxiliary mass ment, analytical, and computational techniques willdampers. The general features of commercially avail- be presented. The computation and measurement •able isolation and damping hardware will be sum- of critical speeds vibration response, and stability ofmarized. Application of the finite element method to rotor/bearing systems will be discussed in detail.predicting the response of structures will be pre- Finite elements and transfer matrix modeling willsented; such predictions are used to minimize struc- be related to computation on mainframe computers, . -

tural vibrations during the engineering design process. minicomputers, and microprocessors. Modeling andLumped mass-spring-damper modeling will be used to computation of transient rotor behavior and non- .describe the translational vibration behavior of pack- linear fluid-film bearing behavior will be described.ages and machines. Measurement and analysis of Sessions will be devoted to flexible rotor balancingvibration responses of machines and structures are including turbogenerator rotors, bow behavior,included in the course. The course emphasizes the squeeze-film dampers for turbomachinery, advancedpractical aspects of vibration control. Appropriate concepts in troubleshooting and instrumentation,

18,% .'

.................................................... . ". ""

.. - .

and case histories involving the power and petro- ment. Basic pulsation theory -- including pulsationschemical industries, in reciprocating compressors and piping systems --

will be described. Acoustic resonance phenomena andContact: Dr. Ronald L. Eshleman, Director, The digital acoustic simulation in piping will be reviewed.Vibration Institute, 101 West 55th Street, Suite 206, Calculations of piping vibration and stress will be •

Clarendon Hills, IL 60514-(312) 654-2254. illustrated with examples and case histories. Tor-sional vibrations of systems containing engines and -

OCTOBER pumps, compressors, and generators, including gear- -.-

boxes and fluid drives, will be covered. Factors that_ - - - -

should be considered during the design and analysis -' -'-..

VIBRATIONS OF RECIPROCATING MACHINERY of foundations for engines and compressors will be 0Dates: October 29 - November 1, 1985 discussed. Practical aspects of the vibrations ofPlace: Oak Brook, Illinois reciprocating machinery will be emphasized. Case " "

Objective: This course on vibrations of recipro- histories and examples will be presented to illustratecating machinery includes piping and foundations. techniques.Equipment that will be addressed includes recipro-cating compressors and pumps as well as engines of Contact: Dr. Ronald L. Eshleman, Director, The ,

all types. Engineering problems will be discussed Vibration Institute, 101 West 55th Street, Suite 206,from the point of view of computation and measure- Clarendon Hills, I L 60514 - (312) 654-2254.

199

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. . . . . . ..

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NEWS ~ ~ ew onEF cuw~.,,rr.etand Future Shock andN EW S Vibration activities and events

Announcemnent

2nd NATIONAL CONFERENCE AND WORKSHOPON TAILORING ENVIRONMENTAL STANDARDS

TO CONTROL CONTRACT REQUIREMENTSJune 24-26, 1985Leesburg, Virginia

The Second National Conference and Workshop on Tailoring Environmental .Standards to Control Contract Requirements will be held June 24-26, 1985 at the SXerox Facility in Leesburg, Virginia. This meeting is sponsored by the Instituteof Environmental Sciences.

For further information contact: Institute of Environmental Sciences, 940 E.Northwest Highway, Mt. Prospect, Illinois 60056- (312) 255-1561.

Announcement

19th MIDWESTERN MECHANICS CONFERENCE S

September 9-11, 1985Columbus, Ohio

The Nineteenth Midwestern Mechanics Conference will be held September 9-11,.1985 at The Ohio State University, Columbus, Ohio. Midwestern Mechanics Con-ferences have been held every two years since 1949. The program will consist of -keynote and invited lecturers, as well as contributed papers. Contributed papers aresolicited in all areas of mechanics.

For further information contact: Dr. A.W. Leissa, Department of EngineeringMechanics, Ohio State University, 155 W. Woodruff Avenue, Columbus, Ohio43210 - (614) 422-2731. S

20

20

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ABSTRACTS FROMTHE CURRENT LITERATURE

7

ABSTRACT CONTENTS

MECHANICAL SYSTEMS .... 23 MECHANICAL COMPONENTS. 33 MECHANICAL PROPERTIES..54

Rotating Machines ....... 23 Absorbers and Isolators . . .33 Damping ............. 54 -

Metal Working and Tires and Wheels ......... 35 Fatigue .............. 55Forming .......... 25 Blades ............... 35 Elasticity and Plasticity ... 56

Materials Handling Bearings .............. 35 Wave Propagation ....... 59Equipment ......... 25 Gears ............... 36

Couplings ............. 37Linkages ................ 37 EXPERIMENTATION ....... 59

STRUCTURAL SYSTEMS ... 26 Seals ............... 38Measurement and Analysis .59

Bridges .............. 26 Dynamic Tests ......... 63Buildings ............. 26 STRUCTURAL COMPONENTS. 38 Scaling and Modeling.63Scln adM deig..... 63-°

Towers .............. 26 Diagnostics ............ 63Foundations ........... 26 Strings and Ropes ....... 38 Balancing ............. 64 - ..Harbors and Dams ....... 28 Cables ............... 38 Monitoring ............ 64Construction Equipment. 28 Bars and Rods .......... 39 . . o ri . . -. 6Power Plants........... 28 Beams ............... 40

Panels ......... ... ... 41Plates ............... 42 ANALYSIS AND DESIGN .... 65

VEHICLE SYSTEMS ........ 29 Shells .............. 44..Pipes and Tubes ........ 47 Analytical Methods ...... 65

Ground Vehicles ........ 29 Ducts ............... 48 Statistical Methods ...... 67

Ships ................ 29 Building Components ..... Design Techniques.......67Aircraft . . . .31 Computer Programs ...... 67

Missiles and Spacecraft .... 33DYNAMIC ENVIRONMENT... 49 .

GENERAL TOPICS........68BIOLOGICAL SYSTEMS ..... 33 Acoustic Excitation ...... 49

Shock Excitation ........ 51 Tutorials and Reviews .... 68

Human .... ....... 33 Vibration Excitation 52 Bibliographies.......... 69

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AVAILABILITY OF PUBLICATIONS ABSTRACTED

None of tte publications are available at SVIC or at the Vibration Institute, exceptthose generated by either organization.

Periodical articles, society papers, and papers presented at conferences may beobtained at the Engineering Societies Library, 345 East 47th Street, New York,NY 10017. or Library of Congress, Washington, D.C., when not available in localor company libraries. 0

Government reports may be purchased from National Technical InformationService, Springfield, VA 22161. They are identified at the end of bibliographic

citation by an NTIS order number with prefixes such as AD, N, NTIS, PB, DE,NUREG, DOE, and ERATL.

Ph.D. dissertations are identified by a DA order number and are available from

University Microfilms International, Dissertation Copies, P.O. Box 1764, AnnArbor, Ml 48108.

U.S. patents and patent applications may be ordered by patent or patent applica-tion number from Commissioner of Patents, Washington, D.C. 20231.

Chinese publications, identified by a CSTA order number, are available in Chinese

or English translation from International Information Service, Ltd., P.O. Box24683, ABD Post Office, Hong Kong.

When ordering, the pertinent order number should always be included, not theDIG EST abstract number.

A List of Periodicals Scanned is published in issues, 1,6, and 12.

2 2

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MECHANICAL SYSTEMS An extensive search was made of existing experiments andcalculations based on the various prediction methods weremade. This study shows that present analyses are adequate

to predict the spectra from a wide variety of experimentson fans, full-scale and model-scale helicopter rotors, windturbines, and propellers to within about 5 to 10 dB. Betterknowledge of the inflow turbulence improves the accuracy

ROTATING MACHINES of the predictions.

(Also see Nos. 2743, 2796) . .- '-

84.2630 84-2632Broadband Rotor Noise Analyses Finite Element-Integral Acoustic Simulation ofA.R. George and S.-T. Chou JT15D Turbofan EngineCornell Univ., Ithaca, NY, Rept. No. NASA-CR- K.J. Baumeister and S.J. Horowitz3797, 98 pp (Apr 1984) NASA Lewis Res. Ctr., Cleveland, OH 44135, J. Vib.,N84-22365 Acoust., Stress, Rel. Des., Trans. ASME, 106 (3),

pp 405-513 (July 1984) 14 figs, 2 tables, 22 refsKey Words: Rotors, Noise generation

Key Words: Turbofan engines, Simulation, Finite elementThe various mechanisms which generate broadband noise on technique, Noise prediction, Engine noisea range of rotors studied include load fluctuations due toinflow turbulence, turbulent boundary layers passing the An iterative finite element integral technique is used to 5blades' trailing edges, and tip vortex formation. Existing predict the sound field radiate,, from the JT15D turbofananalyses are used and extensions to them are developed inlet. The sound field is divided into two regions: the soundto make more accurate predictions of rotor noise spectra field within and near the inlet which is computed using theand to determine which mechanisms are important in certain finite element method and the radiation field beyond thecircumstances. Calculations based on the various prediction inlet which is calculated using an integral solution technique.methods in existing experiments were compared. The present The velocity potential formulation of the acoustic waveanalyses are adequate to predict the spectra from a wide equation was employed in the program. •variety of experiments on fans, full scale and model scalehelicopter rotors, wind turbines, and propellers to withinabout 5 to 10 dB.

84-2633Experimental Measurement of Alford's Force in Axial

84.2631 Flow Turbomachinery

Comparison of Broadband Noise Mechanisms, Anal- J.M. Vance and F.J. LaudadioTexas A&M Univ., College Station, TX 77843, J.yse, and Experiments on Rotors----" "A.Rs. andGxpeore a t on-T Rtors Engrg. Gas Turbines Power, 106 (3), pp 585-590

A.R. George and S.-T. Chou(Jl19418fg,6rsCornell Univ., Ithaca, NY, J. Aircraft, 21 (8), pp 583- (July 1984) 18 figs, 6 refs592 (Aug 1984) 15 figs. 58 refs SKey Words: Turbomachinery, Force measurement, Fluid-

induced excitation, Experimental dataKey Words: Rotors, Noise generation, Turbulence, Vortexshedding This paper presents the results of experimental measure-

ments made on a small, high-speed, axial-flow test apparatusA study is made of the various mechanisms which generate to verify the existence of Alford's force and to investigatebroadband noise on a range of rotors, The sources considered the validity of his mathematical prediction model, Theare load fluctuations due to inflow turbulence, turbulent measurements show that the cross-coupled aerodynamic 9boundary layers passing the blades' trailing edges, and tip force is linearly proportional to rotor eccentricity and tovortex formation. Vortex shedding noises due to laminar stage torque, as predicted by Alford's theory. However,boundary layers and blunt trailing edges are not considered it was found that the force is also speed-dependent, and -''" -as they can be prevented in most cases. Various prediction that the inlet flow conditions to the stage have a pronounced . -'. -

methods have been reviewed and extended in some cases. effect.

23

84-2634 J.M. Fitzgerald and G.C. LauchleFlight Effects on Fan Noise with Static and Wind- Pennsylvania State Univ., Box 30, State College, PATunnel Comparisons 16804, J. Acoust. Soc. Amer., 76 (1), pp 158-166J.S. Preisser and D. Chestnutt (July 1984) 13 figs, 2 tables, 21 refs 0NASA Langley Res. Ctr., Hampton, VA, J. Aircraft,21 (7), pp 453-461 (July 1984) 17 figs, 25 refs Key Words: Fans, Noise reduction, Electronic test equip- --

ment

Key Words: Turbofan engines, Turbofans, Fans, Noise*generation, Flight simulation, Aircraft noise The discrete frequency noise radiated from representativ .e

types of axial-flow fans used in electronic equipment isstudied in detail. Narrow-band analysis of the discrete fre-

A flight test program utilizing a JT15D-1 turbofan engine has

been conducted with the objective of studying flight effects quency noise radiated by these types of fans has been con-

on fan noise and evaluating the simulation effectiveness of ducted in an anechoic environment. The farfield sound

* both a wind-tunnel and a static test configuration incorpo- pressure level and radiated directivity of the discrete fre-

rating an inlet control device (ICD). In conjunction with quency noise are presented. The influence of operating

* synchronized laser-radar tracking and meteorological profile condition on the radiated sound is determined.

information, data obtained from a linear array of groundmicrophones were narrowband-analyzed and ensemble-averaged to yield highly accurate far-field flight acousticresults. Utilizing appropriate corrections, flight, wind-tunnel,and static acoustic data were normalized to a static-equiva-lent, 100-ft radius, lossless reference condition. Data com- 842637parisons showed that both the static test with ICD and Aerodynamic Far Field Noise in Idling Circular Saw-wind tunnel were generally very effective in simulating blades .flight blade-passage-frequency noise levels. C.D. Mote, Jr. and Wen Hua Zhu

Univ. of California, Berkeley, CA 94720, J. Vib.,Acoust., Stress, Rel. Des., Trans. ASME, 106 (3), pp441-446 (July 1984) 7 figs, 12 refs

84-2635Vane Stagger Angle and Camber Effects in Fan Noise Key Words: Saws, Circular saws, Blades, Noise generationGenerationJ.B.H.M. Schulten The acoustic pressure radiated to the far field from dipole

sources at the rim of a rotating circular sawbiade is investi-National Aerospace Lab., NLR, Amsterdam, The gated theoretically and experimentally. Scattering from the

S.Netherlands, AIAA J., 22 (8), pp 1071-1079 (Aug sawblade surfaces and the presence of dipole source compo-

1984) 7 figs, 7 refs nents in both the normal and radial coordinate directionsexplain the observed directivity and the dependence of the

Key Words: Fan noise, Noise generation, Ducts, Vanes sound pressure upon sawblade rim velocity.

The problem of sound generated by the interaction ofvelocity disturbances with stator vanes in an annular ductis considered theoretically. The duct carries a uniformsubsonic main flow and is assumed to be anechoic. In thisproblem it seems consistent to model the vanes by flat plates 84-2638

parallel to the duct axis. However, this modelino -nay yield Vortex Shedding: The Source of Noise and Vibrationan unrealistically low acoustic power. In the pi !sent paper in Idling Circular Saws

" a nonplanar lifting surface approximation of the vanes shows M.C. Leu and C.D. Mote, Jr.-" that at frequencies prevailing in current turbofans even a Cornell Univ, Ithaca, NY 14853, J. Vib., Acoust.,

small vane inclination significantly affects the sound genera- R,tion process. Stress, Rel. Des., Trans. ASME, 106 (3), pp 434-440

(July 1984) 13 figs, 1 table, 15 refs

Key Words: Saws, Circular saws. Noise generation. Vibration84-2636 generation, Vortex shedding

Reduction of Discrete Frequency Noise in Small. Vortices separating from the edges of cutting teeth were

Subsonic Axial-Flow Fans shown to be the dominant source of pressure fluctuation

24

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and hence noise in circular saws. Measurements of pressure excited. It was also shown that behavior of the work dis-

on the surfiaces of the blade and teeth showed: strong peri- placement rotating around the origin during the vibrationodicity of the pressure on the tooth lateral surfaces, a 180 could be explained by taking into account a resistive forcedegree phase difference between the pressure variations which is inversely proportional to the cutting speed and is

*on both tooth lateral surfaces, and pressure variations domi. proportional to the velocity of the vibration. Phase differ-*nantly occurring on the tooth surfaces rather than the blade ence of the vibration occuring for each turn of the work*surfaces. The presence of an afterbody, downstream of the was measured by making use of a microcomputer system.

blade and tooth edges of flow sqparation, was found neces-* sary for significant aerodynamic excitation of the blade and

generation of noise by the flow.

84-2641Buckling Loads and Natural Frequencies of Drill

METAL WORKING AND FORMINGBisadFueCterjEB. Magrab and D.E. GilsinnNational Bureau of Standards, Washington, DC

84-2639 20234, J. Engrg. Indus., Trans. ASME, 106 (3), ppMeans for the Reduction of Machine Tool Noise 196-204 (Aug 1984) 10 figs, 17 refs(Wege zur Geibuschneinderung an spanenden Werk-zeugmaschine a) Key Words: Drills, Buckling. Natural frequencies, Mode

M. Kiocker shapes. BeamsVDI-Z., 126 (10). pp 345-351 (May 1984) 11 figs,

l0 refs The buckling loads, natural frequencies and mode shapes of . -(inura n e twist-drill bits and certain fluted cutters under a variety of(bneran) combinations of twist angle. cross-section geometry, and

axial loading have been obtained. The drill bit is modeledKey Words: Machine tools, Noise reduction. Design tech- as a twisted Euler beam under axial loading that is clampedniques, Finite element technique. Computer programs at both ends. The governing system of differential equations

is solved by the Galerkin procedure. Explicit forms for theThe concept of noise reduction of machine tools should be basis functions used to generate the Galerkin coefficientsintegrated into the construction stage and improvements are presented in general form in an appendix. They may becarried out on the finished equipment. The paper describes used for obtaining numerical results for that class of prob-possibilities for the analysis of noise generation and the ems which use the Rayleigh-Ritz-Galerkin methods withappropriate means for attacking the problem. One of such beam-type functions as the basis functions.means is finite element technique combined with a digitalcomputer program. The theoretical results are confirmedby means of a silent machine tool gear and a gear box.

MATERIALS HANDLING EQUIPMENT

84-2640 84.2642Self-Ecited Chatter and Its Marks in Turning Accidental Loads in Crane Girders: A Case StudyT. Kaneko, H. Sato, Y. Tani, and M. 0-Honi A.J. Reis, C.S. Oliveira, and J.R.T. AzevedoInst. of Industrial Science, Univ. of Tokyo, 22-1, Tech. Univ. of Lisbon, Portugal, ASCE J. Struc.Roppongi 7 chome, Minato-ku, Tokyo, Japan, J. Engrg., LjtQ (7), pp 1679-1686 (July 1984) 7 figs.Engrg. Indus., Trans. ASME, 106 (3), pp 222

(Aug 1984) 20 figs, 16 refsKey Words: Girders, Cranes (hoistsl

Key Words: Chatter, Lathes, Machine toolsThe case of a crane transporting a large mass suspended by

Investigations were made on self-excited chatter of the work two sets of cables is considered. The dynamic behavior andwhich is held at one end on a lathe machine. Analysis was the forces induced in the crane, due to the failure of one ofcarried out by a two-degrees-of-freedom system. It was the hanging mechanisms, are studied using two 3 degreesverified that introduction of the multiple regenerative effect of freedom mathematical models. The highly nonlineargoverns the finite amplitude of the vibration after it is differential equations of motion are derived and integrated

25

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......................................... .NO IN E . U MEN......... .... ... .... ... .... ... .... ...

....... ...... ....... ...... ....... ......

by Runge-Kutta algorithm. The influence of the stiffness Through modal analysis, the model participation factor and

of the cables, the initial configuration of the system, the the modal ground acceleration in consideration of the phase-value of the hanging force corresponding to the cable release, different effect are obtained, so that the influence of the .

and the stiffness of the braking system of the trolley are phase-different effect can also be judged in a response spec- 0

analyzed. trum of this modal ground acceleration.

BUILDINGS "''

STRUCTURAL SYSTEMS -UL-G

84-2645Circu-Rectangular Bundled Tube Office Tower - A

BR IDGES Cae HistoryJ.S. NotchEllisor & Tanner, Inc., Houston, TX, ASCE J. Struc. S

84-2643 Engrg., 110 (7), pp 1598-1612 (July 1984) 12 figs "Role of indicial Functions in Buffeting Analysis ofBridges Key Words: Buildings, Multistory buildings, Towers, Wind-

R.H. Scanlan induced excitation

Princeton Univ., Princeton, NJ 08544, ASCE J.This paper documents the structural design and analysis as S

Struc. Engrg., 110 (7), pp 1433-1446 (July 1984) it evolved in the planning of a new office tower. Aeroelastic2 figs, 30 refs wind tunnel models predicted that extreme dynamic oscilla-

tion of the tower may occur due to the configuration of

Key Words: Bridges, Flutter, Wind-induced excitation existing tall buildings surrounding the site. Dynamic windforce resistance for the silver reflective glass structure was

The problem of the wind buffeting of bluff bodies, in this provided by a four-celled bundled framed tube system. Theinstance bridge decks, is reexamined from the standpoint bundled tube frames are comprised of two-story high treeof linearized theory. The links of flutter derivatives to aero- column modules located at 15 ft on centers around the . .

dynamic indicial functions are first recalled and extended. building perimeter. The interior tubular cell partitions are

The possibility that these functions offer of simplifying framed by three tree beam diagonal truss frames quadsecting -

investigative aerodynamic tests of bridge models is discussed, the tower's curvirectangular plan shape.The gust response problem is set up for a two-dimensionalmodel in the time domain, employing aerodynamic indicialfunctions. A theoretical framework is offered for future "wind tunnel model investigations under turbulent flow.

TOWERS(See No. 2645)

84-2644Earthquake Response Analysis of Cable-Stayed FOUNDATIONS --

Bridges under the Action of Travelling Waves (Also see Nos. 2759, 2760)(Also ~~ se o. 9 2760)

Xiang HaifanJ. of Tung-Chi Univ., (2), pp 1-9 (1983)CSTA No. 624-83.107

84-2646Key Words: Bridges, Cable-stayed structures, Phase effects, Effect of Embedment on Foundation-Soil Imped.Earthquake response, Seismic response, Model analysis ances

A.N. Lin and P.C. JenningsThe influence of the phase-different effect on earthquake ' '"

response of a bridge is analyzed. The equation of motion of California Inst. of Tech., Pasadena, CA, ASCE J.a cable-stayed bridge under non-coherent excitation of Engrg. Mech., 110 (7), pp 1060-1075 (July 1984) - ......supports is derived using the matrix of influence function. 7 figs, 3 tables, 36 refs

26

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7S

Key Words: Interaction: soil-foundation, Mechanical imped- minimum numerical effort. The purpose of this paper is toance, Buildings extend the use of these vectors to the solution of wave

propagation and foundation response problems. The methodA 10ft square, one-story model structure was subjected to is applied to one-, two- and three-dimensional problems.horizontally incident SH-waves to determine the effect offoundation embedment on the response. Structural andfoundation-soil impedances were calculated from the funda-mental resonant frequency and mode shape. The resultingimpedance values and embedment factors were then com- 84-2649 ... ..

pared to theoretical values. The translatory and rocking Running Stability of Large Rotor Bearing Founda- 7 -

impedances for the unembedded case were found to be in tion Models (Laufstabilitaet grosser Rotor-Gleitlager- 9agreement with values obtained from analytical formulations. Fundament.Konstruktionen)

D. BosinTechnische Univ., Berlin, Fed. Rep. Germany, Rept.No. ILR-MITT-124/1983, 71 pp (1983)

84-2647 N84-21887

Dynamics of Structures on Two-Spring Foundation (In German) •Allowed to UpliftC.-S. Yim and A. K. Chopra Key Words: Foundations, Machine foundations, Bearings, "

Univ. of California, Berkeley, CA, ASCE J. Engrg. Rotors, Stability, Finite element techniqueMech., 110 (7), pp 1124-1146 (July 1984) 7 figs,10 refs A finite element model of large turborotors including stiff-

ness and damping of bearings and foundation and rotor

stiffness was developed. A modal condensation procedure -

Key Words: Foundations, Rigid foundations, Elastic supports was employed to reduce substructure unknowns and thestability limit was iterated by eigenvalue computation. . -

The dynamics of structures with their foundation mat Threshold speed and unstable eigenfrequency was calcu- . - -

supported only through gravity and thus permitted to uplift lated for a system of 16 reduced degrees of freedom (rotor-from the supporting system, are investigated. In its fixed bearing model) and for a system of 46 reduced degrees ofbase condition the structure is idealized as a single-degree- freedom (rotor-bearing-foundation model). The influenceof-freedom system attached to a rigid foundation mat, which of rotor mass and stiffness, oil film stiffness and damping, Sis supported at each edge by a spring-danmper element. Ana- Sommerfeld number, types of journal bearings, and mass,lytical expressions are presented for the free vibration re- stiffness, and damping of the foundation was studied.sponse of the system and the effects of foundation upliftare examined. An effective numerical procedure, based onexpressions of the Rayleigh-Ritz concept, to evaluate thestructural response to earthquakes, is presented.

84-2650 .Lateral Response of a Single Pile in OverconsolidatedClay to Relatively Low Frequency Harmonic Pile-

84-2648 Head Loads and Harmonic Ground Surface Loads

Use of Ritz Vectors in Wave Propagation and Foun- G.W. Blaney

dation Response Ph.D. Thesis, Univ. of Houston, 505 pp (1983)

E.P. Bayo and E.L. Wilson DA8408976 SUniv. of California, Berkeley, CA, Earthquake Engrg.Struc. Dynam., 12 (4), pp 499-505 (July/Aug 1984) Key Words; Pile structures, Clays, Harmonic excitation

3 figs, 4 tables, 6 refs The results of horizontal harmonic pile-head load tests on

a single 10-inch diameter steel pipe pile imbedded in stiffKey Words: Foundations, Wave propagation, Finite element over-consolidated clay are presented. The measured responsetechnique, Ritz method of the pile to harmonic ground-surface loads is also pre- 0

sented. The dynamic response of the instrumented pile cap,The accuracy of a numerical method is demonstrated for the pile, and surrounding soil were recorded on a high-resolu-dynamic analysis of large complex finite element systems in tion 60-channel digital recording system, and transfer func- ' - -

which the spatial distribution of the loading is constant. The tions were computed between the input loads and all instru-method is based on the use of a special class of Ritz vectors ment locations by a software system developed specially for , -

which were previously proposed and can be generated with the project.

27

_ . . ... . .. . .. . .. . . .. . .. . . .. . . . . . . . . . . . . .. . . . . .%. %..........................

84-2651 Key Words: Dams, Sloshing, Geometric imperfection effects,

Laboratory Investigation of Vibratory Compaction of Fundamental frequency

Dry Soils Complex variable methods have been devised to investigate SC. . Webster the effect of geometric irregularities on the dynamic charac-

Army Military Personnel Ctr., Alexandria VA, 118 teristics of inviscid liquids in circular basins. The fundamental

pp (May 1984) frequency of the slosh mode has been determined by the

AD-A140 218 stationary property of Schwarz quotients. Lower and upperbounds for the frequency have been obtained by a compari- ' . -

Key W : Sson theorem. Results show that frequencies are decreasede d s t hwith the increase of out-of-roundness parameters.

In arid regions where water may not be available for standardfield compaction operations, compaction of soils at lowmoisture contents may be necessary. To determine whetherthese cohesive and cohesionless soils can be adequately com-pacted in a dry state, a laboratory vibratory soil compactor CONSTRUCTION EQUIPMENTwas built and used to conduct the investigation. After ana- (See No. 2651)

lyzing the effects of frequency of vibration, acceleration, Sstatic weight, and moisture content on compaction, a com-

parison of the unit weights obtained by standard and vibra-tory methods was made.

POWER PLANTS(Also see No. 2702)

HARBORS AND DAMS 84-2654

Investigation of the Earthquake Behavior of theResearch Reactor FRJ-2 (Dido)

84-2652 J. Altes, H. Graffi, and D. KoschmiederEffect of Artificial Gaps on the Dynamic Behaviours Inst. fuer Nukleare Sicherheitsforschung, Kernfor-

of Dams schungsanlage Juelich GmbH, Fed. Rep. Germany, -.

Zhou Jing, et al Rept. No. JUEL-SPEZ-222, 26 pp (Oct 1983)

China Civil Engrg. J., 16 (3), pp 33-44 (1983) N84-22047

CSTA No. 624-83.119Key Words: Nuclear reactors, Earthquake response

Key Words: Dams, Discontinuity containing media, Naturalfrequencies Finite element calculations were carried out for the reactor

FRJ-2 in order to determine its integrity after an earthquake.

The frequency drop in free vibration of an elastic structure Results indicate a displacement of 5 mm occurring duringafter artificial gapping is demonstrated. A simplified meth- 0.25 g safe shutdown earthquake for the reactor block in

aftthe horizontal andin vetia directionsd an 16mpmmfforthehod -- ascending the matrix order and perturbation -- is pro- the horizontal and vertical directions, and 16 mm for the

Posed to determine the free vibration characteristics of an craneway in the horizontal direction, but without danger

elastic structure with and without gaps. Numerical examples for the primary circuit. Ocalculating the free vibration characteristics of a gappedgravity dam and an arch dam are given.

84-2655The Generation of Spectrum Compatible Accelero-

84-2653 grams for the Design of Nuclear Power Plants 0On Free Liquid Oscillations in Irregular Basins A. PreumontH.M Safwat Belgonucleaire, Rue du Champ de Mars, 25 1050,

Univ. of Alexandria, EI-Hadrah, Alexandria, Egypt, Brussels, Belgium, Earthquake Engrg. Struc. Dynam.,ASCE J. Engrg. Mech., 110 (7). pp 1147-1160 (July 12 (4), pp 481-497 (July/Aug 1984) 9 figs, 1 table,1984) 18 refs 56 refs

28

% .- "o. °

28 " -.. •

....... ........ :.:.,-. ... ... ,,:............,..............,......, . .. , .,, .,.,, .,.,.....:..L -- ,

°" ° L" " ' " = ."-.'. ' '=-'."=:-" - .' t' .m=m ~ lh'. ' .' .= -. = .. ' _° ,_ ° .. o_ .. .-. - . . S Sa, .

- . - - - -- - - - -•.... . .

Key Words: Nuclear power plants, Seismic design, Accelero- Indian Inst. of Tech., Delhi, Hauz Khas, New Delhi --grams 110016, India, J. Sound Vih., 94 (3), pp 365-379

Based on the main features of the computer program THGE, (June 8,1984) 11 figs, 6 tables, 8 refs

the paper reviews the techniques which are available for theconstruction of an accelerogram whose response spectrum Key Words: Railroad trains, Draw-bars, Transient response,

matches a design spectrum. A sample accelerogram is gener- Modal analysis

ated as the product of the stationary random sequence by a - "deterministic shape function. Procedures are described which This paper deals with the theory and development of a

are available, both in the frequency domain and in the time computer-oriented mathematical model to determine the

domain, to improve the agreement between the response transient response and coupling (draw-bar) forces of a train-

spectrum and the target. consist subjected to different train handling conditions. Thelongitudinal motion is assumed to take place independentlyand the equations of motion for the system are set up in amatrix form. A transfer matrix method is adopted to deter-mine the free vibration characteristics. The response of thesystem due to the transient forces is obtained by model

VEHICLE SYSTEMS analysis with account taken altogether of five modes, includ-ing the rigid body mode. The displacement response and thedraw-bar forces obtained for a typical train-consist arepresented in tables and figures. The computer programsdeveloped can be used to lay down train handling and makeup procedures to avoid possible dangerous conditions ofGROUND VEHICLES draw-bar failures.

(Also see No. 2806)

84.2656

Design Features of Low-Noise Tire Treads (Kon- 84-2658struktionumerkmale geriuseharmer Reifenprofde) Curving Simulation of Four Axle Railway VehiclesT. Reese, D. Denker, G. Muller, and D. Zoglowek with Conventional Two Axle BogiesAutomobiltech. Z., 86 (6), pp 261-264 (June 1984) T. Hirotsu, F. Iwasaki, K. Terada, and M. Ariga -

16 figs, 8 refs Hitachi Res. Lab., Hitachi, Ltd., Mito, Japan, Bull.(In German) JSME, 27 (228), pp 1272-1279 (June 1984) 15 figs,

5 ref sKey Words: Interaction: tire-pavement, Noise reduction,Noise generation Key Words: Railroad cars, Cornering effects, Interaction: r.

rail-vehicle .This paper deals with the influence of car tires' tread patterndesign on tire/road noise. With the aid of modern acoustic A dynamic model is developed for curving of four axle rail -.. - .. --

measuring technology, a large number of tires with geometri- vehicles with conventional two axle bogies, and equations of ' .. -

cally simple tread patterns, as well as standard tires, were their motion are derived. Digital simulations are made totested systematically in respect to noise. All measurements obtain time history of rail-wheel vertical and lateral forceswere made with vehicles on the road. From the results of during curving.these investigations conclusions were drawn regarding techni-cal measures intended to improve the noise characteristicsof tires' tread patterns.

SHIPS

84-2657 84-2659Mathematical Modelling to Simulate the Transient A Method for the Prediction of Noise and VelocityDynamic Longitudinal Force in Draw Bars of a Train- Levels in Ship ConstructionsConsist A.C. NilssonJ.S. Rao, E. Raghavacharyulu, and N. Kumar Danish Acoustical Inst., Technical Univ., Bldg. 352,

- .-

. -. -..

29"""""

:: - . .. . •. % ' . ... °. -,.. - , ... - - - . - . . - . -• . . ... " ° ° - , . .. . ,4 !- .,. : ._ :

DK-2800, Lyngby, Denmark, J. Sound Vib., 94 (3), In this paper the dynamics is considered from the perspective

pp 411-429 (June 8, 1984)11 figs, 23 refs of the Navy. Some trends in that area are examined andsome problems that will require attention in the future are

Key Words: Ships. Noise prediction, Noise reduction highlighted.

Models describing the propagation of flexural waves inribbed steel structures typical for ship constructions arepresented. Two models are discussed. One is valid in the lowfrequency range -- in the octave bands with center frequen- 84-2662cies from 31.5 Hz to 125 Hz. The other model can be usedin the 250 Hz to 8 kHz octave bands. Predicted results are Fatigue Considerations in View of Measured Load

compared to the results of full-scale measurements carried Spsectra

out on a ship. W.G. Dobson, R.F. Brodrick, J.W. Wheaton, J. Gian-notti, and K.A. StambaughTeledyne Engineering Services, Waltham, MA, Rept.No. TR-3049-4, SSC-315, 59 pp (1983)AD-A140 221

84-2660Upper Ball Joint Force Variations Due to Riser Key Words: Ships, Fatigue life, Experimental dataTensioner and Vessel MotionsJ.E. Lovell Crack propagation in HY-80 and CS ship steel under typical

ship loading time-histories was studied, The loading his.Ph.D. Thesis, Texas A&M Univ., 119 pp (1983) tories were selected from recorded service stress data which "

DA8408452 were generated during voyages by the SL-7 containership. ,, SSamples of the data were imposed on laboratory specimens . -

Key Words: Ships, Marine risers as a tape loop signal speeded up by a factor of 25. Analysisof the results indicated that the crack growth during this .

An analysis of the variation of forces acting on the upper random loading compared closely with that of constant- - -

ball joint of a riser string due to drill ship motion and riser amplitude loading if the stress intensity range were expressed -

tensioner dynamics has been conducted. The analysis in- as the root-mean-square. It was also determ;ned that signifi-."cludes the effect of breakaway torque on the tensioner cant crack growth retardation effects were present and that 5sheaves while assuming vessel and upper ball joint motion omission of low-amplitude high-frequency components of-.to be independent. General equations for the tensioner cable the loading had little effect on the time rate of growth of .

forces and for the forces exerted on the riser upper ball cracks.joint by the slip joint-tensioner system are derived and - -'-'-

solved. The variation in tensioner cable forces is compared -'" "-.-.to data generated in field operations. ._- . .

84-2663

Measurements of the Impulse Response and Reverber-ation Underwater in the Depresurized Towing Tank . - -

84-2661 MarinReflections on Trends in Dynamics - The Navy's A. DebruijnPerspective Technisch Physische Dienst TNO-TH, Delft, The 0HC. Pusey Netherlands, Rept. No. TPD-208.730/1, TDCK-NKF Engineering Associates, Inc., Vienna, VA, 78124, 27 pp (Dec 21, 1982)Shock Vib. Bull., No. 54, Pt, 1, pp 59-64 (June N84-223741984) 18 refs (Proc. Shock Vib. Symp., Oct 18-20, (In Dutch)

1983, Jet Propulsion Lab., Pasadena, CA. Spons.SVIC, Naval Res. Lab., Washington, DC) Key Words: Underwater structures, Towed systems, Impulse

responseKey Words: Ships

The underwater impulse response of a depressurized towing . . - •Dynamics, that branch of mechanics which deals with forces tank was determined. An electrodynamic underwater sound .-. -

and their relation to the motion of bodies, is an area that is source generated a chirp consisting of a relatively longimportant to designers of equipment for all types of systems. sinusoidal pressure signal with frequency modulation, By

30

% -",. . . . . . .--.- °-*"."

signal processing, the chirp was compressed to a short ideal- jet. Because of the temperature and flow discontinuityized pulse. The ref lectograms obtained with the chirp are between the jet and the surrounding air, the parallel jet actsalso converted to true impulse response data. For a number at a partial barrier between the noise source and the receiver.of positions in the tank, typical for the usual hydrophones, An analytical model of jet shielding has been developedthe impulse responses are calculated with the aid of a sound consisting of the sound field emitted from a stationary, dis-source at the propeller source line. From the echograms it crete frequency point source, which impinges on a cylindercan be seen that the bottom and side wall reflections are not of locally parallel flow. The model is analyzed to identify thesignificant in comparison with the direct signal. The impulse zones in which the various shielding mechanisms dominate.response data are used to calculate the reverberation curves The effects of such parameters as jet temperature and flow.-by adopting Schroeder's concept of the integrated impulse speed are investigated. The analytical model is compared toresponse. experimental results for the shielding of a point noise source

adjacent to a subsonic, isothermal air jet.

AIRCRAFT(Also see Nos. 2634. 27921

84-2666General Equations of Motion for an Elastic Wing and

84-2664Method of SolutionMied 4e. ldin64eto al or wit heing V.J.E. Stark

lalsois hed et mol r Twon -et Shielnu Saab Scania AB, Linkoping, Sweden. AAA J 22 (8).

C.H. Gerhold and J. Gilbride pp 1146-1153 (Aug 1984) 5 figs, 4 tables. 20 refsTexas A&M Univ., College Station, TX 77843, J. Key Words: Aircraft wings. Equations of motion. Time

Vib., Acoust., Stress, Re[. Des., Trans. ASME 106 domain method

(3), pp 421-426 (July 1984) 8 figs, 15 refsEquations in the time domain for arbitrary motion of a ..

Key Words: Aircraft noise, Noise reduction, Shielding finite elastic wing in linearized flow are derived by meansof more general indicial aerodynamic coefficients than those

An analytical model to estimate the shielding of noise emit- previously defined. Solution by the Laplace transformation

ted from a point noise source has been developed assuming shows that the normal response contains a line integral that

the shielding jet to be a cylinder of constant radius with depends on the discontinuity of the aerodynamic transfer

*uniform flow across the cross section. Comparison to experi- functions across the negative real axis. For these functions,ment indicated that the model overestimates diffraction of approximations of the Garrick type are utilized in a root-sound around the jet in the far downstream region. The locus method in which no augmented states are needed.shielding jet model is modified to include widening down-stream of the nozzle exit. This not only represents a morerealistic model of she jet, but is also expected to improvethe shielding estimate downstream.

84-2667Noise Transmission Characteristics of Advanced .--

Composite Structural Materials

84-2665 LA ROUSSOS, C.A. Powell, SW. Grosveld, arid L.R.

Analysis of the Effect of Heated Jet Flow on the Far KovalNASA Langley Res. Ctr., Hampton, VA, J. Aircraft.,

Fied GrdatinfromGaNiseSoure21 17), pp 528-535 (July 1984) 8 figs, 6 tables, 0 f .

C.H. Gerhold- refsTexas A&M Univ., College Station, TX 77843, J.

Vib., Acoust., Stress, Res. Des., Trans. ASME, 10.6 oan ehd

Vib. Acust, Sres, Rs. es. Trns.ASM, ~ Key Words: Aircraft, Composite materials. Noise transmit-(3), pp 427-433 (July 1984) 8 figs, 12 refs sion"

Key Words: Aircraft noise, Noise reduction, Shielding, Noise An experimental and theoretical research program has begunshielding to develop an understanding of the noise transmission charac-

teristics of composite materials. Such an understanding will

One factor which influences the radiation of jet noise is the ensure that the weight advantage of composites in aircraftinteraction with the heated moving flow of a parallel twin fuselage design is not compromised by high noise transmit-

31

h s i i et t d n e. 0. .

84. -2667..."-.:-..... .... ....Noise Tr &a..L....an.n...n.harcteisicsof d..ce...."

sion or heavy acoustic treatments. Noise transmission tests 84-2670have been conducted on large unstiffened panels representa- Transonic Pressure Distributions on a Rectangulartive of the outer skin or inner trim panels of aircraft fuse- Supereritical Wing Oscillating in Pitch "

lages. An analytical model based on infinite panel theory has 0R ick ts Wing s an gfork Pitch

* - ~~been developed which allows for exact modeling of the R..RketM.anfr.DASidadJJanisotropic properties of the panels. Watson

NASA Langley Res. Ctr., Hampton, VA, J. Aircraft,

21 (8), pp 576-582 (Aug 1984) 14 figs, 13 refs

Key Words: Aircraft wings, Oscillation

Steady and unsteady aerodynamic data were measured

84-2668 on a rectangular wing with a 12% thick supercritical airfoil

Parameter Identification Applied to the Oscillatory mounted in the NASA Langley Transonic Dynamics Tunnel.The wing was oscillated in pitch to generate the unsteady

Motion of an Airplane Near Stall aerodynamic data. The purpose of the wind-tunnel test was

J.G. Batterson and V. Klein to measure data for use in the development and assessment of

NASA Langley Res. Ctr., Hampton, VA, J. Aircraft, transonic analytical codes. The effects on the wing pressure

21 (7), pp 498-504 (July 1984) 10 figs, 9 refs distributions of Mach number, mean angle of attack, andoscillation frequency and amplitude were measured. . -

Key Words: Aircraft vibration, Flight test data, Parameteridentification technique, Regression analysis

An application is presented of a stepwise regression incorpo-rating polynomial splines to oscillatory flight data from a .,light research airplane operating at near-stall angles of attack. 84-267-It is shown that data from several experiments can be com- Divergence/Flutter Suppression System for a Forward

bined into a large data set for analysis and that hysteresis Swept-Wing Configuration with Wing-Mounted Storesphenomena can be observed in this large data set. M. Rimer, R. Chipman, and R. Mercadante

Grumman Aerospace Corp., Bethpage, NY, J. Air-

craft, 21 (8), pp 631-638 (Aug 1984) 20 figs, 8 refs

Key Words: Aircraft wings, Wing stores, Flutter, Active

flutter control

84-2669 The conceptual design of an active control system has been

Reliability Analysis and Cost Optimization of Fa- developed for a forward swept-wing configuration with

tigue-Critical Components under Scheduled Inspec- stores to prevent the destiffening of the primary wing-bend-

tion Maintenance in Service ing mode with increasing airspeed, thereby suppressing the

Shiong Chen inherent aeroelastic instability (divergence/body-freedom-flutter). The architecture includes wing-mounted and fuse- - .

Ph.D. Thesis, The George Washington Univ., 208 pp lage-mounted accelerometers to detect relative wing motion -" .-

(1984) and an outboard wing flaperon to control this motion. By -" - "

DA8405297 virtually eliminating the instability, the design enables the . -

aircraft to carry significant wing-mounted stores while

Key Words: Aircraft, Fatigue life retaining the clean-wing flight envelope.

Conventional deterministic design of aircraft fatigue-criticalcomponents has resulted in conservation underestimationand poor utilizations of inherent fatigue life. The effect ofscheduled inspection maintenance in service normally are not

accounted for at the design stage. In this dissertation proba- 84-2672 -

bilistic methodologies are developed for reliability analyses Nonlinear Finite Element Method in Crashworthinessand cost optimization of fatigue-critical components under Analysis of Aircraft Seatsscheduled inspection maintenance in service. Emphasis is

analysis A.O. Bolukbasi and D.H. Laananenplaced on the development of retirement-for-cause analysis i an, p A. icf2 7 p5methodologies for gas turbine engine components, based on Simula Inc, Tempe, AZ, J. Aircraft, 21 (7), pp 512-fracture mechanics approach. 519 (July 1984) 15 figs, 15 refs

32

. . . .

-'~~~~~~~~~~~~~~~~~~~~~~~~~..-'.-." -..- T..-..'.... ' .....--........ '..".'-, -.-.. '.-....,- . . .-.....*%,..-.". -..- .,-,. - ,'

Key Words: Crash research (aircraft), Aircraft seats, Crash- BIOLOGICAL SYSTEMSworthiness, Finite element technique B SYSTEMS

A three-dimensional mathematical model of an aircraft seat,occupant, and restraint system has been developed for usein the analysis of light aircraft crashworthiness. Because ofthe significant role played by the seat in overall system HUMAN . .. 'crashworthiness, a detailed finite element model of the seat .structure is included. The seat model can accommodate large -. .-. .-

displacements, nonlinear material behavior, and local buck- ". - .

ling. 84-2675 "

Lubrication of Elastic-Isoviscous Line Contacts 0Subject to Cyclic Time-Varying Loads and Entrain-ment Velocities

MISSILES AND SPACECRAFT J.B. Medley and D. Dowson(Also see No. 2830) Univ. of Waterloo, Waterloo, Canada, ASLE, Trans.,

27 (3), pp 243-251 (July 1984) 7 figs, 28 refs

Key Words: Lubrication, Cyclic loading, Time dependentparameters, Joints (anatomy), Seals

84-2673DNA ICBM Technical R&D Program An analytical approach was developed for the difficult

M.I Kovel problem of predicting the dynamic variation in fluid-filmthickness of elastic-isoviscous line contacts under isothermal - -conditions. A numerical solution procedure was constructed

Vib. Bull., No. 54, Pt. 1, pp 23-41 (June 1984) 25 and applied to the experiments of Hirano and Murakami who

figs (Proc. Shock Vib. Symp., Oct 18-20, 1983, Jet were investigating the lubrication of 0-ring seals. Reasonable

Propulsion Lab., Pasadena, CA. Spons. SVIC, Naval agreement was obtained. The present approach was extended

Res. Lab., Washington, DC) to the lubrication of compliant layered surfaces as part of astudy of human ankle joint lubrication.

Key Words: Missiles 0I ----. --

After a brief introduction of the Defense Nuclear Agency, -- "-"

the DNA program on basing of primarily small missiles, " - .- -

namely hard silos and hard mobile launchers, is described. COMPONENTS "": -:

ABSORBERS AND ISOLATORS84-2674 (Also see Nos. 2710, 2743, 2806)

Air Force Space Technology Center Space Technol-ogy - Emphasis 84F.J. Redd 84-2676

Air Force Space Technology Center, Kirtland AFB, An Active Sound Absorber with Porous Plate -

NM, Shock Vib. Bull., No. 54, Pt. 1, pp 55-57 (June D. Guicking and E. Lorenz

1984) (Proc. Shock Vib. Symp., Oct 18-20, 1983, Drittes Physikalisches Institut, Univ. of Gttingen,

Jet Propulsion Lab., Pasadena, CA. Spons. SVIC, GLttingen, Fed. Rep. Germany, J. Vib., Acoust., - -

Naval Res. Lab., Washington, DC) Stress, Rpl. Des., Trans. ASME, 106 (3), pp 389-392(July 1984) 6 figs, 3 refs -

Key Words: Spacecraft, Test facilitiesKey Words: Acoustic absorbers, Active absorption

The mission of AFSTC, to centralize the planning andexecution of space technology in support of future Air Force An active equivalent of a resonance absorber with a porous

space systems requirements, is described, plate is described. The porous layer is backed by a loud- "

33- - °.. ,-- - -

... . ..... ..;.., ,...,..., ,.,,.,'.,' :.,:,:: . ._ -,. . • . . --....-.. ,. -.:, ... . . . . . .-... _... ..... ...-.. .o..................-. ...-. ,

-•,-. . . . . . .-

speaker driven such that zero sound pressure is maintained Univ. of Kentucky, Lexington, KY 40506, J. Appl.in the air gap between foil and speaker. The simultaneous Mech., Trans. ASME, 51 (2), pp 361-366 (June 1984)control of magnitude and phase has been achieved in analog 3 figs, 12 refstechnique by a combination of open-loop and closed-loopcontrol, utilizing single sideband modulation of the com-pensation signal with a weak infrasonic auxiliary signal. Key Words: Mountings, Springs, Elastomers, Vibration

analysis

The exact solution of the problem of the undamped, finiteamplitude oscillations of a mass supported symmetrically by

84-2677 simple shear mounts, and perhaps also by a smooth planeActive Impedance Control for One-imeional surface or by roller bearings, is derived for the class of S

isotropic, hyperelastic materials for which the strain energySound is a quadratic function of the first and second principal in-D. Guicking and K. Karcher variants and an arbitrary function of the third. The Mooney-

Drittes Physikalisches Institut, Univ. of G6ttingen, Rivlin and Hademard material models are special members

Gbttingen, Fed. Rep. Germany, J. Vib., Acoust., for which ihe finite motion of the load is simple harmonic

Stress, Rel. Des., Trans. ASME, 106 (3), pp 393-396 and the free fall dynamic deflection always is twice thefstatic deflection. Otherwise, the solution is described by an

(July 1984) 6 figs, 10 refs elliptic integral which may be inverted to obtain the motionin terms of Jacobi elliptic functions.

Key Words: Acoustic absorption, Active absorption, Acousticimpedance, Active control

Generalizing the concept of active sound absorption, a sys-tern for active impedance control has been developed, so far 84-2680for plane waves at normal incidence. The active reflector is Generalized Rigid-Body Dynamics System Simulationa loudspeaker driven by the incident sound wave. Its feeding

*' signal is derived from a wave separator with two microphonessplitting up the standing wave field into incident and re- Agricultural Tractorsflected wave. This system permits easy control of the reflec- P.W. Claar, I Ition coefficient and eliminates feedback instability. Ph.D. Thesis, Iowa State Univ., 405 pp (1983)

DA8407061

Key Words: Suspension systems (vehicles), Tractors - -

84-2678Antivibration Mountings. 1970 - April, 1984 (CQt- Low frequency terrain-induced tractor vibration levels

exceed proposed International Standards Organization -.-"tions from the Engineering Index Data Base) fatigue-decreased proficiency limits. A suspension system is b.

NTIS, Springfield, VA, 66 pp (May 1984) needed to protect the operator and attenuate the vibrationPB84-866177 inputs to the chassis and the operator platform for high

speed farming systems. Computer simulation modeling of the : - - -

suspension system provides information for the design and-. --Key Words: Mountings, Vibration isolators, Bibliographies au spe o m anc e The design consierati ns fo offabout its performance. The design considerations for off-

This bibliography contains 94 citations concerning mechani- road vehicle operator ride comfort, the means to improve o eval.ucal and fluid antivibration mountings. Citations are included ride comfort, and computer simulation techniques to evluwhich offer vibration damping methods for buildings as wellas machinery. New materials and new methods are discussed for the vibrational analysis of articulated planar and spatial -

in the automotive, machinery, nuclear and construction mechanisms is presented and the development of a chassis

industries. Various methods of measuring vibration are also suspension system is discussed.presented.

84-268184-2679 Eccentricities of Resultant Loads from CompressionFinite Amplitude Vibrations of a Body Supported Coil Springs (Exzentrische Lagen der Reaktionakrifteby Simple Shear Springs bei Schraubendruckfedem)M.F. Beatty G.D. Go

34• . ..- ,

S*. 'S*:::j:: **::::'.%**'.'

Kapellenstrasse 42, 5860 Iserlohn 5, Germany, Auto- BEARINGSmobiltech. Z., 86 (5), pp 227-232 (May 1984) 8 figs (Also see No. 2812)

(In German)0

Key Words: Suspension systems (vehicles), Shock absorbers, 842 3Wear842 3

Investigation of Friction and Wear of DynamicallyThe factors influencing the locations of eccentric centers, Loaded Hlydrodynamic Bearings with Abrasive Con-the seating loads and engineering applications for the future taminants-to cut development costs and time are presented. The seating A. Ronen and S. Malkinloads can be used right during the development of a suspen- Technion-Israei Inst. of Tech., Haifa 32000, Israel,sion system to gain knowledge concerning its service lifeand response when in operation. The finite-element approach J. Lubric. Tech., Trans. ASME, 105 (4), pp 559-568used was based on the theory of forces of the first order for (Oct 1983) 16 figs, 10 refsstraight beams.

Key Words: Bearings. Wear

A test system is described for investigating friction and wearof hydrodynamic bearings under cyclical dynamic loadingconditions vvith contaminant abrasive particles in the oil

TIRES AND WHEELS supply. Dynamic loading on the test bearing is synchronized(See No. 2810) with the shaft rotation, so that the oil film thickness history

can be determined from she measured shaft orbit for anypoint on the shaft and liner periphery. Either clean or con-taminated oil can be supplied to the test bearing from two

separate oil supply systems. Experimental results obtainedfor six shaft/liner bearing material combinations were similar

BLADES to those previously obtained for static loading.(Also see No. 2709)

84-2682 84-2684Flapping-Torsional Response of Helicopter Rotor Energy Loss Due to Misalignment of Journal BearingsBlades to Turbulence Excitation z.s. SafarJon-Shen Fuh Cairo Univ., Cairo, Egypt, Trib. Intl., 17 (2), pp 107-Ph.D. Thesis, Univ. of Illinois at Urbana -Champaign, 109 (Apr 1984) 5 figs, 4 refs166 pp (1983)DA8409925 Key Words; Bearings, Journal bearings. Alignment

Key Words: Blades. Propeller blades, Helicopters. Torsional An analysis of a journal bearing describing a maximum allow-

response, Turbulence. Fluid-induced excitation able value of misalignment at a length !o diameter ratio ofunity is presented. The journal misalignment is allowed to

Dynamics of a helicopter rotor system in atmospheric turbo- vary in direction up to a direction normal to the axial plane

lence is investigated theoretically. Modeling turbulence com- containing the load vector. The results demonstrate thatponents as stationary random processes, differential equa- journal misalignment influences bearing behavior.

tions governing the coupled flapping-torsional motion of arotor blade are derived. The blade is treated as being rigidand centrally hinged for the flapping motion, and as beingelastic with a linear deformation mode for the torsionalmotion. Classical steady theory is used to formulate theaerodynamic forces due to blade flapping. For those due to 84-2685blade pitching, a quasi-steady theory is used. The governing Stability Analysis of Externally-Pressurized Gas-equations so obtained contain random turbulence terms inthe coefficients and the inhomogeneous parts. In the second Lubricated Porous Bearings with Journal Rotation.stage of investigation, the analytical procedure is extended to Part 1. Cylindrical Whirlmultibladed systems. D.K Pal and B.C. Majumdar

35

. .......... . ... ...-..........-..--.......- .% ---.....

' ""-* .'

Indian Inst. of Tech., Kharagpur, India, Trib. Intl., 84-268817 (2), pp 83-91 (Apr 1984) 13 figs, 1 table, 7 refs Literature Review of Tilting Pad and Turbulent

Hydrostatic Journal Bearings for Nuclear MainKey Words: Bearings, Journal bearings, Gas bearings, Whirling Coolant Pumps S

R.D. Flack and P.E. AllaireWhirl stability (cylindrical) of externally-pressurized gas- Univ. of Virginia, Charlottesvillt-, VA 22901, Shocklubricated porous journal bearings, considering one-dimen- Vib. Dig., 6 -12 (July 1984) 4 figs, 58 refssional flow through the porous matrix, is analyzed by a first- V"." "7). pp 32

order perturbation method. The effect of supply pressure,feeding parameter, porosity parameter and length-to-diameter Key Words: Bearings, Tilt pad bearings, Hydrostatic bearings,ratio on the stability is also investigated. Cooling systems, Pumps, Reviews

Research regarding tilting-pad and turbulent hydrostaticjournal bearings is reviewed. Included are both theoreticaland experimental work. Both static and dynamic character-istics are considered. The purpose of this paper is to enable

84.2686 a practicing engineer to apply presently available methods

Stability Analysis of Externally-Pressurized Gas- so that he can reliably predict load capacities and dynamicLubricated Porous Bearings with Journal Rotation. coefficients for the bearings.

Part 2. Conical WhirlD.K. Pal and B.C. MajumdarIndian Inst. of Tech., Kharagpur, India, Trib. Inti.,17 (2), pp 92-98 (Apr 1984) 10 figs, 9 refs GEARS

(Also see No 2694)

Key Words: Bearings, Journal bearings, Gas bearings, Whirling

The stability analysis of externally pressurized gas journal 84-2689bearings under conical mode of vibration is obtained usinga first-order perturbation method. The effect of journal Estimating Dynamic Loads on Gear Teethspeed, feeding parameter, supply pressure, porosity param- M.F. Spottseter and length-to-diameter ratio on the conical whir and Northwestern Univ., Evanston, JL, Mach. Des., 56whirl ratio is investigated. (16), pp 84-88 (July 12, 1984) 4 figs

Key Words: Gear teeth, Error analysis

One of the most widely accepted procedures for estimating

84-2687 dynamic loads involves the use of a mass/spring model thatsimulates the effects of manufacturing errors. Errors in toothprofile and tooth spacing are major causes of dynamic loads.

Cylindrical Journal Bearings Factors that influence dynamic forces include operatingC.J. Myers speed, spring constant of meshing gear teeth, and mass of the

Dept. of Applied Mathematical Studies, Univ of rotating years. All of these factors are considered in theLeeds, Leeds LS2 9JT, UK, J. AprI. Mech., Trans. method presented in this article for estimating dynamic

ASME, 51 (2), pp 244-249 (June 1984) 6 figs, 1 tooth loads and spur gears.

table, 17 refs

Key Words: Bearings, Self-excited vibrations, Oil whirlphenomena

84-2690 2An analysis of the self-excited oscillations of a rotor sup- Root Stresses and Bending Fatigue Breakage ofported in fluid film journal bearings is presented. It is shown Planet (;ear Sthat Hopf bifurcation theory may be used to investigate S Oda, K Mira< hika and A Takcdasmall-amplitude periodic solutions of the nonlinear equationsof motion for rotor speeds close to the speed at which the Tottori Univ., 101 Miri OPi Koyama-ho. ToTtosteady-state equilibrium position becomes unstable. A Japan, Bull ,lStIE, 27 l2271,pp 995-1001l (Maynumerical investigation supports the findings of the analytic 1984) 18 figs, 6 ',2fs•work.

31

• .- . . •

S ...- - - - - . . . . . . . . . - . . .

• .. " " , - ..

iili '~ ... .........................'........... ".... " ""J "'" '" "" ".. .. ""

Key Words: Gears, Fatigue tests, Finite element technique nonlinear oscillations. This article describes a method ofcalculating the amplitude of subhermonic nonlinear oscilla-

A root stress analysis by means of the two-dimensional tions; it can be also applied using simple computer tech-finite element method and a bending fatigue test for planet nology. The conditions at which subharmonic oscillationsand idle gears were carried out. The effects of rim thickness can originate are specified.and internal pressure due to a press-fitted bush on the rootstresses and the position of the fatigue crack initiation wereinvestigated.

84-2693Selection of Flexible Couplings for Marine Propulsion

84-2691 Engines with Power Take-Off (Auswahl elasischerLaws of Motion for Non-Vibrating Cranks Kupplungen fur Schiffsdieselmotoren mit Leistungs-

verzweigung)H. Dresig and J. Rossler F. MartinekTchnishe Hchschul, Karl-Marx-Stadt, Sektion Eichenweg 35, A-5302 Henndorf, Germany, MTZMaschinen-Baueemente, Maschinenbautechnik, 33 Motortech. Z., 45 (6), pp 251-252 (June 1984).(5), op 201-204 (1984) 5 figs, 10 refs 1 fig, 1 table, 3 refs(In German) I g erman)

(In German)

Key Words: Cranks, Design techniques, Computer programs, Key Words: Couplings. Flexible couplings, Marine engines,Vibration controlKeWos:CulnsFlxbecplgsMaienies

Torsional vibrations

The maximum operating speeds of many cam gears are ,

restricted by forced vibrations. The speeds can be increased The author describes the process of making a preliminaryselection with or without computer assistance of the flexible - -

to almost resonant speeds of the highest harmonics by meansof a new cam profile design. A computer program, KUSY, couplings to be used in a typical marine propulsion system . - -was developed which synthesizes such cam profiles. Tests incorporating a medium-speed, 4-stroke diesel engine to driveaa developed whroug syteie redutio gear prfies anTxiiresrtsii" . ].

showed that the new profile enabled to raise the maximum a propeller through a reduction gear and an auxiliary alerna-

operating speeds of various machinery. A test with a warped tor through a step-up gear. After such an initial coupling

knitting loom is described, selection on the basis of torque, simple formulae can beused to predict torsional vibrations.

COUPLINGSLINKAGES

84-2692Subharmonic Resonances in Prime Mover Systems 84-2694Incorporating Diesel Engines (Subharmonische Reso- Application of the Analysis of Bi-Parametric Dissipa-nanzen in dieselmotorischen Antriebsanlagen) tive Oscillations to the Crank with Connecting RodV Zoiu Assembly and to the Eccentric GearF'vdlantskr 1316/11, 182 00 Praha 8/CSSR, MTZ I MisicuMtr~rt,-(.h Z. 45 (6), pp 253-255 (June 1984) Pclytechnical Inst., Bucharest, Romania, Rev. Rou-4 fic.", 5 rfs maine Sci. Tech., Mecanique Appl., 29 (2), pp 187-(If, Gr,,n x 192 (Mar'Apr 1984)6 figs, 2 refs

Key Words: Couplings, Flexible couplings, Diesel engines, Key Words: Cranks, Connecting rods, GearsSubharmonic oscillations

On the basis of a previously developed analysis of bi-para-Wherever a flexible shaft coupling with a nonlinear charac- metric dissipative oscillations, a procedure is developed forteristic is connected to a diesel engine to drive machinery, determining the critical stability parameters for two types ofthere is a risk that subharmonic resonances will occur in view usual mechanisms -- a crank with a connecting rod assemblyof the fact that they represent a phenomenon typical of and an eccentric gear.

37

...................... o......

SEALS STRUCTURAL COMPONENTS(Also see No. 2813)

84-2695 STRINGS AND ROPES(Also see No. 2828)

A Study on the Dynamic Characteristics of PumpSeal (1st Report. In Case of Annular Seal withEccentricity) 8Bo Suk Yang, T. lwatsubo, and R. Kawai 842697Graduate School of Science and Tech., Kobe Univ., Nonlinear Generation of Missing Modes on a Vi-

Rokkodai Nada-Ku, Kobe, Japan, Bull. JSME, 27 brating String

(227), pp 1047-1053 (May 1984) 5 figs, 11 refs K.A. Legge and N.H. FletcherUniv. of New England, Armidale 2351, Australia,

Key Words: Seals, Pumps J. Acoust. Soc. Amer., 76 (1), pp 5-12 (July 1984)7 figs, 1 table, 9 refs

The dynamic characteristics of the annular pressure seal

employed in pumps have been theoretically deduced with Key Words: Strings, Vibration analysisconsideration for the effect of eccentricity of rotor. Turbu-lent flow is assumed in both circumferential and axial direc- The nonlinear transfer of energy among modes of differenttions, and effect of inertia of the fluid is considered. An frequencies on a vibrating string is investigated both theoreti- , -

equation for the pressure increment due to journal transla- cally and experimentally. The nonlinearity is associated with 0tion is derived in terms of the effective viscosities, based on the well-known variation of string tension caused by thethe rotational and axial flow Reynolds numbers, vibration modes, but it is essential that at least one of the

end supports has finite mechanical admittance if there isto be any mode coupling. If the nonrigid bridge supporthas zero admittance in a direction parallel to the string, thecoupling is of third order in the mode amplitudes. For amore realistic model in which the string changes directionas it passes over a bridge of finite admittance there areadditional coupling terms of second order.

84-2696Pumping Action of Aligned Smooth Face Seals Dueto Axial Vibrations -- TheoryM. Kaneta, Y. Jonnouchi, and F. Fukahori CKyushu Inst. of Tech., Sensui-cho, Tobata, Kita- CABLESKyushu, 804, Japan, J. Trib., Trans. ASME, 106 (3),pp 344-351 (July 1984) 7 figs, 26 refs

84-2698Key Words: Seals, Periodic excitation Dynamic Phenomena in Ropeways After a Haul

Rope RuptureThis is an analytical study of the mechanism of pumping B Portieraction produced in two axially symmetrical disks. The disks Service de Mecanique, Laboratoire Central des Ponts 7..have a continuous parallel film thickness between them, and et Chaussees, 58 Boulevard Lefebvre, 75732 Paris "- .-

one of them has a recess at the center and is subjected to anormal sinusoidal oscillation. It is found out that whether Cedex 15, France, Earthquake Engrg. Struc. Dynam, .- -

the pumping action is inward or outward depends upon a 12 (4), pp 433-449 (July/Aug 1984) 8 figs, 2 tables,shift of phase between a variation of flow resistance due to a 16 refsperiodic fluctuation of the film thickness between seal facesand a variation of pressure in the recess. Key Words: Cable cars, Cables

An accurate prediction of the dynamical behavior of revers-ible aerial ropeways is presented. A mechanical and numerical .,.."

model is developed in order to check the safety of any such -

- --- ropeway after a haul rope rupture. The model uses very

38

Z-

...................... ~ .... ..... ...... .-.. o

0

simple first-order finite elements, accounting for nonlinear 84-2701effects caused by large displacements. The numerical inte- Propagation of Elastic Waves in a Finite Length Bargration is very efficient, and suits the capabilities of small with a Variable Cross Sectionmicrocomputers; it does not require matrix inversions nor astiffness matrix evaluations. M. Daimaruya, M. Naitoh, and K. Hamada

Muroran Inst. of Tech., 27-1 Mizumoto-cho, Muro-ran, Japan. Bull. JSME, 27 (227), pp 872-878 (May1984) 9 figs 12 refs

Key Words: Bars, Variable cross section, Elastic waves, Wave • "

84-2699 propagation, Impact excitation •

Dynamic Relaxation Analysis of the Non-LinearStatic Response of Pretensioned Cable Roofs The propagation of elastic waves in a finite length bar with a

variable cross section subjected to an arbitrary longitudinal . "w.J. Lewis,M.S. Jones, and K.R. Rushtonimpact loading is investigated. The solution is obtained by

The Polytechnic, Wolverhampton, England, Corn- the application of the Laplace transform. The results of this

puter Struc., 18 (6), pp 989-997 (1984) 9 figs, analysis can be applied only to a thin bar with small changes 45 tables, 15 refs of area and to waves which are long compared to the lateral

dimensions of the bar. Numerical calculations are carried out . e -

for the case of truncated cones, and strain wave historiesKey Words: Cables, Roofs, Dynamic relaxation.-."at various stations along the bar are shown for two kinds -. -"','.1

A summary of various existing methods of cable roof analysis of impact loading.is followed by a detailed description of a dynamic relaxationtechnique that can be applied for the solution of such struc- -tures. Theoretical analysis of static response of pretensioned . .cable networks is presented using a nonlinear energy ap- 84-2702proach. Solutions are obtained by dynamic relaxation, anumerical finite difference technique. Detailed results are . .presented for a pretensioned cable truss. by Approximation of Flow-path Network (Report 1.

Simplified Vibration Model of a Group of Rods) . -

H. Tomita and Y. Sasaki

Toshiba Res. and Dev. Ctr., Toshiba Corp., 1, Komu- -__

kai, Toshiba-cho, Saiwaiku, Kawasaki 210, Japan, • - -

BARS AND RODS Bull. JSME, 27 (227), pp 956-964 (May 1984) 19 - -

figs, 6 refs

Key Words: Rods, Submerged structures, Multibeam systems,84-2700 Fluid-induced excitation, Nuclear fuel elements, Seismic pInvestigation of Stress Wave Propagation through design

Intersecting BarsK.R.Y. Simha and W.L. Fourney A practical approximate method of analysis of a group of - .- - -

Univ. of Maryland College Park, MD 20742, J. rods in a fluid is presented. A simplified model of the rod/ -- --- -fluid system is presented and its applicability to practice is

Appl. Mech., Trans. ASME, 51 (2), pp 345-353 (June verified through theoretical and experimental analysis.

1984) 19 figs, 21 refs

Key Words: Bars, Stress waves, Wave propagation

84-2703A general formulation is presented for the analysis of stresswave propagation through the junction of rectangular bars.The analysis is applied to the case of two bars meeting at by Approximation of Flow-Path Network (Report ILright angles and is used to theoretically predict the passage Continuous Body Model of a Group of Rods)of longitudinal waves through the junction. An experimental H. Tomitainvestigation of the phenomenon, using dynamic photoelas- Toshiba Res. and Dev. Ctr., Toshiba Corp., 1, Komu-ticity is conducted with a high-speed multiple spark gapcamera of the Cranz-Schardin type. Three different geom- k, o -c".uK sk 2 Jp&tries are tested to represent the most common types of Bull. JSME, 27 (227), pp 965-973 (May 1984) 13junctions encountered in practice. figs, 3 refs

39

*......, .',,--.*

Key Words: Rods, Submerged structures, Multibeam to three-dimensional harmonic loads, is presented. Eachsystems, Fluid-induced excitation, Nuclear fuel elements, differential element of the beam has six degrees of freedom;Seismic design i.e., three translations and three rotations. This problem,

in the most general case of response, is associated with aIn this paper a group of rods is treated as if it were a con- partial linear differential system composed of four coupledtinuous body as a whole. A more generalized and widely 3 x 1 vectorial equations. The influences of transverseapplicable model of the rod/fluid system is presented, and shear deformation and rotatory inertia are also included inits validity for practical use is shown through experiment, the analysis.

BEAMS 84-2706

Dynamic Stability of Thin Walled Beams underTraveling Horizontal Follower Load Systems

84-2704 T. AidaStress-Displacement Analysis in Random Coupled Yamaguchi Univ., Ube, Japan, J. Sound Vib., 94Vibration of Bundles of Elastic Rods (3), pp 431-444 (June 8, 1984) 10 figs, 5 refsD. DincaNational Inst. for Scientific and Technical Creation, Key Words: Beams, Moving loadsBdul Pacii 220, 79622, Bucharest, Romania, Rev.Roumaine Sci. Tech., Mecanique Appl., 29 (2), The dynamic elastic instability of a thin walled beam under

pp 147-158 (Mar/Apr 1984) 2 figs, 2 tables, 8 refs traveling horizontal transverse follower load systemscaused by nosing and yawing motions of vehicles; e.g., •magnetically levitated vehicles, is considered. It is shown

Key Words: Beams, Tube arrays, Fluid-induced excitation, that the perturbation equation of motion of this beamBernoulli-Euler method, Rayleigh method, Timoshenko system becomes Hill's equation and a parametricallytheory excited unstable coupled vibration occurs. Furthermore,

the boundary frequency equations of the simple parametricA stress-displacement analysis is developed for a bundle of resonance are obtained by Bolotin's method, and the -parallel, cylindrical, elastic rods, immersed in an ideal stability maps of a simply supported beam are shown, as Sincompressible fluid, using three beam models: the Bernoul- influenced by load mass and damping.li-Euler model, the Rayleigh model which includes therotatory inertia effect, and the Timoshenko one whichincludes both the rotatory inertia effect and the shearforces effect. Numerical results are obtained for two typesof random loads.

84-2707 0Improved Finite-Difference Vibration Analysis ofPretwisted, Tapered BeamsKB. Subrahmanyam and K.R.V. Kaza

84-2705 NASA Lewis Res. Cir., Cleveland, OH, Rept. No.Three-Dimensional Harmonic Vibrations of a Circu- E-1923, NASA-TM-83549, 13 pp (1984)lar Beam N84-16588 0D.E. Panayotounakos and P.S. TheocarisThe National Technical Univ. of Athens, 5, K. Key Words: Beams, Variable cross section, Finite differenceZographou St., Zogarphou, Athens 624, Greece, technique, Vibration analysis

J. AppI. Mech., Trans. ASME, 51 (2), pp 375-382(Jun 1984) 1fi, tabes•AS, 1 pAn improved finite difference procedure based upon second(June 1984) 1 fig, 2 tables, 11 refs order central differences is developed. Several difficulties

encountered in earlier works with fictitious stations that •Key Words: Beams, Natural frequencies, Harmonic excita- arise in using second order central differences, are elimi-tion, Transverse shear deformation effects, Rotatory inertia nated by developing certain recursive relations. The needeffects for forward or backward differences at the beam bound-

aries or other similar procedures is eliminated in the presentAn analytical treatment for the determination of the theory. By using this improved theory, the vibrationnatural frequencies of a circular uniform beam, subjected characteristics of pretwisted and tapered blades are calcu-

40

°%.

- o .-----

lated. Results of the second order theory are compared 84-2710with published theoretical and experimental results and Vibrations of Beam with an Absorber Consisti ofare found to be in good agreement. a Viscoelastic Solid and a Bea,

H. Yamaguchi and H. Saito 0Tohoku Univ., Sendal, Japan, Earthquake Engrg.Struc. Dynam., 12 (4), pp 467-479 (July/Aug 1984)10 figs, 7 refs

84-2708Bending of Beams Subjected to Transverse Impacts Key Words: Beams, Dynamic vibration absorption (equip-R.L. Woodward ment) 0Materials Res. Labs., Ascot Vale, Australia, Rept.No. MR L-R-886, 24 pp (Apr 1983) This paper considers the response of a beam with a dynamic

vibration absorber, which consists of a viscoelastic solidAD-A.37 840 and a double-cantilever viscoelastic beam, attached to the

center of the main beam. The ends of the main beam areKey Words: Beams, Impact excitation, Computer programs built in and excited sinusoidally by the base motion. The

transfer matrix method is used in the analysis. The displace-Transverse projectile impacts on the ends of free-free beams ment transmissibility; i.e., the ratio of the displacement atof circular cross section produced evidence of hinges in the the center of the main beam to that of the base is investi-beams and strain distributions which could be used for gated in the numerical example.comparisons with a rigid-plastic approach to the dynamicresponse of structures and for comparisons with a finiteelement computer code solution. The rigid-plastic approachdescribes the mechanism of bending and hinge developmentand motion correctly but the simplifications inherent in u -

the model prevent it from accurately predicting the detail. 84-2711The computer code EPIC-2 gives extremely good simula- Shear Strength of Reinforced Concrete Beam-tions of the problem. Colunmn Joints under Low Reversed Cyclic Loading

Research Group on Frame Joints, J. Bldg. Structure,.AM(6), pp 1-17 (1983)CSTA 624-83.132

84-2709 Key Words: Joints (junctions), Beam-columns, ReinforcedBlade Excitation Due to Gyroscopic Forces concrete, Cyclic loading, Seismic design

* F. Sisto, A.T. Chang, and M. SutcuDept. of Mech. Engrg., Stevens Inst. of Tech., Ro- Thirty specimens of beam-column joints in reinforced

concrete frames under low reversed cyclic loading cases. tordynamic Problems in Power Plants, Intl. Conf., are tested. The investigation includes deformability, shear

Intl. Fed. for Theory of Machines and Mechanisms, strength, failure mechanism in joint core region and their*Tech. Comm. for Rotor Dynamics, Sept 28 - Oct 1, effecting factors, such as the confinement of concrete by

1982, Rome. Italy, pp 279-284, 5 figs, 5 refs orthogonally connected beams, axial stress ratio, shearstress ratio, stirrup ratio and slip of beam bars. A seismicdesign method for calculating shear resisting values and

Key Words: Beams, Cantilever beams, Blades, Rotor blades recommendations of beam-column joint core are presented.(turbomachinery), Mountings, Whirling, Seismic excitation S

A turboblade mounted on a spinning and precessing rotoris modeled as a uniform cantilever beam (with bending inone plane) with the objective of efficiently conducting PANELS . "'"parametric studies. The effect that is considered is the . -.response due to a harmonic variation with time of theprecessional rate such as is attributable to whirling, seismicground motion, or other periodic disturbances acting upon 84-2712mounts of the axial turbomachine. The results are pre- hfluence of Geometric Imperfections and In.Planesented in the form of (self-excited) instability criteria. Il c f o t-e-ndn.

The effects of viscous damping and negative damping (rate Constraints on Nonlinear Vibrations of Simplyof growth) of the unstable vibration are also studied for the Supported Cylindrical Panelscase of a constant (nonharmonic) precession rate. D. Hui -. . --

41

IJ.... .. ... . . ... . . .. .. . . . .

.% .,-- .. . . . . . .. '°. .................... Oo° ,- , ,1 ,' , • .... .. 'o •,°o.. '..•".. ' %- , • . • , . 1.. •••°•

-7-7 77 7

%

%

Ohio State Univ., Columbus, OH 43210, J. Appl. different boundary conditions along the straight edges,

Mech., Trans. ASME, 51 (2), pp 383-390 (Jun~e including elastic restraints. In the analysis linear, "smeared"1984.6 fgs,"2 r~f stiffener, Flgge type theory is used. A computer program-1984) 6 figs. 22 refs VIBUPAL has been developed.

Key Words: Panels, Cylinders, Vibration analysis, Large

amplitudes - . ,

This paper deals with the effects of initial geometric imper-

fections on large-amplitude vibrations of cylindrical panels 84-2715 " '-

simply supported along all four edges. In-plane movable Free Vibration of Noncircular Cylindrical Pandsand in-plane immovable boundary. conditions are consid- with Simply Supported Curved Edges . ,ered for each pair of parallel edges. Depending on whether V. K. Koumousis and A.E. Armenakasthe number of axial and circumferential half waves are

odd or even, the presence of geometric imperfections National Technical Univ., Athens, Greece, ASCE J.(taken to be of the same shape as the vibration mode) of Engrg. Mech., 110 (5), pp 810-827 (May 1984)the order of the shell thickness may significantly raise or 3 figs, 13 refs.lower the linear vibration frequencies.

Key Words: Panels, Cylindrical plates, Donnell theory,Flugges shell theory

A method is presented, employing Flugge and Donnell

84-2713 type theories, for obtaining the dynamic characteristics ofcylindrical panels of noncircular cross section, having

Free Vibrations of Oval Cylindrical Panels simply supported curved edges and any boundary condi-

V. K. Koumousis and A.E. Armenakas tions along their straight edges. Special formulas are derived

Consulting Engr., Athens, Greece, ASCE J. Engrg. for symmetric and doubly-symmetric cylindrical panels. "

Mech., 110 (7), pp 1107-1123 (July 1984) 7 figs,3 tables, 10 refs

Key Words: Panels, Cylindrical plates, Natural frequencies, PLATESMode shapes, Geometric effects, Flugges shell theory, (Also see Nos. 2734, 2763, 2764)

Donnel theory

The dynamic characteristics of oval cylindrical panels, withsimply supported curved edges and various boundary condi- 84-2716tions along the straight edges, are established on the basis Criteria for Placing the Points of Measurement toof the Flugge or Donnell type theories. Numerical results Obtain the Vibrating Energy of Plates (Critres deare presented and the effect of the ovality as well as othergeometric parameters of the panels are investigated. maiflage pour Ia mesure d'inergie vibratoire des . -

plaques)P. Millot, J.L. Guyader, C. Boisson, and C. Lesueur "

Laboratoire des Sciences de I'Habitat de I'Ecole

Nationale des Travaux Publics de I'Etat, 69120

84-2714 Vaulx en Velin, France, Acustica, 55 (2), pp 101-

Vibrations of Axially Loaded Stiffened Cylindrical 112 (May 1984) 16 figs, 13 refs

Panda with Elastic Restraints (In French)

J. Singer, 0. Rand, and A. RosenDept. of Aeronautical Engrg., Technion-srael Inst. Key Words: Plates, Vibration measurement, Measurement

of Tech., Haifa, Israel, J. Sound Vib., 93 (3), pp techniques397-408 (Apr 8, 1984) 3 figs, 2 tables, 33 refs The aim of this paper is to help to determine criteria for 9

placing the points of measurement on a plate excited by a .

Key Words: Panels, Cylinders, Stiffened structures, Vi- wide-band random noise force, in order to obtain its

bration analysis, Computer programs vibrating energy. The main parameters which affect the , - -

error of method associated with a plate are the number ofA method has been developed for analysis of the vibration modes within the bandwidth of excitation, the type of

and buckling of preloaded stiffened cylindrical panels with distribution, and the number of points. The results de-

42

...------.---. ---------------------. .. . . - - -.% -- ---------- ------ ---- ------- --- --------------,.., :..;..:..:.: ~~~~~~~~~~~. ...... ;.,:,.;-.. -.... -.......... ,.. . . ...........-...., - .. .'.....:.

scribe two plates which are typical of the problems found in Serrano 144, Madrid-6, Spain, J. Sound Vib., 94 (2),industrial and architectural acoustics. pp 217-222 (May 22, 1984) 2 figs, 2 tables, 9 refs

Key Words: Plates, Circular plates, Resonant frequencies,Underwater structures

84-2717 The studies on the increase of inertia, and the correspondingVibration of Four-Sides Supported One-Way Continu- reduction in frequency, of plates when vibrating in water

have been confined mainly to the lower modes of vibrationots Rectangular Orthotropic Elastic Plates with and for plate radii much less than a wavelength of sound in

Added Masses the fluid. In this paper, a method is presented which, subject

Zhang Wohua and Xu Zhixin to certain approximations, permits the evaluation of the

J. of Tung-Chi Univ., (2), pp 26-40 (1983) influence of the fluid on the frequency of any vibrationCSTA No. 624-83.109 mode whose deflection curve in a vacuum is known. The

method has been applied to water-loaded circular plates

vibrating in their axisymmetric modes.Key Words: Plates, Rectangular plates, Natural frequencies,Mode shapes, Added mass effects, Harmonic excitation

Analytic solutions for the natural frequency and mode of

a one-way continuous four-sides supported rectangular 84-2720orthotropic elastic plate with added masses and the steady Nonlinear Transient Response of Isotropic Circularresponse of the plate with complex damping under harmonic Patexcitation are presented. Pae

P.C. Dumir, Y. Nath, and M.L. GandhiIndian Inst. of Tech., New Delhi-1 10016, India, Corn- Sputer Struc., 18 (6), pp 1009-1018 (1984) 12 figs,1 table, 9 refs

84-2718Stability and Vibrations of Geometrically Nonlinear Key Words: Plates, Circular plates, Transient response, Time

Cylindrically Orthotropic Circular Plates dependent excitation, Nonlinear theories

D. Shilkrut The nonlinear transient response for stresses and deflectionThe Pearlstone Ctr. for Aeronautical Engrg. Studies, of thin linear elastic circular plates subjected to different

Ben-Gurion Univ. of the Negev, Beer Sheva, Israel, time-dependent loads is investigated. Space-wise discretiza-J. Appl, Mech., Trans. ASME, 51 (2), pp 354-360 tion is done using the collocation method with the zeros of a

(June 1984) 7 figs, 13 refs Chebyshev polynomial as collocation points. Newmark-1.scheme is used for time-marching. Time and space-wise .

convergence studies are carried out. Both the linear andKey Words: Plates, Circular plates, Low frequencies, Vibra- nonlinear transient response of clamped and simply sup-tion analysis ported circular plates under six different sets of transient

loads are obtained.The stability analysis of axisymmetrical equilibrium states ofgeometrically nonlinear, orthotropic, circular plates that aredeformed by multiparameter loading, including thermalinfluence, is presented. The dynamic method (method ofsmall vibrations) is used to accomplish this purpose. The 84-2721behavior of the plate in different cases is revealed. Dynanic Response of a Prestressed. Orthotropic

Thick Plate Strip to a Moving Line LoadS. ChonanThe Univ. of British Columbia, 2324 Main Mall,-- -.Vancouver, Canada, J. Sound Vib., 93 (3), pp 427-

842719438 (Apr 8, 1984) 6 figs, 10 refsOn the Resonance Frequencies of Water-Loaded 4 ( 8 4 fs rCircular Plates

Key Words: Strips, Plates, Moving loadsF.M. de Espinosa and J.A. GailegooJuarez .... ' .=

Laboratorio de Ultrasonidos. Instituto de Acustica, A study of the steady state response of an orthotropic plateConsejo Superior de Investigaciones Cientificas, strip to a moving line load is presented. The plate is of

43.,. *

. . . . . . . . . . .• ...,....-....., .,....,:..,........,......,............,. .... ,.....,.. ,.:..,.,...,,...-.... ... . : -. .

S,..-.".". :-, -''-"..,,..,.. .". ..-.-..;.,.,,.,.'.,..,.,,..........,

infinite length and subjected to initial-in-plane stresses Application of these ideas to acoustic emission source characparallel and perpendicular to the edges. The solution is terization is discussed.obtained on the basis of a thick plate theory which takesinto account the effects of shear deformation and rotatoryinertia. The critical speed of the load which brings about aresonance effect in the system is determined. Further, the Z

banding moment in the plate is calculated for several valuesof the load speed and the initial stress parameters and shown 84-2724graphically as a function of the space variable moving with Non-Linear Transient Response of Flat Plate to Air - .the load. Shock Wave

J.N. Lee ONaval Postgraduate School, Monterey, CA, 121 pp(Dec 1983)AD-A140 491

84-2722Free Vibration Analysis of Rectangular Cantilever Key Words: Plates, Transient response, Shock waves, Com-

Plates with Symmetrically Distributed Point Sup- puter programs

ports Along the Edges The nonlinear elasto-plastic response of a clamped flat plate

H.T. Saliba to a typical air shock wave is investigated. The nonlinearUniv. of Ottawa, Ottawa, Ontario K1N 6N5, Canada, effects of the plate responses due to the material and geo-J. Sound Vib., 9_4 (3), pp 381-395 (June 8, 1984) metric nonlinearity are studied. The necessity of the modi-- .4

6 figs, 3 tables, 6 refs fication of old armored vehicles is reviewed and the NAS- a ,

TRAN code is employed. The theoretical background of the -. 0nonlinear transient analysis is described, a step by step pro-

Key Words: Plates, Cantilever plates, Free vibration, Method cedure of analyzing the dynamic load problem by shock-. .of superposition wave using NASTRAN code is developed, and sensitivity

analyses are performed.Through exploitation of the superposition method, a highly

accurate analytical solution is provided for the free vibrationproblem of rectangular cantilever plates with symmetricallydistributed point supports along the free edges. Tables of .eigenvalues for a wide range of plate aspect ratio are pro- SHELLSvided. (Also see No. 2737)

84-2725Vibration and Damping Analysis of a MultilayeredCylindrical Shell, Part 1: Theoretical Analysis

842723 N. Alam and N.T. AsnaniDiffuse Waves in Finite Plates Aligarh Muslim Univ., Aligarh, India, AIAA J., 22 (6),R.L. Weaver pp 803-810 (June 1984) 1 fig, 11 refsUniv. of Illinois at Urbana-Champaign, Urbana, IL61801, J. Sound Vib., 94 (3), pp 319-335 (June 8, Key Words: Shells, Cylindrical shells, Layered materials,1984) 4 figs, 17 refs Vibration analysis, Layered damping .

Key Words: Plates, Power spectral density, Acoustic emis- The governing equations of motion for the nonaxisymmetricsion, Sound waves, Wave propagation and axisymmetric variational of a general multilayered

cylindrical shell having an arbitrary number of orthotropicThe diffuse field assumption of room acoustics is shown to material layers are derived using variational principles. Thelead to a relationship between the total spectral energy refined analysis considers bending, extension, and sheardensity of a linear elastic wave disturbance in a finite plate deformations in all layers of a multilayered cylindrical shell,and the power density as observed on the surface. For times including rotary and longitudinal translatory as well aslong compared with acoustic transit times across the length transverse inertias. The solution for a radially simply sup-of the plate, the diffuse field assumption allows the theorist ported shell is obtained and the procedure for determiningto neglect the details of edge reflections under the assump- the damping effectiveness in terms of the system loss factortion that an eventual steady state energy balance is main- for all families of the modes of vibration in a multilayeredtained among the different branches of wave propagation. shell with elastic and viscoelastic layers is reported.

44

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84-2726 tronique et d'Automatique, groupe "Ultrasons,"Dynamic Instability of a Circular Cylindrical Shell U.E.R.S.T., Place Robert Schuman, 76610 Le Havre,Subjected to a Simultaneous Action of Compressive Acustica, 55 (2), pp 69-85 (May 1984) 25 figs, 39 -

Forces and Temperature Field, Both Periodical in ref s 0Time (in French)C.V. MassalasUniv. of Ioannina, Greece. Rev. Roumaine Sci. Tech., Key Words: Shells, Cylindrical shells, Submerged structures,

Mecanique Appl., 29 (2), pp 159-171 (Mar/Apr 1984) Underwater sound, Sound waves, Wave scattering .,

7 figs, 6 refs The Resonance Isolation and Identification Method (RIIM)

allows a direct verification of the Resonance ScatteringKey Words: Shells, Cylindrical shells, Dynamic stability, Theory (RST). The resonance spectra (recording of theAxial excitation, Temperature effects backscattered echo versus the frequency just after the exci-

tation) of aluminum elastic cylinders and cylindrical shellsThe problem of the dynamic stability of a clamped cylindri- insonified by a plane acoustic wave are quasi-linear. Reso-cal shell subjected to the simultaneous action of longitudinal nances result from standing waves on the circumference ofcompressive forces and temperature field, both periodical the cylinder. These standing waves originate from surfacein time, in the case of the temperature-dependent modulus waves which propagate around it in two opposite directions. Sof elasticity, is formulated on the basis of Donnell's linear The mode number also is determined by experimentation . -. "theory and Galerkin's method. Numerical results for the (RIIM).vibration frequencies, buckling load and the boundaries ofthe principal instability regions are presented and the influ-ence of the temperature field on them is extensively dis-cussed.

84-2729 .Non-Stationary Response of Non-Linear Liquid Mo-tion in a Cylindrical Tank Subjected to Random BaseExcitation

84-2727 M. Sakata, K. Kimura, and M. UtsumiNatural Frequencies of Fluid-Coupled Circular Tokyo Inst. of Tech., Meguro-ku, Tokyo 152, Japan,Cylindrical Shells (Eigenschwingungen von Durch J. Sound Vib., 94 (3), pp 351-363 (June 8, 1984) 6 -

Fluwigkeit Gekoppelten Kreiszylinderschalen) figs, 1 table, 11 refsNguyen-Xuan-HungPolytechnic Institute of Hanoi, Vietnam, Rev. Rou- Key Words: Cylindrical shells, Tanks (containers), Fluid- .-

maine Sci. Tech., Mecanique Appl., 29 (1), pp 31-49 filled containers, Storage tanks, Base excitation, Random - . - . -_

(Jan/Feb 1984) 19 figs, 4 refs excitation, Seismic excitation

(in German)The nonstationery response of nonlinear liquid motion in acylindrical tank subjected to lateral earthquake excitation is

Key Words: Shells, Cylindrical shells, Fluid-filled containers, investigated by modeling the earthquake excitation as anSubmerged structures, Natural frequencies amplitude modulated non-white random process having a -.. .'

dominant frequency. The nonstationary standard deviation " - - - " "Natural frequencies of two fluid-coupled circular cylindrical and mean responses of the liquid surface displacement areshells are investigated. Special cases, namely, vibration of calculated and it is shown that the linear liquid motionfluid-filled and submerged shells, are compared with experi- theory is not necessarily sufficient to evaluate the safety ofmental results. tanks, since the nonlinear analysis leads to a positive value

of the mean response for the liquid surface displacement -. -,,,

at the tank wall, while the linear theory predicts zero mean .,,.,.,,.

,ponse.

84-2728•

Acoustic Scattering from Air-Filled Cylindrical Shells 4

in Water (Diffusion d'une onde ultrasonore par des 84-2730tube@ remplis d'air immerges ans I'eau) Dynamic Behavior of Liquid Free Surface in a Cylin- . - "G Maze, J. Ripoche, A De-em, and J. L. Rousselot drical Container Subject to Vertical Vibration, .

Universite de Haute Normandie, Laboratoire d'Elec- H. Hashimoto and S. Sudo .

45

Zp

-.------------------

Inst. of High Speed Mechanics, Tohoku Univ., Sendai, 84-2733Japan, Bull. JSME, 27 (227), pp 923-930 (May 1984) Thin Shell Theories and Acoustic Wave Scattering by17 figs, 15refs Infinitely Long Cylindrical Shells of Arbitrary Cros 1w -

SectionKey Words: Cylindrical shells, Fluid-filled containers, Slosh- S. Baskar, V.V. Varadan, and V.K. Varadaning Ohio State Univ., Columbus, OH 43210, J. Acoust., - -

Soc. Amer., 75 (6), pp 1673-1679 (June 1984) 8 ".-A series of experimental studies on the dynamic behavior of fsthe gas-liquid interface are reported. These studies are con- fig- 1tale,12-e"cerned with the liquid sloshing phenomena induced byvertical vibration of a cylindrical container. The disappear- Key Words: Shells, Sound waves, Wave scattering 0ance of the harmonic surface wave motion, the formationof 1/2-subharmonic motion, the mechanism of the surface The scattering of acoustic waves by an infinitely long cylin-disintegration and the behavior of spray-excited low fre- drical shell immersed in a fluid is analyzed. A new approachquency waves are investigted. has been proposed using thin shell theory incorporating the

impedance of the shell in the T-matrix formulation. Numeri-cal results are presented for the farfield backscatteringamplitude as a function of frequency. Calculations were .

made for infinitely long circular and elliptic cylindrical shells

84-2731 immersed in water for various shell thicknesses for waves

Axisymmetric Vibrations of Thick Shells of Revolu- incident at an arbitrary angle in the plane normal to the

tion axis of the cylinder. The impedance resulting from the use ofvarious shell theory approximations for circular cylindrical -

K. Suzuki, T Kosawada, and S. Takahashi shells is presented. -

Yamagata Univ.. Yonezawa, Japan, Bull. JSME,

27 (227), pp 980-986 (May 1984) 9 figs, 10 refs

Key Words: Shells, Shells of revolution, Axisymmetric vi-brations, Natural frequencies, Mode shapes, Transverseshear deformation effects, Rotatory inertia effects

84-2734Using an improved thick shell theory, the axisymmetric Some Problems of Stability of Propagation of Non-vibrations of barrel-like shells of revolution are analyzed. Linear Waves in Shells and PlatesThe equations of vibration are solved exactly by a series A.G Bagdoev and L.A. Movsisiansolution. Natural frequencies and mode shapes of symmetricshells of revolution with both ends clamped and with both Inst. of Mechanics of the Academy of Sciences ofends simply supported are obtained. Armenian S.S.R., Yerevan, U.S.S.R., Intl. J. Nonlin.

Mech., 19 (3), pp 245-253 (1984) 1 fig, 12 refs

Key Words: Shells, Plates, Fluid-induced excitation, Stability

84-2 732Equations of modulations, taking into account the second " - " - -

Nonlinear Interactions in Resonance Response of order derivatives of amplitude and stability conditions, are

Thin Shells obtained. The general results are applied to the stabilityA. Tesar problems of propagation of quasimonochromatic waves in

Inst. of Structures and Architecture, Slovak Academy plates, shells, plates in contact with fluid, shells containing 0of Sciences, Bratislava, Czechoslovakia, Computer fluid, plate in magnetic field, tree-layered plate and visco-

Struc., 18 (6), pp 1047-1055 (1984) 10 figs, 9 refs elastic plate.

Key Words: Shells, Resonant response, Nonlinear theories

The transfer matrix analysis of nonlinear dynamic responseof stiffened thin shells in resonance regions of vibration arepresented. Considered is the interaction of geometric and 84-2735physical nonlinearities. Direct time integration procedures Exact Solutions of Moderately Thick Laminatedto solve the equations of motion are used. Corresponding Shllincremental transfer matrices are formulated in an updated Shells

Lagrangian reference mesh. J.N. Reddy

46

.. . . . . . . ...... . . , °..,,.•.••-.-.-o- - - -. -. ¢..oi,.j- . . .% . "-"."% , .', "°',o/•o-°'Z~, % ." . °"", *.,.''=,.,'° *.., - . ..*o.•'o'% ".='' **,p* ,'Z ." : *.' . -°*. '..-i" -°." 'Z •.' .', ." . ," . .

Virginia Polytechnic Inst. and State Univ., Blacks- Key Words: Tubes, Cylindrical shells, Shells, Sound waves,burg, VA 24061, ASCE J. Engrg. Mech., 110 (5), Wave scatteringpp 794-809 (May 1984) 2 figs, 7 tables, 28 refs

A study of the resonance scattering undergone by an air-filled hollow elastic cylinder excited by an incident plane

Key Words: Shells, Layered materials, Fundamental fre- acoustic wave is presented. The boundary value problem isquency constructed, its classical solution, based on the resonance -- . -

scattering theory is obtained, and a variety of useful com- -- -An extension of the Sanders shell theory for doubly curved puted results are generated.shells to a shear deformation theory of laminated shells ispresented. The theory accounts for transverse shear strainsand rotation about the normal to the shell midsurface. Exact •

solutions of the equations are 15resented for simply sup-ported, doubly curved, cross-ply laminated shells undersinusoidal, uniformly distributed, and concentrated pointload at the center. Fundamental frequencies of cross-ply 84-2738laminated shells are also presented. kIteractions Between Self and Parametrically Excited ._'-

Motions in Articulated Tubes •A.K. BajajPurdue Univ., West Lafayette, IN 47907, J. AppI.

84-2736 Mech., Trans. ASME, 51 (2), pp 423-429 (June 1984)Complex Response Analysis of Shells of Revolution 4 figs, 22 refsIncluding Uniform Base Translation and RockingBor-Jen Lee and P. L. Gould Key Words: Tubes, Fluid-filled containers, Self-excited vi-. SWashington Univ., St. Louis, MO, Earthquake Engrg. brations, Parametric vibration

Struc. Dynam., 12 (4), pp 507-519 (July/Aug 1984) The nonlinear dynamics of a two-segment articulated tubes -.-.-

16 figs, 1 table, 8 refs system conveying a fluid is studied when the flow is harmoni- . . "

cally perturbed. The mean value of the flow rate is near itsKey Words: Shells, Interaction: soil-structure, Substructuring critical value when the downward vertical position getsmethods unstable and undergoes Hopf bifurcation into periodic solu-

tions. The harmonic perturbations are assumed to be inA complex response algorithm for the dynamic analysis of parametric resonance with the linearized system. The method .

axisymmetric thin shells supported on an interactive founda- of Alternate Problems is used to obtain the small nonlin- ,""--tion is developed. The substructure deletion method is em- earized subharmonic solutions of the system.ployed through the utilization of a dynamic boundary systemat the contact area between the superstructure and the sub-structure. A new mathematical formulation in conjunctionwith the shell behavior is developed to deal with rigid bodymotions due to the negation of the fixed base assumption.Four foundation conditions are considered to examine theeffect of base flexibility on the seismic response of cooling 84-2739towers. Guidelines for the Instability Flow Velocity of Tube

Arrays in CrosaflowS.S. ChenComponents Tech. Div., Argonne National Lab.,

PIPES AND TUBES Argonne, I L 60439, J. Sound Vib., 93 (3), pp 439-455 (Apr 8, 1984) 6 figs, 6 tables, 36 refs

84-2737 Key Words: Tube arrays, Fluid-induced excitationAcoustic Spectrogram and Complex-Frequency Poles Sof a Resonantly Excited Elastic Tube Fluid flowing across a tuba array can cause dynamic insta-

G.C. Gaunaurd and D. Brill bility. Once large-amplitude oscillations occur, severe damagemay result in a short time. Such instability must be avoided

Naval Surface Weapons Ctr., R-43, White Oak, Silver in design. This paper presents a brief review of differentSpring, MD 20910, J. Acoust. Soc. Amer., 75 (6), instability models and stability maps developed based on a

pp 1680-1693 (June 1984) 19 figs, 30 refs semi-analytical model and published experimental data.

47

-" ... -..-. --

_ _ _ _ _ __ _ _ _

84-2740 NASA Langley Res. Ctr., Hampton, VA, AIAA J.,The Effect of Tube Mass on the Flow Induced 22 (6), pp 781-785 (June 1984) 11 figs, 1 table,Response of Various Tube Arrays in Water 9 refs D.S. Weaver and H.C. YeungMcMaster Univ., Hamilton, Ontario, Canada, J. Key Words: Ducts, Acoustic linings, Sound waves, Wave -.--.-

Sound Vib., 93 (3), pp 409-425 (Apr 8, 1984) 12 radiationfigs, 3 tables, 17 refs The radiation of sound from an asymmetrically lined duct is

experimentally studied for various hard-walled standing modeKey Words: Tubes, Heat exchangers, Fluid-induced excita- sources. Measurements were made of the directivity of thetion, Geometric effects radiated field and amplitude reflection coefficients in the

hard-walled source section. These measurements are com-Experiments were run in a water tunnel to study the effect pared with baseline hard-wall and uniformly lined duct .

of mass ratio on the cross-flow induced response of heat data. The dependence of these characteristics on modeexchanger tube arrays with a pitch ratio of 1.5. All four number and angular location of the source is investigated.standard tube array geometries were examined and three A comparison between previous theoretical calculations anddifferent tube masses were used for each geometry. Response the experimentally measured results is made.curves and frequency data are presented including Strouhal 0numbers, vorticity resonance amplitudes and fluidelasticstability thresholds.

84-2743 .084-2741 Design and Flight Test of a Kevlar Acoustic LinerSeismic Performance Evaluation of Lifelines H. C. Lester, J.S. Preisser, and T. L. Parrott . . -

L.R.L. Wang and Y.H. Yeh NASA Langley Res. Ctr., Hampton, VA. J. Aircraft,- Univ. of Oklahoma, Norman, OK, Rept. No. LEE- 21 (7), pp 491-497 (July 1984) 9 figs, 5 tables, 14

005, NSF/CEE-82112, 122 pp (Nov 1982) refsPB84-184175

Key Words: Ducts, Acoustic linings, Noise reduction, Turbo- .Key Words: Lifeline systems, Seismic response fan engines, Turbofans

Experimental methods suitable for either overall or pars- The design, fabrication, and flight evaluation of a Kevlar -metric seismic performance evaluation of lifeline systems acoustic liner for a JT15D turbofan engine are summarized. -

* are summarized. Ground motion characteristics, called the The liner was designed to suppress by a measurable amountmost influential parameter of all lifeline systems, are exam- a dominant BPF tone. This tone or spinning mode was SSined. Active field testing methods, passive field testing produced for research purposes by installing 41 circumferen-methods, and laboratory testing methods of below-ground tially-distributed small-diameter rods upstream of the 28 fan -systems are described. Parameters of importance to buried blades. Duct liner attenuations calculated by a finite-element ...-.lifeline systems, such as lateral and longitudinal soil resis- procedure are compared to far-field power (insertion) lossestance characteristics and joint resistant behavior, are dis- deduced from flight data. The finite-element program mod- - . .cussed. For above-ground lifeline systems, seismic observa- eled the variable geometry of the JT15D inlet and used ations, field testings, and model testing of bridges, above- uniform flow with a boundary layer roll-off to model the 0

-ground pipelines, and communication lifelines are presented. inlet flowfield.

DUCTS

84-2744 .% 84-2742 Geometry and Static Flow Effects on Acoustic Radi-

Experiments on Sound Radiation from a Duct with a ation from DuctsCircumferentially Varying Liner R.J. SilcoxC.R. Fuller and R.J. Silcox NASA Langley Res. Ctr., Hampton, VA, AIAA J.,

48

.. . . . .............. .

'e- cm

11 .i .7 _w

•

22 (8), pp 1087-1093 (Aug 1984) 11 figs, 3 tables, Imperial Valley earthquake. Response of the structure10 refs during the earthquake was recorded by 13 strong-motion

accelerographs. Vertical-load-carrying and lateral-force-re-Key Words: Ducts, Sound waves, Wave propagation sisting systems are described, and corrected acceleration

records, calculated base shear and moment waveforms,response spectra, and Fourier amplitude spectra are pre-

An experimental study of the effects of geometry, flow, sented.frequency, and source structure on the radiation and reflec-tion of sound from duct inlets has been conducted. Thiswork extends a previous study by comparing two inlet shapestypical of static and flight testing and by considering higher- - -- -

order radial modes. Measurements of the internal and radi-ated acoustic fields are presented in terms of modal reflec- DYNAMIC ENVIRONMENT - 0tion coefficients and absolute radiated pressure directivity. DYN.MI E

ACOUSTIC EXCITATION -.

84-2745 (Also see Nos. 2664. 2665. 2737. 2764)

A Study of Active Control of Noise in DuctsJ. Tichy, G.E. Warnaka, and L.A. PoolePennsylvania State Univ., State College, PA 16801, 84-2747J. Vib., Acoust., Stress, Rel. Des., Trans. ASME, Noise Reduction in Sheet Metal Manufacture (L-rm-106 (3), pp 399-404 (July 1984) 4 figs, 2 tables, minderung bei der Blechverarbeitung)9 refs P. Grund •

VDI-Z., 126 (10), pp 337-344 (May 1984) 12 figs,Key Words: Noise reduction, Ducts, Active control 9 refs

(In German)Some new theoretical results on the development of a one-dimensional noise cancellation system in a duct are pre- Key Words: Noise reduction, Industrial facilitiessented. There are several parts of the actual system design: .o

the generation of the cancelling sound field and the place- A systematic procedure for the reduction of noise in thement of the feedback microphone, the design of the adaptive sheet metal industry is described. Means for the determine-

filter and the considerations including the system stability. tion of main noise sources are listed and the prevailing onesThis paper concentrates on the analysis of the sound field ise ta n tyr ssdIdto inin sheet metal industry are discussed. In addition, silent i. " .. .in a direct relationship with the feedback microphone posi- production means such as silent hammers and grindingtion. wheels, and alternative production methods to replace

noisy manufacturing procedures are presented.

BUILDING COMPONENTS

84-2748A Numerical Method for Ocean-Acoustic Normal

84-2746 ~ModesAn Experimental/Analytical Study of the Dynamic M Pcrti and E.L. ReissResponse of Staggered Structural Wall Systems Ncth,-stnrn Univ. Evanston, IL60201, J. Acoust.

Ph.D. Thesis, Univ. of Illinois at Urbana-Champaiqn, 11 tales, 13 refs339 pp (1983)

DA8409974 Key Words Sound waves, Wave propagation, Oceans, Normalmodes, Finite difference technique

Key Words: Walls, Earthquake response, Experimental data

The method of normal modes is frequently used to solveThe Imperial County Services Building of El Centro, Cab- acoustic Propagation problems in stratified oceans. Thefornia sustairied severe damage during the 15 October 1979 propagation numbers for the modes are the eigenvalues of the

49

. . .. . . . .°.

boundary value problem to determine the depth dependent tures of an arbitrary shape, the aperture impulse response isnormal modes. Errors in the numerical determination of also of an analytical form, directly involving the aperturethese eigenvalues appear as phase shifts in the range depen- contour line.. .

dence of the acoustic field. Such errors can severely degrade 0the accuracy of the normal mode representation, particularlyat long ranges. A fast finite difference method to accuratelydetermine these propagation numbers and the correspondingnormal modes is presented. 84-2751

Non-Linear Self-Excited Acoustic Oscillations inCavitiesJ.J. Keller

84-2749 Brown Boveri Res. Centre, CH-5405, Baden, Switzer-84-2749land, J. Sound Vib., 94 (3), pp 397-409 (June 8,

The First Order Non-Linear Sound Field of a Two- 194)7 ig.• r", - " ~~1984) 7 figs, 8 refs"-".-.-Frequency Spherical Source

" ~S.M. Baxter ... -4SM. ofxtr SKey Words: Sound waves, Acoustic excitation, Self-excited

Inst. of Sound and Vib. Res., Univ. of Southampton, vibrations, CavitiesSouthampton S09 5NH, UK, J. Sound Vib., 94 (3),pp 337-349 (June 8, 1984) 31 refs Nonlinear acoustic oscillations in covered cavities, excited

by a jet which is wall-bounded on one side, are discussedon the basis of a second-order theory. With the shear layerat the free edge of the jet considered as a simple (stable)

Nonlinear effects in the sound field of a two-frequency vortex sheet the matching conditions between the acoustic

wave fields in the jet and the cavity are introduced in aomnidirectional spherical source are discussed. The sourceis imbedded in an infinite uniform medium. Absorption general second-order equation for wave fields in rectangularand dispersion in the medium have an arbitrary dependence resonators. This procedure leads to a second-order wave

equtio containing an time lag.u Soluion are computedy withdncon frequency. The first order nonlinear correction to the equation containing a time lag. Solutions are computed with

pressure field is computed by using Westervelt's virtual the help of an evolution scheme and compared with experi-

sources approach. Advantages of the present solution are ments.

its simplicity of form, its applicability to broad parameter 0ranges, and the ease with which its qualitative behavior atlarge distances from the source can be studied.

84-2752Wave Models of Turbulent Fow over CompliantSurfaces

84-2750 J.E. Ffowcs-Williams AiAcoustic Diffraction Analysis by the Impulse Re- Cambridge Univ., Cambridge, UK, J. Vib., Acoust.,

sponse Method: A Line Impulse Response Approach Stress, Rel. Des., Trans. ASME, 106 (3), pp 364-368H. Lasota, R. Salamon, and B. Delannoy (July 1984) 3 figs, 4 refsInstitut Industriel du Nord, C.N.R.S.E.R.A. 593,Valenciennes, B.P. 48, 59650 Villeneuve d'Ascq, Key Words: Sound generation, Fluid-induced excitation,

France, J, Acoust. Soc. Amer., 76 (1), pp 280-290 Turbulence 0

(July 1984) 9 figs, 1 table, 33 refs The mechanics by which sound evolves from unsteady

boundaries and flow can be represented in acoustic analogies .

Key Words: Sound waves, Wave diffraction, Impulse response which provide a formal structure for analyzing the processof sound creation. The acoustic analogy of Lighthill has been"-.'- "

Acoustic diffraction of plane impulsive waves is considered the firmest foundation for modeling the jet noise problem.for free-field, baffled, and pressure release boundary condi- Studies of that problem have gradually increased in sophisti- -tions, in the case of an arbitrary spatial distribution of com- cation and scope to a point where the analogy itself has beenbined, amplitude-time delay modulation in an aperture. The developed to display characteristics that are novel and amethod is based on the impulse response analysis of parallel little startling. This paper will describe some of the develop- -'.-

aperture lines, the line impulse responses being then inte- ments leading to notions that turbulence can be influencedgrated to give an aperture impulse response. A closed-form, by well-chosen external stimuli and speculate a little onanalytical expression is derived for lines having an arbitrary areas where these effects might have significant practicalamplitude modulation, In the case of nonmodulated aper- applications.

• .- -.. . .

% 50 " ".".-" "-"

84-2753 ASME, 106 (3), pp 414-420 (July 1984) 6 figs, 29Long-Range Acoustic Scattering by Surface Inhomo- ref sgeneities Beneath a Turbulent Boundary LayerD.G. Crighton Key Words: Sound waves, Wave radiation0

Univ. of Leeds, Leeds, UK, J. Vib., Acoust., Stress, T plcto fteBudr nerlEuto BERe). Des., Trans. ASME, 106 (3), pp 376-382 (July Th application of the Boundary Integral Equation (BIE)

18)6rsmethod for the numerical solution of radiation problems . " I1984) 16 refs governed by Helmholtz's equation is discussed. An isopara-

metric element formulation is introduced in which both theKey Words: Sound waves, Wave scattering, Turbulence, surface geometry and the acoustic variables on the surfaceFluid-induced excitation of the radiating body are represented by quadratic shape

functions within the local coordinate system. A generalThe interaction of low frequency turbulent boundary layer result for the surface velocity potential is derived. This resulteddies and acoustic power and the acoustic fields produced includes the case where the surface may have a nonuniqueby it, are examined in detail in this paper for the inhomo- normal (e.g., at the edge of a body). The BIE method isgeneities represented by a simple line support rib, a simple used to obtain numerical solutions for three radiation prob-point support rib, and an edge to a plane elastic plate, either lems involving spherical and cubical geometry.with or without an adjacent rigid baffle, and with a range ofedge conditions.

84-2756Recent Modeling of Turbulent Wall Pressure andFluid Interaction with a Compliant Boundary

84-2754 D.M. ChaseReverberation Times of Closed Sound Paths with Chase, Inc., Cambridge, MA 02142, J. Vib., Acoust.,Low Damping (Nachhallzeiten schwach gedaimpfter Stress, Rel. Des., Trans. ASME, 106 (3), pp 328-333geschlossener Wellenwiage) (July 1984) 15 refsW. KuhlAm Reisenbrook 7a, D-2000, Hamburg, 67, Ger- Key Words: Underwater sound, Boundary value problems

many, Acustica, 55 (3), pp 187-192 (June 1984)10 figs, 10 refs The relation of wall-pressure amplitude to fluctuating Rey-

(In German) nolds-stress source amplitudes in the boundary layer isreviewed for inviscid, slightly compressible flow along a rigid *" ' "planar boundary. An orthotropic wall-similarity model for

Key Words: Sound waves, Reverberation, Damping source spectra is constructed and applied in this frameworkto derive a rough model for the wavevector-frequency spec-

The reverberation time of the sound path perpendicular to trum of turbulent wall pressure, including radiative wave-two parallel plates can be calculated by adding three damping numbers. By extension to a compliant boundary, withcomponents. It is shown by two examples, how the reverber nonlinear, fluctuating Reynolds stress omitted, an expressionation time in rooms with low diffusivity can differ in one is given for fluid-loading impedance and energy exchange in. '" . .,-

direction or in a part of the room from that in the diffuse the presence of flow with arbitrary mean velocity profile,sound field. in terms of a solution to the homogeneous equation for

pressure on a rigid wall.

SHOCK EXCITATION84-2755 (Also sei- Nos 2729 2741)

Application of the BIE Method to Sound RadiationProblems Using an Isoparametric ElementA.F. Seybert, B. Soenarko, F.J. Rizzo, and D.J. 84-2757Shippy Psuedospectral Solutions of One- and Two-Dimen-College of Engrg., Univ. of Kentucky, Lexington, KY sional Inviscid Flows with Shock Waves40506, J. Vib., Acoust., Stress, Rel. Des., Trans. L. Sakell

51

.. -. ...

.% . '.- - •. •

" '° * '- , °°.° - °*°° . " . °% .' ° . .. , . ". "- iA % - . . . ,& •, . .. - . - . - .- . . . - . .-. - - - - - . , -

O

Naval Res. Lab., Washington, DC, AIAA J., 22 (7), ties, computational complexity and numerical reliability of

pp 929-934 (July 1984) 22 figs, 5 refs these methods.

Key Words: Shock waves, Wave propagation

A new approach is presented for the utilization of pseudo- 84-2760spectral techniques for the solution of inviscid flows with Low-Frequency Transfer of Seismic Energy byshock waves using the full Euler equations of motion. Artifi-cial viscosity is applied together with low pass spectral filter- Superficial Soil Deposits and Soft Rocks

ing to damp out numerical oscillations that arise ahead of B. Mohammadioun and A. Peckerand behind the shock waves. Both second- and fourth-order Commissariat a I'Energie Atomique, Institut de Pro- •artificial viscosity schemes are utilized. Solutions are pre- tection et de S~rete Nucleaire, Departement d'Anal-sented for the one-dimensional propagating shock wave yse de S~rete, CEN Fontenay-aux-Roses, B.P. No.problem and for two-dimensional supersonic wedge flow. 6, 92260 Fontenay-aux-Roses, France, Earthquake

Engrg. Struc. Dynam., 12 (4), pp 537-564 (July/Aug1984) 26 figs, 1 table, 26 refs

S

84-2758 Key Words: Ground motion, Seismic design, Earthquakeresistant structuresThe Collapse of a Gas Bubble Near a Solid Wall by a

Shock Wave and the Induced Impulsive Pressure Recordings of recent strong earthquakes obtained on alluvial

A. Shima Y. Tomita, and K. Takahashi sites show that the maximum horizontal accelerations tendInst. of High Speed Mechanics, Tohoku Univ., Sendai, towards a limit of about 0.45 to 0.50g, associated with largeJapan, IMechE Proc., 198 (8), pp 81-86 (1984) displacements. By contrast, vertical accelerations do not 0

figs, 16 refs appear to be subject to such a limit. Theoretical linearelasticity models, when applied to superficial layers of lowstrength, seem to be inadequate for the prediction of near-

Key Words: Bubble dynamics, Shock waves, Wave propaga- field ground motions in alluvial deposits.

tion

An experimental study concerning shock wave-bubble ,

interaction was conducted in order to obtain a unified con- VIBRATION EXCITATIONsideration of the mechanism of the impulsive pressure genera- (Also see Nos 2730, 2831"

tion induced by the cavitation bubble collapse. It was found

that the relation between the maximum impulsive pressure

and the relative distance is closely similar to the known

result obtained from a single spark-generated bubble. 84-2761

Javelin Dynamics with Measured Lift, Drag, and

Pitching MomentM. Hubbard and H.J. RustUniv. of California, Davis, CA 95616, J. Appl. Mech., . -

84-2759 Trans. ASME, 51 (2), pp 406-408 (June 1984) 3A Comparison of Approximate Techniques for figs, 8 refs

Non-Linear Seismic Soil ResponseA. Corsanego, G. Solari, and D. Stura Key Words: Aerodynamic characteristics, Computerized

Istituto di Scienia delle Costruzioni, Univ. of Genova, simulation

Genova, Italy, Earthquake Engrg. Struc. Dynam.,12 (4), pp 451.466 (Ju ly/Aug 1984) 10 figs, 11 refs Optimal release conditions for the javelin are studied using

-computer simulation. Included are two important and

realistic assumptions: initial velocity attainable by the

Key Words: Soils, Seismic response, Equivalent linearization thrower is dependent on the throwing angle, and the aero-

method dynamic center of pressure moves as a function of angle of

attack. Aerodynamic forces and moments, previously mea-

Some equivalent linearization techniques, applicable to prob- sured in wind tunnel tests, are incorporated in the simula-

lems dealing with nonlinear seismic amplification of layered tion. Range contours are presented in the two-space of initial

soils, are systematically treated and critically compared. The angle of attack -- initial flight path angle, assuming zerodiscussion concerns theoretical consistency, operative modali- initial angular velocity.

52

"~~~~~~~~~~~~~~~~~~~~~~~~~~...' ..... '... ................. , .'................ "-.'.... -.. ...-. .. ..-.-,--.-....,.-. .

84-2762 Univ. of Southampton, Southampton, UK, J. Vib.,Dynamic Analysis of Plane Mechanisms with Multi Acoust., Stress, Rel. Des., Trans. ASME, 106 (3),Degrees of Freedom by Taking the Frame Vibration pp 383-388 (July 1984) 1 fig, 20 refsinto Consideration (Zur Dynamischen AnalyseEbener Mechanismen Mit Mehreren Freiheitsgraden Key Words: Sound generation, Plates, Fluid-induced excite-

Unter Berucksichtigung der Gestellschwingungen) tion, Underwater sound

* Nguyen Van KhangPolyechVnhe hThe theory of aerodynamic sound in the form developed byPolytechnische Hochschule Hanoi, Hanoi, Vietnam, Ffowcs-Williams and Hawkings is applied to investigate theRev. Roumaine Sci. Tech., Mecanique Appl., 29 (1), production of sound by turbulent boundary layer flow over

pp 65-79 (Jan/Feb 1984) 3 figs, 6 refs a thin, flexible plate. Conventional theories of boundary(In German) layer noise attribute the radiation to the boundary layer

quadrupoles and their (passive) images in the plate, andneglect the interaction of turbulence with the finite ampli.

Key Words: Vibration excitation, Frames, Mechanisms, tude motion of the plate caused by the wall pressure fluctu-Perturbation theory ations. This interaction generates sound whose intensity is

The differential equation for the determination of the characteristic of aerodynamic sources of dipole type.

effect of small vibrations of a frame on the elastic members .

of a plane mechanism is presented. The conditions fordynamic stability and for periodic vibration of the mecha-nism are obtained by means of perturbation method.

84-2765Effects of Surface Irregularity on Turbulent Bound-ary Layer Wall Pressure FluctuationsT.M. Farabee and M.J. Casarella

84-2763 David W. Taylor Naval Ship Res. and Dev. Ctr., ShipAcoustics Dept., Bethesda, MD, J. Vib., Acoust.,Excitation of Plates and Hydrofoils by Trailing Edge sts Des., ts M, 10 (3), pp o43-5,. -

FlowsStress, Rel. Des., Trans. ASME, 106 (3), pp 343-350

W.K. Blake (July 1984) 14 figs, 11 refs

David W. Taylor Naval Ship R&D Ctr., Bethesda, K

MD, J. Vib., Acoust., Stress, Rel. Des., Trans. ASME, Key Words: Turbulence. Boundary value problems. Fluid-induced excitation-..-. -'

106 (3), pp 351-363 (July 1984) 20 figs, 2 tables, inuedxitt"28 refs Measurements were made of the mean velocity profiles and

wall pressure field upstream and downstream of the flow overKey Words: Plates, Fluid-induced excitation both a backward-facing and forward-facing sLep. For each - .--- .

configuration the velocity profiles show that the effects ofThe flow-induced vibration of lifting surfaces is discussed the separation-reattachment process persist more than - .

from the perspective of the properties of the various flow 24 step heights downstream of the step. Extremely high -

regimes that exist on the surfaces. Depending on the Rey- values of the RMS wall pressure are measured near reattach- - - -nolds number and the geometry of the foil, the flow excita- ment. These values are 5 and 10 times larger than on a

tion may be tonal (generated by periodic vortex shedding) smooth flat plate for the backward-facing step and theor random (generated by turbulent flow on the surface). forward-facing step, respectively.Conditions are cited for the existence of vortex sheddingexcitation, and relationships are given for estimating thelevels of flow-induced vibration to be expected from eachflow source.

84-2766Estimation of the Wavevector-Frequency Spectrumof Turbulent Boundary Layer Wall Pressure byMultiple Linear Regression

84-2764 Y.F. Hwang and F.E. GeibThe Influence of Surface Compliance on the Produc- David W. Taylor Naval Ship R&D Ctr., Bethesda, MD,tion of Sound by a Turbulent Boundary Layer J. Vib., Acoust., Stress, Rel. Des., Trans. ASME,MS. Howe 106 (3), pp 334-342 (July 1984) 4 tables, 14 refs " .

53~- Q -C - $ § x . W - .-:--°,- -. °-o- -:.-.o-.-.....

.......................................................

Key Words: Turbulence, Boundary value problems, Fluid- 84-2769induced excitation Vibrations and Stability of Mechanical Systems: III

K. HuseyinThe wavevector-frequency spectrum of the turbulent bound- Univ. of Waterloo, Ontario, Canada N2L 3G1, Shockary layer wall pressure in the incompressive, inviscid domainin the intermediate and high frequencies range is examined. Vib. Dig., 16 (7), pp 15-22 (July 1984) 92 refsThe rationale of using a linear regression model for estimating

7 the normalized wavevector-frequency spectrum with a set of Key Words: Vibration analysis, Stability, Reviews " " . -measured response data from a wavevector filter is presented.

This is the third review article concerning general develop-

ments in the area of vibrations and stability of mechanical 0systems. Advances that have been made since 1980 aredescribed. The review covers both linear and nonlineartheories as well as basic methodology developed for holo-nomic autonomous mechanical (discrete) systems.

84-2767Unsteady Flow Concepts for Dynamic Stall AnalysisL.E. Ericsson and J.P. Reding 0Lockheed Missiles & Space Co., Sunnyvale, CA, J. MECHANICAL PROPERTIESAircraft, 21 (8), pp 601-606 (Aug 1984) 12 figs.28 refs

Key Words: Airfoils, Stalling, Aerodynamic loads DAMPING .

0It is well established that there is a strong coupling betweenairfoil motion and boundary-layer separation with attendant 84-2770vortex shedding. Until now sufficient information has not Constrained Layer Damping with Vitreous Enamel - -been available to determine the relative importance of B. Kumar and M. L. Drakevarious unsteady flow effects, such as the time-varyinginviscid pressure gradient and the unsteady viscous boundary Univ. of Dayton Res. Inst., Dayton, OH 45469, J.condition at the wall, the moving wall effect. Recent experi- Sound Vib., 93 (3), pp 389-395 (Apr 8, 1984) 6mental results provide the needed information, revealing how figs, 2 tables, 5 refsthe mode of oscillation for the airfoil determines whichunsteady flow effect will dominate. Key Words: Damping, Layered damping

The concept of constrained layer damping with vitreous - -

enamel is experimentally evaluated. The constraining layer .. -markedly broadens the free layer damping peak. The broad- Sening is explained on the basis of two simultaneous energydissipation mechanisms and is related to the vitreous enamel's

84-2768 loss factor and viscosity.

Application of Transonic Codes to AeroclasticModeling of Airfoils Including Active ControlsJ.T. Batina and T.Y. YangPurdue Univ., West Lafayette, IN, J. Aircraft, 21 (8), 84-2771pp 623-630 (Aug 1984) 12 figs, 3 tables, 25 refs Nonzero Mean Random Vibration of Hysteretic

Systems* Key Words: Airfoils, Stability, Active control T.T. Baber

Univ. of Virginia, Charlottesville, VA 22901, ASCEA study is performed using aeroelastic modeling to investi- J. Engrg. Mech., 110 (7), pp 1036-1049 (July 1984)gate the stability behavior of airfoils in small-disturbance - 0transonic flow. Two conventional airfoils and a supercritical 9 figs, 17 refsairfoil are considered. Three sets of unsteady aerodynamicdata are computed using three different transonic codes for Key Words: Hysteretic damping, Random excitationcomparison purposes. Stability results obtained using aconstant matrix, state-space, aeroelastic model are presented A differential equation model for hysteretic systems isin a root-locus format. analyzed under nonzero mean random excitation. Under

54

-. . . .. . . ..

7 7

certain conditions, a closed form linearization of the equa- interaction. The concepts involved are developed by refer-tions of motion is possible. Resulting mean and zero time lag ence to viscously damped single-degree-of-freedom systems, .covariance responses agree well with Monte Carlo response and numerical solutions are included to illustrate the accu- -simulations. Generalization to degrading systems is straight- racy and efficiency of the proposed procedure and its superi- .forward. Skewness coefficients computed from simulation ority over the classical discrete Fourier transform approach.results indicate significantly asymmetric; response. - -. *. -

FATIGUE

84-2772Modification Caused by Compliant Layers andBlankets in the Pressure Field Induced on a Boundary 84-2774G. Maidanik Calculation of the Plasma Nitrated Structural Compo- "David W. Taylor Naval Ship R&D Ctr,, Bethesda, MD, nent Samples Taking into Consideration the HardnessJ. Vib., Acoust., Stress, Rel. Des., Trans. ASME, Curve and Residual Stress (Berechnung der Dauer-106 (3), pp 369-375 (July 1984) 10 figs, 6 refs schwingfestigkeit von plasmanitrierten bauteilihn-

lichen Proben unter Berucksichtigung des ffarte - undKey Words: Structural modification techniques, Cladding, Eigenspannungsverlaufs)Layered damping K.H. Kloos and E. Velten

A primitive analytical tool to assess the modification in the Institut f. Werkstoffkunde der Technischen Hoch-response caused by introducing various combinations of schule Darmstadt, Fed. Rep. Germany, Konstruktion, -

flexible layers on panels is proposed and developed. The 36 (5), pp 181-188 (May 1984) 13 figs, 4 tables, 23 -- tool is primitive in the sense that quantities which charac-

terize the dynamic system are expressed in terms of lumped rfsparameters. The formalism is expressed in terms of a matrix (In German)

that relates the response vector to an external drive vectorthat induces the response. An element of the matrix iden- Key Words: Fatigue life, Internal stress, Hardness effects -tifles the surface on which an external test drive is acting 0and the surface on which the resulting response is assessed. Fatigue strength of boundary layer-stiffened structural.'The general formalism is specialized to the case of a panel components is considerably affected by the boundary hard-that is clad with a composite consisting of a compliant layer ness and residual stress in the near surface area. For theand a blanket. determination of a quantitative effect of these characteristics

a procedure for the calculation of fatigue strength of plasma-nitrated structural component samples using numerous d.. .

experimental data is derived. The calculated results agree well ,

with the test data in spite of the multiplicity of parameters.

84-2773Efficient Analysis of Dynamic Response of LinearSystemsA.S. Veletsos and C.E. VenturaRice Univ., Houston, TX 77251, Earthquake Engrg. 84-2775 SStruc. Dynam., 12 (4), pp 521-536 (July/Aug 1984) Study on Crack Growth Behaviors in Impact Fatigue

4 figs, 2 tables, 8 ref s (Part II. Crack Closure Behaviour under SimpleImpact Load)

-'. Key Words: Transient response, Interaction: soil-structure, H. Nakayama, Y. Kanayama, M. Shikida, and T.

Damped structures, Viscous damping TanakaOsaka Industrial Univ., Nakagaito, Daito-city, Osaka, -

After reviewing briefly a recently proposed procedure for Japan. Bull. JSME, 27 (227), pp 854-861 (May 1984)evaluating the dynamic transient response of a classically 1damped linear system from its corresponding steady-state 1 1 2response, a modified procedure is presented which alsoappears to be highly efficient for non-classically damped Key Words: Fatigue tests, Impact excitation, Crack propaga-systems of the type encountered in studies of soil-structure tion

|0

55

.....

) o%b°

_ 7-

.. ... ... ..

Fatigue crack growth behavior was investigated under a ELASTICITY AND PLASTICITYsimple impact stress pattern by using center-notched 0.1% Caluminum killed carbon steel plate specimens, and resultsobtained were discussed in comparison with those obtainedunder non-impact fatigue.

84-2778Mode Conversion and Resonance Scattering of -'

Elastic Waves from a Cylindrical Fluid-Filled CavityS.G. Solomon, H. Uberall, and K.B. Yoo .

84.2776 ORI, Inc., 1400 Spring St., Silver Spring, MD 20910,

Study on Characteristics of Fatigue Crack Propaga- Acustica, 55 (3), pp 147-159 (June 1984) 16 figs,

tion at Near-threshold Range and Its Affecting 1 table, 18 refsFactorsYan Minggao Key Words: Elastic waves, Cavities, Wave scattering

Acta Aeron. et Astron. Sinica, 4(2), pp 13-29 (1983) Mode conversion and scattering of compressional and shear

CSTA No. 629.1-83.18 waves from cylindrical cavities are studied by performing .-

partial wave expansions of the incident and scattered fields.

Key Words: Fatigue life, Crack propagation Analysis, supported by extensive numerical calculations,shows that each partial wave spectrum consists of a smooth

A review of the characteristics and mechanisms of fatigue background identical to that of an empty cavity and a series

crack propagation (FCP) at near-threshold range in various of resonance terms associated with the eigenvibrations of -

metals and alloys is presented. Experimental results from a the cavity's fluid interior. The scattering matrix for the

series of microfractographic analyses of specimens and struc- cavity is defined and its unitary and symmetry properties are

tures indicated that a type of crystallographic fracture discussed. Argand diagrams of the trajectories of the S-matrix

occurs predominantly at near-threshold range. A correlation elements in the complex plane are shown to have certain

of the orientation of facets for different metals and alloys easily recognized features which are associated with the

with lattice structures, SFS and modes of slip are described, cavity resonances.

The relation between the fatigue limits of plain- and notched-

specimens and fatigue thresholds together with the mecha-nism of FCP behavior in short cracks is evaluated.

84.2779Some Thoughts on the Subject of Dynamic Elastic-

84-2777 Plastic Analyses of Rapid Crack Propagation andModeling Cyclic Deformation and Fatigue Behavior Crack Arrestof Cast Iron under Uniaxial Loading M.F. KanninenS.D. Downing Battelle Columbus Labs., OH, 6 pp (Oct 1983) Work- .-

Ph.D. Thesis, Univ. of Illinois at Urbana-Champaign, shop on Dynamic Fracture held at Pasadena, CA,

117 pp (1983) Feb 17-18, 1983, pp 226-233

DA8409911 AD-P003 116

Key Words: Fatigue life, Metals, Cyclic loading Key Words: Crack propagation

A model for estimating cyclic deformation behavior of cast Despite the fact that the basic assumption of linear elasticiron under uniaxial loading is described. The model separates fracture mechanics iLEFM) -- contained-yielding -- is violatedtotal response into components due to symmetrical elastic/ for a crack that grows, most attempts to characterize rapidplastic response in the matrix/graphite composite and to the crack propagation and arrest are nevertheless rooted innonlinear elastic response of the free graphite phase. Predic- LEFM. Starting from LEFM-based analysis procedures thattions are compared to experimental data for gray cast iron, form the current state-of-the-art, this paper attempts tocompacted graphite cast iron and nodular iron. A continuum provide some perspective for this evolutionary trend indamage model for fatigue analysis of cast iron is also dis- dynamic fracture mechanics. Emphasized are some of thecussed. The model considers damage to be a global measure potential dilemmas that face the researchers pursuing thisof surface crack growth, subject.

56

- • %

--. ~~ ~ % : :i:i

84-2780 84-2782Viscoelastic Effect on Dynamic Crack Propagation in Path-Independent Integrals in Dynamic FractureHomalite 100 MechanicsK.S. Kim, K.L. Dickerson, and W.G. Knauss S.N. Atluri and T. NishiokaIllinois Univ. at Urbana-Champaign, IL, 21 pp (Oct Ctr. for the Advancement of Computational Mechan-1983) Workshop on Dynamic Fracture held at ics, Georgia Inst. of Tech., Atlanta, GA, 13 pp (OctPasadena, CA, Feb 17-18, 1983, pp 205-225 1983) Workshop on Dynamic Fracture held atAD-P003 115 Pasadena, CA, Feb 17-18, 1983, pp 156-168 -

AD-P003 111Key Words: Crack propagation, Viscoelastic media

Key Words: Crack propagationThe optical method of caustics is used to determine thestress intensity factor for a running crack in a viscoelastic Linear elastodynamic crack propagation under mixed modematerial. A formulation of the quasi-static deformation non-steady conditions with an arbitrary velocity are con-of materials with rheologically simple shadow-optic creep sidered.functions is derived for the caustics, solved numerically andapplied to the fracture testing of Homalite-100 at varioustemperatures (40 deg C - 100 deg C). Theoretical and experi-mental caustics show good agreement in shape even formoderately high crack speeds (150 - 300 m/sec). Results 84-2783also show that the relation between the stress intensity Some Theoretical Results on the Dependence offactor and the crack speed for Homalite 100 is highly sensi-tive to temperature variations. Dynamnic Stress Intensity Factor on Crack Tip Speed

L.B. FreundBrown Univ., Providence, RI, 8 pp (Oct 1983) Work- 0shop on Dynamic Fracture held at Pasadena, CA,Feb 17-18, 1983, pp 129-136AD-P003 109

Key Words: Crack propagation, Metals, Steel

84-2781 Two specific topics are discussed under this common head-Dynamic, Steady-State Crack Propagation in Linear ing. The first is concerned with elastic-plastic crack growth

Isotropic Viscoelastic Material and, in particular, with developing theoretical models toJ.R. Walton explain the dependence of dynamic fracture toughness on

Texas A&M Univ., College Station, TX, 8 pp (Oct crack tip speed observed for 4340 steel and other highstrength, low ductility materials which fail in a locally

1983) Workshop on Dynamic Fracture held at ductile manner. The second topic is concerned with limita- SPasadena, CA, Feb 17-18, 1983, pp 197-204 tions on the use of crack tip singular fields to describe actual

AD-P003 114 stresses in elastic brittle materials during dynamic fracture.The problem discussed is the steady-state growth of a crackin the antiplane shear mode under small scale yielding condi-Key Words: Crack propagation, Viscoelastic media tions. Inertial resistance of the material is taken into account

This paper is a summary of results of some recent analytical explicitly but, for steady state growth, the deformation is

studies of dynamic, steady-state crack propagation in linear time independent as viewed by an observer fixed at the

viscoelastic material. Closed form solutions are presented moving crack tip. Results are considered for two materialfor the problems of a semi-infinite, anti-plane shear crack models, elastic-ideally plastic and elastic-viscoplastic. Accord-pr with constant speed in an infinite general linear ing to the small scale yielding hypothesis, the (possibly non-.propagating wit costn spe inaniiegnrllna

viscoelastic body and in a layer of finite thickness. For both linear) crack tip stress and deformation fields are controlledboundary value problems, and for a general class of shear by the surrounding elastic field.

modulus, the solutions obtained exhibit a universal structurethat depends in a simple way upon the time dependent shear _modulus and crack speed. The forms for the solutions areconvenient for the extraction of qualitative and quantitativeinformation about the dependence of the stress field in the 84-2784body upon the loading, the crack speed and the shear modu- Dynamic Crack Growth Criteria in Structural Metalslus. A.J, Rosakis, J. Duffy, and LB. Freund

57

%".--- =o.... . . . . . . . . .* . .... . ," ,-. - .

7--. -- 7.

California Inst. of Tech., Pasadena, CA, 19 pp (Oct J.F. Kalthoff1983) Workshop on Dynamic Fracture held at Pasa- Fraunhofer-Gesellschaft zuer Foerderung der Ange-dena, CA, Feb 17-18, 1983, pp 100-119 wandten Forschung e.V., Freiburg im Bressau,AD-P003 107 Fed. Rep. Germany, Inst. fuer Werstoffmechanik, 0

25 pp (Oct 1983) Workshop on Dynamic FractureKey Words: Crack propagation, Steel held at Pasadena, CA, Feb 17-18, 1983, pp 11-35

AD-P0 0Analytical difficulties associated with the dynamic crack -P,03 10-

propagation problem have limited the available dynamicsolutions to idealized situations. The major limitations Key Words: Crack propagation

introduced by these analytical solt~tions make both numerical TThe term fracture dynamics includes both crack tip motionmethods and direct experimental observations necessary forthe complete understanding of the dynamic fracture process, discssed rega ding b cracks propagation, a re .A principal purpose of experimental studies is to observe discussed regarding the subjects crack propagation, arrest of

directly the instantaneous stress intensity factor as a function fact running cracks, time dependent loading in general, and

of crack speed, and to determine whether or not the observed loading of cracks by sharp stress pulses of short duration.

variation constitutes a material characteristic. The present Following the guidelines of the workshop, previous results

paper provides a description of dynamic crack propagation are briefly summarized to state the current situation, butexperiments on double cantilever beam specimens of a high special consideration is given to still open questions and

* exerient on oube cntieverbsa spcimes o a igh problems not yet resolved. Most experimental data reportedstrongth steel. Measurements of the crack tip deformationfield and of crack speed during propagation have been made in this paper heve been generated by means of the shadowusing the optical method of caustics in reflection. optical method of caustics. The caustics technique is an

optical tool for measuring stress intensifications.

84-2785Short Pulse Fracture MechanicsD.A. Shockey, J.F. Kalthoff, H. Homma, and D.C.Erlich 84-2787 0SRI International, Menlo Park, CA, 15 pp (Oct 1983) Plate Impact Experiment for Studying Crack Initia-Workshop on Dynamic Fracture held at Pasadena, tion at Loading Rates K(]) Approximately 10(8)CA, Feb 17-18, 1983, pp 57-71 MPa m/sAD-P003 105 R.J. Clifton and G. Ravichandran

Brown Univ., Providence, RI, 11 pp (Oct 1983)Key Words: Crack propagation Workshop on Dynamic Fracture held at Pasadena, _ .

CA, Feb 17-18, 1983, pp 36-46A research effort was begun eight years ago at SRI Inter-national to analyze the response of a crack struck by a short- "D..0"'.103lived tensile pulse and to modify static fracture mechanicsconcepts to allow predictions of dynamic crack instability. Key Words: Crack propagationThe results of this work, which have been presented in aseries of papers over the past six years, comprise a unified A symmetric plate impact technique is being developed forextension of classical fracture mechanics and are summa- establishing the critical conditions for dynamic fracture .

rized here. Considerations of the stress intensity history initiation at extremely high loading rates. The specimenexperienced by a dynamically loaded crack tip are reviewed, consists of a circular disc with a midplane, prefatigued, edgeand the instability criterion is considered, crack that has propagated halfway across the diameter. A

compressive pulse propagates through the specimen, reflectsfrom the rear surface, and subjects the crack plane to a steptensile pulse. The motion of the rear surface of the specimenis monitored with a laser interferometer system in order to _ .determine the loading time required for crack extension tobegin. Using this time in the elastodynamics solution of the

84.2786 stress wave diffraction problem, one can obtain the critical

Some Current Problems in Experimental Fracture value of the stress intensity factor for dynamic fracture

Dynamnics initiation.

58

-.-. , -

. ................ .~~~~~~~................................. ......- ........ - ... 7 o._o

. . ... .-. -, ..

k, .-" -. ,.-. - " -" .. - -. --. ' -= -. '- " - - - ,. _- -"

".. *. - ' -,. -- -. -.-- °-. - r- ---.-. -- - Y- - -r-- --' --- . ---

WAVE PROPAGATION EXPERIMENTATION

84-2788Frequency-Dependent Elastic Properties of Rubber-like Materials with a Random Distribution of Voids MEASUREMENT AND ANALYSIS

" V.K. Varadan, V.V. Varadan, and Y. Ma* Ohio State Univ., Columbus, OH 43210, J. Acoust.

Soc. Amer., 76 (1), pp 296-300 (July 1984) 9 figs, 84-2790 023 refs Finite Element and Experimental Modeling of Three-

Dimensional Annular-Like Acoustic Cavities UsingKey Words: Elastomers, Discontinuity-containing media, the Normal Mode ApproachFrequency dependent parameters, Wave scattering Chaw-Hua Charles Kung

L, ~Ph.D. Thesis, Ohio State Univ., 166 pp (1984) =..A self-consistent multiple scattering approach with suitablepair-correlation function has been employed to study the DA841 0394 Sfrequency-dependent properties of rubber materials con-taining a random distribution of voids. Numerical results Key Words: Cavities, Modal analysis, Finite element tech- •indicate that for a certain range of concentration of voids, niquethe resonance of the voids controls the frequency-dependenteffective properties such that the imaginary part of the Since closed form solutions for natural frequencies andeffective wavenumber becomes greater than the real part. modes of cavities are not possible, computational and experi-This indicates that the propagating wave will be damped out mental methods which are the main focuses of this study - S

* over a distance smaller than a wavelength. TI' so-called must be adopted. The scope of the study is limited to a linear - ""superviscous" propagation seems to occur over a bandwidth system with zero mean flow and negligible temperature " "controlled by the concentration of voids, gradient; the frequency range of interest is approximately

0 - 2000 Hz for an air medium at room temperature andpressure. Two finite element methods, one using a variationalmethod and the other employing a transient heat conductionanalogy, are used for modal analysis of a number of cavities .with emphasis on annular-like cavities; example cases studied

84-2789 include an acoustic column, a Helmholtz resonator, anacoustic ring, an acoustic disk, a pure annular cavity, and

Experiments on Guided-Waves Propagation in Hetero- annular-like cavities. Condensation of the eigenproblems

geneous Media (Exprimentations sur [a propaga- in the solution process is also considered. The results indicatetion d'ondes guidees en milieu hterogene) that with carefully chosen meshes, the finite element models .

M. Touratier predict the first few modes of acoustic cavities accurately

Ecole Nationale Superieure d'Arts et Metiers, 151 bd with moderate cost.

de I'Hopital, 75640 Paris Cedex 13, Acustica, 55 (2),pp 86-100 (May 1984) 15 figs, 14 refs(In French)

Key Words: Wave propagation, Experimental data 84-2791Time-Domain Quasilinear Identification of Nonlinear

An experimental study has been undertaken on two bi- Dynamic Systemsmetallic wave guides of rectangular section: a clad rectan- S.R. Ibrahimgular core and a three-layer. The frequency spectra is pre- Old Dominion Univ., Norfolk, VA, AIAA J, 22 (6),

K sented and the dependence of phase velocity with frequency -is determined. For average frequencies, the propagation Pp 817-823 (June 1984) 9 figs. 11 tables, 26 refsmodes are strongly coupled. The existence of transition

6- velocities and the aspect of distribution of relative accelera- Key Words: Modal analysis, System identification, Quasi-tion in the final section of guides confirm that the funda- linearization technique, Time domain methodmental mode of propagation is guided into a central region(core or central layer) at high frequencies. The comparison A time-domain linear modal identification technique isbetween experiments and theory is made on fundamental applied to identify some highly nonlinear dynamic systems.modes and the higher modes of propagation. The modal concept is used to identify such nonlinear systems - .-- -. -.

-o. - --,

59

7,: '-,%. ,:..-...- .

with the understanding that the resulting modes are only equations, which are previously undefined in the literature,a mathematical representation of the series solution of the are a set of simultaneous cubic equations with constantnonlinear system under consideration. Naturally, these coefficients. They can be solved by means of a converging -

identified modal parameters are not unique for nonlinear iteration scheme to obtain all of the mode shapes. Each 0systems, since they are functions of the systems' amplitudes mode shape can be successively substituted back into Ray-and hence referred to as quasilinear. The approach presented leigh's quotient to obtain the corresponding natural fre-in this paper can be useful in predicting signs of nonlinearities quency. It is therefore possible to determine all of thewhen linearity is assumed. It can also be used to analyze and mode shapes and natural frequencies of a system withoutunderstand the types of nonlinearities in nonlinear systems developing or solving the characteristic polynomial. .through successive identifications at different levels ofresponse. S

84-2792 84-2794Ground Vibration Testing at Boeing Frequency Analysis of Surfaces Machined UsingGrd Carbon Different Lubricants

Boeing Commercial Airplane Co.. Seattle, WA, S/V. L. DeChiffreSound Vib.. 18 16), pp 16-20 (June 1984) 6 figs, AMT, Technical Univ. of Denmark, 2800 Lyngby,7 refs Denmark, ASLE, Trans., 27 (3), pp 220-226 (July

1984) 10 figs, 3 tables, 3 refs

Key Words: Modal analysis, Vibration tests, Experimentalmodal analysis, Random excitation, Aircraft Key Words: Frequency analysis, Surface roughness, Lubrica-

tion

In the last four years, a number of improvements have beenmade in the techniques used to perform modal analysis tests The paper is concerned with surface roughness analysis as a . -

on airplanes and other aircraft structures. These improve- means of investigating lubricant action in cutting. An experi-

ments are the result of a concentrated effort to reduce test mental setup involving a high-resolution signal analyzer has

time to a minimum through extensive use of computers and been used to obtain power spectrum characteristics, as well

multiplexers in the data gathering and processing operations. as conventional surface roughness parameters, of surfaces

The use of multiple shaker random excitation is discussed machined using different work materials and cutting fluids.

along with the data processing techniques required forinterpreting these data. In addition to data gathering andprocessing this article discusses techniques used for mount-- -.- ..

ing transducers, and a soft support system designed toseparate the flexural modes from the rigid body modes of 0the airplane.

84-2795A Phase Difference Technique for Acoustic Imaging - -

M Hayama and K TodaThe National Defense Academy, Hashirimizu, Yoku

84-2793 suka 239, Japan, J. Acoust. Soc. Amer., 76 (1), pp 0The Modal Equations 184-185 (July 1984) 4 figs, 4 refs

A E Anuta, Jr.The Univ. of North Dakota, Grand Forks, ND 58202, Key Words: Acoustic imaging, Nondestructive tests " ""

Computer Strut, , 18 (6), pp 955-962 (1984) 1 fi"

8 refs A method for obtaining C-scan images is reported by using aLamb wave device with two arched interdigital transducers,in which the phase difference between an input signal as a

Key Words: Modal analysis, Natural frequencies, Mode reference and a delayed signal reflected at a sample surfaceshapes, Rayleigh method, Iteration or inside a test sample is detected as a function of the posi- .. --.

tion. The transducers are used as a sound beam radiator or aFor linear structural dynamics problems, an application of detector at a liquid-solid interface. Acoustic imaging results .. - -

the minimizing properties of calculus to Rayleigh's quotient are satisfactory in measuring the stress fields in ceramic ...

leads to the model equations of the system. The modal samples. •

60 %

: :--..:.:::,;: : .: :.-..,-,.. - -....... .. . . .. /. ... ,..... . -......... :" -

• .-.... .... : :. .:.:.... ...-. . .... .. .,... -.. . °. . . ,, . .,. .. .. ., . .. - . . . .. . . .. :,..

84.2796 51 (4), pp 123-129 (Apr 1984) 18 figs, 1 table, 3Estimation of Linearized Oil-Fi'm Parameters from ref sthe Out.of-Balance Response (In German)M.N. Sahinkaya and C. R. Burrows -Dept. of Dynamics and Control, Univ. of Strathclyde, Key Words: Vibration detectors, Measuring instruments,

Glasgow, Scotland, IMechE Proc., 198 (8), pp 131- Magnetic fields

134 (1984) 1 table, 10 refsWiegand effect position sensors have inherent insensitiveness . . -

against environmental conditions. The sensor device consistsKey Words: Parameter identification technique, Rotors, of several components optimal matched to the specific caseSynchronous vibration of application. In addition the magnetic field for the Wiegand

Effect Sensor can be generated by a permanent magnet orThis paper outlines a simple approach to the identification of electromagnetically. That allows devices for the measurementlinearized oil-film characteristics from the rotor's synchro- of speed, position and angle of rotating and linear movement.nous response. The method is shown to be effective in filter- The signal transmission is possible without power supplying signal noise. by two-wire circuit, but also wireless or by fiber optic with

excellent signal to noise ratio.0.

84-2797 84-2799Laser-Optical Measurement of Surface Distortion Incremental Linear Transducer Using Wiegand Sen-with Extreme Dynamic Loads (Laser-optisches sors (Inkrementaler Lineargeber mit Wiegand- Sen-Messen von Oberflchenauslenkungen bei extrem- soren) •dynamischen Belastungen) N. NormannF. Schubert DODUCO KG Dr. E. Durrwachter, Bereich Sensoren, . -

Laboratorium f. Mess- und Feinwerktechnik an der Im Altgefall 12, D-7530 Pforzheim, Germany, Techn.Hochschule der Bundeswehr Hamburg, Germany, Messen-TM, 51 (4), pp 130-132 (Apr 1984) 3 figs,Feinwerktech. u. Messtech., 92 (2), pp 83-84 (1984) 7 refs6 figs, 3 refs (In German) .(In German)

Key Words: Transducers, Vibration detectorsKey Words: Measurement techniques, Lasers, Optical meth-ods, High frequencies Wiegand sensors are suitable for applications under hostile .. --

environmental conditions. An incremental linear transducerWith extreme dynamic loads, surface movements occur with which uses this sensor type and allows a long system length --

very small amplitudes and high velocity. The known path is described.measuring methods are not really suited for the determine-tion of such occurrences. The here given diffraction opticalmeasuring procedure operates contact-free, can be easilyadjusted and has the necessary resolution. Its critical fre-quency is only determined by the sensors and the digital 84-2800storages. The basic usability of the method is proven using Strain-Gauge Sensor with Frequency Output (DMS-an example. Sensor mit Frequenzausgang)

B. Heck and D. Meyer-EbrechtPhilips GmbH, Forschungslaboratorium Hamburg,Vogt-Kolin-Strasse 30, D-2000 Hamburg 54, Fed.Rep. Germany, Techn. Messen-TM, 51 (5), pp 171-

84-2798 17 My18)7fg,4rtWiegand Effect Position and Velocity Sensors (Wie- 175 (May 1984) 7 figs, 4 refs

(In German) - -

gand-Sensoren ffir Weg- und Geschwindigkeitsmes- (InGerman)sulngen) Key Words: Measuring instrumentsH.-J. Gevatter and G. Kuers .. -" ,

DODUCO KG Dr. Eugen D16rrwchter, Altgefall 12, A novel RC sine-wave oscillator circuit is described which isD-7530 Pforzheim, Germany, Techn. Messen-TM, ideally suited for inexpensive but accurate sensor signal

61

.-.-.------ --- - -. -- .- -. . . . .. .. .-- -- -- --- - '- - ."., .:'.'" "'. :" "-" "°"."". ". '." .'" "'. " . ."." . :'."'" ""-."'-"-: . " '. " - '-" % "° '- ", ".' -"'"" ".' -'" " . " "'". " ",? -"" "" "." ." ,'

. ~ '-r.. -.* . . .

converters. Its oscillation frequency is controlled by a single 84-2803attenuator element without effect on the oscillation ampli- Measurement Technology and Signal Processing.tude. Applications of this oscillator as a converter for strain- Analog Measurement Technology and Signal Pro-gauge sensors have been investigated. ceing (Messtechnik und Messsignalverarbeitmg.

Analoge Messtechnik und Messignaiverarbeitung)

H.-R. TranklerInst. f. Mess.- und Regelungstechnik, Hochschule der

84-2801 Bundeswehr M nchen, Werner-Heisenberg-Weg 39,Measurement Technology and Signa Procesing D8014 Neubiberg, Fed. Rep. Germany, Techn.(Meastechnik nd Meignalverarbeitung) Messen.-TM, 51 (5), pp 195-199 (May 1984) 6 figs, 0H.-R. Trnkler 7 refs (continued from April 1984)

Institut f. Mess- und Regelungstechnik, Hochschule (In German)

der Bundeswehr Munchen, Werner-Heisenberg-Weg39, D8014 Neubiberg, Fed. Rep. Germany, Techn. Key Words: Measuring instruments, Signal processing tech- . .

Messen.-TM, 51 (4), p 155 (Apr 1984) niques

(In German) The output of analog data by means of a linear moving coilmeasuring system is discussed in this segment of the series.

Key Words: Measurement techniques, Measuring instruments, Because of the importance of analog data presentation and

Signal processing techniques of linear moving coil instruments with external magnets, . "this type of measuring means is chosen as an example of

The topic of electronic signal processing will be featured in linearly deforming measuring element. Also, the meaning

a series of monthly articles to be published over a period of of analog data is described. The article closes with a discus-

two years. The articles will discuss the important elements sion of the physical effect, construction and production, the

of analog and digital measurement technology, its function dimensioning of magnetic circuit, and several important

in measurement systems, and a systematic correction and static transfer characteristics of the moving coil measuring

processing of the data. The series will be roughly subdivided system.

under the following topics: A) An Introduction to Measure-ment Technology, B) Analog Measurement Techniques,C Digital Measurement Techniques, D) Measurement Values

Pick ups, E) Measuring Systems and Digital Data Pro-cessing. F) A Supplement to the Measurement Technology.

84-2804Measurement Technology and Signal Processing.

84-2802 Analog Measurement Technology and Signal Pro-cessing (Messtechnik und Messsignalverarbeitung.

Measurement Technology and Signal Processing. Analoge Messtechnik und Messsignalverarbeitung)Introduction to Measurement Technology (Mess- H.-R. Tranklertechnik und Messsignalverarbeitung. Einfuhrung in Inst. f. Mess.- und Regelungstechnik, Hochschuledie Mestecnik) der Bundeswehr MUnchen, Werner-Heisenberg-Weg "- - -

H.-R. Tr~nkler 39, D8014 Neubiberg, Fed. Rep. Germany, Techn.Inst. f. Mess.- und Regelungstechnik, Hochschule Messen.-TM, 51 (6), pp 242-246 (June 1984) 7 figs,der Bundeswehr Munchen, Werner-Heisenberg-Weg 2 refs (continued from May 1984)

39, D8014 Neubiberg, Fed. Rep. Germany, Tech. (In German)

Messen.-TM, 51 (4), pp 155-158 (Apr 1984) 1 fig(In German)

Key Words: Measuring instruments, Signal processing tech-

Key Words: Measurement techniques, Signal processing ntechniques A number of characteristics are important for the evaluation -- '"

of a measuring system. They are the static transfer properties --The first article of this series discusses the meaning of mea- (e.g., accuracy), the dynamic transfer properties (e.g., adjust- . . -

surement and signal processing technology, the field of ment time), the reliability (e.g., rate of failure), and the costapplication and special problems, and the criteria for orga- and maintainability of the instrument. In this section the "'%'-, -. -.

nizing the subject matter, static transfer characteristics are discussed.

62

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m.. o j . .. o. .. , •. °°. .,° .° o.. o., o • . . ° o. .°% % o .. % °% . % .° * ...- .- .o° °° o

84-2805 stand and a computer-controlled measuring system render

Measurement Technology and Signal Processing. possible a quick exhaust gas noise analysis, particularly in

Analog Measurement Technology and Signal Pro- the case of non-stationary operating conditions.

ceasing (Messtechnik und Messignalverarbeitung. SAnaloge Mesntechnik und Messsignalverarbeitung)H.-R. Tr'ankler

Inst. f. Mess- und Regelungstechnik, Hochschule SCALING AND MODELINGder Bundeswehr Munchen, Werner-Heisenberg-Weg " "'.-.39, D8014 Neubiberg, Fed. Rep. Germany, Techn.Messen.-TM, 51 (7/8), pp 285-289 (July-Aug 1984) 84-28075 figs, 8 refs (continued from June 1984) Scaling Methods for Earthquake Response Spectra(In German) J.M. Nau and W.J. Hall

North Carolina State Univ., RaltJgh, NC 27650,Key Words: Measuring instruments, Signal processing tech- ASCE J. Struc. Engrg., 110 (7), pp 1533-1548niques (July 1984) 6 figs, 4 tables, 25 refs

Discrete and continuous data distribution, especially theGaussian normal distribution, is discussed. The essential Key Words: Scaling, Seismic response spectra, Seismiccharacteristics are mean value and standard deviation. The design, Earthquake resistant structuresintegration of distribution function gives the probability forthe occurrence of data within a certain interval. Of particular In current practice, design response spectra are normalizedpractical importance is the confidence interval of the mean by the three peak ground motions. Alternative scaling factorsvalue in random tests and the graphic evaluation by means are evaluated to reduce the dispersion encountered in normal- -

of probability system. Examples of application of statistical ized spectral ordinates. The scaling factors comprise two - "methods are given, e.g., propagation of random errors, major groups, one based on ground motion data, and the

other on response quantities. Within the group based onground motion values are the integrals of the squared acceler-ation, velocity, and displacement, and the associated root-

square, mean-square, and root-mean-square motions. In-DYNAMIC TESTS cluded within the group based on response quantities are the

spectrum intensity and the mean Fourier amplitude. The __..

scaling parameters are evaluated statistically using response - -

spectra for elastic, elastoplastic, and bilinear hysteretic - . -

84-2806 systems, computed from a set of twelve representative earth- - " . ---

Measuring Methods and Facilities in the Development quake recordings. The results show that a three parameter

Sector of Automobile Exhaust Mufflers (Messaystem system of spectrum intensities, computed within low, me- - -

dium, and high frequency regions, may provide a betterin der Entwicklung von Automobilschalldimpfem) means of scaling earthquake response spectra. Significant SP. Zacke reductions in dispersion may be realized if elastic spectraSchlierbacher Str. 62, D-7321 Albershausen, Ger- are normalized by the spectrum intensities rather than the

many, MTZ Motortech. Z., 45 (6), pp 239-243 (June peak ground motions. The spectrum intensities also reduce1984) 5 figs, 3 refs the scatter for normalized inelastic spectra, for low to moder-(In German) ate displacement ductilities.

- S

Key Words: Exhaust systems, Mufflers, Test facilities, Mea-suring instruments, Computer-aided techniques

DIAGNOSTICSThe rather craftman-like construction of exhaust mufflers (Also see No 2814)as practiced in former times has turned to a sophisticated . ']technology due to the growing environmental consciousnessand resulting legal standards, the increased demands for 9comfort by the drivers and the pressure to save fuel on the 84-2808one hand and to the immense advances in the engine con- The Condition Monitoring of Rolling Element Bear-struction sector and the ever increasing range of models inoffered by the automobile industry on the other hand.Now as before, one cannot dispense with experiments when J. Mathew and R.J. Alfredsondeveloping automobile exhaust mufflers. A vehicle test J. Mathew and Associates, Endeavor Hills, Victoria, . .

63

I. - - -, . -- - . -- . . - -- - - - - - - - - - - - - - - - - - - - - - - - - - -

6......................... -

Australia, J. Vib., Acoust., Stress, Rel. Des., Trans. of workpiece quality are observed when the grinding wheel

ASME, 106 (3), pp 447-453 (July 1984) 8 figs, 39 unbalance is on the increase. However, various data on the " -

refs qualitative influence of wheel unbalance on the realizationof the grinding process occur. In this paper a theoretical -

explanation of the influence of wheel unbalance on the SKey Words: Diagnostic techniques, Bearings, Rolling contact dynamics of grinding, as well as the course and results of

bearings, Vibration analysis investigations proving theoretical considerations, are de-

scribed.A brief review on techniques of machine condition moni-toring is presented followed by a description and results of

a study involving the monitoring of vibration signatures ofseveral rolling element bearings with a view to detect in-cipient failure. The vibration data were analyzed and several

parameters were assessed with regard to their effectiveness MONITORINGin the detection of bearing condition. It was found that

all the parameters were of some value depending on thetype of bearing failure encountered.

84-2811Acoustic Emission Monitoring of Corrosion Fatigue SCrack Growth in Offshore SteelC. Thaulow and T. Berge

84-2809 Div. of Materials and Processes, Sintef, 7034 Trond-Troubleshooting In-Plant Equipment with Testing heim-NTH, Norway, NDT Intl., 17 (3), pp 147-153and Analysis (June 1984) 12 figsG.F, Mutch and R. Russell .GE-CAE International, Milford, OH, S/V, Sound Key Words: Monitoring techniques, Acoustic emission, -

Vib, 18 (6), pp 26-30 (June 1984) 18 figs Corrosion fatigue, Off-shore structures

A research and development program has been carried outKey Words: Diagnostic techniques. Coal handling equipment to establish relationships between corrosion fatigue crack

growth in offshore steel qualities and acoustic emission. -A general approach to solving noise, vibration or failure Laboratory experiments on small-scale specimens and wide .problems in installed process machinery is reviewed. The plates have shown that when a certain combination of cracktechni jes are applied to a coal crusher that generated un- size and crack surface corrosion deposit thickness has beenacceptable levels of vibration. Analyses of the structure and reached, high acoustic emission event rates, in the range ofimplementation of recommended modification reduced the 10-40 events per fatigue cycle, are recorded. The mainmachinery vibration to satisfactory levels, activity is recorded on rising load, generated from crack

surface activity, e.g., secondary emission. -

BALANCING

84-2812

84-2810 Acoustic Emission Transducers for the Vibration . "

Some Problems Connected with Balancing of Grind- Monitoring of Bearings at Low Speeds Sing Wheels P.D. McFadden and J.D. Smith

G. Gawlak Univ. Engrg. Dept., Cambridge, UK, IMechE Proc., -.

The T,chnical Univ. of Po/nan, The Inst. of Mech. 198 (8), pp 127-130 (1984) 4 figs, 3 refs

Engrq. Po/nan, Pnland, J. Engrg. Indus., Trans.ASME, 106 (3). PI) 233-236 (Aug 1984) 5 fiqs, Key Words: Monitoring techniques, Acoustic emission,

8 refs Rolling contact bearings, Bearings

The use of acoustic emission transducers for the vibrationKey Words: Balancing techniques, Grinding machinery monitoring of rolling element bearings at low speeds is '.

explored. The frequency response and the base strain andIn most publications, the unanimous opinion prevails that an bending sensitivities of the transducers are shown to be ..- -..-

increase of grinding machine vibration as well as deterioration important.

64

• .. .. .

-,.-.-..,.......... ---..... -... > .... -... ",..... .... "., . ..-" .... " ' .'-> .""" . .-- ""' "• °. e ., e,=.o V""J " " o"*. °* " ."". *= o**. "* , ". . . . ."".. . . . .... . . . . . .'.,.. . . . . . ... "• *- "." . , -, ".**''.. .* .° . "" ** ""o % " .,.., .',= _',. €.,: -_', ._ ., .' _'....' ', '. , ,., . ., , .... .... _ .... . ..... .. ... . .. C -' .',L .L' :,"";,''. . ... "...,'-,.. .''.. .,.. . .,..-."-. .,.. .. '. ."

. ,. . .- - ".- .-V

84-2813 teristics, dynamic stress intensity factors, and Rayleigh wave

Experimental Observation of the Dynamic Behavior transmission and reflection coefficients, for a range of

of Noncontacting Coned-Face Mechanical Scalb geometrical parameters.

I. Etsion and I. ConstantinescuTechnion, Haifa, Israel, ASLE, Trans., 27 (3), pp

263-270 (July 1984) 11 figs, 2 tables, 5 refs

Key Words: Monitoring techniques, Seals, Alignment 84-2815

The dynamic behavior of a coned-face noncontacting seal FEM Subelements Conserve Computer Resources

is experimentally observed by means of three proximity T. Havas Sprobes monitoring the motion of the flexibly mounted Lockheed Missiles & Space Co., Palo Alto, CA, Mach.

stator. The various tilts of the stator are analyzed and the Des., pp 83-86 (July 26, 1984) 5 figsrelative misalignment between stator and rotor is found. The

effects of both the rotor runout and the flexible support

on the relative misalignment are discussed. The tests demon- Key Words: Finite element technique

strata both stable and transition to unstable modes of seal

operation. Reasons for failure and other phenomenon during A technique for defining repeating subassemblies of a struc- .

stable seal operation are explained. ture, storing them off-line on computer disk memory, and

reusing it over and over in model building, thus reducing thesize of the finite element matrix, is described.

ANALYSIS AND DESIGN :84-2816The Loading-Frequency Relation of Linear Con-

ANALYTICAL METHODS servative Systems via a Direct Energetic (Action)(Also see No. 2773) Method

J.G. Papastavridis

Georgia Inst. of Tech., Atlanta, GA 30332, J. Sound

84-2814 Vib., 94 (2), pp 223-233 (May 22, 1984) 16 refs

Diffraction of Elastic Waves by a Sub-Surface Crack(ln-Plane Motion) Key Words: Eigenvalue problems, Linear systems

J.H.M.T. van der Hijden and F.L. Neerhoff This paper presents alternative proofs of the well-known

Dept. of Electrical Engrg., Lab. of Electromagnetic strict negative monotonicity and convexity properties of the

Res., Delft Univ. of Tech., P.O. Box 5031, 2600 GA fundamental frequency-load pair curve of the pure eigen-

Delft, The Netherlands, J. Acoust. Soc. Amer., 75 problem of free vibrations/buckling of linear conservative

(6). pp 1694-1704 (June 1984) 18 figs, 1 table, 18 systems subject to a single loading parameter, by studyingthe first and second order variations of the system's Hamil- ' '

refs tonian action (over the fundamental or highest eigenperiod),

as one moves along the fundamental eigenpair curve.Key Words: Cracked media, Wave diffraction, Elastic waves,Diagnostic techniques, Crack detection

A rigorous theory of the diffraction of time-harmonic elasticwaves by an arbitrarily oriented, cylindrical, stress-free crack

of finite width embedded in a semi-infinite elastic medium ispresented. The incident wave is taken to be either a P wave, 84-2817an SV wave, or a Rayleigh wave. The resulting boundary- Dynamic Analysis of Structures Using Lanczos Co-value problems for the unknown jump in the particle dis- ordinatesplacement across the crack are solved by employing theintegral-equation method in combination with the Galerkin B. Nour-Omid and R.W. Clough

method. Numerical results are presented in the form of Center for Pure and Applied Mathematics, Univ. of

scattering cross sections, normalized power scattering charac- California, Berkeley, CA 94720, Earthquake Engrg.

65

. - - .--- - - - - - - - - - - - - -

.. .. .... ..- .... .. . .. .. .,--.- -..- ,- -,..•-..-.- - - .- -.. ,,.- -........-...--..- . ....-..--.- - , ..-,- .. -...- -,..-..- ..-.- .-.,-. ,.-

-- - - - - - - - --.- . .%,,. ........ ..., . . .. ,---,' .. , " . ....... • - - - - -- ,", - ,- - .- - , % % " . .'."." . ,. "." ', .",

Struc. Dynam., 12 (4), pp 565-577 (July/Aug 1984) of linear systems is introduced with the result that the4 figs, 1 table, 12 refs convolution integral can be converted into ordinary integrals.

Key Words: Lanczos method

A procedure for deriving the Lanczos vectors is explained andtheir use in structural dynamics analysis as an alternative tomodal co-ordinates is discussed. The vectors are obtained by 84-2820an inverse iteration procedure in which orthogonality isimposed between the vectors resulting from successive itera- A New Numerical Procedure for Symmetric Eigen-tion cycles. Using these Lanczos vectors the equations of value Problemsmotion are transformed to tridiagonal form, which provides I. Levitfor a very efficient time-stepping solution. The effectiveness Tel-Aviv Univ., Ramat-Aviv, Israel, Computer Struc.,of the method is demonstrated by a numerical example. 18 (6), pp 977-988 (1984) 3 figs, 7 tables, 15 refs

Key Words: Numerical analysis, Eigenvalue problem

84 2818 A numerical solution procedure for solving standard sym- •

Dynamic Response Analysis of Linear Structural metric eigenvalue problems is presented. The solution isSystems Subject to Component Changes based on a sequence of one dimensional minmax stages andA.R. Kukreti and C.C. Feng is capable of extracting eigenpairs in either decreasing or

increasing orders. Generalized symmetric eigenvalue problems

Univ. of Oklahoma, Norman, OK 73069, Computer are transferred to standard form and solved using the same

Struc., 18 (6), pp 963-976 (1984) 9 figs, 1 table, algorithm.21 refs

Key Words: Substructuring methods, Transient response,Linear systems, Buildings, Multistory buildings

A method of analysis is developed for determining transient 84-282"responses of large multiply-connected structural systems Af R g r N esubjected to changes of structural components. A dynamic A Method for Reducing the Order of Nonlinearsystem is divided into two subsystems: the support which Dynamic Systemsremains unaltered and the branch which is liable to change. S.F. Masri, R.K. Miller, H. Sassi, and T.K. CaugheyThe response characteristics of an original system are used Univ. of Southern California, Los Angeles, CA - -

as a basis for evaluating the new response of the altered 90089-0242, J. Appl. Mech., Trans. ASME, 51 (2),system. The responses of the support interface coordinates - "(2),due to external excitations on it are called base motion. pp 391-398 (June 1984) 11 figs, 26 refsThe method is applied to a 16-story building rigid frame Smodel. The methods give response results comparable with Key Words: Reduction methods, Multidegree of freedomthe conventional integrated system analysis. Approximations systems, Nonlinear systems, Condensation method, Non-due to modal truncation are the same as component mode parametric identification techniquesubstitution method.

An approximate method that uses conventional condensa- ."

tion techniques for linear systems together with the non-parametric identification of the reduced-order model gen-eralized nonlinear restoring forces is presented for reducingthe order of discrete multidegree-of-freedom dynamic sys-

The Gate Function Response Method in Analysis of tems that possess arbitrary nonlinear characteristics. The . " "

Linear Systems utility of the proposed method is demonstrated by con-Du Qingxuan sidering a redundant three-dimensional finite-element model

J. of China Railway Society, 5(4), pp 22-29 (1983) half of whose elements incorporate hysteretic properties. . "

CSTA No. 625.1-83.25 A nonlinear reduced-order model, of one-third the order of -

the original model, is developed on the basis of widebandstationary random excitation and the validity of the reduced-

Key Words: Linear systems, Time domain method order model is subsequently demonstrated by its abilityto predict with adequate accuracy the transient response

In this paper, the unit game function is defined and the of the original nonlinear model under a different nonsta- . 'gate function response method in the time-domain analysis tionary random excitation.

66

• 0% ,=

.....................................................................................

84-2822 Key Words: Stochastic processes, Load coincidence meth-

The Origin of Stability Indeterminacy in a Symmetric od

Hamiltonian The problem of evaluating the probability that a structureM.R. Hyams and L.A. Month becomes unsafe under a combination of loads over a given S

Dept. of Mech. Engrg., Univ. of California, Berkeley, time period is addressed. The loads and load effects are

CA 94720, J. Appl. Mech., Trans. ASME, 51 (2), pp modeled as either pulse (static problem) or intermittentcontinuous (dynamic problem) processes. The load coinci-dence method is extended to problems with both nonlinear

limit states and dynamic responses. Results are compared . .Key Words: Stability, Hamiltonian principle with other methods, namely, methods based on upcrossing .

rate, simpler combination rules and Monte Carlo simulation. SThe stability and bifurcation of periodic motions in a sym- It is found that the load coincidence method is a versatilemetric two-degree-of-freedom Hamiltonian system is studied method for load combination of many types. It generallyby a reduction to a two-dimensional action-angle phase gives conservative results with good accuracy.

plane, via canonicO' perturbation theory. The results areused to explain why linear stability analysis will alwaysbe indeterminate for the in-phase mode in a class of couplednonlinear oscillators.

DESIGN TECHNIQUES

84-2823 84-2825

Dynamics of Gyroelastic Continua Computer-Aided Design of Control Systems DynamicG.M.T. D Eleuterio and P.C. Hughes Compensation

Univ. of Toronto, 4925 Dufferin St., Downsview, He Xungui and Chen XianweiOntario, Canada M3H 5T6, J. Appl Mech., Trans Acta Automatic Sinica, 9 (4), pp 253-259 (1983)ASME, 51 (2), pp 415-422 (June 1984) 6 figs, 7 refs CSTA No. 629.8-83.40

Key Words: Gyroelastic properties, Continuum mechanics Key Words: Design techniques, Computer-aided techniques,Frequency domain method

This paper introduces the idea of distributed gyricity, in

which each volume element of a continuum possesses an This paper presents a computer-aided design method forinfinitesimal quantity of stored angular momentum. The linear time-invariant system compensation in frequency

continuum is also assumed to be linear-elastic. Using operator domain. It can be applied to the compensation for controlnotation, a partial differential equation is derived that systems containing different origin poles, real zeros, realgoverns the small displacements of this gyroelastic contin- poles, and complex poles. Lead, lag, and lead-lag compensa-uum. Gyroelastic vibration modes are derived and used as tions under given performance requirement can be achieved.

basis functions in terms of which the general motion can be The design result of the compensated parameters can be

expressed. A discretized approximation is also developed printed by the computer. It can also print the time response

using the method of Rayleigh-Ritz. The paper concludes curves and performance for both the original systems andwith a numerical example of gyroelastic modes. the compensated systems through computerized analysis, if

necessary. Satisfactory results were obtained in many practi-cal cases.

STATISTICAL METHODS

COMPUTER PROGRAMS

84.2824Stochastic Combination of Load EffectsH.T. Pearce and Y. K. Wen 84-2826

Univ. of Illinois at Urbana-Champaign, Urbana, IL Development of a Simplified Procedure for Cyclic

61801, ASCE J. Struc. Engrg., 110 (7), pp 1613-1629 Structural Analysis(July 1984) 11 figs, 30 refs A. Kaufman

67

-0 . ...

ml * . " '.°.0°. 0.° ° . °°• ° °- --.- --- - - --° ° . -°° . " °.- ." . .-. - . . "°° .-. '. °. °. . " . .. °.° . .w °. 0 .oe. % ..°.° ° .° . ,- o. -°. - - -. .. _ ° . ° . . 0 . . . •.. ,.. . . ° . . . - - . .° -. . . . •..•. o . . .

NASA Lewis Res. Ctr., Cleveland, OH, Rept. No. Key Words: Computer programs

E-1855, NASA-TP-2243, 20 pp (Mar 1984)N84-20878 Three packages, written in PASCAL, that implement dy-

namic strings and ASCII file I/O in a structured way on CDC -

Cyber computers are described.Key Words: Computer programs, Cyclic loading

Development was extended of a simplified inelastic analysiscomputer program for predicting the stress-strain history atthe critical location of a thermomechanically cycled structure 84-2829from an elastic solution. The program uses an iterative andincremental procedure to estimate the plastic strains from the AUTDYN -- A Digital Simulation Computer Programmaterial stress-strain properties and a plasticity hardening for the Handling Dynamics of Passenger Cars - Part 2model. Creep effects can be calculated on the basis of stress (AUTDYN -- ein digitales Simulationsrechenpro-relaxation at constant strain, creep at constant stress, or a gramm fiir die Fahrdynamik von Personenkraftwagencombination of stress relaxation and creep accumulation. -- Teil 2)Good agreement was found between these analytical results F. -"e.m.nand nonlinear finite-element solutions for these problems. F. UffelmannThe simplified analysis program used less than 1 percent of Kammuhlweg 9, 8074 Gaimersheim, Germany, Auto-the CPU time required for a nonlinear finite-element analysis. mobiltech. Z., 86 (5), pp 243-246 (May 1984) 11

figs(In German)

Key Words: Computer programs, Automobiles, Ride dy-

84-2827 namics

Analytical and Experimental Investigation of Bird This paper reports on the new AUTDYN vehicle model.

Impact on Fan and Compressor Blading The paper reports on steering system, tires, braking system,A.F. Storace, R.P. Minner, and R. Ravenhall engine/transmission drive train, road surface and aerody-General Electric Co., Cincinnati, OH, J. Aircraft, namics. The initial results of computation and comparisonsG e Electric520527(July1984) C9 C ai H,1. iraft, with test measurements are presented in conclusion to show

21 (7), pp 520-527 (July 1984) 19 figs, 14 refs the applicability and validity of the model.

Key Words: Blades, Fan blades, Fans, Bird strikes, Computerprograms"-.-. .'

An analytical design tool and structural design criteria have GENERAL TOPICS : :been developed to assess end improve the foreign object GENERAL'TOPI.Sdamage tolerance of turbine engine fan and compressorblading. The analytical method is based on a three-dimen-sional finite element computer code that incorporates aninteractive bird-loading model. The computer code and TUTORIALS AND REVIEWSdesign criteria provide a systematic transient-structuralanalysis approach that will aid in the design of structurallyefficient, impact damage-resistant blading.

84-2830Some Dynamical Aspects of Army Missile Systems

J.J. Ri:hardsonU.S. Army Missile Command, Redstone Arsenal, AL, .-. '

Shock Vib. Bull., No. 54, Pt 1. pp 43-53 (June 1984)84-2828 17 fi(Is (Proc, Shock Vib. Syrup, Oct 18-20, 1983,Pascal Packages for ASCII File IO and CDC and 1 i (P .hk i S ,Ot 019

Dynai Strings Jet Propulsion Lab., Pasadeiia, CA. Spons. SVIC, . . :W.nmi Sndgersen Naval Rus. Lab., Washington, D.C.)W. VandeneerstenPhysics Lab. RVO-TNO, The Hague, The Nether-

lands, Rept. No. PHL-1983-18, TDCK-77992, 47 pp Key Words: Missiles

(May 1983) The great diversity of size, employment, and flight param-

N84-22285 eters of army missile systems yield an accordingly diverse

68

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set of dynamics problems. It is the aim of this paper to NTIS, Springfield, VA, 136 pp (May 1984)provide some indication of the range of these probelms. PB84-865633

A few general remarks are followed by examples taken

from recent experiences. Key Words: Aerodynamic loads, Flutter, Blades, Bibliog-

raphies 4

This bibliography contains citations concerned with designand performance relative to aerodynamic vibration. Among ;

° '

BIBLIOGRAPHIES the topics discussed are torsion blade flutter; vibrationgenerated by rudders, rotor blades, panels and air foils; .

vortex shedding; load control; and helicopter gust response

flutter. Aircraft vibrational analyses by means of analog

84-2831 computer simulation, auto-flight control systems, and struc-tural dynamics of aircraft are included with consideration

Vibrational Analysis in Aerodynamics. 1972 - April. for flight vehicle vibration control and reduction. (This

1984 (Citations from the International Aerospace updated bibliography contains 157 citations, 13 of

Abstracts Data Base) which are new entries to the previous edition).

II

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ZEITSCHRIFT FUR FLUGWISSENSCHAFTEN TURBOMACHINERY SYMPOSIUM(Z. Flugwlaa.) (Turbomacinery Symp.)

DFVLR Gas Turbine Labs.,D-3300 Braunschweig Texas A&M UniversityF lughafen, Postfach 3267, W. Germany Collage Station, TX 77843

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ABSTRACT CATEGORIES

MECHANICAL SYSTEMS Tires and Wheels Vibration Excitation- Blades Thermal Excitation

Rotating Machines BearingsReciprocating Machines BeltsPower Transmission Systems GearsPea Triansmisson g SysteClutches MECHANICAL PROPERTIESMetal Working and FormingCopigIsolation and Absorption Couplings

Electromechanical Systems Fasteners DampingOptical Systems Linkages Fatigue -Materials Handling Equipment Valves Elasticity and Plasticity

Seals Wave Propagation

Cams

STRUCTURAL SYSTEMSEXPERIMENTATION

STRUCTURAL COMPONENTSBridgesBuildings Measurement and Analysis •Towers Strings and Ropes Dynamic TestsFoundations Cables Scaling and ModelingUnderground Structures Bars and Rods DiagnosticsHarbors and Dams Beams Balancing - -

Roads and Tracks Cylinders MonitoringConstruction Equipment Columnsand

"

Arche"

Pressure Vessels Frames and Arches.Power Plants Membranes, Films, arid WebsOff-shore Structures Panels ANALYSIS AND DESIGN

Plates *.. ."-

Shells . .-Rings Analogs and AnalogPipes and Tubes Computation -

VEHICLE SYSTEMS Ducts Analytical Methods

Building Components Modeling TechniquesGround Vehicles Nonlinear AnalysisShips Numerical MethodsAircraft Statistical MethodsMissiles and Spacecraft EParameter IdentificationELECTRIC COMPONENTS Mobility/Impedance Methods

Optimization TechniquesControls (Switches, Circuit Breakers) Design Techniques SMotors Computer Programs

BIOLOGICAL SYSTEMS GeneratorsTransformers

Human RelaysAnimal Electronic Components GENERAL TOPICS

Conference Proceedings STutorials and Reviews

MECHANICAL COMPONENTS DYNAMIC ENVIRONMENT Criteria, Standards, andSpecifications

Absorbers and Isolators Acoustic Excitation Bibliographies . . . -

Springs Shock Excitation Useful Applications

77

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~~..... ... . ........ .. .. .........-.-v ...-.-......... .. . . .. . . ..

..... ... ; ". ..

TECHNICAL NOTES

V.J.E. Stark Chyi Hwang and Yen-Ping ShihA Flutter Eigenvalue Program Based on the Newton- Model Reduction Via Laguerre Polynomial TechniqueRaphson Method J. Dynam. Syst., Meas. Control, Trans. ASME, 105AIAA J., 22 (7), pp 993-995 (July. 1984) 1 fig, 5 refs (4), pp 301-306 (Dec 1983) 3 figs, 1 table, 9 refs .0

H.R. Aggarwal R. Stanway

The Calculation of Transonic Rotor Noise Journal Bearing Identification under Operating " . "Conditions , .'i

AIAA J., 22 (7), pp 996-998 (July 1984) 3 figs, 8 refsJ. Dynam. Syst., Meas. Control, Trans. ASME, 106(2), pp 178-182 (June 1984) 3 figs, 8 refs

M. Ahmadian and D.J. InmanClassical Normal Modes in Asymmetric Nonconserva- Fan-Chu Kung and Hua Leetive Dynamic Systems Solution and Parameter Estimation in Linear Time- -

AIAA J., 22 (7), pp 1012-1015 (July 1984) 8 refs Invariant Delayed Systems Using Laguerre Poly-

nomial Expansion .

J.S. Tomar and A.K. Gupta J. Dynam. Syst., Meas. Control, Trans. ASME, 105 - S

Thermal Effect on Axisymmetric Vibrations of an (4), pp 297-301 (Dec 1983) 19 refs

Orthotropic Circular Plate of Variable ThicknessAIAA J., 22 (7), pp 1015-1017 (July 1984) 2 figs, M.D. Croker

7 refs Determination of Displacement by Double Integra-tion of Accelerometer SignalsJ. Sound Vib., 93 (4), pp 598-600 (Apr 22, 1984) ..

C. Shangchow 3 figs, 1 refResponse of a Cylindrical Shell to the Sudden Break-down of a Ring Stiffener Y. NaritaAIAA J., 22 (7), pp 1018-1020 (July 1984) 3 figs, Note on Vibrations of Point Supported Rectangular -

5 refs Plates "

J. Sound Vib., 93 (4), pp 593-597 (Apr 22, 1984) 0K.K. Raju and G.V. Rao 2 figs, 2 tables, 15 refsA Note on Large Amplitude VibrationsComputer Struc., 18 (6), pp 1189-1191 (1984) N.A. Halliwell, C.J.D. Pickering, and P.G. Eastwood2 tables, 14 refs The Laser Torsional Vibrometer: A New Instrument

J. Sound Vib., 93 (4), pp 588-592 (Apr 22, 1984)

H. Dosanjh and D.J. Johns 3 figs, 3 refs

Response to Wind of a Model Chimney with Added R.E."MickensDamping ~~R.E. Uickens i. .'Comments on the Method of Harmonic Balance

Earthquake Engrg. Struc. Dynam., 12 (3), pp 427- J. Sound Vib., 94 (3), pp 456-460 (June 8. 1984)430 (May/June 1984) 2 figs, 2 tables, 3 refs 11 refs

H. Matsuo and K. Matsuo J. Jiang and B. K. DonaldsonA Nonlinear Analysis of the Cushion Stability of Extended Field Method Numerical Results for Pulse -'--

*Slowly Oscillating ACV's Loaded Thin PlatesJ. Aircraft, 21 (7), pp 539-541 (July 1984) 2 figs, J. Sound Vib., 94 (3), pp 453-455 (June 8, 1984)9 refs 1 table, 4 refs

78

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FEATURE ARTICLES

ISSUE PAGES

Flack, R.D. and Allaire, P.E. 1 5-14Lateral Forces on Pump Impellers: A Literature Review

Barrett, L.E. 2 3-13Turbulent Flow Annular Pump Seals-- A Literature Review

Adams, M.L. 3 3-6Nonlinear/Transient Rotor Dynamics Analysis

Gopalakrishnan, S. and Usui, Y. 4 3-10Critical Speed of Centrifugal Pumps

Massoud, M. 5-14Impedance Methods for Machine Analysis: Modal Parameters ExtractionTechniques

DiMaggio, F.L. 6 3-9

Dynamic Response of Shells Containing Fluid

Flack, R.D. and Allaire, P.E. 7 3-12Literature Review of Tilting Pad and Turbulent Hydrostatic JournalBearings for Nuclear Main Coolant Pumps ' -

de Silva, C.W. 8 3-10Hardware and Software Selection for Experimental Modal Analysis

Roberts, J.B. 9 3-14Techniques for Nonlinear Random Vibration Problems

Romilly, N. 10 3-7 . - -

Sound Transmission in Ducts

De, Sasadhar 11 3-24 -.

On Seismic Waves

Laura, P.A.A. 12 3-7Applications of the Conformal Mapping Method to the Solution ofMechanical Vibrations Problems

79

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.""- '° " "- " -'-. ' -' .* -.". "-. .-- -'*. . .-. ".".* -"." -" " "" "" """" . ""-" '" . . . . . . ' " '"" " ' '

LITERATURE REVI EWS

ISSUE PAGES

Etter, P.C. 1 17-23Underwater Acoustic Modeling Techniques 0

Jennings, A. 1 25-33Eigenvalue Methods for Vibration Analysis 11

Rao, D.K. 2 15-23Torsional Vibration of Crankshafts in Reciprocating Machines 0

Triantafyllou, M.S. 3 9-17Linear Dynamics of Cables and Chains

To, C.W.S. 4 13-33The Response of Nonlinear Structures to Random Excitation 0

Nakra, B.C. 5 17-22Vibration Control with Viscoelastic Materials - Ill

Wittlin, G. 6 11-21Aircraft Crash Dynamics Research Update -

*Huseyin. K. 7 15-22Vibrations and Stability of Mechanical Systems: Ill

Ramamurti, V. and Balasubramanian, P. 8 13-28

Analysis of Turbomachine Blades - A Review S

GangaRao, H.V.S. 9 17-22Research in Vibration Analysis of Highway Bridges

Mazumdar, J. 10 9-15

A Review of Approximate Methods for Determining the VibrationalModes of Membranes

Soltis, L.A. 11 27-32Seismic Performance of Low-Rise Light-Framed Wood Buildings

Ramamurti, V. and Ganapathi Rao, D. 12 9-13Machine Tool Vibrations - A Review

80 '

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BOOK REVIEWS

Adams, M.L., Jr., ed., Rotor Dynamic Instability, ASME, New York, NY, 1983; Reviewed by H. Saunders,

* ~SVD, 16 (10), pp 16-17 (Oct 1984). . -

Battermann, W. and K6hler, R., Elastomere Federung, Elastische Lagerungen (Elastic Springs, Elastic Supports),

Verlag W. Ernst & Sohn, Berlin, Mnchen, Germany, 1982 (in German); Reviewed by K. Hgusler, SVD, 16 (4),

pp 35-36 (Apr 1984).

Bell, L.H., Industrial Noise Control, Marcel Dekker, Inc., New York, NY, 1982; Reviewed by R.J. Peppin, SVD, "

16 (1), p 34 (Jan 1984).

Bloch, H.P. and Geitner, F.K., Practical Machinery Management for Process Plants, Vol. 2, Machinery Failure

Analysis and Troubleshooting, Gulf Publishing Co., Houston, TX, 1983; Reviewed by J.S. Mitchell, SVD, 16 (11),

pp 34-35 (Nov 1984).

Broch, J.T., Principles of Analog and Digital Frequency Analysis Tapier Publ., Norwegian Institute of Technol- . -

ogy, Trondheim, Norway, 1981; Reviewed by M. Barasch, SVD, 16 (3), pp 19-20 (Mar 1984). 0

Bykhovsky, 1.1., Fundamentals of Vibration Engineering, Robert E. Krieger Pub. Co., Huntington, NY, 1980;

Reviewed by T.S. Sankar, SVD, 16 (3), pp 21-22 (Mar 1984).

Caddell, R.M., Deformation and Fracture of Solids, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1980; Reviewed

by K.E. Hofer, SVD, 16 (5), pp 25-26 (May 1984). ,,.. -

Cempel, C., Podstawy Wibroakustycznej Diagnostyki Maszyn (Fundamentals of Vibro-Acoustical Diag,,ustics of .

Machines), Wydawnictwa Naukowo-Techniczne, Warsaw, Poland, 1982 (in Polish); Reviewed by A. Muszynska, " "'SVD, 16 (6), pp 26-27 (June 1984).

Chatfield, C., The Analysis of Time Series: An Introduction, 2nd Edition, reprinted, Methuen, Inc., New York, NY, 1982; Reviewed by H. Saunders, SVD, 1_6(4), pp 37-38 (Apr 1984).

Crocker, M.J. and Kessler, F. M., Noise and Noise Control, Vol. II, CRC Press, Inc., Boca Raton, FL, 1982; Re-viewed by R.J. Peppin, SVD, 16 (3), pp 20-21 (Mar 1984).

Dikmen, M., Theory of Elastic Shells, Pitman Publishing, Inc., Marshfield, MA, 1982; Reviewed by H. Saunders, 0SVD, 16 (11), pp 36-37 (Nov 1984).

Eicher, N., Einfuhrung In Die Berechnung Parametererreg ter Schwingungen, Technische Universitat Berlin, Berlin,Germany, revised edition, 1981 (in German); Reviewed by S.M. Holzer, SVD, 16 (1), pp 35-36 (Jan 1984).

Elishakoff, I., Probabilistic Methods in the Theory of Structures, John Wiley & Sons, New York, NY, 1983; ,

Reviewed by H. Saunders, SVD, 16 (10), pp 17-18 (Oct 1984).

Englekirk, R.E. and Hart, G.C., Earthquake Design of Concrete Masonry Buildings. Vol. 1. Response Spectra

Analysis and Earthquake Modelling Considerations, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1982; Reviewed byH Saunders, SVD, 16(9), pp 25-26 (Sept 1984).

81

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- . . . .. . . . . o . ° • , - , , ", % 'o° " '°." - *'.o * " * ". o* . . "° ° ° ' "°*% - ' °. - ' ' - " % ' '

Ewins, D.J. and Srinivasan, A.V., eds., Vibration of Bladed Disc Assemblies, ASME, New York, NY, 1983; Re-viewed by H. Saunders, SVD, 16 (9), pp 26-27 (Sept 1984).

Geckinli, C. and Yavuz, D., Discrete Fourier Transformation and Its Applications to Power Spectra Estimation,Elsevier Publishing Co., New York, NY, 1983; Reviewed by L.Y. Bahar, SVD, 16 (12), p 14 (Dec 1984).

Harker, R.J., Generalized Methods of Vibration Analysis, John Wiley & Sons, New York, NY, 1983; Reviewed by - ., -'

S. Doughty, SVD, 16 (3), pp 18-19 (Mar 1984).

Hickling, R. and Camel, M.M., eds., Engine Noise, Plenum Publishing, New York, NY, 1982; Reviewed by V.R.

Miller, SVD, 16 (8), p 31 (Aug 1984).

Huebner, K.H. and Thornton, E.A., The Finite Element Method for Engineers, John Wiley & Sons, New York, -

NY, 2nd Edition, 1982; Reviewed by H. Saunders, SVD, 16 (11), pp 35-36 (Nov 1984).

Irons, B. and Shrive, N., Finite Element Primer, Halsted Press, New York, NY, 1983; Reviewed by H. Saunders, -

SVD, 16 (8), p 32 (Aug 1984). 6

Kirk, C. L., ed., Dynamic Analysis of Offshore Structures -- Recent Developments, Gulf Publishing Co., Houston,

TX, 1982; Reviewed by H. Saunders SVD, 16 (4), pp 36-37 (Apr 1984).

Lapidus, L. and Pinder, G.F., Numerical Solution of Partial Differential Equations in Science of Engineering,John Wiley & Sons, New York, NY, 1982; Reviewed by H. Saunders, SVD, 16 (6), pp 22-23 (June 1984). 6

Larsson, L.H., ed., Advances in Elasto-Plastic Fracture Mechanics, Applied Science Publishers, Ltd., London,1980; Reviewed by K.E. Hofer, SVD, 16 (8), pp 29-30 (Aug 1984).

Lawrence, R., ed., Inter-Noise '83 - Noise Control: The International Scene, Noise Control Foundation, Pounh-keepsie, NY, 1983; Reviewed by J.H. Carey, SVD, 16 (12), pp 14-15 (Dec 1984).

Lee, J.H.S., Guirao, C M., and Grierson, D.E., eds., Fuel-Air Explosions, Proc. Intl. Conf., McGill Univ., Montreal, , 2-.--.

Canada, Univ. of Waterloo Press, Waterloo, Ontario, Canada, 1982; Reviewed by W.E. Baker, SVD, 16 (9), pp ".'- , -

24-25 (Sept 1984).

Lundin, K., Dynamic Mechanical Data of Non-Reinforced Plastics, Dept. of Technical Acoustics, Royal Institute , Oof Technology, Stockholm, Sweden, 1982; Reviewed by V.R. Miller, SVD, 16 (8), pp 30-31 (Aug 1984).

Macmillan, R.H., Dynamics of Vehicle Collisions, Inderscience Enterprises, Ltd., Channel Islands, UK, 1983;Reviewed by S. Davis, SVD, 16 (4), pp 34-35 (Apr 1984).

Merhaut, J., Theory of Electroacoustics, McGraw-Hill Book Co., New York, NY, 1982; Reviewed by A.J. Kali-nowski, SVD, 16 (1), pp 34-35 (Jan 1984).

Miller, H.B., ed., Acoustical Measurements: Methods and Instrumentation, Hutchinson Ross Publishing, Strouds-burg, PA, 1982; Reviewed by R.J. Peppin, SVD, 16 (7), pp 23-24 (July 1984).

Natke, H.G., Einfuhrung in Theorie und Praxis der Zeitreihen und Modalanalyse (Introduction to the Theory and -

Practice of Time Series and Modal Analysis), Friedrich Vieweg-Verlagsgesellschaft, Braunschweig/Wiesbaden,1983 (in German); Reviewed by R. Nordmann, SVD, 16 (9), pp 23-24 (Sept 1984).

Nigam, N.C., Introduction to Random Vibrations, MIT Press, Cambridge, MA, 1983; Reviewed by R.J. Peppin, ""

SVD, 16 (10), pp 18-19 (Oct 1984).

82

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Orr, W.G., Handbook for Industrial Noise Control, National Technical Information Service, Springfield, VA, -

1981; Reviewed by V.R. Miller, SVD, 16 (7), p 23 (July 1984).

Palm, W.J., Ill, Modeling, Analysis, and Control of Dynamic Systems, John Wiley & Sons, New York, NY, 1983; 0Reviewed by S.M. Holzer, SVD, 16 (10), pp 19-20 (Oct 1984).

Pandit, S.M. and Wu, S.M., Time Series and System Analysis with Applications, John Wiley & Sons, New York,NY, 1983; Reviewed by H. Saunders, SVD. 16 (12), pp 15-16 (Dec 1984).

Rao, S.S., The Finite Element Method in Engineering, Pergamon Press, Elmsford, NY, 1982; Reviewed by H. .Saunders, SVD, 16 (5), pp 24-25 (May 1984).

Ross, C.R.T., Computational Methods in Structural and Continuum Mechanics, John Wiley & Sons, New York, -

NY, 1982; Reviewed by R.A. Ibrahim, SVD, 16 (2), pp 28-29 (Feb 1984).

Rutherford, S.H., Meaningful Engineering Science, Mechanical Engineering Publications, Ltd., London, 1980; 6Reviewed by K.E. Hofer, SVD, 16 (5), p 27 (May 1984).

Sharpe, R.S., ed., Research Techniques in Nondestructive Testing, Vol. VI, Academic Press, Inc., London, 1983;Reviewed by S.E. Benzley, SVD, 16 (7), pp 25-26 (July 1984).

Shin, Y.S. and Au-Yang, M.K., eds., Random Fatigue Life Prediction, ASME, New York, NY, 1983; Reviewed byH. Saunders, SVD, 16 (5), pp 23-24 (May 1984).

Skalmierski, B. and Tylikowski, A., Stochastic Processes in Dynamics, Nijhoff Publishing Co., Boston, MA, 1982;Reviewed by R.A. Scott, SVD, 16 (7), pp 24-25 (July 1984).

Stanomir, D., The Physical Theory of Electromechanical Systems, Romanian Academy of Sciences, Bucharest, 01982 (in Romanian); Reviewed by M. Rades, SVD, 16 (2), pp 24-25 (Feb 1984).

Szymkowiak, E., Optimized Vibration Testing and Analysis, Institute of Environmental Sciences, Mt. Prospect,IL, 1983; Reviewed by H.C. Pusey, SVD, 16 (11), pp 33-34 (Nov 1984).

Valid, R., Mechanics of Continuous Media and Analysis of Structures, Series in Applied Mathematics and Mechan- _ics, Vol. 26, North-Holland Publishing Co., Amsterdam, 1981; Reviewed by R.A. Ibrahim, SVD, 16 (2), pp 25-27(Feb 1984).

Van Stijgeren, E., ed., Recent Advances in Pipe Support Design, ASME, New York, NY, 1982; Reviewed by . "H. Saunders, SVD, 16 (2), p 27 (Feb 1984).

Van Stijgeren, E., ed., Special Applications in Piping Dynamic Analysis, ASME, New York, NY, 1982; Reviewed -

by H. Saunders, SVD, 16 (2). pp 27-28 (Feb 1984).

Wempner, G., Mechanics of Solids with Applications to Thin Bodies, Martinus Nijhoff, The Hague, The Nether-lands, 1982; Reviewed by L.Y. Bahar, SVD, 1_6 (6), pp 23-24 (June 1984).

Wetzel, R.M., ed., Fatigue under Cor )lex Loading, Society of Automotive Engineers, Inc., Warrendale, PA,*1977; Reviewed by K.E. Hofer, SVD, o. (6), pp 24-26 (June 1984).

83

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. . . . . .. . - -

LIST of REVIEWERS

Abrate, S. Gopalakrishnan, S. Munjal, M.L.Adams, M. LJ.Gopalan, T.V. Muszynska, A.Agrawal, B.N. Greif, R. Nakra, B.C.Ali, R. Griffin, M.J. Nicholson, D.Allaire, P.E. H~usler, K. Nordmann, R.

*Arndt, R.E.A. Hobaica, E.G. Peppin, R.J.- .Attenborough, K . Hofer, K.E. Platzer, M.F.

Bahar, L.Y. Holmes, R. Plunkett, R.Baker, W.E Holzer, S.M. Popplewell, N.Barasch, M. Hundal, M.S. Pusey, H..Barrett, L. Huseyin, K. Rades, M.Beards, G.EF. Ibrahim, R.A. Ramamurti, V.Beltzer, A. gnaczak, J. Rao, D. K.

*BenzlIey, S. E. lwatsubo, T. Rao, J.S.Bernard, J.E. Jennings. A. Rao, S.S.Bert, G.W. Jensen, J.J. Reddy, J.N.Blanks, H.S. Johns, D.J. Rieger. N.E.

*Carey, J.H. Jones, D.IG. Roberts. J.B.Chang, G.H. Jones, N. Romilly, N.Chen, S.S. Kalinowski, A.J. Sankar, T.S.Cook, R.D. Kelly, J.M. Sathyamoorthy, M.Datta, S. K. Krajcinovic, D. Saunders, H.Davis, S. Lalanne, M. Scott, R.A.De, S. Leis, B.N. Sierakowski, R. L.DiMaggio, E.L. Leissa. A. Singh, R.D6kmeci, MGC. Lund, J.W. Soltis, L.Done, G.T.S. Malanoski, S. Spanos, PD.Doughty, S. Manolis, G.D. Srinivasan, V.Dubey, R.N. Massoud, M. Stadelbauer, D.Dungar, R. Matsuzaki, Y. Ting, E.G.Etsion, 1. Mazumdlar, J. To, G.W.S.

*Etter, P.C. McLean, D. Triantafyllou, M.Eawcett, J.N. Migliore, H. Vaicaitis, R.Elack, R.D. Miller, V.R. Vassilopoulos, L. -

GanqaRao, H.V.S. Milsted, M.G. Waberski, A.Genin, J. Mitchell, J.S. Watkinson, P.Gibson, REF. Mote, G.D. Wittlin, G.Ginsberg, J.H. Mulcahy, T.M.

84

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AUTHOR INDEX

-A- Anand, A .................... 936 Au-Yang, M.K ........... 267, 802Anderson, D ................. 787 Averill, R.D ................ 835Anderson, M.J ............... 884 Avltabile, P ............... 1133

Aanonsen, S............... 1770 Anderson, M.S.......... 567, 573 Avva, V.S.................. 2063Abdelhamid, M.K ..... 2571, 2614, Anderson, W.F .............. 2036 Awad, A.M .................. 1589

2615 Andersson, T ............... 1205 Awojobi, A.0 ............... 1853Abdul-Wahed, N ............. 2218 And........................306 Axlsa, F ............... 517, 881 " "'"Abel, A ...................... 86 Ando, T .................... 1685 Ayabe, T ................... 1612 ''Abrahams, 1. ............... 354 Ando, Y .................... 1162 Azevedo, J.R.T ............. 2642Abramowlcz, W .............. 302 Andrews, R.P ............... 2440 Azevedo, S ................. 2620Abt, S.R .................... 909 Andry, Jr., A.N ............ 1251 Aziml, S ................... 2500 SAchenbach, J.D... 200, 966, 1808 Aneja, I.A ................. 2150Acree, Jr., C.W ............ 1822 Anema, J ................... 2290Adachl, T ............. 495, 1824 Anger, H.H ................. 685 -B-Adams, F.G .................. 429 Angrill, F ................ 1765Adams, M ................... 1337 Annlgerl, B.S .............. 2296Adams, M.L ................. 1567 Ansarl, G.R ................. 815 Baba, S .................... 1422Adams, R.H ................. 1064 Ansarl, S ................... 804 Baber, T. T ................ 2771Adams, S.L ................. 1766 Ansell, R .................. 1009 Baboux, J.C ................ 2587 SAdams, W ................... 1996 Anstee, R.F.W ............... 287 Baca, T. J ............ 205, 2596Adelman, H.M ............... 2617 Antartls, A.D ............... 222 Bach, L .................... 1564Affenzeller, J ....... 1042, 2445 Antonopoulos-Domls, M ...... 2598 Bachrach, B.1 ............... 632Aggarwal, K.R ............... 510 Anuta, Jr., A.E ............ 2793 Bachschmld, N ........ 2143, 2152Agrawal, B.N ................ 173 Anwar, I .................... 590 2334Agrone, M ................... 240 Anzal, E .................... 672 Badl, M.N.M ................ 1728Ahlberg, L ................. 1839 Aral, H ........ 1410, 1411, 2189 Badle, A ................... 2482Ahmad, M.B ................. 1364 Aral, S .................... 1876 Badrakhan, F ................ 769Ahmadlan, M ................ 1288 Arakl, Y ................... 2109 Bagcl, C ............. 1292, 1500Ahuja, K.K .................. 888 Aranha, J.A.P ............... 269 Bagdoev, A.G ............... 2734Alda, T................... 2706 Ardayflo, D.D .............. 2125 Baggett, J.F................ 362AielIo, R.A ................. 493 Ar!I, S .................... 1565 Baglasna, K ................ 2093Ajima, T .................... 211 Ariga, M ................... 2658 Bailey, P.A ................ 1591Akay, A .......... 105, 690, 1727 Arln, K .................... 1033 Bailey, R.K ................. 911Akesson, B ................. 1318 Armenakas, A.E ....... 2713, 2715 Balnum, P.M ................ 2432Akgun, M .................... 997 Armentrout, R. I ............ 579 BajaJ, A.K ........... 1751, 2738 . .. .Aklmoto, T ................. 1022 Armor, A. F ................ 1007 Baker, W.E ..... 2046, 2112, 2626Akins, R.E .................... 5 Armstrong, P.J ............. 2036 Bakthavathsalam,T.N ......... 279Aktan, A.E ................. 1362 Arnold, W.L ................ 2344 Balan, F.S .................. 979.-.Akutsu, Y .................. 1569 Aronov, V ......... 940, 941, 942 Balasubramanlan, N ........... 14Alam, N .............. 2502, 2725 Arora, A ................... 2573 Balda, M ................... 2126Al Annaz, S.S .............. 1279 Arrowsmlth, D.K ............ 1550 Balena, F.J ................ 1386 - .Alberg, H .................. 2131 Arruda, J.R.F .............. 2341 Balendra, T .......... 1367, 1593Albershelm, S.R ......... 54, 467 Arslan, A.V ................ 1525 Balfour, G.P ............... 1098 - "Albrecht, P.. 253, 380, 2494 Aruga, K ................... 340 Ball, D.J................... 268Aldman, B ...... 1918, 1959, 1963 Asa!, M .................... 1374 Ballo, I ................... 1974Alem, N.M .................. 1962 Asaml, T7................... 1791 Balombin, J.R .............. 1416 .

Alemar, J.D ................. 392 Asano, K ................... 1585 Balsara, J.P .......... 925, 2536Alfaro-bou, E .............. 1388 Asano, N ............... 566, 716 Baltzer, O.J ................ 556Alfredson, R.J ....... 1460, 2808 Ashby, M.F ................. 2295 Ban, K ..................... 2179AI-Hassanl, S.T.S ........... 303 Asnanl, N.T .......... 2502, 2725 Banaszak, D ................ 2087Aijawelni, S.M .............. 648 Asquerlno, J.C.M ............ 195 Bandyopadhyay, K.K .......... 385Allalre, P.E ......... 1344, 2688 Asthelmer, J.P .............. 741 Banerjee, A.K .... 406, 656, 2619Allemang, R.J... 749, 1220, 1227 Astley, R.J................1454 Bannister, K.A............. 2508

1228, 1269, 1326, 1505 Asukal, M .................. 2479 Bannister, R.H ............ 2219Allen, R.D ................. 1373 Atkinson, D.B ................ 42 Bannister, R.W ............ 1465Allen, R.M ................. 2532 Atlurl, S.N .... 186, 1806, 2782 Bapat, C.N ........ 78, 178, 2485Alnakeeb, H.A.-R ............ 100 Attalla, I ................. 2393 Barber, P.W ................. 968Altes, J ................... 2654 Au, P ....................... 552 Barblero, D ................ 1680 9Alvarez, S................. 2480 Aubrum, J.N................ 2429 Bardlaux, M................ 1304Aly, W.Y ................... 1992 Auersch, L ................. 1817 Barlilet, R ................. 194Ambartsumlan, S.A .......... 2243 August, R .............. 502, 503 Barker, D.B ................. 961Amlet, R.K ............ 283, 1396 Auld, H.E .................. 1907 Barkve, T .................. 1770A,nli, F.................... 255 Auld, M. ................... 865 Barlow, J.................. 1104AnagnostIs, S .............. 1317 Austin, M.A ................ 1437 Barr, R.A ................... 359

85

IL~

........ . . ,. .

Barrett, L.E ............... 1688 Bennett, C.L ................ 388 Blume, J.A ................. 1757Barta, D.A .................. 884 Bennett, R.M ................ 531 Boardman, B.E .............. 1191Bartel, T.W ................. 750 Benson, D.A ................. 875 Bobone, R .................. 1747Bartels, P .................. 613 Benson, R.C ............ 326, 430 Bock, T .................... 1996

Barthe-batsalle, L .......... 417 Benvenutl, E ............... 2138 Bode, M .................... 2091

Bartholomae, R.C ........... 1943 Beoichinl, G.C ............. 2153 Bodur, I.N ................. 1298

Bartlett, M.D .............. 2173 Berengler, M ............... 1213 Bogacz, R ................... 652

Bartos, J.M .................. 64 Bergamaschl, S ............. 2239 Bogar, T.J ............ 171, 1575Barz, J .................... 1405 Bergan, P.G ................. 342 Bogdevlclus, M ............. 1886

Baseheart, T.M ............. 1778 Berge, T ................... 2811 Bohannan, W.R ............... 585Basharkhah, M.A ............ 2186 Berger, H .................. 1301 Bohmer, J .................. 1419

Basista, H ................. 1745 Berghaus, D.G ............... 745 Bolsson, C ................. 2716

Baskar, S .................. 2733 Bernante, R .......... 2152, 2200 Bojarskl, N.N ......... 743, 1818Bass, H.E ................... 713 Bernard, R.D ................ 360 Bokalan, A.R ......... 1433, 2407

Bastlaanse, J.C ............ 2113 Bernhard, R.J ........ 1106, 1176 Bolinger, J.W .............. 1348Basu, A.K .................. 1359 Berry, R.L .................. 829 Bollig, G ................... 390Batchelor, B. deV .......... 1123 Berryman, J.G ......... 740, 1241 Bolt, P.A .................. 1516

Bathe, K.-J ................. 944 Bert, C.W........ 394, 508, 2031 Bolton, A .................. 2359Batlna, J.T ................ 2768 Bertero, V.V .... 641, 1362, 1517 Bolton, M.D ................ 2521Batterson, J.G ............. 2668 Berthler, P ................... 2 Bolukbasr, A.0 ............. 2672Battls, J.C ................ 2529 Beskos, D.E .......... 1370, 1545 Bond, J.H .................. 1065Bau, H ..................... 2563 Bessho, M .................. 1613 Bonnecase, 0 ............... 1272 0Bauer, H.F ....... 98, 2351, 2556 Betts, W.S .................. 800 Bonthoux, C ................. 484Baumann, H.D ............... 1425 Betzlna, M.D ............... 1617 Book, D ..................... 908

Baumeister, K.J ............ 2632 Beuzlt, P .................. 1379 Booker, J.F ........... 852, 1994Bausch, H.P ................ 1093 Bezler, P ........ 345, 678, 1152 Borg, S.F ................... 922Baxter, S.M ................ 2749 Bhat, R.A .................. 1142 Bort, R.L ................... 511Baylot, J.T................ 2536 Bhat, R.B.. 1, 61, 62, 581, 2463 Bosln, D ................... 2649Bayo, E ..................... 440 Bhat, S.P .................. 2060 Bosnlk, J.R ................ 1553Bayo, E.P .................. 2648 Bhattl, M.H ................. 822 Boston, D.W ................ 1389 0Bazant, Z.P .......... 2065, 2354 Blcanlc, N .................. 413 Bouchard, M.P .............. 1069Beardmore, J.M ............. 1351 Bickerstaff, D.J ........... 1103 Boucher, R.F ............... 1556Beatty, M.F .......... 1691, 2679 Blelak, J .................. 1368 Bourassa, P ................ 1088Beatty, V.R................. 206 Blelawa, R.L............... 1861 Bourne, F.R................. 651Beaumont, P.W.R ............ 2295 Bierlng, H .................. 400 Bousek, R.R ................. 918 .-Bechrakls, N ............... 1583 Blgret, R ............. 761, 1285 Bowden, T.J ................ 1948Beck, J. .................. 2148 Biller, J.R ................. 802 Boyce, L ................... 1329 - -Becker, F ................... 131 Billings, S.A ............... 775 Boyce, M.P ............ 585, 1009Beckwlth, S.W .............. 2563 Blllington, D.P ............ 1733 Boyce, P.R ................. 1037Beddoes, T.S ............... 1928 BIly, M .................... 2056 Boyd, P.J ................... 461Beeler, R.M ................ 1689 Blngham, B.L................ 448 Brach, R ................... 2164Beermann, H.J ............... 821 Blnkhorst, H ................ 569 Brach, R.M ................. 1917 - "Behal, B L .................. 846 Blnh, V.G ................... 758 Brady, L ................... 2430Behrens, K ........... 2020, 2021 Blrac, C .................... 689 Bramer, A.J ................. 830

Belgelman, Z................ 844 Blrchmeler, J.E .... 1103, 1384 Brancaleoni, F ............. 2380Belner, L ................... 845 Blrman, V .................. 1782 Branco, C.M ................ 1200Belssner, K ................ 2535 Birss, V.1 ................. 2062 Brandeis, J.P .............. 1043Belek, H.T ................. 1657 Birth, M ................... 1044 Brandon, J.A ................ 225Bellveau, J.-G ............. 1088 Bissell, J .................. 636 Brannan, J.R ................ 707 - -

Bell, W.W................... 359 BJorno, L.................. 2270 Braschel, R................ 1754Beltzer, A.1 ............... 394 Blaauwendraad,.J ........... 1698 Bratosin, D ................. 979Belubeklan, M.V ............ 2243 Black, G ................... 1564 Bratton, J.I............... 1027Belytschko, T ........ 1735, 1851 Black, W.E .................. 800 Braun, D ................... 1976Belytschko, T.B ............ 2366 Blackwell, A.L.J.L .......... 234 Braun, F.B .................. 343Benantl, A ................. 2332 Blaeslg, H ................. 1003 Braun, S ............. 1501, 1542Bencl, V ................... 2346 Blake, W.K ................. 2763 Breltenbach, E.D ............ 521Benda, B.J ................. 2259 Blakely, K.D .... 679, 1230, 1305 Brentnall, W.D .............. 183Bendat, J.S ................. 774 1511 Bretz, T.E ................. 1910Bendlksen, 0.0 ............. 1336 Blakely, L.L............... 1122 Brleger, J.T ................. 51Bendsoe, M.P ............... 2356 Blanchet, V ................. 623 Brlen, M.J ................... 54Benedettlni, F ............. 2472 Bland, S.R ................. 1785 BriII, D .............. 392, 2737Benedetto, G ......... 2026, 2276 Bland, T.L ................. 1390 Brill, M.H ................. 1768Benes, E ................... 2314 Blaney, G.W ................ 2650 Brind, R.J .................. 966Benglsu, M.T ................ 690 Blanks, H.S ................. 559 Brindley, J .......... 1675, 1676Benhablb, R.J .............. 1105 Blevlns, R.D ............... 1773 Brinkley, J. W ............... 33Benham, R.A ................ 2541 Block, J ................... 1544 Brinkman, B.A .............. 1255

Benltez, F.G ............... 2363 Blok, H ..................... 967 BrInkmann, C.R .............. 273Benlto, R ................. 1137 Bloom, J.C .................. 771 Brltt, J.R ................. 2537 286

.~~: -... .- ...0~ iiiii

................................................-

Brocher, E ................. 1747 Calaa, C .............481, 1630 Chang, I.-Chen ............. 1128*Brock, L. N ......... 156 Caldersmlth, G ..... 1141 Chang, Jung-Hue ....... 1131

Brodrick, R.F .............. 2662 Calico, R.A ................ 1624 Chang, P.Y .................. 463Brook, H.W.................. 150 CalIskan, N................. 702 Chang, T.Y.P ............... 2064Broner, N .................. 1634 Camarda, C.J. .............. 2617 Chang, Y.M.................. 334Brook, M................... 911 Cameron, D.W ................ 546 Chang, Y.W........26, 114, 602,

* Brooks, T.F ................. 847 Campbell, G.S.. 1082, 1934, 1935 803, 808, 811Brotton, D.N............... 2380 Campbell, K.B .............. 1399 Chao, C.F .................. 1287Broush, W.T................. 734 Campbell, K.L .......... 293, 294 Chao, D.C.............. 50, 1392

* Brown, A. 0................ 2584 Campbell, T.G ............... 290 Chapman, D..F .............. 146Brown, A.L................. 1941 Campo, J.J .................. 799 Chapman, M ................. 1350Brown, D ................... 1578 Cant, R.S ................... 712 Chapman, N.R ............... 1464 .- .- ,, -

Brown, D.K .................. 544 Cantwell, W.J .............. 1799 Chaquln, J.P ............... 1301Brown, DA ...... 749, 1218, 1220 Carbon, G.D ................ 2792 Char, W.T .................. 2045

1228, 1505 Carden, H.D .......... 1939, 2420 Chargin, M.K ................ 238Brown, J.J .................. 235 Carlson, 0 ................. 2525 Charlie, W.A ................ 909Brown, P .................... 605 Carlson, R.0 ................ 885 Charnley, T ................. 115Brown, R.D ................. 2141 Came, T.G ................. 1020 Charron, J.L ............... 2220Brown, R.N .................. 585 Carney, III, J.F ............ 305 Chase, D.M ................. 2756Brown, S.J .................. 336 Carney, R.R ................ 1652 Chatfleld, A.G ............. 1600Browning, D.G .............. 1465 Carper, C.H ................ 2176 Chattopadhyay, A ........... 1814Brox, W .................... 2530 Carr, A.J .................. 1903 Chaturvedl, S.K ............. 907Brubaker, N ................ 1599 Carrascosa, L.1 ...... 1067, 1265 Chaudhurl, S.K ............. 1718Bruce, J.R ........ 162, 443, 449 Carrelra, D.J .............. 1134 Chebl, C .................... 953

Bruening, G ................ 1628 Carson, J.M ................. 915 Chehlml, C ................. 1198Brun-Cassan, F ............. 1958 Carter, A.L................ 1850 Chen, C.H ................... 968Bruner, H.S ................ 1933 Carter, D.B ................ 1011 Chen, C.P .................. 1777Brunet, M .................. 2461 Carter, W.J ................. 992 Chen, C.Y .................... 37Bryant, A.H ................. 261 Caruso, H .................. 2594 Chen, H. Ming ......... 687, 2151Bryden, J.E ................ 2412 Casarella, M.J ............. 2765 Chen, H.Y .................. 2483Bschorr, 0 ................. 2567 Casclatl, F ................ 2546 Chen, Hsln-Plao ............ 2562 . SBuck, 0 .................... 1839 Cashar, E.E ................ 1389 Chen, J .................... 2099Buckley, D.H ............... 1792 Casler, J ................... 219 Chen, Jay-Chung ...... 1086, 1092Buell, D.A ................. 1781 Cassar, A.G ................ 1508 Chen, Jlngyu ............... 1286Buenneke, R.W .............. 1678 Castle, C.B ................ 1388 Chen, K.G .................. 1210Butler, H ................... 386 Catteau, G ........... 1071, 1231 Chen, L.C .............. 75, 1408Bulmash, G ................. 1472 Caudill, R.J ............... 2411 Chen, L.-W ................... 99Buna, B .................... 1174 Caughey, D.A ............... 2204 Chen, Min-Her .............. 1270Bunketorp, 0 ............... 1959 Caughey, T.K ............... 2821 Chen, P.C ................... 328 7 --Bunton, R.W ................. 282 Cawley, P ............ 1515, 2084 Chen, P.J .................. 2589Burdess, J.S ................ 836 Cechetinl, J.A ............. 1061 Chen, P.S................... 192Burgers, P .................. 383 Censor, D ................... 742 Chen, S.S.........116, 801, 883Burgett, A ................. 1599 Cepkauskas, M.M ............. 601 2017, 2739Burns, D.W ................. 1662 Cermak, J.E ................ 1358 Chen, Shlung ............... 2669Burns, W.C ................ 2323 Cerny, E .................. 2576 Chen, Su-Huan ............. 1291Burrows, C.R... 1418, 1671, 2796 Cesarl, D .................. 1954 Chen, W.F .................. 2064Burrows, L.T ............... 2176 Ceschlnl, L.J .............. 1490 Chen, Wen-Hwa .............. 1126Bush, H.G .................. 1713 Chahlne, G.L ............... 1446 Chen, Xlanwel .............. 2825Bush, R .................... 1033 Chakrabartl, S ............. 2387 Chen, Yie-Ming .............. 488 -Bushnell, D ................. 871 Chakraborty, M ............. 1814 Cheng, C.-H.A .............. 2371Bushnell, D.M .............. 1178 Chakraborty, T ............. 1447 Cheng, D.Y .................. 1393Butkovlc, N .......... 2133, 2201 Chakravartl, G .............. 435 Cheng, Hualou .............. 1040Butler, A.J ................. 262 Chalko, T .................. 2142 Cheng, J.S ................. 1091Butler, P.8 ................ 2043 Challen, B.J ............... 1045 Cheng, Jlan-Guo ............. 380 SButter, K .................. 2278 Challis, R.E ................ 753 Cheng, Jing Yun ............. 617Buxbaum, 0 ................. 1207 Chamleh, D.S .................. 7 Chang, Kengtung ............ 2194Buyukozturk, 0............. 1793 Chamls, C.C................. 493 Chang, P.H ................. 1957Buzan, F ..................... 75 Chamuel, J.R ......... 2267, 2300 Cheng, Shlh-Che ............ 1246

Chan, A.K ................... 701 Cheng, Yaodong .............. 1225Chan, Esmond Chl-Yiu....... 1146 Cheng, Yue Sun .............. 610

-C- Chandra, M .................. 500 Chenoweth, J.M ............. 2262Chang, A.T ........... 2453, 2709 Cheresh, M.C ............... 2329Chang, C.S .................. 179 Chestnutt, D ............... 2634

Cabannes, H ................ 2471 Chang, F.C ................. 1834 Chesnutt, J.C .............. 1391CabellI, A ................. 1452 Chang, Fashln Craig ........ 2597 Chessa, A .................. 2143CabllIc, J.P ............... 271 Chang, F.H ................. 2366 Cheu, T.C................. 1297Cacko, J ................... 2107 Chang, H.C ................... 10 Cheung, J.C.K ............... 599 ..-

Cadeddu, M ................. 2137 Chang, I.C ................. 2204 Cheung, Y.K .......... 2105, 2499

87- :'-- :-

, .: : ..,.,. -.. :,:.. .: -....:.:.:.:....:.:..:.....-:..* * ..: *-.: .**-:-*-*.:*:*:.... : :;* :.; ; ..'.'.:::.?

Chevalier, Y ............... 1289 Cloostermans, M.J.T.M ...... 2586 Crawley, E.F ......... 1721, 2207Chi, R.M ................... 1861 Clough, R.W ................ 2817 Crtghton, D.G... 869, 1772, 2753Chian, C ................... 2426 Cobb, W.N ............. 692, 1234 Crocker, M.J ..... 138, 249, 351,Chiang, T .................. 885 Coghill, G.G ............... 2318 1897, 1929, 2570Chlarlto, V.P .......... 23, 1060 Cogswell, J.A .............. 1972 Croker, D.M .......... 1045, 1155Chiba, N ................... 2498 Cohen, D.S ................. 1598 Croll, J.G.A ............... 1147 -Chiba, Y ................... 1650 Cohen, R ................... 1877 Crolla, D.A ................. 823Chien, A.Y ................. 2144 Cohen-Tenoudjl, F .......... 1839 Cronkhte, J.D ............. 1936ChIkazawa, T ............... 2460 Cojocaru, E ................. 979 Crostack, H.A .............. 2095Childs, D .................. 1879 Cole, D.M................... 446 Croteau, P ........... 1913, 2406Childs, D.W ........ 4, 245, 2232 Collet, B ................... 166 Croustalls, M .............. 1283Chin, R.C.Y ................. 969 Collier, S.L............... 316 Crowe, D.R .................. 527 .-. -

Chinn, J.M ................... 46 Collins, J.S ............... 2035 Crowley, D.A ................ 806Chipman, R ........... 2419, 2671 Colsher, R .................. 590 Crowley, J.R... 1229, 1249, 1268Chipman, R.R ............... 1075 Coltharp, D.R ............... 913 Crowley, S.M ............... 1269 •Chisallta, A ............... 1693 Colton, J.D ............ 443, 449 Crutzen, Y ................. 1030Chitty, D.E................. 679 Colyer, B .................. 1021 Cubeddu, C .................. 437Chmdrny, R ................. 2077 Como, M ..................... 161 Culver, C.C ................ 1979Choi, DooWhan ............... 1131 Comparin, R ................ 1050 Culverhouse, R ............. 1561Choi, K.K .................. 2358 Cone, D.C ................... 1070 Cummings, A ....... 681, 682, 887Chonan, S ............ 2509, 2721 Conle, A ................... 1488 1454Chopra, A.K ..... 794, 798, 1592, Conner, D.A ................ 2197 Cunningham, H.J ............ 2621

2647 Connon, III, W.H ............ 189 Curamt, A .................. 2342Chopra, O.K ................. 959 Connor, J.J ................ 1596 Curnler, A .................. 395Chotal, A ................... 519 Constantinescu, I... 1113, 2813 Currerl, J .................. 604Chou, C.C .................. 2085 Constanttnou, M.C .......... 1590 Curtis, A.J ................ 2628Chou, Chaur-Ming ........... 1257 Contreras, R ............... 2417 Curtis, P.T ................ 1799Chou, S.-T ........... 2630, 2631 Conway-Jones, J.M .......... 2331 Cutchlns, M.A ............... 282Chouard, Ph ................ 2254 Cook, R ..................... 540 Cutts, D.G ................. 1892Chow, A.C.................. 1691 Cook, R.D................... 217 Cuzner, G.J ................. 360Chow, C.Y .................. 1673 Cook, R.F ................... 956Chowdhury, A.A ............. 1362 Cooke, W.L................. 1110Choy, W .................... 1797 Cookson, R.A ................ 373 -0-Chrlstiano, P .............. 1368 Cooper, D.G ................ 1646Chruma, J.L ................ 1899 Cooper, J.H ................ 1991Chryssostomldls, C .... 122, 123, Cooper, Jr., J.H ........... 2459 Daadbin, A ................. 1356

124, 125, 126 Cope, D.A.................. 1389 Daboln, S.A................ 1390Chu, F.H ....... 1258, 1287, 2604 Coppens, A.B ................ 901 Dagalakis, N.G ........ 191, 2099Chu, Fel-Hon ............... 1261 Coppollno, R.N ............. 1085 Dahl, M ..................... 486 . ..Chu, M ...................... 336 Cops, A ................... 2585 Dahm, M .................... 2043Chu, R.H ................... 1541 Corbett, Ill, S. ........... 514 Dal, Gen-hua ............... 1162 ... ' -Chu, S.T ................... 1119 Corelll, D ........... 1218, 1830 Daimaruya, M ............... 2701Chuang, T.Y ................ 2259 Corley, W.G ........... 134, 2265 Dalamangas, A ........ 1440, 2495Chudnovsky, V.G ............ 2553 Cormeau, A ................. 1304 Daley, D.H ................. 2004Chung, A.W ................. 1077 Cornwell, R.E ............... 396 Dalmotas, D.J .............. 1966Chung, H ................... 2400 Corones, J.P ................ 695 Dance, D.M ................. 1969Chung, J.C ................. 1251 Corr, J.E .................. 2401 Danckert, H ................ 1376Chung, J.S .................. 120 Corsanego, A ............... 2759 Dancy, E ................... 1397Chung, Wei-Lun ............. 1312 Corten, H.T ................ 1999 Daniel, J.1 ................. 441Chwang, A.T ................ 1211 Cossalter, V ............... 1765 Daniel, Jr., S ............. 1097Claar, Ii, P.W ............. 2680 Costantino, C ............... 604 Daniele, C.J ................ 422Clapis, A .................. 2137 Costanzo, F.A ............... 164 Danielski, J ............... 2196Clapp, T.G ................. 2192 Cotter, D .................. 2387 Dann, R.T ................... 629Clark, C.C ................. 1949 Coulter, G.A .......... 361, 2544 Dannecker, K ............... 1048 0Clark, G ................... 1244 Counts, J .................. 2110 Darbre, G.R .......... 2389, 2390Clark, G.A ................. 1347 Cowley, A ................... 225 Dareing, D.W ... 2119, 2397, 2398Clarke, B .................. 2290 Cowling, M.J ................ 544 Darlow, M.S .... 1319, 2315, 2335Clarke, J.F ................. 712 Cox, F.W .................... 201 Darmon, C.A ................ 2177Clarkson, B.L .......... 111, 663 Coyle, R.A ................. 1000 Das, S ...................... 103Clay, M.R .................. 1825 Crabb, H.C ................. 1300 Dass, W.C ....... 865, 1027, 1907Cleary, M.P ................. 2296 Craggs, A .................. 1748 Datta, S.K ................. 1447Clements, E.W ................ 41 Craig, J.E ................. 1781 Datta, T.K ................... 21 - 0Clevenson, S.A .............. 827 Craig, J.i ................. 1584 Daube,F.G .................. 2250Clifton, M.A ............... 1238 Craig, Jr., R.R ..... 396, 1297, David, J.W .................. 785Clifton, R.J ............... 2787 2068 Davids, N .................. 2482ClInard, J.A ................ 1867 Cralk, R.J.M ................ 773 avidson, L.C ............... 117Cline, P.A ................. 1083 Cramer, M.S ................. 167 Davidson, J.A ........ 2000, 2002Cline, S .................... 1564 Cramond, A.J ............... 1462 Davies, H.G .................. 529

88

.. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . .- . . . . .o . '

.. . . . . . . . . . . . .. " "... . . . . . .' ' "".".. . .. , .. - - - -... '.. ... . . . . . . .. . . . . . . . . . . . . . .

Davies, MN.................. 2575 Dey, S.S ..................... 14 Drumm, E.C ................. 1906Davies, P ............. 233, 1513 Dhaliwal, R.S ......... 324, 1212 D'Souza, A.F ... 940, 941, 942Davies, W.G.R.. 1330, 1341, 2129 Diana, G ....... 1905, 2132, 2234 Du Bat-ping ................ 1t794Davis, B ................... 2111 Dias, J.C .................. 1338 Duan, Gen bac .............. 1066

*Davis. C.W ................. 1526 Dickerson, K.L............. 2780 Dubey, R.N ................. 1692Davis, JAL................. 2333 Dietrich, R ............ 516, 813 Duchateau, J.L ............. 1024Davis, P.W .................. 220 Dietz, G ................... 2079 Dudley, D.G ................. 415-Davis, R.C ................. 2118 Digges, K.H .......... 1636, 1637 Duffey, T.A ................ 2329

* Davis, R.1I.................. 708 DiGiacomno, A.F ............. 2323 Dugdaie, 0.S ................ 723Davis, T7....................615 DiMagglo, FAL.............. 2506 Dugundji, J ................ 1140Davis, W.F ................. 1397 Dimarogonas, A.D ... 786, 1805 Duh, J ...................... 489Davis, W.T ................ .1516 Dimas, D.J ................. 1274 Duke, J.C ................... 952.Davison, D.K.......... 169, 2033 Dinca, D0................... 2704 Dumitrescu, J.A ............ 1733

*Davison, M.E................ 695 D1Paola, M..1363, 2291, 2548 Dunham, CAR................ 1678Dave, 0 .................... 1175 Di Pasquantonlo, F ..........2342 Dunham, M .................. 1091Dawicke, D.S ................ 535 Diprima, R.C ............... 1779 Dunn, W.L ...................2156Daws, J.W .................. 1681 Dirusso, E ................. 2230 Dupuis, H ................... 613Dawson, B .................. 2575 Dittmar, J.H ............... 2172 Du Qingxuan ................ 2819Day, E ..................... 1975 Dixon, N.R ......... 12, 36, 2165 Duffy, J ................... 2784Dayan, M ................... 1792 Djojodihardjo, H ........... 1924 Dumir, P.C ................. 2720De, S ................. 109, 2554 Djoldasbekov, V.A .......... 2130 Durbin, P.A ............ 899, 900De Almeida, M.T .............1338 Ojordjevic, W ......... 421, 1317 Durham, D.J ................ 1504Dearien, J.A ................1868 D'Netto, W ................. 1428 Dutta, D0.....................88deAraujo, M.A.N ..............894 Doak, P.E ................... 898 Owivedi, S.N ................. 11De Baerdemaeker, J ......... 1136 Dobbs, M.W ................. 1511Debruijn, A ................ 2663 Dobry, R ................... 2388DeChlffre, L ............... 2794 Dobson, B.J ................ 1132 -De Dayan, H.G ............... 906 Dobson, W.G ................ 2662Deel, J.C .................. 1504 Dodds, Jr., R.H ............ 2108de Espinosa, F.M ........... 2719 Dogan, M ....................533 Earles, S.W.E .............. 1728DeFerrari, H.A .............. 708 Doggett, Jr., R.V ........... 280 Earls, 0.1................. 2627Deger, Y ................... 1221 Doi, M ..................... 2147 Eastep, F.E .......... 1438, 1624deHoop, A.T ................ 2533 D~ker, H .................... 543 Eaton, J.A .................. 291DeJong, R.G ........... 230, 1535 Dolansky, J ................ 1820 Ebbinghaus, W .............. 1376Delannoy, B ................ 2750 Dotting, D.S ........... 524, 715 Eberhardt, A.C ........ 633, 2192D'Eieuterio, G.M.T ......... 2823 Dominic, R.J ......... 2449, 2558 Ecker, W ................... 1922Del ichatsios, M.A ........... 609 Don, C.G ................... 1462 Eckhardt, K ......... 513de los Reyes, G .............1408 Donaldson, Jr., K.H ........ 1193 Eckstrom, C.Y ............... 479Delsanto, P.P ................ 392 Donath, R.C ................ 117 Edelstein, A .......... 266, 1532

*Dembo, M.M ..................2045 Donati, P.M ................. 484 Eden, J.F ................... 262Demchak, L.J ................ 829 Dong, X.-Q ................. 1177 Edwardes, R.J ...............1138DeMeyer, F ................. 2319 Dongarra, J.J .............. 2360 Edwards, J.W .......... 531, 1785den Boer, R.G ........... 48, 478 Doong, J.-L .................. 99 Edwards, P.R ................ 540..-Denham, R.N ................ 1465 Dorfel, G ................... 764 Egbuonye, 1.0 ............... 438

*Denhol lander, J.G ... 473, 569 Dornfeld, 0 ................ 1543 Eghf-esadi, Kh . 683, 703, 1764Denker, 0 .................. 2656 Dorsey, J.T ................. 323 Ehrich, F .................. 1879Dentsoras, A.J ............. 1805 Dosso, S.E ................. 1464 Eldsmore, J ................. 5720deOliveira, J.G .............. 29 Do Tien Vu .................. 611 Ellers, 0 ................... 482DePont, J ................... 115 Doublier, B ................. 428 Elsenblatter, J ............ 1004de Prunele, D0............... 689 Dove, R.C ................... 603 Elsentraut, O.K ............ 1629Derecho, A.T ................ 134 Dowdell, J.K ............... 1217 Elshima, K ................. 1921Derem, A ................... 2728 Dowell, E.H..180, 655, 1474, Eiler, T.J ................. 136Der Kiureghian, A .......... 1506 1854 EI-Ashkar, 1.0 ..............2022Derouet, J .................. 320 Dowling, A.P ................ 352 Elchurl, V ... 779, 1860, 2362Derucher, K.N .............. 1581 Dowling, N.E .......... 375, 1491 El Haddad, MAL.............. 552Desal, M ................... 2606 Downard, D.F ................ 230 El Hifnawy, L ............... 374Desatni-fuscien, M ........... 194 Downing, S.D ............... 2777 Elishakoff, I .............. 1782DeSilva, CAN............... 2483 Dowson, 0 ...................2675 El Khatib, A ................1279

*DeSilva, C.W .... 754, 2566, 2629 Doyle, Jr., G.R ............ 1352 Elklns, J.A ................. 460Desmarais, R.N ............. 2621 Doyle, J.F ........... 2029, 2484 Ellermeier, W .............. 1179DeSouza, V.C.M ............. 1147 Dozier, L.B ................ 2364 Eilingwood, B .............. 1455

*Deuster, G ................. 1005 Dragani, R ................... 73 Elliott, K.B ......... 1242, 2322DeVor, R.E ................. 2170 Drakatos, P .............. 68, 69 Elliott, L ........... 1675, 16760

*De~ries, A.J ............... 2409 Drake, JAL........... 2041, 2537 Ellis, 0.0 .................. 146De Vries, 0 ................. 518 Drake, M...372, 1069, 2770 Ellis, J.R ................. 1649Deweil, 0.1 ................ 1507 Dresig, H .................. 2691 Ellyin, F ............ 1201, 1795Do Wilde, W.P ........ 1209, 1250 Drew, S.L.K ................. 305 EI-Magd, E ................. 1804

*DeWolfe, P.H ................. 58 DrosJack, M.J .............. 2330 Elmaraghy, R ......... 1184, 1315

89

El Nomrossy, M.M ........... 1139 Feng, Zhen-Dong ............ 1901 Frey, D .................... 209

EI-Raheb, M ............ 699, 700 Fenves, G ................... 798 Freymann, R ................ 2184

El-Sadek, M ................ 2266 Ference, E .................. 286 Frlberg, 0 ................. 1318Elshorbagy, K.A ............ 2528 Ferguson, J.H .............. 2374 Fricke, F .................. 1457Endebrock, E.G .............. 603 Ferrarls, G ............. 2, 1345 Fricker, A.J ........... 228, 229Endo, M ..................... 1743 Ferritto, J.M .............. 2622 Friedrich, C.M ....... 1863, 2486Engelstad, R.L ............. 1063 Ferroni, F ................. 1149 Friedrich, G ................ 853England, G.L................ 306 Fertls, D .................. 1337 Fries, R.H .................. 614Eppinger, R.H ........ 1955, 1959 Ffowcs-Wlllfams, J.E ....... 2752 Friesen, T.V ............... 2050Erdrelch, J ................ 2081 Fiala, C .................... 810 Friesenhahn, G.J ........... 2040Ericsson, L.E.. 755, 1706, 1711, Fidell, S .................... 65 Frieze, P.A ................. 296

2423, 2545, 2767 Field, N.L ................. 1278 Frigerl, C ..... 2137, 2152, 2332Erlich, D.C ................ 2785 Fields, D.E ................ 1101 2334 -Ertepinar, A ............... 1750 Fields, J.M ................ 1398 Frigne, P .................. 1880Ervin, R.D ............. 293, 294 Fields, S.R ............ 459, 817 Frltzen, C.P ............... 2127Eshleman, R.L............... 747 Fllippi, P.J.T .............. 705 Frohrlb, D.A ................ 722Eskin, Y ................... 1546 FilIppou, F ................ 1114 Fry, M ...................... 908Eslon, L ................... 2025 Fllippou, F.C ............... 641 Fu, L.S ..................... 553Esparza, E.D ............... 2046 Finch, R.D .................. 634 Fu, Z.F ..................... 494Esselman, T.C .............. 1151 Finn, L.D .................. 2160 Fuchs, H.P .................. 405Etslon, I .................. 2813 Fish, G.L ................... 635 Fudeh, H.R ........ 347, 348, 349Etter, P.C................. 1466 Fisher, H.D ................. 859 Fuehrer, H.R ............... 2089 SEttestad, K.L .............. 1015 Fistedls, S.H ............... 811 Fuh, Jon-Shen .............. 2682Evan-lwanowskl, R.M ......... 173 Fitzgerald, J.M ............ 2636 Fuhlrott, H ................. 954Evensen, H.A .... 973, 1576, 1577 Fitzpatrick, M ............... 31 FuJczak, R.R ............... 2507Eversman, W ............ 346, 887 Fitzpatrick, M.U ........... 1096 Fujil, Y ................... 1374Everstlne, G.C .............. 191 Fitzpatrick, R .............. 160 FuJimoto, T ................ 1451Every, M.J ................... 27 Flack, R.D ..... 1344, 2215, 2688 FuJita, K .................. 1677Ewing, M.S ................. 1701 Flanagan, D.P .............. 1851 FujIta, Y ................... 972Ewins, D.J ..... 1223, 1226, 1303 Flashner, H.K .............. 1105 Fujlwara, H ................ 1375 0

1527, 2208, 2214 Fleeter, S ................. 1986 Fujlwara, K ................ 2275Ezell, J .................... 713 Fleischer, H ............... 1767 Fukahorl, M ................ 2696

Fleishman, B.A .............. 220 Fukuchl, Y .................. 536Fleming, Jr., W.T .......... 2287 Fukuda, S ................... 876

-F- Fletcher, N.H .............. 2697 Fukuda, Y ................... 377Florence, A.L......... 355, 2039 Fukushlma, M ............... 1331Flotho, A .................. 1896 Fukushlma, N ................. 72

Fabunml, J.A ............... 1417 Flynn, D.R .................. 750 Fukushlma, Y ................ 842 -Faerber, E ................. 1404 Foletta, M ................. 1221 Fuller, CA .... 2516, 2517, 2742Fagan, R.L .................. 1865 Foley, M.J ................. 2178 Fuller, Jr., E.R ............ 957 ..-Fagundo, F.E ............... 1580 Folllnger, H ................ 251 Fung, K.-Y ................. 1077Fahy, F.J .................. 1520 Fontanet, P ................ 1379 Furudono, M ................ 2312Falco, M ................... 2234 Ford, R.D .................. 1453 Furuhaa, S ................ 1900Falk, S .................... 1293 Foret-Bruno, J.Y ........... 1947 Furukawa, T ................ 1245Fan, S.C ................... 2499 Forney, G.P ................. 707 Futakawa, M ................. 330 -Fantino, B ................. 1990 Forrestal, M.J ....... 2037, 2252 Fuyukl, M .................. 2301Fan Xlaoqlng ............... 1749 Forssen, B.H ............... 1831 Fyfe, D .................... 908Farabee, T.M............... 2765 Forster, J.J................ 911Farassat, F ............ 285, 848 Forster, R ................. 2091Faravelli, L ............... 2546 Fortuna, R.E ............... 2435 ..-Fardis, M.N ................. 609 Fortunlewlcz, J.S .......... 2412Farmer, M.G ............ 281, 403 Forward, R.L................. 63Farrar, C.L................ 2241 Fourney, W.L............... 2700 Gabri, B.S ................. 1239Faulkner, L.1......... 472, 1352 Fowler, J.R ................ 1397 Gabrielson, T ............... 159Faulkner, M.G ............... 356 France, D.M ................. 885 Gabrielson, V.K ............ 1869Faultersack, M............. 1275 Franchl, E.R................ 896 Gadda, E................... 2137Favier, D .................. 2550 Franclosl, C ............... 2010 Gaertner, R .................. 96Favre, B .................... 623 Francis, S.H ............... 1241 Gagneux, J.-M ............... 623Favre, B.M .................. 828 Franco, G .................. 2430 Gajarskj, M ................ 1971Fayon, A ................... 1951 Frank, R.A ................. 2156 Galaltsls, A ................ 787 -

Feder, D ................... 2399 Franklin, A.G ............... 797 Galaltsls, A.G ............. 2163Federn, K .................. 2096 Frater, J.L............ 502, 503 Gallardo, V.C.............. 1564Fehrenbach, H .............. 1013 Frechen, Th ................ 2079 Gallego-Juarez, J.A ........ 2719

Felk, R.A .................. 1025 Freeland, G.E .............. 2369 Gallo, A.M ............ 779, 2362Feld, P.G .................. 1494 Frelbauer, L ................ 631 Galloway, R.G ............... 917Feltz, T.F ................. 2173 Frene, J ................... 1990 Gambhlr, M.L ............... 1123Fenech, H .................. 2012 Freund, H ................... 526 Ganapathy, V ................. 580Feng, C.C ........ 661, 662, 2818 Freund, L.B .......... 2783, 2784 Gandhi, MA ................ 2720

90 0

* . 7 -'. - ... . . . . . . .- ..-

Ganesan, N .................. 501 Gladman, D.C ................ 184 Gregory, C.Z ............... 2429Gangwani, S.T .............. 1861 Gladwell, I ................ 1502 Greif, R .................... 555Garcia, J.L................ 2254 Glass, 1.1 ............ 170, 1473 Griesbach, T.J............... 121Gardner, W.T ............... 1969 Glass, J.T ........... 1836, 1837 Griffin, J.H ......... 1659, 2206Garg, V.K ................... 822 Glasscock, M.S ............. 2160 Griffin, M.J............... 1944Garrard, W.L ............... 2411 Gledhill, S ................ 2111 Griffin, O.M ................. 27Garrelick, J.M ............. 2249 Glenn, L.A .................. 2013 Griffiths, J.R .............. 564 9Garrett, D.L ................. 93 GlInka, G .................. 1198 Griffiths, S.K .............. 626Garrison, P ................ 2411 Gloeckler, 0 ............... 2598 Grim, G.K ................... 759Garro, A ................... 1680 Glover, Jr., B.M ........... 1389 Grinberg, N.M ............... 548Gartner, J.R ............... 1284 Cnieika, P .................. 762 Grivas, D.A ................. 891Gary, G ..................... 864 Go, G.D ..................... 2681 Groethe, M ................. 1975Gasch, R .............. 433, 2373 Goddard, C.R ................. 599 Gross, D.W ................. 1258Gasparetto, M .............. 2342 Goddard, W ................. 1483 Gross, M.B ................. 2366Gasse, W.F ................. 2059 Godden, W.G ................. 297 Grossmann, M ............... 1639 0Gaston, J.R ................. 585 Godet, M ................... 1990 Grosveld, F.W ........ 2171, 2667Gaul, L ..................... 504 Goenka, P.K ................. 851 Grotberg, J.B .............. 1752Gaunaurd, G.C... 392, 1104, 1145 Goglia, G.L ........... 110, 1222 Grove, C.F .................. 532

2737 Goldar, D .................. 2549 Grover, A.S ................. 664Gawlak, G .................. 2810 Goldfracht, E ........ 1724, 1725 Grover, G.K ................. 510Gawronski, W ............... 1852 Goldsmith, W ............... 2244 Grund, P ........ 893, 1519, 2747Gay, D ...................... 507 Golub, R.A ................. 2424 Grunnet, J.L................. 286Gazetas, G ................. 2388 G6mez-Mass6, A ....... 2283, 2393 Guan DI-Hua ................ 1985 0Gedney, C.J................. 688 Good, J.K .................. 2106 Gubernatis, J.E ............. 966Geer, D.H .................. 2607 Good, M .............. 1182, 1828 Gudmundson, P ......... 321, 1273Geer, J.F ................... 963 Good, M.R .................. 1115 Guenther, D.A ........ 1957, 2434Geers, T.L ................. 2611 Goodall, R.M ................. 76 Guerra-Rosa, L ............. 1200Gehling, R.N ............... 1185 Goodman, D.M ................ 241 Gulcking, D .... 2078, 2676, 2677Gelb, F.E .................. 2766 Goodno, B.J ................. 1584 Gulbinas, A ................ 1886Geissler, W ................ 1655 Goodrich, C.W ............... 878 Gunter, EA ..... 579, 1035, 1895Genoux, P .................. 1446 Goodwin, M.J............... 1108 2292, 2340 0Geoola, F ................... 1433 Goorjlan, P.M .............. 1081 Gunzel, K ................... 985George, A.R .......... 2630, 2631 Gopalakrlshnan, S .......... 1887 Guo Jlanting ............... 1796George, L.L................ 2158 Gopalan, T.V ................ 946 Gupta, A.K .................. 331Georgladis, C ............... 943 Gopalaratnam, V.S .......... 2325 Gupta, B.K .................. 497Georgladis, H.G ............ 1726 Goraj, Z.J................. 1282 Gupta, N ............. 1106, 2605Gerardi, T.G ................ 231 Gordanlnejad, F ....... 508, 2238 Gupta, S ................... 1757Gerber, N .................... 64 Gordon, C.G ................. 135 Gupta, Y.M ................. 2073Gerhold, C.H ......... 2664, 2665 Gordon, D.E ................ 1800 Guralnlck, S.A .............. 719 .•

Gerfcke, O.R ................ 993 Gordon, J.D ............ 164, 165 Gurich, G .................. 2082Gerwlck, B.C ............... 2406 Gordon, J.T ................. 169 Guruswamy, P ............... 1081Gese, H .................... 1922 Gorman, D.G ....... 102, 333, 868 Guthrle, K.M ............... 1465Gevatter, H.-J ............. 2798 Gorman, D.J ................. 101 Gutl6rrez, R.H ............. 1722Ghaboussl, J ............... 1594 Gorman, V.W ................ 2086 Guttalu, R.S ............... 2103Ghaffarl, R ................ 2407 Gossmann, E ................. 256 Guyader, J.L............... 2716Ghafory-Ashtlany, M... 133, 2284 Got, C ......... 1947, 1951, 1958 Guzzo, C ................... 2143Ghanl, E .................... 306 Goto, M .................... 1498 Gvildy, J ......... 26, 334, 602Ghlaim, K.H .......... 1260, 2610 Goudle, S.H ................. 616 803, 808Ghosh, A ............... 365, 366 Goudreau, G.L............... 766Ghosh, A.K.................. 739 Gough, C .................... 2470Ghosh, M....... 2350, 2441, 2579 Gould, P.L................ 2736 -H-Ghosh, M................. 2350 Grabowski, B ............... 2139Ghosh, P.K .................. 432 Grady, D.E .................. 875Glannotti, J ............... 2662 Graf, P.A .................. 1483 Haas, D.A ................... 539Gibert, P ................... 411 Graffl, H .................. 2654 Haas, E .............. 1756, 2257Gibert, R.J................. 881 Graham, M .................... 45 Habermann, H ............... 2461Gibson, B.W ................ 1789 Grams, J .................... 880 Habip, L.M .................. 1753Glilbrlde, J ................ 2664 Gran, J.K .............. 443, 449 Hackman, R.H ............... 1161 - "Glikey, J.C ................ 2114 Gran, R.L................... 488 Haddow, J.B .......... 1812, 1813Gill, H.S .................. 1062 Grandke, T .................. 193 Hader, H .............. 928, 2019Gillespie, T.D... 293, 294, 1412 Grant, D.A ................... 94 Haerlng, H.U ............... 1052Gilmore, C.B ................ 215 Graves, B.J ................ 1381 Hagen, D.L................. 2118Gilsinn, D.E ............... 2641 Gray, T.A .................. 1840 Hagl, S ..................... 353Glistrap, M ................ 1845 Greathead, S.H ............ 2122 Haglwara, K ................. 276Gim~nez, J.G ......... 1067, 1265 Green, L.H .................. 148 Hague, III, J.M ............ 1607Gindy, S.S ................. 2582 Green, Jr., R.E ...... 1836, 1837 Hahn, E.E .................. 2042 . . .Ginsztler, J ............... 1603 Green, W.L. ................. 799 Hahn, W.F.................. 2260Giordano, C ................ 2338 Greenough, C .... 570, 1028, 1862 Hamns, F.' ............. 163, 930

91 - - -

. . . . .. . . . . . . . . . . . . . . . . .... ,

. . . . . .'.

°..... .....o~~~~~~~~~.,,........ ........... .. .'.. '-. ",..

.i •o~~~. . .r ....................".....o.• ,

Hajela, P .................. 1074 Hautfenne, M ............... 1304 Hirsch, G .................. 2399Hale, A.L.................. 1514 Havard, D.G ................ 2236 Hirt, M ..................... 639Hale, D.A .................. 1758 Havas, T ................... 2815 Hlrukawa, K ................ 1900Hale, K .................... 1601 Hawkins, W.J ................ 230 Hitchcox, A ................ 1989Haley, JAL.................. 470 Hawthorne, W.R .............. 132 Hjelmstad, K.D ............. 1121Halford, G.R ............... 2229 Hayakawa, Y ................ 1875 Hjorth-Hansen, E ... 127, 2009Hall, C.D ................... 763 Hayama, M .................. 2795 Hoad, D.R ...................2197Hall, FAL............ 1583, 1586 Hayama, S ... 340, 862, 863, 879 Hobbs, B ................... 1902Hall, P .................... 1779 Hayashi, K .................. 860 Hock, F ..................... 482

*Hall, W.J .................. 2807 Hayashi, Y ................. 1875 Hodges, C.H .................. 70*Hal lauer, W.L .............. 1406 Hayashida, M ............... 1002 Hodgson, D.C ................ 522

Hal lauer, Jr.,.W.L .......... 1185 Hayduk, R.J..838, 1631, 2420 Hoenlinger, H ............... 619Hal le, H ................... 2262 Hayes, C. D .................2428 Hoeppner, D.W ......... 546, 1194

*Hal lentus, K.E ............. 2525 Hayes, C.H..2454, 2455, 2456 Hoffmann, G .......... 2020, 2021Hal leux, J.P ............... 2623 Hayes, P.A ................. 1167 Hogg, K.D .................. 1267Hallwell, D.G ............. 1893 Haylen, P.T ................ 1591 Hokanson, J.C .............. 2046Haillwell, N.A .............. 898 Hays, Jr., C.0 ............. 1580 Holand, I .................. 2009Haltlwanger, J.D ............ 919 He Xungul .................. 2825 Holford, D.M ................ 379

*Halvorsen, S.A .............. 118 Heald, J.D ................. 1758 Hollenbaugh, D.D ............ 827Ham, F.M ................... 1087 Healey, A.J ................ 2014 Holler, P ................... 990Ham, M.D .................... 846 Heck, B .................... 2800 Holllnger, F ............... 1059Hamada, K .................. 2701 Heck, B.S .................. 2411 Hollings, J.P .............. 2523Hamada, T.R ................. 860 Hedegaard, P ............... 1819 Holloway, D.C .............. 25420Hamed, M.A ................. 2417 Hedlund, J ................. 1597 Hollowell, S.J ............. 1140Hamilton, J.F.. 1148, 2030, 2500 Hedrick, J.K ........... 75, 1408 Holmberg, B.R ................ 91Hamklns, C.P ............... 1891 He Gao Cal ................. 1543 Holmes, P.J ........... 172, 2049Hammad, A.E ................ 2266 Hedstroi, G.W ............... 969 Holmes, R ................... 533Hammett, J.C ... 2454, 2455, 2456 Hein, N.W .................. 2409 Holihner, U .............. 1817Hammond, J.K ............... 1513 Heins, C.P ............. 13, 1357 Hoinma, H ................... 2785Hamon, H ................... 1951 Heitman, K.E ............... 1929 Hong, W.K.W ................ 1764Hamouda, M-N.H ............. 1342 HejazI, A ................... 264 Hong, Zhong-Yu ............. 1312Han, A.D .................... 327 Heller, H .......... 1927 Honma, H ................... 1473Han, Z.S ................... 2214 Helpensteln, H .............. 781 Hooke, C.J ................. 1108

*Hancock, G.J ............... 1591 Hemetsberger, J ............ 2314 Hoosac, T.M ................ 2206Hanna, D.S ................. 1238 Hemphill, R ................ 1572 Hopkins, D.M ............... 1483Hanna, S.Y ................... 20 Henager, C.H ................ 809 Honl, Y .............. 1993, 2217*-Hansen, J.S ................ 1496 Henneke, E.G ................ 952 Horl, M ................... 1709Hanson, D.B ................ 1619 Henneke, 11, E.G ........... 1540 Horonjeff, R ................. 65-Hanson, P.M ................ 1502 Henrlck, R.F ................ 707 Horowitz, S.J .............. 2632 0Hansson, T ................. 1959 Henrlcks, IN................. 527 Horsch, J.D ................ 1979Haoul, A ................... 1289 Henry, M.S ................. 2080 Horsten, J.J ................. 48

*Haran, S .................... 634 Henry, R ................... 1345 Horton, D.N.L ............... 823Harlharan, S.1l...1159, 1769, Heo, H ..................... 2565 Hortsen, J.J ................ 478

2018 Heppler, G.R ............... 1496 Hothersall, D.C ............. 462Harlow, Ml. ................. 1321 Herd, B.P .................. 2409 Houjoh, H .............. 211, 330Haroun, M.A ................ 2247 Hering, F.S .................. 39 Houser, D.R .......... 1050, 1143Harrington, T.P ............. 765 Herlufsen, H ............... 2067 Houwlnk, H .................. 477 0Harris, R.W ................ 1508 Herron, D ................... 572 Howard, G.E..679, 2256, 2258Harrison, J.A ............... 753 Hersteln, P.D ......... 145, 1775 Howe, M.S .................. 2764Hartemann, F ............... 1947 Herti, S ................... 2314 Hoynfak, 0 ................. 1986Hartman, Ill, G.A ............535 Hess, R.W .................. 1516 Hreha, M.A ................. 1080Haruml, K .................. 1471 Hlbbltt, H.D ............... 2365 Hrycko, G.0 ................ 1977Hasebe, M .................. 2446 HIda, Y .................... 1685 Hrynlewlcz, Z .............. 1470Hasegawa, T ........... 153, 1651 Hldaka, K .................... 72 Hsieh, B.J ....... 454, 776, 2592Hashimoto, H ............... 2730 Higgins, C.J ................ 910 Hsieh, J ................... 1054-Hashln, Z ................... 381 Hlghmore, P.J ............... 989 Hsu, C.S ................... 2103Hashish, E ........... 1333, 1668 Hllbrandt, E ............... 1940 Hsu, O.K ................... 1840Hata, S .................... 1920 Hildebrandt, J.G ........... 1748 Hsu, J.C ....................1493Hatamura, K ................ 1743 Hill, E.V.K ................ 1476 Hsu, L ................. 408, 409*

*Hatanaka, K ................. 537 Hill, S.C ................... 968 Hsu, L.C ................... 2255Hatfield, F.J ............... 117 Hillary, B ................. 1223 Hu, Mlng-Zhi ............... 256?Hattori, S .................. 139 Hilzlnger, K ................ 636 Hu Yu XMan .................. 782Hatwal, H .............. 365, 366 Hine, D.S .................. 1973 Hu, Zhl-zhong .............. 1197Hauck, L ................... 2233 Hlramatsu, K ................ 624 Huang, Dun-Pu .........1291, 1308Hauq, E.J .................. 2358 Hlrasawa, I ................. 640 Huang, J1 M ............... 1252Haughton, J.M .............. 1094 Hlrashlma, K.-l ............. 200 Huang, Jul-Tien ............ 1053 *-

Haupt, U ................... 1664 Hlrose, T .............. 427, 495 Huang, M ................... 1961Hausteln, B.-G ............. 2277 Hlrotsu, T ................. 2658 Huang, Ming-Ke .............. 530

92

Op"

Huang, S. Chi-Sun ........... 596 Imasu, K ................... 1331 Jamet, P .................... 689Huang, S.N ................. 2023 Imhof, Jr., E.J ............ 2000 Jamison, R.D ................ 549Huang, T.C .................. 2161 Imregun, M ................. 2208 Jamnla, M.A ................ 2543Hubbard, Jr., J.E .......... 1926 Inaba, T ................... 1674 Jan, Tysh Shang ............. 791Hubbard, M ................. 2761 Inamura, T ................. 2102 Janava, R.C ................. 840Hue, B ..................... 1951 Ingard, K.U ................. 284 JanotkovA, E ................ 729

Huelke, D.E ................ 1962 Inger, G.R .................. 530 Jansen, A .................. 2466Huelke, D.F .......... 1095, 1964 Inglebert, G ................ 219 Jardino, M .................. 194Huelsewig, M ................ 839 Ingraffea, A.R ............. 2294 Jay, R.L ................... 1662Huff, R.G .................. 2272 Inman, D.J ...... 947, 1186, 1288 Jendrzejczyk, J.A ..... 883, 2017

* Hughes, G ................... 934 Innes, D .................... 869 JenIk, P .................... 613 -" Hughes, M.E.................. 59 Inomoto, K .................. 139 Jennings, A................ 1548

Hughes, P.C ................ 2823 Inoue, J ............... 252, 938 Jennings, P.C .............. 2646Hughes, P.M.J .............. 2576 Inoue, N .................... 153 Jensen, D.W ................ 1721Hughes, W.F ................ 1689 Inoue, Y ................... 1835 Jensen, K ................... 692Hughes, W.J ................. 697 Inskeep, D.W ............... 1609 Jeon, G.J .................. 1487Hul, D ........... 512, 666, 670, loppolo, M ................. 2548 Jepson, D ................... 636

1719, 2712 Irani, F.D ................. 1524 Jettner, E ................. 1598Hulssoon, J.P ............... 333 Irle, T ..... 104, 106, 335, 671, Jewett, J .................. 1960Hulbert, G.M ............... 2100 1443, 1738, 1742, 2001, 2492 Jex, H.R ................... 1076Hulsewig, M ................ 2038 Irretler, H .... 2190, 2196, 2202 Jezequel, L ........... 509, 2416Humar, J.L........... 1589, 2384 Isenberg, J ........... 924, 1594 Jha, S.K .................... 820Humpert, R ............ 893, 1519 Ishlhara, K ................. 582 Jha, V.K ................. 61, 62 0Humphrls, R.R.. 579, 1035, 1895, Ishil, N .................... 1331 Jhaverl, D.P ............... 1757

2292, 2340 Ishlkawa, J ................ 1682 Jiang, Chen-Wen ............. 840Hundal, M.S ............. 71, 196 Ishikawa, M ................. 495 Jlngu, N .................... 119Hungerford, J.C ............ 2083 Ishikawa, T .................. 450 Jlnnoucht, Y ............... 2696Hunt, D .................... 1996 Ishlmaru, A ................. 693 JIrsa, J.0 ........... 1435, 1436Hunt, D.L ...... 1085, 1268, 2069 IshImaru, K ................. 313 Joachim, C.E .......... 528, 2032Hunter, J.K ................. 965 Ishlyama, S.-I .............. 300 JoanIdes, J ................ 1091Hureau, J .................. 1951 Ismall, F ................... 250 John, R .................... 2325Huseyln, K ................. 2769 Isogal, K ............ 1623, 1626 Johnis, T .................... 872Hussalnl, M.Y .............. 1178 Isozakl, T .................. 455 Johnson, A ................. 1954Huston, J.C .......... 1381, 1606 Issermann, U ............... 1620 Johnson, B.A .......... 679, 2256Huston, R.L .... 856, 1029, 1321 Ito, H ..................... 1323 Johnson, C.P .......... 396, 1297Hutchins, D.A ........ 2526, 2527 Ito, Y ..................... 2147 Johnson, D ................. 2607

Hutchinson, G.L ............ 1587 Iwamoto, T ............. 397, 972 Johnson, D.B ......... 1381, 1606Hutin, C ............. 1071, 1231 Iwan, W.D ............. 367, 1585 Johnson, D.E ............... 1494Hutton, P.H .......... 2094, 2343 Iwasaki, F ................. 2658 Johnson, D.P ................ 588

Huttsell, L.J ............... 619 Iwasakl, T ................... 87 Johnson, J.C ................ 470Hwang, C.S ........ 2268 Iwata, K .......... 72 Johnson, J.J ........ 2259 " "

Hwang, H............... 605, 606 Iwata, N................... 1012 Johnson, S.A ............... 1861Hwang, Tze-How ............. 1763 Iwatsubo, T ..... 431, 1467,1468, Johnson, T.M ............... 1190Hwang, Y.F ................. 2766 1469, 1565, 2695 Johnson, W ........ 274, 301, 304Hyams, M.R ................. 2822 Jonasson, H ........... 892, 2025 =

Hyde, D.W ................... 720 Jones, B.F ................. 1803 5Hyland, D.C ................ 1087 -J- Jones, C.M ................... 43Hylander, J ................ 2525 Jones, D.I.G ...... 81, 183, 236,

491Jacklln, S.A ............... 1618 Jones, G.J ................. 2331

-I- Jackson, C .................. 686 Jones, H.W ........... 2526, 2527Jackson, Jr., J.E.......... 2543 Jones, J.G.................. 277

Jacobson, I.D .............. 1400 Jones, M.S ................. 2699Ibanez, P .................. 1230 Jacobs, W.R .................. 82 Jones, N ................... 2253 0Ibrahim, R.A .......... 676, 2565 Jacobson, I.D ............... 295 Jones, R.L................. 2368Ibrahim, S.R... 1020, 1085, 1302 Jacoby, K................... 849 Jones, R.M.................. 895

2791 Jacquot, R.G ................ 319 Jordan, W.L................. 461Ichi, S .................... 2462 Jadvanl, H.M ........... 83, 2199 Jorlssen, S ................ 1353

Ichlryu, K ................. 1012 Jagengs, A .................... 8 Josh!, A .............. 1702, 2008Idlchandy, V.G ............. 2320 Jain, R.K ................... 867 Joshl, S.M ................. 1222IgarashT, T ................. 756 Jain, S.C .................. 1667 Josue, N.L ................. 1294IgIri, G .................... 392 Jain, S.K ............. 593, 2149 Ju, F .......... 1001, 1834, 1855 SIguar, S .................... 819 Jalnskl, T ................. 2304 Ju, F.J ..................... 997Igusa, T ............. 1057, 1506 Jikel, S ............. 1377, 1604 Ju, Frederick .............. 2597Ikeuchl, K ........... 1429, 2462 Jakobsen, B ................ 2009 Jung, J ...................... 25Iki, M ..................... 1982 Jakstas, A ........... 2226, 2464 Junger, M.C ................ 2249Imalchl, K ................. 1331 Jakubauskas, V ............. 2396 Jureviclus, J .............. 2227Imanishl, H ................ 1995 Jakubausklene, G ........... 2396 Jurkauskas, A ............... 314

9:1-O

. . ..-. :.. .. . . . . . . . . . . . . . . .

40

-K- Kassir, M.K ................. 385 Klmoto, H .................... 427Kasuba, R ................... 503 Klmura, K ............. 727, 2729

Kachadourlan, G ...... 1608, 1609 Katayama, K ................ 1002 Klmura, T .................. 1709Kadotsujl, A ................ 427 Kato, T .................... 2001 King, P.C .................. 1775Kaga, M .............. 1434, 2312 Katoh, A ..................... 87 King, R ...................... 27 -

Kaganas, V ........... 2467, 2468 Katorl, H ................... 650 Klnsky, D .................. 2091Kagawa, K .................. 1827 Katslkadells, J.T ........... 322 Klrchhoff, G .......... 764, 2316Kahane, C.J ................ 1100 Katz, C .................... 1016 Kirk, R.G .................. 1420Kal, T ..................... 1829 Katz, J .................... 1078 Klrkham, W.R ................ 480Kajlta, T .................. 1422 Kaufman, A ................. 2826 Klrshenbolm, J ....... 1226, 1527Kajlya a, M ................. 876 Kau[, S .................... 1359 Klssane, M.P ............... 1556Kako, T ................ 605, 606 Kavolills, A.P ............. 2120 Kltagawa, G ................. 221Kakuta, K .................. 2109 Kawahara, K ................ 2481 Kitahara, T ................ 1898Kaleps, I .................. 1403 Kawahara, M .................. 87 Kltayama, M ................. 104 •Kallierls, D... 1405, 1952, 1955 Kawahashl, M ............... 1747 Kltls, L ..................... 74Kalln'ak, D ................. 630 Kawal, R ...... 1467, 1468, 1469, KIttelson, D.B ............. 2118Kalnins, A ................. 1145 1565, 2695 Klttelson, J.K ............. 1656Kalpakidis, V.K ............. 1708 Kawakaml, H ................ 2394 Klaus, G ................... 1952Kalpakjian, S ..... 940, 941, 942 Kawano, H ................... 276 Klein, A.F .................. 837Kalthoff, J.F.. 1810, 2785, 2786 Kawaura, T ................. 1982 Klein, R.H ................. 1382Kamat, M.P .................. 777 Kaza, K.R.V .... 492, 1415, 1707, Klein, V ................... 2668Kamlgalto, 0 ................ 547 2195, 2707 Kllman, V .................. 2056 SKamlnsky, W ................ 1823 Kazao, Y ................... 2135 Klocker, M ................. 2639Kamlya, N ................... 547 Keefe, D.H ................. 1154 Kloos, K.H ................. 2774Kamman, J.W ........... 856, 1029 Keenan, W.A .......... 1909, 2538 KI6ppel, V .................. 1927Kammer, D.C ................ 1888 Keer, L.M .................. 1808 Klosterman, A.L............ 1249Kammerlnger, K ............. 1171 Kehlnde, L.0 ............... 1641 Kludt, F.H .................. 584Kan, H ..................... 1982 Kelleher, B.J .............. 1969 Kluesener, M.F ............. 1483Kana, D.D .................. 1595 Kellenberger, W ............ 2123 Klusmeyer, L.F ............. 1402

, Kanada, K .................. 1633 Keller, J.B ....... 704, 963, 965 Knabe, W .................... 482Kanada, T ................... 671 Keller, J.J ................ 2751 Knauss, W.G ................ 2780Kanaka Raju, K .............. 668 Keller, J.M ................ 1238 Knoche, H ................... 470Kanamaru, K ................ 1921 Kelly, J.M ........ 310, 311, 834 Knoll, G .................... 849 ..Kanayama, Y ................ 2775 Keltle, R.F ................ 1703 Knoll, J ................... 1687Kane, T.R ................... 406 Kempner, Jr., L ............ 2476 Ko, P.L.................... 1745Kaneda, K ................... 298 Kendrick, M ................ 2331 Ko, T ...................... 2175Kaneko, S .............. 862, 863 Kenefeck, M.N ............... 735 Kobayashl, A.S ......... 129, 961 "Kankeko, T ................. 2640 Kennedy, R.P ................ 398 Kobayashr, E ............... 1323 0Kaneta, M .................. 2696 Kennerknecht, H ............. 386 Kobayashl, Y ............... 2492Kang, B.S.-J ........... 129, 961 Kenny, W.D ................. 2059 Koch, J .................... 1997Kania, N ................... 2273 Keough, D.D ................ 2039 Kodan, N ................... 2408Kannlnen, M.F .......... 25, 2779 Keranen, L .................. 2430 Koehler, D.R ............... 1821

Kano, K.-I ................... 13 Keresztes, A ............... 1603 Koester, D.J ............... 1107Kapanla, R.K .......... 260, 2504 Kerlin, R.L................ 2188 Koh, Chan Ghee ....... 1367, 1593Kapoulltsas, G.M ............ 964 Kerman, B.R ................ 1163 Kohno, K ................... 2225Kappor, S.G ................. 635 Kern, D.L ............... 57, 2428 Kohno, T .................... 819 *

Kaprlellan, Jr., Z ........... 56 Kern, J .................... 2430 Kolke, H .................... 582Kapteln, D ................. 1932 Kessel, P.G ................. 217 Kojima, E .................. 2377Kapur, A.D .................. 664 Kewley, D.J ................ 1776 Kojima, H .................. 2053Karaballs, D.L ............. 1370 Khalll, T.B ................ 1401 Komatsu, K ........... 1780, 1829Karadag, V ................. 1665 Khalvatl, M ................. 937 Komatsu, M ................. 1613Karaklda, S ................ 2298 Khamenehpour, B............ 1058 Kominaml, K ................ 1677Karal, K .................... 118 Khaskla, A.-R.M ............ 1923 Komrower, J.M .............. 1224Karcher, K ........... 2078, 2677 Khavaran, A ................ 1165 Konczakowskf, A.L ........... 404Karchmer, A.M ............... 128 Khazzarl, E ................. 953 Korn, A .................... 2175Kareem, A .................. 2382 Khot, N.S ................... 777 Kortum, W .................... 76Kargaudas, V ............... 2555 Klbayashi, Y............... 1679 Kosawada, 7... 672, 1444, 2505Karlsen, A.J ............... 1365 Kibe, S ..................... 933 2731Karlsson, R ................ 1318 Kida, S ..................... 874 Koschmleder, D ....... ..... 2654Karmakar, S. ............... 232 KIdd, P.T ................... 399 Koshlba, M ................. 2298Karnopp, D ................. 1485 Kidder, R.E ................ 2013 Kosloff, D ................. 2302Karstens, D ................. 978 Klelb, R.E ...... 492, 1415, 2195 Kossa, S.S .................. 373Karthaus, W ................. 858 Kiger, S.A ....... 720, 925, 2536 Kosut, R.L................. 2429Kasal, H ................... 1434 Klkuchi, K ..... 1566, 1875, 2312 Kot, C.A .............. 454, 776,Kasal, K .................... 259 KIm, C.H ..................... 38 2592Kascak, A.F ................ 1889 KIm, K.S ................... 2780 Kotake, S .................... 47Kashlma, Y ................. 2498 Kim, Y.C ................... 2489 Koumousls, V.K ....... 2713, 2715Kasrale, K ........... 1978, 2436 Kim, Y.H ............. 1800, 1801 Kounadls, A.N ............... 322

94

l •. °

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N ~ L ---.- o

Kourl, J.V ................. 1740 4- Lee, L.M ................... 2037Koval, L.R ................. 2667 Lee, P.C.Y ...... 199, 1716, 1832

" Kovel, M.I ................. 2673 Lee, Seng-Lip ........ 1367, 1593Kozlk, T.J................. 1329 Laananen, D.H........ 1937, 2672 Lee, S.M ................... 1475Kozin, F ................... 255 Lablale, G ............. 483, 623 Lee, T.M ................... 1797Krasnlckl, E.J ............. 2443 Lacitignola, P ............. 2138 Lee, T.W ................... 1541Krause, D .................. 986 Lacoste, P ................. 2311 Lee, Ting W ................ 2604Krauthammer, T .............. 445 LaFontaine, R.F ............. 886 Lee, Y ..................... 2030Kroger, N.E ............... 2746 Lager, D ................... 2620 Leenders, P ................ 1204KreJsa, E.A ................. 128 Lagerkvist, L ............... 558 Leete, J.H ................. 1118Krenk, S .................... 675 Lagnese, T.J ........... 81, 1107 Lefebvre, D ........... 953, 1201Kriegsmann, G.A ........ 174, 691, Lahey, R ................... 1082 Legge, K.A ................. 2697 .-

1715 Lahey, R.T.C ......... 1934, 1935 Lehmann, K.0 ................ 986Krier, H ................... 2043 Lakestani, F ............... 2587 Lehrman, S.A ............... 1065Krishna, P ................. 1364 Lakkad, S.C ................. 739 Leigh, S.D ................. 1912Krishna, R ................. 2432 Lal, K.M .................... 110 Leighton, K.P .............. 1926Krishnamoorthy, S.......... 2242 Lalanne, M .................... 2 Lelpholz, H.H.E ....... 726, 1697Krishnan, V ................ 1181 Lalor, N ................... 1041 Lelssa, A.W ..... 512, 1666, 2209KrIshnappa, G ........ 903, 1537, Lam, Chun-SIng ............. 2011 Lelssa, W.W ................ 1719

2574, 2583 Lam, D ...................... 873 Lekszycki, T ............... 2437Krishnaswaml, P ............ 2616 Lam, P ..... ................ 1337 LeMay, I .................... 376Krodklewski, J.M ........... 2124 Lam, T ..................... 1009 Lenzi, A .................... 562Kropatscheck, M.0 ............ 927 Lambert, J ................. 1635 Leonditsis, A .............. 2495Kross, D.A ................. 2427 Lambert, R.G ................ 175 Lepore, F.P ................. 2372Kroutil, J.C .......... 171, 1575 Lamsa, A ................... 2316 Lesseller, D ................ 520Krueger, R.J................ 695 Lan, C.E ............... 50, 1392 Lester, H.C .... 1769, 2018, 2743Krumins, M.V ................. 85 Lance, G.M ................. 1551 Lesueur, C ................. 2716Kruzins, E .................. 890 Lanclotti, A ................ 545 Leu, M.C ................... 2638Krzyzanowskl, J ............ 1997 Landgraf, R.W ........ 1188, 1189 Leung, R ................... 1133Ku, G.C.C ............. 389, 1777 Landon, G ................... 444 Leung, Y.C ................. 1951Kuang, Jao-Hwa ............. 2568 Landre, S.M ................. 239 Leung, Y.T .................. 557 5KubIIlen, M ............... 1886 Langenberg, K.J ............. 390 Leurldan, J ................ 1264Kubo, K .................... 1995 Lankow, C .................. 2317 Leussink, J.W ............... 858Kubota, Y ................... 843 Lanni, G .................... 161 Leventhall, H.G.. 683, 703, 1634Kubozuka, T ................ 1875 LaPlante, R.F ............... 145 Lever, J.H ................. 2016Kudoh, Y ................... 1742 LaPointe, N.R .............. 1192 Leverenz, D ................. 572Kuers, G ................... 2798 Larsen, P.N ................ 2270 Levin, D ............. 1078, 1079Kuhl, A.L................... 525 Larson, R.S ................ 1622 Levine, H ................... 152 "Kuhl, I ................... 2754 Larson, V.H ................... 9 Levine, H.S ................. 912 .KuJawskl, D ................. 1795 Lasota, H .................. 2750 Levit, I ................... 2820Kuklta, Y ................... 457 Latcha, N ........ 105, 690, 1727 Lew, H.S ................... 1031Kukla, S ................... 1712 Lau, S.L ................... 2105 Lew, T.K .................... 436Kukreti, A.R...............2818 Laub, A.J..................1850 Lewis, W.J................. 2699Kulak, R.F ............. 568, 810 Lauchle, G.C ............... 2636 Leyendecker, E.V ............ 523

Kulkarkni, S.8 ............. 1755 Laudadlo, F.J .............. 2633 Li, Chang-Sheng ............ 1270Kulla, P.H ................. 1296 Laukkanen, J ................ 721 Li, Gulhua ................. 1055Kumar, A .................... 368 Laura, P.A.A ......... 1722, 2480 LI, Huzeng ................. 1225Kumar, B ................... 2770 Lauzier, C ................. 1088 Li, Heng-Lung ............... 841Kumar, N ................... 2657 Lawless, E.W ............... 2117 Li Ke Mal .................. 1339Kumar, V ................... 1064 Lawn, B.R .............. 956, 957 Li Nian .................... 1794Kumehara, H ................ 1686 Lawrence, Jr., F.V ......... 1999 LI, ...................... 1211Kundrat, J ................. 1509 Lawrence, J.S .............. 1784 Li, Yu-Cheng ................. 40Kung, Chaw-Hua Charles ..... 2790 Laya, E.J.................. 1596 Li, Zht-Hu ................. 1312Kung, L.E ................... 143 Lazzerl, L .................. 240 Liang, C.-G ................ 1551Kunleda, H .................. 1737 Leader, M.E ................. 686 Liao, P ...................... 82 0Kunleda, T ................. 1921 Leatherwood, J.D ....... 285, 827 Llaw, B.-M.B ............... 2297Kunow-Baumhauer, A... 1704, 1720 Lechner, H .................. 988 Libal, A .................... 338Kuo, A.-Y ............ 1807, 2255 Ledon, G .................... 320 Licursi, J.P ............... 1781Kuo, Ching-Liang ............ 263 Lee, B.H.K .................. 278 Lidstone, R.8 .............. 2062 . .:Kuppusamy, T .......... 665, 2101 Lee, Bor-Jen ............... 2736 Llebowltz, H ............... 1710Kurdzlel, E.P ............... 308 Lee, C ..................... 2338 Lin, A.N .................... 2646Kurkov, A.P .......... 1661, 2448 Lee, D.M ................... 1588 Lin, C.-W .................. 1151Kurokawa, E ................ 1658 Lee, G ..................... 1781 Lin, Chlh .................. 1302 0Kurtz, R.J ........... 2094, 2343 Lee, H.M .................... 297 Lin, F.S ................... 1199Kurzweil, L.G ................ 36 Lee, Hong-Ning ............. 1099 Lin, H.C ................... 1811Kustu, 0 .............. 438, 1757 Lee, J.K ............. 1666, 2209 Lin, Hua-Bao ............... 2539Kutter, H .................. 1922 Lee, J.N ................... 2724 Lin, I.C ................... 1357Kwok, K.C.S ................ 1591 Lee, L.H.N ................. 1015 Lin, Jeen-Shang ............. 265

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Lin, LI-Chung .............. 1307 Lyons, J.A .................. 231 Mantay, W.R ................ 1342Lin, M.J .................... 790 Lyons, M.G ................. 2429 Menu, C .................... 2294Lin, Ming-Chlen, J .......... 595 Mapps, D.J ................. 2321Lin. S.C ................... 2486 Marangoni, R.D ............. 1298Lin, N ..................... 1808 -- Marcantoni-Teddel, C ....... 2132Lin, W.H ............. 696, 970 Mrchetti, S ............. 2337Lin, Y.K ................... 1051 March-Leuba, J ............ 998Lindahl, J ................... 92 Ma, D.C ........... 26, 114, 334, Marc[, G .................... 543Lindberg, H.E .......... 162, 355 602, 803, 808 Marcus, J.H .... 1403, 1955, 1967Lindberg, Jr., R.E ......... 1786 Ma, Y ...................... 2788 Mrcuson, Il1, W.F .......... 797Llpp, L.J .................. 1833 Mabson, G ................. 1496 Marenco, G ................. 2234Liss, J .................... 2244 MacBaln, J.C ........ 1662, 2205 Marenco, S.G ............... 2136List, G.F ................... 1558 Maccamy, R.C.............. 1159 Maresca, C ................. 2550List, H.A .................. 1558 Macchl, A ................. 2332 Margolis, D.L .............. 1642LIt, K.S ................. 1893 MacGIlIIvray, P.J ......... 2601 Marinelll, M ............. 2332Little, Jr., C.D ........... 2041 Machado, J.C ............... 693 Markham, A ................. 268Litz, J .................... 1233 Macioce. D ................. 1828 Markui, ........ 97, 674, 2007Liu, Da-Kang ............... 2557 Macioce. D.J ............... 1115 Marmureanu, G .............. 979Llu Kaiguo............... 1736 Meclssaic, B.D........... 2601 Marsan, M........... 1158, 1166Liu, W.K ................ 26,114 Mackay, M .................. 1963 Marscher, W.0 .............. 248Liu, Wing Kam ............. 873 Maclaurin, B ............. 1981 Marshall, R. D ........... 2591Liu, Y.Y .................. 1199 Madden, R .................. 787 Martin, H.R ................. 137Liu, Ying-L ............... 1291 Madsen, E.L ................ 737 Mertlin, J.B ....... 357, 358, 362Llu, Yu-BIo .............. 2557 Madsen, N ................ 1295 Martin, K.F ......... 1260, 2610Ljunggren, S ............... 332 Maeda, K .................. 2092 Martin, M.R ............... 1277Lloyd, A.R ................ 358 Mafi, M ................. 2490 Martlnek, F .............. 2693Lo, En-Cen ................ 711 Maga, L.J ................. 136 Martinez, D.R ............ 1020Lo, K.K ..................... 384 Magneschi, P ............. 2200 Martins, C.A ............... 269Lockau, J ................ 2257 Mgrab, E.8......... 1479, 2641 Marute, Y................. 47Loewenthal, D .............. 2302 Mahajan, B.M ............. 1449 Maruyaa, K ......... 1435, 1686Lokberg, O.J ............... 2580 Maheady, T.M .............. 734 Marynowski, K .............. 2142 .Long, C.J................. 718 Maher, A ............. 217, 565 Masada, G.Y............... 996Long, J ..................... 615 Mahig, J .................. 2128 Mason, Jr., A.B ........... 367Long, L.N .................. 2212 Mahin, S.A ................. 1534 Masrl, S.F ................. 2821Longcope, D.B .............. 2037 Mahrenholtz, 0 ....... 2097, 2139 Massalas, C ................. 2495Longinow, A ........... 719, 2042 2196 Nesselas, C.V ........ 1708, 2726Longman, R.W............. 1786 Mal, Y.W ................. 1208 Msslnas, A ............ 68, 69Lopez, R.A .................. 195 Maldanlk, G ........... 136, 2772 Massoud, N ........... 1088, 2308Loprals, A .................. 591 Malson, B.F ................ 259 Messouros, G.P .............. 498Lorenc, J.A ................ 1891 MaJerowicz, S ....... 1836, 1837 Masuko, M .................. 2147Lorenz, E .................. 2676 Najumdar, B.C ....... 2685, 2686 Matheny, A.P ............... 2231Lorenz, R.A ................. 832 Mak, P ..................... 2039 Mathew, J ............ 1460, 2808Lorenzo, C.F ................ 422 Makansi, J ................ 2090 Mathews, F.H ................ 168Lovell, E.G.............. 1063 Mkarewlcz, R........ 141, 1173 Mathur, G.P .......... 751, 2024Lovell, J.E ................ 2660 Malanoskl, S.8 ......... 687, 2151 Matsoukas, G ............. 1208Loverich, E.B .............. 1492 Nalen, D.E ................. 1'72 Matsuhisa, H .............. 1651Lowell, E.D ................ 2118 Malik, M ......... 500,1669, 1670 Matsuoka, T ................ 1674Lowrey, D.L ................ 480 Malik, S.K ................ 2477 Matsushita, 0........ 1566, 2312Lu, L.K.H .................... 230 Malkin, S .................. 2683 Metsuura, K .............. 1340Lu, S.C .................... 2259 Nall, S .................... 1421 Matsuzakl, Y ................ 933Lu, Xtao-Pel .............. 841 Nalllarls, A.C........... 1597 Matsuzawa, K.............. 153Lucas, B.G .................. 706 Malllk, A.K ...... 365, 366, 1744 Nattern, R ................. 1405Ludowyk, C.J ................ 574 1755 Maubach, K .................. 805Luk, C.H ................... 2405 Meltha, J .................. 2113 Maurer, J .................. 2373Luk, Y.W........... 1247, 1254 Malvern, L.E ............. 2392 Nevrikios, Y ............... 29Lukens, R.W ................. 950 Mang, F ...................... 88 Kayes, I.W ...... 1330, 1341, 2129 :, - .Lundberg, 8 ................. 325 Manglavacchl, A ........ 20, 2488 Mayes, W.H ............ 44, 1930Lunlng, C.D ................ 1690 Mani, G .................... 1009 May-Miller, R .............. 939 .*

Luonga, A .................. 1694 Mankowski, R.R .............. 647 Maymon, G ................. 1456 . -

Lupson, W.F ................ 2228 Mann, J.Y ............. 476, 2228 Maynard, J.D ............... 697 ' •Lutes, LD ............ 791, 1018 Manna, R.K .................. 387 Maze, G .................... 2728Lutze, F.H ................. 1080 Mennava, S.R ............... 1010 McAllister, W.J ............ 179 -Lux, P ............. 1962, 1965 Manning, J.E .............. 468 McCalley, R.B ............ 1865Luzzato, E .................. 627 Manning, R.C ................ 877 McCann, B.E ............... 1820Lynch, E.J .................. 270 Manning, S.0 .... 475, 1800, 1801 McClellan. R.E ...... 2386, 2475Lynch, J.F .................. 709 Manolis, G.D ................ 796 McClintock, R .............. 981Lyon, R.H ............. 212, 1535 Menser, R ................... 619 McConnell. K.G. 2571, 2614, 2615Lyons, H................. 1998 Mansour, A................ 935 McCormick, J.M........... 1554

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McDermott, M ............... 1601 Mlksls, M.J............... 149 Morgan, J.E ................. 948McDlarmid, .1 ............ 1 797 Mikulas, Jr., M.M ......... 1713 Morgan, M.A ............... 968McFadden, P.D ........ 1841, 1842 Milenkovic, P ............... 897 Morgan, M.R ................. 657 f -

1843, 1844 Miles, J ................... 2235 Morgan, R.M .......... 1955, 19672098, 2600, 2812 Miles, J.B .................. 799 Mort, H ........ 1429, 1672, 2462

McGehee, J.R ................. 79 Miles, R.N ................. 1771 Mort, K ..................... 667 -

McGowan, R.S ............. 1622 MIllarke, P.R ............ 1246 Morlmoto, Y ............... 819McIntyre, M.E ............... 772 MIllavec, W.A ......... 924, 1594 Morimura, K ............... 1686McKay, J.T.......... 1675, 1676 Miller, C.A............... 807 Morino, L................. 56

" McKibben, J.S .............. 1983 Miller, G.A .......... 2057, 2058 Morlyama, T ............... 1434* McKIIllp, Jr., R.M ......... 846 2061 Moro, B ................. 2121

McLachlan, K.R .............. 179 MIller, H.A ................ 2027 Morosow, G ................ 2625McLaughlin, K.M ............ 2512 Miller, J.A ................ 799 Morris, B.L.............. 2044McMasters, J.H ............. 1627 Miller, R.K............... 2821 Morris, D.L .................. 79McNIven, H.D ........ 2519, 2520 Miller, V.R ........... 46, 472 Morris, J.B .............. 1919McQueen, D.H ................ 905 Millot, P .................. 2716 Morrison, 0 ........... 923, 1243McVerry, G.H ............. 2148 Milz, U ................. 2082 Morrison, 0.G.. 272, 598, 640Mead, D.J............. 97, 1475 Minasslan, M.N ............. 2243 1914Medelros, A.F .............. 2588 Mlndlin, R.D .......... 198, 2072 Morrone, A ................. 2047Meder, G ................. 880 Mingbao, H................ 337 Morrow, C.T .......... 242, 2578Medley, J.B ................ 2675 Minnetyan, L .......... 231, 1610 Mortensen, G.A ............. 2366Meo, O.J ................... 2515 Minten, M .................. 2585 Morton, J .................. 1799Meeks, S.W .................. 752 Mioduchowski, A ....... 356, 1812 Moser, P.J................. 392Meeuwsen, GA .............. 1503 Mirza, S ................... 1734 Mosher, M ......... 464, 465, 469Meher-HcmjI, C ........ 585, 1009 Mislcu, I ............. 945, 2694 Moss, D.S ................. 1802Mehta, K.B ............. 203, 932 Mitchell, J.S .............. 1846 Moss, P.J .................. 1903Mehta, N.K................. 435 Mitchell, L ................ 1325 Mostaghel. N ................ 833Mmhta, N.P ................. 1 311 Mitchell, L.D.. 785, 1242, 1247, Mote, Jr., C.D ...... 1441, 1512,Mel, C.................. 2310 1254, 1325, 1507, 2493, 2637, 2638Meier, G.E.A ................ 131 1681, 2322 Moutot, J.P ................ 428Meier, H.E ............ 209, 1013 Mitchell, M.R ........ 1391, 1489 MovsIslan, L.A ............ 2734 .Meier, R.H ............... 585 Mitschke, M ........... 1602 Mroz, Z ............ 2437'.. . .. . . . . .. . . . . . . .2437Meinhold, T.F .............. 2028 Mltsopoulou, E ............. 1699 Mudrlk, J ................. 1885Melbourne, W.H .............. 599 Mitsui, J .................. 1569 Muir, T.G................ 706Mellander, H .......... 1405,1963 Mitsuma, H .................. 204 Mulcahy, N.L............... 254 ."...Melton, R.G ........... 295, 1400 Mltt ann, J ................ 2567 Mulcahy, T.M ..... 401, 453, 608,Melvin, J.W ...... 32, 1964. 1965 Mitzel, F ................... 804 882

1968 MIwa, T .................... 1633 Mulder, J.A ................. 569Melzer, H.H ................ 2530 Mixson, J.S ........... 285, 2171 Mullens, J.A ................ 210Mendez-Adrlani, J.A........ 645 Mlyachlka, K............. 2690 Muller, G............... 2656Meneimeneh, A ............... 724 Miyake, Y .................. 1674 Muller, J .................. 1823Meng, Q ..................... 303 Miyazakl, N ........... 455, 1022 Maller, M .................. 2336Menge, CA ................... 36 Mizutani, K ................ 1327 Mundl, R ................... 1372Menger, R.P .................. 51 Mlakar, P.F ............ 23, 1060 Muniz, B ................... 2419Mengl, Y....... 1439, 2519, 2520 Moe, G ................... 127 Munro, D.................. 284Mercadante, R .............. 2671 Moffitt, R .................. 636 Munro, N .................... 39 .Meredith, D ................. 299 Mohaumadl, J ................ 719 Mura, T .................... 541Mertz, H.J ................. 1402 Mohammadioun, B ............ 2760 Mural, S ................... 1323Mscall, J ................. 160 Mohler, R.R ............... 2268 Murakaml, S ................ 353Metcalf, Y. ............... 1930 Mohrl, Y .................... 879 Murakaml, Y ................. 495Metcalfe, A.V ............. 836 Mokadam, D.R ............. 2207 Muranatsu, S ............. 1331Meyer, C ............ 439, 1554 Mokhtar, M.O.A ............ 1992 Muramoto, Y .......... 335, 1443Meyer, M.E............... 1489 Moler, C.B ................. 2360 Murase, K .................. 650Meyer-Ebrecht, D .......... 2800 Mollerus, F.J ............. 1373 Murln, J ............ 642, 2003Meyer-plening, H.R ......... 482 Mollestad, E ................ 342 Murlllo, L.E .............. 1627 -Meyers, G.E ............... 2538 Molnar, A.J .............. 3, 223 Muro, H .................... 2092Mi.o, IN ..................... 489 Mondy, R.E ................. 1420 Murphy, J.D ................ 392Michael, A.Y .............. 1545 Monroe, Jr., P.C ............ 757 Murphy, J.R ................. 926Michelberger, P ........... 1603 Montalvo, F ..............1 962 Murphy, M.T ............... 715MIchimura, S .............. 2450 Montana, P.S ............... 1654 Murphy, N.C ................ 2427Mldha, A ............. 1552, 1553 Month, L.A ................. 2822 Murphy, R.C ................ 1420Miele, A .................... 237 Noodle, T.B ................ 1813 Muscollno, G ......... 1363, 2548Mielke, Jr., I.R .......... 1010 Mook, D.R .................. 1164 Mussman, D .................. 619Mleras, H ................... 388 Moon, F.C .................. 1129 Muszynska, A ........... 236, 491MIgnogna, G.M ............... 802 Moore, F.K ..... 1881, 1882, 1883 Mutch, G.F ........... 1130, 2809Mlhara, K .................. 1679 Moore, J.A .................. 468 Muthukrishnan, M ........... 2193Mlkaml, T ................... 866 Moore, T.N ................. 1942 Myers, C.J ................. 2687Mlksch, M ................ 1754 Mooring, B ............... 1601 Myers, G................. 2465

97

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...................

-N- Nerlya, S.V ................ 2463 Oehlberg, R.N .............. 2366Nessler, G.L............... 1229 Ogawa, K ................... 2282Nestegard, A ............... 1615 Oh, B.H .................... 2065

Necar, A .................... 609 Netter, G ................... 513 Oh, K. Ping ................. 850Neck, W.V .................. 2182 Neubert, V.H ......... 2435, 2436 Ohashi, Y .................. 2299Nadolskl, W . 356, 1036, 1187 Neuss, C.F .................. 259 Ohayon, R .................. 1301

1812 Newman, Jr., J.C ............ 382 Ohkubo, T .................. 2462Naess, T ................... 2451 Newman, J.S ................ 1390 Ohmata, K .................. T482Nagae, Z................... 537 Newton, S.G................ 1893 Ohno, K.................... 200Nagafugl, T ................. 843 Nguyen, N.Q ................ 1489 Ohno, S ..................... 902 .. -Nagalke, M ............ 397, 1573 Nguyen Van Khang ........... 2762 O-Hor!, M ............ 1354, 2640 - .

Nagamatsu, A.... 397, 972, 1573, Nguyen-Xuan-Hung. 2496, 2727 Ohta, K.................... 18272450, 2577 Nguygen, H .................. 708 Ohta, M ................... 2531 = -

Nagashima, T ......... 1362, 2552 Niblett, L.T ................ 649 Ohte, S .................... 2498Nagaya, K ...... 677, 1696, 2053, Nicholson, D.W....... 947, 1186, Ohtsukl, A ................. 1471

2054, 2245 2540 OJak, W .................... 2169Nagayama, I ................ 2109 Nicholson, R.W ............. 2248 Oka, N ..................... 1915NagI, A ..................... 392 Nicolas, 0 ................. 2218 Okada, Y ............. 2612, 2613Nagpal, A.K ................ 1359 Nicolas, K.R ................ 896 Okamura, C .................. 843Naito, T ................... 1679 Nichols, C.S ............... 2027 Okamura, H ................. 1876Naltoh, M .................. 2701 Niedbal, N ................. 2309 Okamura, T .................. 876Nakada, K .................. 1116 Nlgm, M.M ................... 177 Okazaki, M ................. 1824Nakagawa, T .......... 1468, 1469 Nihous, G.C ................ 1102 Okubo, N ............. 1245, 1248Nakal, M ................... 1650 Nilsson, A.C ............... 2659 Olabimtan, A ............... 1450Nakamura, K ................ 1679 Nilsson, J.O ................ 741 Oldham, D.J ................. 889Nakane, W .................. 2299 NiIsson, L.R.K ............. 2140 Olhoff, N ...... 1878, 2356, 2491Nakano, M ............ 2301, 2469 Ninmer, R.P ................ 2827 OlIkara, P .................. 852Nakano, Y .................. 2134 NInomIya, K ................ 1422 Oliveira, C.S .............. 2642Nakao, A .................... 397 Nishimura, T ........... 300, 650 Ollveto, G ................. 2547Nakashima, H...............2092 Nishino, S.................1685 Olsen, Jr., A.D............2173Nakata, S .................. 1677 Nishloka, K ................ 1898 Olsen, D.E ................. 1632

*Nakatsugawa, Y ............. 1327 Nlshloka, T..186, 1806, 2782 Olsen, N .............. 991, 1232Nakayama, H ........... 860, 2775 Nishiwaki, S ................ 252 Olson, L.G .................. 944

- Nakayashlkl, A ............. 1995 Nisitani, H ................ 1498 Oneal, R.L................. 2171* Nakra, B.C ................. 2293 Nix, K.J ................... 1202 Ong, C. .......... 347, 348, 349

Namba, M ................... 1451 Noble, M .................... 442 Ookuma, M .................. 2577Namatame, K ................. 457 Noble, 14.1................. 560 Oravskj, V ........... 1884, 1885Nindsl, T .................. 2006 Noblesse, F .................. 37 Orcic, B ................... 2133 .Napadensky, H .............. 2042 Noga, J.T .................. 1562 Ordubadf, A ................ 1276Naraln, I ................... 444 Noll, T.E.................. 1624 Orloff, K................ 2324Narayanan, S............... 1739 Nonaml, K .............. 246, 247 Orlowski, R.J.............. 1647Narita, Y ............ 1442, 2501 Nordmann, R .......... 1332, 2306 Orth, C.L ...... 1524, 1608, 1609 -.Narmon, B .................. 1209 Normann, N ................. 2799 Ortlz, L.A ................. 2264Narumi, Y .................. 2299 Norris, A .................. 1715 Oilejiek, 0 ................. 729Nash, C.D ................... 185 Northrop, J ................ 2534 Ostiguy, G.L............... 1113 -:

Nash, P.T .................. 1910 Notch, J.S ................. 2645 Oswald, F.B ................. 502 ONash, R.W ................... 534 Notoml, T .................. 1451 Ota, H ..................... 1327Nashif, A.D ................. 183 Nour-Omld, B ............... 2817 Otawara, Y ................. 1012Nason, R ................... 2286 Novak, M .................... 374 Otis, D.R .................. 2055

• Nasuda, T .................. 2217 Noval, J.M ................. 1350 Otto, P .................... 1409Nath, Y ............... 867, 2720 Nowak, M ................... 1203 Overvik, T .................. 127Natke, H.G ............ 416, 1014 Nuckolls, C.E .............. 1937 Owczarek, J.A .............. 1413Nau, J.M ................... 2807 Nusholtz, G.S ........ 1962, 1965 Owen, G.N ............... 17, 438Navaneethan, R ............... 45 Owens, D.H .................. 519Nawwar, A.M ................. 951 Oylbo, G.A ............ 659, 1072Nayfeh, AM ...... 176, 364, 770, -0- Ozakat, T ................... 539

1480, 1481 Ozaki, M................... 1915Neathammer, R.D ............ 2170 0zgven, H.N ......... 1328, 1335

Neerhoff, F.L.............. 2814 Obal, M.....................63 zkan, Z.L................. 1328Nefske, D.J ................ 2162 Obeid, V .................... 590Nelswander, R .............. 2430 O'Brasky, J.S ........ 1908, 2034 •Nelson, D.V ................ 1423 O'Brien, R .................. 572 -p-.Nelson, J.T ................ 2166 O'Callahan, J.C ...... 1133, 1257Nelson, P.A ............ 130, 898 Ochs, Jr., R.L............. 697Nelson, P.M................ 2413 O'Connell, M.R............... 57 Pace, N.G.................. 1170Nelson, T.A ................ 2159 Oda, J ................ 874, It16 Padovan, J ............ 728, 1337Nepomuceno, L.X ....... 562, 1847 Oda, S ..................... 2690 Paez, T.1....... 997, 1001, 1834Nerl, L.14.................. 1937 Oden, J.T.................. 1559 1855, 2597

98

..

Poe, N.W .................. 2515 Pavi1,, G ................... 2005 Pfnnfngton, R.J ............ I568Palpetls, S.A ........ 1283, 1848 Pavlovic, M.N ......... 861, 2497 Plntz, A .................... 503Pakstys, M.P ............... 1224 Payne, B.F ........... 1522, 2075 Piquette, J.C ............... 694Pal, A.K.................. 1814 Payne, J.B ................. 2110 Pister, K.S ................ 1437Pal, O.K ........... 2685, 2686 Payne, N.J .................. 67 Pizzigoni, B ............. 2143Pal, P.C ................... 1214 Payne, P.R ................. 2167 Platte, M ................... 980Paldas, N .................. 2549 Paz, N ...................... 768 Plaut, R.H ................. 2491Pallonils, A ................. 314 Pazslt, I ................. 2598 Plunkett, R ................ 1486 SPallunas, V .......... 2237, 2478 Pearce, B.K............... 2595 Pluvinage, G ............... 1198Palladino, J.A ............. 1259 Pearce, H.T .......... 452, 2824 Plzak, G.A ................... 46Palliln, R.A ............... 2224 Pearce, T.R.A ............. 2145 Pobanz, N.E ................. 585Palma, F ................... 1461 Pearson, J.T .............. 2246 Pohlman, J.C ............... 2236Palmer, D.R ................ 1169 Pearson, MA .1............. 1559 Polak, E ................... 2357Palsson, H................. 1584 Pearson, LW ............... 391 Polthier, K ................ 1052Palusamy, S.S .............. 2566 Pecinka, L ............... 2402 Pomerening, D.J ............ 1595Pan, Tso-Chton .............. 834 Pecker, A ................ 2760 Pons, A .................... 2216 •Paneyotounakos, D.E... 318, 2705 Pedersen, O.Z ............. 400 Poole, L.A ................. 2745Panda, P.K ................. 1364 Peeken, H ................. 849 Pope, L.D .................... 44Pandelldis, 1.0 ............. 1826 Peel, H.H ................. 1402 Popov, E.P .................. 641Pandey, P.C ................. 435 Pei Wen Jin ................ 717 Popplewell, N ...... 19, 178, 179Pandey, R.K ................ 1798 Pekala, W ............. 824, 2345 Porat, I ................... 1877Pandit, S.N ................ 1311 Peleg, K ................... 2438 Porter, M .................. 2748Pannantonl, R.F ............ 2269 Pence, T.J ............. 187, 857 Porter, T.R ................. 550Panvalkar, A.S ....... 2441, 2442 Peng, Zemln ................ 1046 Portier, B ................. 2698 *

Peo, Y.-H ........... 389, 1777 Pennlment, S.P............ 1859 Potiron, A............... 507Papadakls, C.N............ 1427 Penny, J.E.T ............... 1108 Pound, N.J .................. 969Papedopoulos, C.A ........... 786 Peppln, R.J ................. 155 Pourmovahed, A ............ 2055Papadopoulos, P.G ........... 214 Perdrix, N ................. 2587 Poursartlp, A ............. 2295Papakyrlakou, M.J .......... 1586 Pereira, J.M ............... 1950 Powell, C.A .............. 2667Papalmbros, P .............. 841 Peretti, L ................. 2426 Powell, G.H .............. 2523Papastavridls, J.G .... 216, 226, Perez, A.J ................. 1006 Powell, R.E .............. 1521

407, 2816 Perez, R.B .................. 998 Powell, R.F .............. 1825Papez, S ................... 1044 Perkins, D.L ............... 1424 Powell, S.J ............... 261 .-.

Pappas, R.A.............. 2343 Perl, M ............. 186, 1809 Power, R.B............... 1349Paramodiliok, 0 .............. 728 Perrefra, N.0 .............. 1175 Powers, D.R ............... 60 "- . " -

Parbery. R ................. 1878 Perrln, R ................... 115 Powers, E.J ............... 1131Pardee, W.J ................ 2573 Perry, F.C .................. 983 Prabhu, T.J ................ 501Pardoen, G.C ..... 16, 1274, 1644 Perry, W.L................ 1690 Pramlla, A .................. 721

t903, 1904 Perumpral, J.Y ............. 2101 Pramono, E .................. 788Parker, G.R ................ 235 Pessanha, J.A.0............ 1023 Prasad, M............... 1723Parker, J.E ................. 799 Peters, D.A .......... 1395, 2175 Prasad, N.G ............ 249, 351Parker, K.J ................. 738 Peterson, B.A ............... 213 Prathap, G ................. 1705 .,.

*Parker, R ................. 1663 Peterson, E............. 2069 Prelsser, J.S........ 2424, 2634Parker, R.P ................ 1943 Peterson, J.C ............... 600 2743Parker, W.H ................. 182 Peterson, R.L.............. 464 Prescher, K ................ 2376Perkins, D.W ................ 939 Petersson, B ................ 660 Preumont, A ................ 2655Parkinson, A.G........... 2335 Petrequin, P............. 2560 Prevost, J.H............. 2104Parnes, R ................... 371 Petty, S.P.F ............... 1600 Price, J. ..... 2454, 2455, 2456Parrott, T.L ......... 628, 2743 Petuelli, G ............... 643 Prlebsch, H.H .............. 2445Parsons, K.C.............. 1944 Phfiippacopoulos, A.J ....... 807 Prinz, R ................... 1499Parszewskl, Z .............. 2052 2285 Priolo, P .................. 1730 ."..

Parszewskr, Z.A ............ 2124 Phillipe, J.J .............. 2204 Pritchard, R.S ............. 1463 - -

Partlngton, A.J ............ 2203 Phillips, D ................ 1539 Pritz, H.B ................. 1950Partridge, M ................. 75 Phillips, R.G .............. 2412 Prochazka, I ............... 1372Partyka, S.C ............... 1945 Phillips, W.H .............. 2187 Prydz, R .................... 285 0Parzen, E ............. 974, 1329 Plaszczyk, C.M .............. 154 Prydz, R.A ................. 1386Pascal, N.T ................ 2218 Picco, E ................... 1796 Pullwltt, E ................ 1953

Pascoe, K.J ................. 958 Plche, R .................. 1697 Punwaml, S.K ............... 1525Pastrnak, J.W ........ 1101, 1271 Picklemann, M.N ............ 1973 Purvlance, J.E ............. 2602Patel, A ....... 1947, 1951, 1958 Picone, M .................. 908 Purvis, J.W ................. 282Patel, A.B ................. 1798 Plelorz, A .... 356,1036,1187,1812 Pusey, H.C ............ 243, 2661Patel, M.H .................. 270 Pierce, A.D .......... 710, 1160Patient, J .................. 262 Pierce, P.R ................ 1385 .Patrick, L .......... 1256, 1266 Pletrowski, R ............ 2059Patrlkalakis, K. ..... 122, 123, Plicher, J.A ............... 2607

124, 125, 126 Pilkey, W.D ..... 74, 2612, 2613Patrone, H. ................ 909 Pilial, T.A.K ............... 147 QIn, B ................. 661, 662Paulay, T................ 1360 Pinkney, R.B............... 19 Qln, Jun................. 1262 " -

99

.Ai

,:-~~.. .. . .. . . ........ ..-.......... . . . , • •..-,...•,.,..

Qlngchun, Y ................. 337 Rawls, E.A ................. 2427 Robbins, D.H ............... 1964Qlu, Yang .................. 1281 Ray, A ..................... 2606 Roberts, A.K ............... 1638Quadt, H.P .................. 142 Rayes, L.G .................. 999 Robin, C ................... 1198Quanta, F .................. 1013 Razzaq, Z .................. 1713 Robinson, D.W ................ 66Quantz, C.A ................ 1167 Reason, J ..................... 6 Robinson, J ................ 2415Quayle, B .................... 45 Rebello, C.A ................ 508 Robinson, J.K ........ 2454, 2455Quentin, G ................. 1839 Rebont, J .................. 2550 2456, 2457Quinn, R.D ................. 2222 Reckling, K.A ............... 275 Robinson, K ..... 570, 1028, 1862Quintana, J.V ............... 561 Red, E ..................... 1601 Roblyer, S.P ................ 765 -.-.

Redd, F.J .................. 2674 Roche, R ................... 2560 . .. . .Reddy, A.K ................. 2579 Rocklln, G.T .... 1249,1268, 1509 "" "

-f", Reddy, D.P ..... 2391, 2404, 2513 Rodden, B.E ................ 1948 -. ' . -

Reddy, E.S ................. 1744 Rodklewicz, C.M............ 1670Reddy, G.N .................. 982 Rodriguez, D.A .............. 532 . .

Racca, Sr., R .............. 1645 Reddy, J.N ............ 665, 2735 Roeder, C. W ................ 638 0Radcliffe, C.J ............. 1973 Reddy, P.V .................. 83 Rogel, E .................. 2378Raddatz, W.D ................ 767 Reding, J.P ..... 755, 2545, 2767 Rogers, G.W ................. 588Rades, N ............. 1019, 2569 Reed, J.N ................... 378 Rogers, S.C ................ 1640Radon, J.C ........... 1200, 1202 Reemsnyder, H.S ...... 1195, 2057 Rogerson, A ................. 989Radovlch, V.G .............. 2116 2058, 2061 Rognonl, V ................. 2342Radu, C ..................... 793 Reese, J.M .................. 151 Rohl, L .................... 2376Raghavacharyulu, E ......... 2657 Reese, T ................... 2656 RoJansky, M ................ 2406Rahlml, A ...... 1441, 1512, 2493 Rega, G .............. 1694, 2472 Rokne, J ................... 2066 0Rainer, G .................. 2445 Regan, F.J ................... 85 Romander, C.M .............. 2157Ralthel, A ................. 2010 Regoord, R ................. 2418 Romanus, B ................. 1959RaJ, A ...................... 499 Reich, M .......... 604, 605, 606 Romberg, T.M ............... 1508Rajabl, F .................. 2488 Relchert, J.K .............. 1948 Ronen, A ................... 2683Rajagopalan, A .............. 816 Reid, S.R .............. 305, 359 Rooke, D.P .................. 542Rajamani, A ................ 2441 Reldelbach, W.............. 1946 Roos, H.N .................... 49Rajan, S.D ................. 1320 Reif, Z.F .................. 1942 Roos, M.S .................. 692Rajendran, A.M .............. 535 Reifsnlder, K.L ........ 549, 952 Roovers, M ................. 1209Rajesham, S ................ 1183 ReIlly, R.J .................. 46 Rosakis, A.J ............... 2784RaJkumar, B.R .............. 1524 Reinath, M.S ............... 2324 Rosario, E .................. 392Rakheja, S ............. 80, 2180 Reinhelmer, P ............... 433 Rose, J.H .................. 1838Rakhlmov, E.R .............. 2130 Reinhold, T.A ............... 792 Rosen, A .............. 844, 2714Rakhmatullaev, A. Sh ....... 2130 Reis, A.J .................. 2642 Rosengren, P. .............. 914Ram, K.S ................... 1755 Reiss, E.L....... 174, 691, 1715 Rosenhouse, G ........ 1724, 1725Ramakrlshnan, C.V ........... 112 1752, 2748 Roskam, J .................. 2271Ramakrishnan, P ............. 739 Remington, P.J ......... 36, 2165 Ross, C.A .................. 2392 - ..Ramana Rao, V.V............ 2198 Remmers, G.................. 197 Ross, C.T.F................. 872Ramirez, H ................. 1435 Ren, L.X .................... 325 Ross, M.1................. 1760Ramkumar, R.L............... 328 Ren, W ...................... 337 Ross, N.F .................. 2413 -Ramulu, M .............. 129, 961 Ren Wen Tang ................ 625 Ross, R .................... 2532 .Rand, 0 .................... 2714 Repa, B.S .................. 1970 Ross, T.J .................. 1432Raney, E.M .................. 912 Repaci, A .................. 2355 Rossi, F ................... 1680Rangacharyulu, M.A.V ........ 725 Reshef, M .................. 2302 Rossing, T.D ............... 1141Rank, E .................... 1016 Revell, J.D ........... 285, 1386 Rossini, T ................. 2332Ranky, M.F ............. 111, 663 Revesz, Zs ................. 1149 Rossler, J ................. 2691Ranlet, D ................... 778 Revill, G.W ................ 2228 Rossow, M.P ................ 2175Ranney, T.A ................. 831 Rezabek, S.E ............... 1945 Rost, R .................... 1182Ranucci, D ................. 1796 Rhodes, D .................. 1202 Rost, R.W ....... 749, 1228, 1505Rao, D.K................... 1570 Richardson, Jr., A.S ....... 2551 Roufalel, M.S.I............. 439Rao, J.S ......... 83, 1988, 2198 Richardson, J.J ............ 2830 Roumagoux, J ............... 1272

2199, 2657 Ricketts, R.H ......... 280, 2670 Rousselot, J.L............. 2728Rao, K.N.V.P ............... 2242 Rickley, E.J................. 54 Roussos, L.A ............... 2667Rao, M.K................... 1300 Riebe, G.D ................. 1625 Rouverol, W.S .............. 1112Rao, P.R ................... 1732 Rleger, N.F .......... 2211, 2339 Row, D.G ................... 2523Raptis, A.C ............ 696, 970 Rlegner, D.A ............... 1493 Roy, A.K ................... 1486Rasmussen, G ......... 1156, 1523 Rlehle, P.J .... 1220, 1578, 2444 Roy, R ...................... 885Rasmussen, P ............... 1156 Rienstra, S.W .............. 2263 Rubin, L.1 .................. 592Raspet, R .............. 626, 713 Rihak, P ................... 2123 Rubin, M.N ................... 12Rasson, J .................. 2319 Rimer, M ............. 2419, 2671 Rudd, J.L................... 475Rauch, F ................... 2419 Rlpoche, J ................. 2728 Ruddell, M ................. 1483Rauser, M.................. 1639 Rlveland, MA................ 505 Rudder, Jr., F.F ..... ;...... 789Rautenberg, M .............. 1664 Rivin, E .................... 632 Rudgaiviene, N ............. 2237Ravenhall, R ............... 2827 Rlvln, E.i .................. 904 Rudy, M.D .................. 1414Ravichandran, G ............ 2787 Rizal, H.M ................. 1858 Rueger, J.M ................ 1236Rawlins, A.D ................ 144 Rizzo, F.J ................. 2755 Ruging, I ................... 793

100

... .. . . . . . . . . . . . . . . ..• -~~~~...-............................,.-,............ .. ..- S.-,:-, .,.,....*.....,:.,...,..,. - . . ,,,-". :: :",

Ruhlin, C.L ................. 280 Saravanamutto, H.I.H ....... 2601 Schallhorn, K .............. 2326Ruhnow, R.F ................ 1347 Sarfeld, W ................. 2373 Schomer, P.D ..... 618, 622, 2170RulJgrok, C.J.J ............. 471 Sarin, S.L................. 1932 Schops, V ................... 764Rumpf, H.G .................. 955 Serlna, J.C ................. 292 Schrader, W ................ 1759Rundle, F.M ................. 802 Sarma, B.S ........... 1700, 1705 Schreck, S.J ............... 1783Runow, P ................... 1004 Sarma, K.V .................. 113 Schubert, F ................ 2797Ruppen, J.A ................. 960 Sarra, M ..................... 73 Schuckman, B ............... 1215Rurlk, I ................... 1911 Sarrallhe, S ............... 1938 Schucktanz, G .............. 1754Rushton, K.R ............... 2699 Sasaki, Y .................. 2702 Schuette, A ................ 1003Russell, L.T ......... 2526, 2527 Sassi, H ................... 2821 Schuetz, D ................. 1207Russell, R ........... 1509, 2809 Sata, T................... 2102 Schulten, J.B.H........... 2635Russell, S.S .......... 402, 1540 Sathoff, H.J ................ 737 Schulthes, M ................ 977Rust, H.J .................. 2761 Sathyamoorthy, H ...... 108, 1144 Schultz, D.M ................ 441Ryall, T.G ........... 1790, 1857 1723 Schultz, T.................. 65Ryland, G ................... 224 Sato, H .......... 95, 1354, 2640 Schulze, H.D ................ 954

Sato, M .................... 1375 Schumacher, R.T ............. 772Sato, S....................1651 Schuszter, M................758

-$- Sato, T .............. 1682, 2225 SchUz, I ................... 1759Sato, Y .............. 1248, 1876 Schwaneke, A.E .............. 534

Saatcloglu, M ............... 134 Sattinger, S.S .............. 208 Schwarmann, L ............... 551Saccenti, P ................ 2234 Saul, R.A .................. 1967 Schwartz, H.B ............... 655Sacchl, G .................. 2121 Saurenman, H.J ............. 2166 Schwarz, K ................. 1380Sackman, J.L............... 1506 Sause, R ................... 1517 Schwelger, W ............... 1171Sadek, .A ........ 10, 522, 1356 Sawanoborl, T ............... 842 Sclavounos, P.D ...... 1614, 1615Saemann, E.-U .............. 1235 Sawyer, J.W ................ 2431 Scott, P.M ................... 24Safar, Z.S ................. 2684 Sawyer, W.G ................. 718 Scribner, C.F .............. 1763Safwat, H.H ................ 2653 Saylan, S ................... 22 Sedillot, F ................. 855Safford, F.B ............... 1533 Scala, C.M ................. 1000 Sedney, R .................... 64Sagartz, M.J ............... 2252 Scala, M ................... 240 Seering, I ................. 1521Saha, P .............. 1160, 1526 Scanlan, R.H ............... 2643 Seetharamulu, K ............ 2242Saha, S ..................... 982 Scarbrough, J.D ............ 2603 Segel, L ............... 293, 294Sahay, C ................... 1692 Schadel, 0 .................. 955 Sehltoglu, H ........... 418, 419 - .Sahinkaya, M.N ...... 1418, 1671, Schaefer, R.A .............. 1495 Seidel, D.A ........... 531, 2670

2796 Schajer, G.S ............... 1430 Seifert. P .................. 976Sahlil, A.H................. 2494 Schall, P .................. 2323 Selreg, A ................... 935Said issa, M.E.-S........... 653 Scharnhorst, K.P............ 744 Seklguchl, H............... 1791Salgal, S .................. 2240 Schaudinischky, H.......... 1761 Selskaja, N................ 2281St. Vincent, M .............. 731 Schawann, J.-C .............. 271 Semenek, M.P ............... 1678Salto, H ............. 1684, 2710 Schechter, R.S .............. 511 Sengupta, S ................. 112 .Salto, S ................... 1334 Scheldl, R ................. 2288 Senjanovic, I ............... 218Sajben, M ............. 171, 1575 Schelby, F ................. 2074 Senter, P.K ................ 2622Sakal, K ................... 1375 Scherrer, H.C .............. 2118 Sea, Y.G.T ................. 2014Sakata, H .................. 1920 Schlbanow, E ................ 644 Seong, Chun Kyung .......... 1582Sakata, M ....... 727, 1709, 1743 Schlehlen, W ........... 369, 733 Sermet, E .................. 2254

2729 Schlehlen, W.0 ............. 1510 Sert, B .................... 1011Sakell, L .................. 2757 Schilling, C.G............. 2379 Seshadri, V................ 2198Sakurai, K .................. 876 Schilling, H ............... 1458 Seth, B.B .................. 1278 -Salama, M .................. 2426 Schilling, U ............... 1445 Sethi, M ................... 2369Salomon, R ................. 2750 Schilling, W................ 526 Sethna, P.R................ 1751Salamone, .J .......... 584, 757 Schimmel, D.E ................ 33 Seto, K ..................... 298Saliba, H.T ................ 2722 Schirmer, I ................ 2277 Severson, S.J .............. 2292Salikuddin, M ............... 888 Schlack, A.L................ 565 Severud, L.K................ 884Saltsman, J.F .............. 2229 Schlinker, R.H ........ 847, 1396 Sevin, E .................... 447Salzbrenner, R .............. 960 Schlunder, I ............... 1896 Seybert, A.F ......... 1157, 2755Smalil, B .................. 2383 Schmidt, D.K ............... 2174 Seznec, R .................. 1213Samaras, E.F ............... 1290 Schmidt, G ........... 1405, 1955 Sgrol, V ................... 2151Samin, J.CI ................ 2191 Schmidt, K.J ............... 2202 Shabana, A.A .......... 177, 2303Samuelides, E...............296 Schmidt, R.J ............... 2108 Shah, A.H..............19, 1447Sandford, M.C .............. 2670 Schmled, J .................. 526 Shah, H.K ................... 926Sandor, B. ................. 539 Schmillen, K ............... 1896 Shah, S.P .................. 2325Sandoval, N.R .............. 2046 Schmitz, F.H ............... 1616 Shah, V.N ............. 215, 2161Sankar, C ................... 178 Schmitz, V .................. 990 Shaliwal, R. S ............. 2066Sankar, S .......... 78, 80, 434, Schneider, E .... 839, 2038. 2190 Shanahan, D.F ............... 470

2180, 2181, 2485 Schneider, L.W ......... 293, 294 Shanbhag, R.L.............. 1739Sankar, T.S ..... 1, 61, 62, 434, Schneider, S ................ 297 Shang, Er-Chang ............. 711

581, 1333, 1668, 2463 Schnell, IN.................. 673 Shao Cheng ................. 1901Sano, M .............. 1448, 1829 Schock, H.J ................ 1687 Shao, De-Sen ............... 2542Santee, Jr., G.E ........... 2366 Scholl, R.E ............. 17, 438 Shapiro, E.Y ............... 1251

101

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!:!:? : i:!::i:: ::: i: ::::::::: ::::: !:!: :::::.. . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : i~::i !

Shapton, W.R ......... 973, 1503 Sigel, H.D ................. 1644 Smith, N.W .................. 995Sharan, A.M ................. 434 Slgelmann, R.A .............. 693 Smith, R.A ................. 1562Shareef, I ........ 940, 941, 942 Sllkonen, T .................. 89 Smith, S ............. 2476, 2564Sharlfan, S.M ................ 15 Silcox, R.J .......... 2742, 2744 Smith, T.N ................. 2034Shaw, S.W ................... 172 Sill, R.D .................. 2076 Smith, W.E ................. 1598Sharma, S.R ................ 1758 Slmha, K.R.Y ............... 2700 Snoeys, R ..... 1136, 1237, 1250,Shaw, S.W ....... 732, 1129, 2049 Slmlu, E .............. 257, 1912 1314Shawkl, G.S.A ........... .. 1992 gimkovi, 0 ............ 674, 2251 Snowdon, J.C ............... 2188Shea, AAK..................315 Simon, J...................1379 Snyder, PAK................ 2324Shea, M.M .................. 1678 Simonen, F.A ................ 878 Snyder, V.W ................ 1503Sheballn, J.V .............. 1717 Simonis, J.C ................ 341 Socle, D ................... 1196Shelness, A ................ 1960 Slmonnet, F ................ 1635 Socino, G .................. 1461Shelton, M.T ............... 2352 Simpson, S .................. 462 Soden, P.D .................. 303Shen, Y ..................... 889 Sims, G.D ................... 184 Soedel, W ............. 589, 2500Shepherd, I.C ......... 886, 1452 Singer, J ............ 1782, 2714 Soederqvist, R .............. 825 •Shepherd, R ................ 1588 Slngh, A ............... 497, 981 Soederqvist, S .............. 825Sherman, H.W ........ ; ...... 1964 Singh, A.V ................. 1734 Soenarko, B .......... 1157, 2755Shewchuk, J ................. 951 Singh, B.M ..... 324, 1212, 2066 Sofronle, R ................ 2473Shl, H.M ................... 2146 Singh, D.V ................. 1667 Soga, K .................... 1835Shl, J ..................... 2395 Singh, G.P .................. 877 Sogabe, K .................. 1876Shlbahara, M ............... 1547 Singh, M ................... 2477 Sol, H ............... 1209, 1250Shlbata, H ................. 2261 Singh, M.P ....... 133, 203, 932, Solari, G .................. 2759Shida, S .............. 377, 2498 2284 Soldatos, K.P .............. 2503 SShleh, R.C ................. 1890 Singh, R ....... 1143, 2333, 2434 Solecki, R ................. 1741Shiflett, G.R .............. 1850 Slnha, A ................... 1659 Solomon, S.G ............... 2778Shiga, N ................... 2452 Sinha, P .................... 499 Solomos, G.P ............... 1180Shlh, B .................... 2474 Slnha, S.C .................. 657 Someya, T .................. 1334Shlh, H.M ................... 949 Sinhasan, R ..... 500, 510, 1667 Song, B .................... 2253Shikida, M ................. 2775 Slnopoll, A ................ 2239 Son!, A.H ............. 496, 2370Shilkrut, D ................ 2718 Sinz, R .................... 1005 Son!, M.L .................. 1120Shima, A .................. 2758 Sipcic, S.R .................. 56 Sood, A.M ................... 21Shimizu, S .................. 537 Sisto, F ............. 2453, 2709 Soom, A ............... 936, 1729Shimoda, Y .................. 457 Sltchin, A ................. 1984 Soong, T.T .................. 158Shimogo, T ........... 2135, 2479 Sitzer, M.R ................ 1431 Soroushlan, P .............. 1762Shimojo, M ................. 2179 Sitzla, C .................. 1730 Sotiropoulos, D.A .......... 2048Shin, Y.S................... 238 Six, H.................... 2316 Sotlropoulos, G.H.......... 2349Shinada, N ................. 2377 SJoeberg, A .................. 92 SotoRaga, A.R ............... 783Shindo, Y .................. 1216 Skebe, S.A ................. 2280 Soucy, Y ................... 1088Shing, P.B ................. 1534 Skelton, E.A ............... 1168 Soundararajan, A ............ 676 -

Shinners, C.D ................ 86 Skidmore, G.R .............. 1185 Southworth, D.E............. 633Shinoda, P ................. 1617 Skilbeck, F ................ 2409 Sozen, M.A .................. 640Shlnohara, Y ............... 2479 Skoczynskl, W .............. 1997 Spagnolo, R .......... 2026, 2276Shlnozakl, M ............... 2001 Skowronski, J.M ............ 2353 Spain, C.V .................. 479Shlnozuka, M ........... 605, 606 Sktric, I .................. 2133 Spanos, P-T.D ......... 412, 1180Shlokawa, T................ 1672 Skuta, E.8................. 1916 Sparks, C.P................ 271 .Shloml, T .................. 1856 Slagis, G.C ................. 343 Speaker, S.M ......... 1800, 1801

Shipley, J.W ............... 1087 Slane, M.B ................. 1678 Spelcys, A ................. 2468Shipley, T.L ............... 1322 Slaton, S.G ................ 2367 Splekermann, C.E ........... 1973Shippy, D.J ................ 2755 Slazak, N .................. 1241 Spindola, J.J ............... 562Shirai, T .................. 1685 Sliter, G.E ................ 2157 Splettstosser, W ........... 1927Shlrakawa, K ...... 669, 673, 870 Slocombe, M.D .............. 2122 Spotts, M.F ................ 2689 -. .

Shlraki, K .................. 204 Slocum, S .................. 1925 Springer, H .... 1035, 1895, 2340 .Shlu, K.N .................. 2265 Slomskl, S .................. 891 Spruogls, B .......... 2226, 2464Shlxlang, Z ................ 2339 Smalley, A.J ............... 2335 Spykerman, R ............... 1089Shmuter, S.L............... 2599 Smallwood, D.0 ............. 1531 Srldharan, G ............... 2185Shockey, D.A ............... 2785 Smiley, R.G ..... 563, 1255, 1267 Srldharan, S ............... 1137Shockley, R.C .............. 2534 Smith, C.A ................. 1617 Srlnivasan, A.V ..... 1417, 1892,Shoemaker, N.F............. 2538 Smith, C.D .................. 628 1987, 2213Shoureshl, R ............... 2512 Smith, D.B ................. 2173 Srinivasan, M.G .... 54, 776, 2592Showalter, J.G .............. 243 Smith, D.L.................. 959 Srinivasan, R.S ............. 107Shteyngart, S .............. 1152 Smith, E.W .................. 958 Srinivasan, V ......... 496, 2370Shu, Chi-Fan ............... 1261 Smith, G.C.C .... 779, 1860, 2362 Stahle, C .................. 1089Shulman, D ................. 1542 Smith, G.R ................. 1402 Stalano, M.A ................. 35Slan!, T.A ................. 2117 Smith, J.D .... 1841, 1842, 1843, Stainaker, R.L ....... 1402, 1956

Sldhu, J ................... 1303 1844, 2098, 2600, 2812 Stambaugh, K.A ............. 2662Slekmann, J ................ 1445 Smith, K.E ................. 1306 Stansberg, C.T .............. 414Slerakowskl, R.L ............ 907 Smith, K.F ................. 2176 Stanton, J.F ................ 638

Sievert, IN ................. 1953 Smith, K.V ................. 1384 Stanway, R .................. 485 ." ,

102

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Starek, L ................... 611 Sullivan, J.W ........ 1648, 2030 Tamura, A .................. 1657Stark, V.J.E ............... 2666 Sullivan, L.K .............. 1967 Tamura, H ............ 1571, 1612Stathopoulos, T ............ 2381 Sun, M ..................... 621 Tanaka, H ............ 1407, 1827Stoearmn, R.0 .............. 1131 Sun, Yuming ............... 1225 Tanaka, K ................... 106Steedmen, J.B ......... 266, 1532 Sunder, P.J ................. 112 Tanaka, M .................. 1993Steedman, R.S .............. 2521 Sunder, S.S ................ 1596 Tanaka, S .................. 1002Stefano, N.M ............... 2071 Sundin, K.G ................. 558 Tanaka, T ............. 536, 2775Steffen, Jr., V ............ 2372 Sundquist, ,.J............. 1427 Tanbakuchi, J ............... 833.Stefko, GAL................2172 Sung, S.H..................2162 Tancreto, J.E.............. 1909Stegman, B.G ............... 2333 Suryanarayan, S ...... 1702, 2008 Tang, D.M .................. 1894Stelginga, A ................ 477 Sutcu, N.................. 2709 Tang, H.T............ 2255, 2260Steigmann, D.J .............. 620 Sutherland, S.H ............ 2329 Tang, Y.K .................. 2260Stein, J ................... 1974 Sutton, C.D ................. 445 Tang, Zhan-qlan ............ 1313Stein, R.A ................. 1350 Suzuki, H .................. 2102 Tang, Zhao-qlan ............ 1281Steininger, D.A ............. 3 41 Suzuki, K ...... 672, 1444, 2505, Tani, H .................... 1684 •Steinvender, F ........ 1756,2257 2731 Tani, Y .................... 2640Stepanishen, P.R ........... 2588 Suzuki, M .................. 2298 Tanrda, Y .................. 2552Stephens, J ................. 444 Suzuki, N ................... 119 Taniguchi, 0 ............... 1743Stephens, J.E ............... 450 Suzuki, S-i ................ 2403 Taniguchi, Y ............... 1547Steven, G.P ................ 1208 Suzuki, T .............. 843, 902 Tanner, E.J ................ 1316Stevens, J.A ................ 601 Suzuki, Y .................. 1876 Tansley, R.S ................ 360Stevens, K.K ............... 1142 SvedbJoerk, G.B ............. 920 Tao, D ..................... 2104Stevens, S.C ................. 55 Svenson, P.O ................ 343 Tardy, 0.8 ................. 2497 0Stevenson, A ................ 855 Swaminadham, M ............. 2196 Tarriere, C ..... 1947, 1951,1958Stevenson, S ................. 45 Sweet, L.M ................. 2411 Tarzanin, Jr., F.J ......... 1653Stiffler, R ................ 1280 Swider, E .................. 2042 Tauber, M.E ................ 2204Stilp, A ................... 839 Swlgert, C.J ................. 63 Tautenhahn, W .............. 1409Stilp, J ................... 2038 Sykes, A.0 ................. 2051 Tawflk, A.R ................ 2219Stinchconb, W.W ............. 952 Symonds, B.L ................ 956 Taylor, D.L .......... 1356, 1383Stocco, J.A ................ 2374 Symonds, P.S ............... 2287 Taylor, J.E ................ 2356Stone, B.J ................. 1109 Szczepanski, R.D ........... 2035 Taylor, R.E ................. 816 . SStone, C.S .................. 556 Szopa, J .............. 824, 2345 Taylor, W ................... 830Storace, A................. 1564 Szuttor, N................. 1974 Teal, G.A. 2454, 2455, 2456,Storace, A.F ............... 2827 Szymkowlak, E .............. 2594 2457Storey, P.A ................ 1346 Tecza, J.A .................. 182 . -

Stow, B.M ................... 165 Teffeteller, S ............... 65.Strlz. A.G .................. 394 -T- Tegart, J.R ................. 829Strocchl, P.M .............. 1796 Tegen, A ................... 2327Stroeve, A ................. 1090 Telen, K.O ................. 2451Stronge, W.J .......... 304, 1299 Tadjbakhsh, I.G ...... 1484, 1590 Tenhave, A.A ............... 1874Stroud, R.C .... 1085, 1093, 2307 2474 Tennyson, R.C .............. 1496Strunk, W.D ................ 1240 Taha, K................... 1550 Terada, K.................. 2658Struzinskl, W.A ............. 771 Taha, M.M.A ................. 854 Tesir, A ............. 1731, 2732Stucki, SAL................ 1096 Talbo, L.................... 906 Tes~r, P...................71 " -

Stuff, R .................... 637 Tair, R.J.................. 1813 Teschler, L ................ 2183Stump, B.W ................. 1849 TaJima, K .................. 2469 Teschner, W ................ 2347Stumpf, R.P ................ 1687 Takada, H .................. 1898 Teslo, M ................... 1899Stura, D ................... 2759 Takagi, K ................... 624 Thambiratnam, D.P .... 1367, 1593Sturm, A ................... 2091 Takagi, M ............ 1566, 2312 Thaulow, C ................. 2811Su, T.C ..................... 339 Takahara, S ................ 1827 Thayamballl Mathummal, A.K. 1135Suarls, W ................... 190 Takahashi, D ................ 350 Thees, R .................... 975Subbiah, R ............... 1, 581 Takahashi, I ............... 2001 Thelen, D .................. 1111Subrahmanyam, J.V ........... 392 Takahashi, K ............... 2758 Theocarls, P.S.. 318, 1726, 2705Subrahmanyam, K.B .... 1707, 2707 Takahashi, M ............... 1920 Thlbodeau, L ................ 953Subudhl, M ....... 345, 604, 678, Takahashi, S .... 672, 1444, 2505 Thle, J.A ................... 210

1152 2731 Thiele, H.M ................ 1660Succl, G .................... 684 Takanabe, H ................. 276 Thlen, G.E ........... 1042, 2375Succl, G.P ......... 52, 284, 848 Takatsubo, J ................ 902 Thigpen, L .................. 600Sucuoglu, H .......... 2519, 2520 Takayanagl, T .............. 2265 ThlJssen, J.M .............. 2586Sudo, S .................... 2730 Takeda, A .................. 2690 Thlnnes, G.L............... 2086Sueocka, A ....... 252, 938, 1571, Takeshita, I ................ 457 Thlruvenkatacharl, V ........ 107

1612 Takeuchi, J ................ 2245 Thomas, C .................. 1958Sues, R.H ................... 594 Talapatra, 0.C ............. 1904 Thomas, G .................. 2320Suetsugu, K................ 1626 Tallan, T.E ............... 1206 Thomas, M.................. 1184Suganda, H ................. 2093 Tallin, A .................. 1455 Thompson, A.G .............. 1980Sugano, T ...... 1467, 1468, 1469 Talmadge, R ................ 2087 Thompson, B.S ............... 227Suharto, D ................. 2093 Tam, C.K.W ................... 53 Thompson, C .......... 1815, 1816Suhendra, R .................. 20 Tamhane, S.K ............... 1219 Thompson, J.K ............... 143

103

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Thompson, J.M.T ............ 2407 Troger, H .................. 2288 -¥-Thompson, R.B .............. 1840 Trompette, P ................. 96Thompson, Jr., N ............ 151 Tronlch, G .................. 613Thomson, R.G .... 481, 1630, 2420 Troppens, D ................ 1823 Vaeth, W .................... 804Thoren, D.E ................. 267 Trogdenko, V.T ............. 2056 Valcaltls, R ............... 1621Thorne, P.D ................ 1170 Trubert, M ..... 1084, 1092, 2426 Vajarasathlra, K ........... 2154Thorngren, L ............... 1959 Truswell, A.E ................ 24 Val, M ..................... 1315Throop, J.F ................ 2507 Tsahalls, D.T .............. 2511 Vallet, M ............. 623, 1635Tian, Qlan-LI .............. 2557 Tsai, G.C.F ................ 1259 Vallini, A ................. 2143Tichy, J ................... 2745 Tsai, Shlng-Yuan ........... 1579 Van Bakel, J.G .............. 518 -

Tichy, J.A ........... 2221, 2223 Tsakonas, S .................. 82 Van Calcar, H ............... 987TidbalI, A.G ............... 2118 Tsang, LI....................701 Vance, J.M .................2633Tighe, W.R ................. 1103 Tsao, Y.H .................. 2305 Van Den Braembussche, R... 1880TIJhuls, A.G ................ 967 Tseng, Tsl-Ming ...... 1317, 1793 Vandeneersten, W.J ......... 2828Tilley, D.M ................ 2178 Tsicnlas, T.G .............. 1587 Van der Auweraer, H ........ 1237Timm, R ..................... 131 Tsuchlya, Y ................. 300 Vandergraaf, B.... 309, 515, 826Ting, E.C ............ 1611, 2154 Tsuda, Y ................... 1571 van der HIjden, J.H.M.T... 2533,Ting, Lu .................... 149 TsuI, Y.T .................. 1124 2814Ting, R.Y.................. 752 TsujIoka, Y................ 2481 van der Veen, C............ 1698Ting, T.C.T .......... 2279, 2561 Tsushima, M ................ 1738 Van der Velden, J.H ....... 1424,Tirinda, P ................. 2077 Tsushlma, N ................ 2092 1530Tlrosh, J .................. 1355 Tsuzukl, Y ................. 1824 Vandltschuizen,J.C.A ....... 2532Tlschler, M.B .............. 1076 Tszeng, T.C ................ 2518 Van Gulick, L.A ............. 748 •Tlttmann, B.R ......... 393, 1839 Tucker, M.D ................. 996 Vandlver, J.K ................ 28Tjotta, J.N ................ 1770 Tuncel, 0 .................. 1011 Van Herck, P ............... 1237Tjotta, S.................. 1770 Tung, F.C.................. 1105 Vanhonacker, I.P........... 1034Tius y, J ................... 250 Tung, Ju-Ming .............. 1307 VanHoy, B.W ................ 1240To, C.W.S ............ 2289, 2385 Turbell, T ................. 1918 Van Karsen, C .............. 1227Tobias, S.A ............ 10, 2146 Turclc, D.A .......... 1552, 1553 Vannoy, D.W ................ 2494Tobushl, H ................ 2299 Turhan, D .................. 1439 Vanrulten, C.J.M ........... 2514Toda, K .................... 2795 Turino, G .................. 1899 Van Vilet, M ........... 78, 2181 •Todd, R.V .................. 1150 Turkay, O.S .......... 1418, 1671 Van Woensel, G ............. 1136Todo, I .................... 1746 Turla, V ................... 2120 Varadan, T.K ......... 1700, 1705Toffer, H ................... 765 Tusting, R.F................ 708 Varadan, V.K... 147, 213, 554Togler, G ................... 954 Twersky, V .................. 188 2733, 2788Tokdemlr, T ................ 1750 Twisdale, L.A .............. 2156 Varadan, V.V ...... 147,213, 554,Tokunaga, M ................ 1727 Tylee, J.L................. 2602 2733, 2788Totlbom, B .................. 931 Tzeng, T.K .................. 926 Varga, R.C ................. 1316Tolstoy, A .................. 896 Tzou, Horn-Sen ............. 2618 Varlakl, P ................. 1603 .Tomar, J.S .................. 331 Tzuang, Shen-Ho ............ 1018 Vashl, K.M ............ 363, 2487

Tomita, H ....... 843, 2702, 2703 Vassllopoulos, L ............ 432Tomita, K ................... 722 Vasudevan, R ................ 778 - -

Tomita, Y .................. 2758 Veletsos, A.S ......... 368, 2773Tomko, J.J ................. 1889 -U- Velten, E .................. 2774Tomskl, L.................. 1712 Venkata Rao, G............. 2320 "' "Tondl, A ............... 487, 586 Venkatesh, V.C ............. 1183Tong, Zhongfang ............ 1225 Uberall, H ....... 392, 521, 2778 Venkateswara Rao, G ......... 668Tongue, B.H ........... 730, 2425 Uchlno, E.................. 2531 Venkayya, V.B............... 777Topper, T.H ........... 552, 1488 Ueda, T .................... 1474 Ventura, C.E ............... 2773Torkamani, M.A.M ............ 788 Uenishl, K ................. 1153 Vepa, K .................... 1253Tortel, J .................. 2560 Uffelmann, F ......... 2624, 2829 Verdonck, E .... 1136, 1250, 1314Touratler, M .......... 506, 2789 Uldrtch, E.D ............... 1868 Vereb, L ................... 1174Toussl, S ................... 258 UIm, S.C ................... 1039 Vergani, L ................. 2136Tracy, J.J ................. 1274 Ulsoy, A.G ................. 1343 Verhas, H.P ................. 140Tralnor, P.G.S ............... 19 Umemura, S ................. 1002 Verhelj, J.W ............... 2514Tran, K .................... 2012 Umezawa, K ...... 211, 330, 1682, Verhoef, W.A ............... 2586Trinkler, H.-R ...... 2801, 2802, 2225 Verma, M.K................. 1970

28C3, 2804, 2805 Ungar, E.E .................. 135 Vestronl, F .......... 1694, 2472Tree, D.R .................. 143 Unver, E.A ........... 1047, 1145 Veyera, G.E ................. 909Trethewey, M. ....... 973, 1576, Upllsashv111, J.M .......... 1324 Viano, D.C ................. 1401

1577 Upon, R .................... 2070 Vlennet, J .................. 194Trlantafyllou, M.S... 1695, 2489 Urbanlk, T.J ............... 2439 Vinayagalingam, T .......... 2581 0Tribout, J .................. 219 Usam?, S .................... 377 Vigneron, F .......... 1088, 1130TrInder, M.C.J .............. 130 UshiJima, T ................ 1310 Villasor, Jr., A.P ......... 1038Triplett, W.E ......... 474, 2422 Usuba, Y .................. 2109 Villasor, G.A .............. 1038

Trlpp, H.A ................. 2330 Usul, Y.................... 1887 Vlimann, C.R ............... 1687Tripp, J.E ................. 1678 Utuml, M ................... 2729 Vilnay, 0 .................. 1369

Troesch, A. ............... 2168 Utsunomiya, N .............. 1920 Vlnh, T .................... 1289

104

.

.. .. ... .. ... .. ... .. ... .. ... .. ..:- %

Vlrgopla, N ................. 714 Wang, Y.F ................... 191 Wharram, G ................. 1496VlIminck, R. .............. 1653 Wang, Y.K ................... 678 Wheaton, J.W ............... 2662Vlk, F .......... 612, 818, 1605, Wang, Y.S ............ 1648, 1929 White, A.D ................. 1646

2414 Wang, Y.T ..................2434 White, C.D ................. 1402Vogt, E .................... 2196 Wang, Zhlfan ............... 1309 White, C.E ................. 2321Voland, R.T ................ 1713 Wardl, Y.Y ................. 2357 White, J.C ................. 1006Void, H ........ 1130, 1249, 1264 Ware, A.G ........ 344, 607, 680, White, M.F ................. 2608

1268, 7509 2015 Whitehouse, S.R ............. 916 "Void, H.1 .................. 1229 Warinner, D.K.............. 2246 Whitlow, Jr., W ............. 531Volln, R.H .................. 243 Warnaka, G.E ............... 2745 Whitman, A, ............... 1923Von Hofe, R ................ 2375 Warner, D.B ................. 707 Whitman, R.V ................ 265Vonpragenau, G.L............ 317 Warnock, A.C.C .............. 698 Whitney, A.K ................ 120Von Zweygbergk, S .......... 2525 Waser, M ................... 1148 Whittington, H.W ........... 2318Voon, W.S.F ................. 775 Waser, M.P................ 2570 Whitworth, H.A.............. 736Voorhees, C ................ 1244 Watanabe, K ................ 1549 Wichmann, H ................ 1539Vrakas, E.A.................22 Watanabe, T ........... 340, 1696 Wicks, S.M.................. 480Vrblk, J .................... 324 Watanabe, Y ................ 1112 Wlerzblckl, T .......... 307, 838Vretblad, B.E .......... 920, 929 Waterman, E.H .............. 1932 Wierzblckl, W.M ............ 2603Vucetl , A ................. 2133 Waters, C .................. 1075 Wiggert, D.C ................ 117

Waters, P.E .......... 1243, 2115 Wilbeck, J.S ............... 2155Watkins, P.S ............... 1520 Wilby, E.G ................... 44

-U- Watson, A.J ................ 2036 Wilby, J.F ........... 1387, 1931Watson, J.G ................. 704 Wildermuth, P.F ............ 2173 •Watson, J.J ........... 280, 2670 Wildhelm, S.J ............... 490

Waag, R.C ................... 741 Watton, J ............ 1426, 2524 Wilharm, H .................. 784Wade, H ............... 658, 1714 Waymon, G.R .................. 49 Wilkinson, R.T ............. 1399Wadsworth, F.L..............3 08 Weaver, D.S .......... 1428, 2740 Will, K.M .................. 1584Waggitt, K ................. 1026 Weaver, F.L................. 587 Will, S.A ................... 272Wagner, P .............. 699, 700 Weaver, H.J .... 1101, 1217, 2313 Williams, A.N .............. 2410Walford, T.L.H ............. 1109 Weaver, R.L ................ 2723 Williams, E.G ............... 697Walker, D.N ................ 1006 Webb, R ...................... 77 Williams, F.W .... 567, 573, 656, 0Walker, R .................. 2605 Weber, H. ........... 1510, 2341 2619Walker, R.S ................. 308 Weber, K ............... 32, 1968 Williams, M.S .............. 1631Walkington, N.J ............. 346 Webster, C.R ............... 2651 Williams, N.J ............... 708Wailer, H ................... 256 Weck, M ........... 643, 781, 893 Willis, C.M .................. 44Wailer, M.J ................ 2333 Wehage, R.A ................ 2303 Willishire, K.F ............. 2433Walsh, M.J ................. 1969 Wehllng, H.-J .............. 1759 Willstaedt, E.C ............ 1319Walter, PA ..... 207, 2088, 2593 Wel, D.C ................. 2447 Wilson, EA ...... 440, 937, 2648Walton, A.C ............ 274, 301 Wei, R.P ............. 1800, 1801 Wilson, P.M ................ 1459 0Walton, J.R ................ 2781 Wel Ru Long ................ 1371 Wilson, W.H ................ 2542Walton, W.B ..... 679, 1305, 2256 WeT, Y.S ................... 1267 Wilton, C ................... 360W ,hsganss, M.W ...... 883, 2017, Weldlinger, P ............... 921 Wiltzsch, M ................ 2274

2262 Weldner, D.R ................ 760 Wimmer, L .................. 2314Wamsiey, R.M ............... 2622 Weight, J.P ................ 1518 Winkler, S ................. 1810 . -. -Wang, A.J ............ 1666, 2209 Weller, W .................. 1380 Winslow, R ................. 1089Wang, B.P ............. 74, 1258 Weir, D.H .................. 1382 Winter, G ................... 793Wang, Bo Ping ........ 2612, 2613 Weiss, M ................... 1068 Winter, V ................... 793Wang, C.-H ................. 1729 Wefsshaar, T.A ....... 1073, 2174 Wlrschlng, P.H ............. 2559Wang, C.Y .............. 456, 811 Welch, C.T ........... 2178, 2457 Witmer, E ................... 620Wang, D.L.................. 1210 Wells, C.H .................. 588 Wittig, L.E .................. 36Wang, D.Y ................... 538 Wells, J.H .................. 470 Wittlin, G ............ 289, 2421Wang Dian-Fu.............. 312 Wellstead, P.E .............. 410 Wittmeyer, H ............... 1394Wang, Guanfu ............... 1046 Welsh, W.A ................. 1994 Wolf, H.-C ................ 2082Wang, H.C ................... 299 Wen, Y.K ................... 2824 Wolf, J.P ............ 2389, 2390Wang, K.S ............ 1119, 2518 Wen, YI-Kwel .......... 452, 2522 Wolfe, A.A ................ 2188 -

Wang, L.R.L..........1450, 2741 Wenzel, W.A ................ 1864 Wolfer, A.J ................ 1229Wang, M.C .................. 2482 Werby, M.F.................. 148 Wolff, F.H. ..............3, 223Wang, M.E ................... 138 Werner, F.D ................ 71557 Wollitzer, S ............... 71235Wang, MAI.................. 1855 Werner, H .................. 1016 Wong 0e Xing ................ 646Wang, Ming-Liang ........... 1001 Wert, J.A .................. 1391 Wong, F.S ............. 921, 1366Wang, M.Q .................. 1894 Wesolowskl, Z .............. 1125 Wood, D.E .................. 1349Wang, P.C ....... 255, 1999, 2285 West, C.D .................. 1574 Wood, T.L.................... 51Wang, P.K.C ................. 292 West, H.H .................. 2490 Wood, W.L .................. 2609 "Wang, QI-Zheng ............. 2539 Westine, P.S ............... 2040 Woodall, T.D ............... 2565Wang, ShinyJ ............... 1354 Weston, D.E ................. 971 Woodhouse, J ............ 70, 772Wang, Shu-Lan .............. 1308 Wavers, L.J ................. 814 Woods, Jr., A.A ............ 2429Wang, Tong-Sheng ........... 2354 Weyn, A .................... 2361 Woods, P ..................... 34Wang, XI-Shang ............. 1312 Whaley, P.W ..... 192, 1497, 2205 Woods, T.0 .................. 745

105

...,,.. . . .. .-. ...

, .. .. .. : ..... ....... .. , ..... . ----. :.......-..'.

Woodward, K.A .............. 1436 Yeager, D.M ................ 2572 Zeller, T.Z ................ 1073Woodward, R.L .............. 2708 Yeager, Jr., W.T ........... 1342 Zellner, J.W ............... 1382Woodward, R.P .............. 1416 Yee, B.G.W .................. 475 Zeman, K ................... 2288Woolf, A ................... 1563 Yee, V ...................... 589 Zeng Zhao Yang .............. 451Wormley, D.N ................. 75 Yeh, Y.H ................... 2741 Zernicke, R.F .............. 1321Wright, C.J ................. 573 Yener, M ................... 1611 Zerrmayr, F ................ 1759Wright, P .................. 1538 Yener, M ................... 2154 Zeuch, W.R ............. 456, 811Wu Hut-Le .................. 1901 Yeung, H.C ................. 2740 Zhang Huan Hua .............. 654Wu, J.J .................... 1126 Yew, C.H ................... 1210 Zhang, Jing-hul ............ 1313Wu, Kuang-Ming ........ 199, 1716 Yih, Chia-Shun ............. 2395 Zhang, Ping-sheng .......... 1197Wu, L .................. 181, 555 Yim, C.-S .................. 2647 Zhang Welyue ............... 1749Wu, R.W ..................... 157 YIm, Chik-Slng.. 794, 1056, 1592 Zhang Wohua ................ 2717Wu, S.T ..................... 523 Ying, Runlan ............... 1040 Zhang Zhl Ming .............. 583Wu, S.Y .................... 2105 Ylng, S.P .................... 30 Zhao, Llngcheng ............ 1286 -

Wu, T.T .................... 1127 Yoerkle, C.A ................ 468 Zhao Rong Bao ............... 610 0Wu, Wen-Fang ............... 1051 Yokol, M ................... 1650 Zheng, Welzhong ............ 1049

Wu, Yih-Tsuen .............. 2559 Yokokl, K .................. 1248 Zhou, Hut-Jlu ........ 1197, 1794Wylie, G.B .................. 861 Yonekawa, Y ................ 1633 Zhou, JI-Xun ................ 711Wynne, E.C .................. 281 Yong, Y.K .................. 1832 Zhou, Jing ................. 2652

Yoo, K.B ................... 2778 Zhu, Wen Hua ............... 2637Yoo, Kwang-Bock ............. 521 Zhu, Z ...................... 692

-X- Yoshida, A ................. 1677 Zhuping, H .................. 337Yoshida, H ................. 1116 Ziegler, F .................. 389 6Yoshida, K ........... 1915, 2135 Zlenklewlcz, O.C ...... 413, 1856

Xia Jing Qlan ............... 597 Yoshimoto, I ............... 1686 Zimmerli, R ................ 1378Xiang Halfan ............... 2644 Yoshlmoto, S ............... 2134 Zimmerman, R.E ............. 1629Xle Zhong-Jle .............. 1555 Yoshimura, J ................ 866 Zimmermann, C ............... 962Xu, Bingnan ................ 1040 Yoshino, T ................. 2377 Zimmermann, K.J ............ 1221Xu Zhlxln .................. 2717 Yoshitake, Y ................ 938 Zislin, A.M ................ 1075

Yoshlzawa, H ............... 2498 ZmIndak, M ................. 2348Yoshlzawa, M ............... 2481 ZagJowek, D ................ 2656

-Y- Young, K.J ................. 2532 Zomotor, A ................. 1380Younis, C.J ................ 1484 Zorumskl, W.E ............... 466Yousrl Gerges, S.N .......... 894 Zorzi, E.S ............ 182, 2338

Yabe, H.................... 1672 Yu, H.C................... 2434 Zoul, V.............. 1683, 2692

* Yabe, S ..................... 756 Yu, LI-sheng ............... 1263 Zwaan, R.J .............. 48, 478Yagasakl, K ................. 727 Yu, T.X ..................... 304Yakovenko, L.F .............. 548 Yu, Y.H .................... 1616Yamada, G.... 104, 106, 335, 671 Yuang, Son-Xin ............. 1308 -

1443, 1738, 1742, 2492 YuanxTan Gu ................ 2194Yamaguchi, H ......... 2450, 2710 Yun, Wet Jun ............... 1066Yamaguchi, S............... 2531Yamahara, H ................ 1471Yamamoto, M ................ 1685

. Yamamoto, T ........... 624, 1215

Yamasakl, H ................ 1571Yamashita, N ................ 541 Zabal, X ................... 1768Yamazaki, K ................ 1116 Zabel, P.H ................. 2044Yamazakt, T .......... 1835, 2462 Zablelskas, V.A ............ 2226Yan, M.J .................... 202 Zac, R ..................... 1954Yan Mlnggao ................ 2776 Zacke, P ................... 2806

* . Yang, Bo Suk ............... 2695 Zagzebski, J.A .............. 737Yang, J.C.S ........... 191, 2099 Zalko, J.P .................. 461Yang, J.L ............ 1541, 2604 Zajaczkowski, J ............. 329Yang, J.N ........ 475, 790, 1117 Zak, A.R .................... 222Yang, Ming-San .............. 994 Zak, M ..................... 1017Yang, T.Y ....... 260, 327, 2240, Zamin, M ................... 2062

2504, 2768 Zampieri, D.E .............. 2341Yang, Y..................... 90 Zang, T.A.................. 1178

. Yang Yong Nian .............. 617 ZanonT, E.A ................ 1866Yaniv, S.L .................. 750 Zaorskl, R.W ............... 1820

Yano, S .............. 1787, 1788 Zaremsky, G.J .............. 1143Yano, T ..................... 455 Zarrop, M.B ................. 410Yao, J.T.P ....... 258, 312, 2186 Zawadzkf, S ................ 2111Yasuda, C .................. 1220 Zebrowski, M.P ............. 1300Yates, Jr., E.C ............. 281 Zedan, M.F ................. 2488Yau, W.F.................... 806 Zeld, I .................... 1337Yawata, Y.................. 1897 Zeldler, F................. 1946

106• .

. . . . . . . . .. -. . .. ..-..... . . . . . . . . . . . .o.--------

SUBJECT INDEX

Acoustic Excitation

2751 1663 1456 527 •A 1767

Absorbers (Equipment) Acoustic Imaging487 2795

Absorbers (Materials) Acoustic Impedance1647 628 1460 151 1462 514 2677 1158

2028 2078 9

Acceleration Analysis Acoustic Insulation2536 1586

Acceleration Measurement Acoustic Intensity Method2441 1920 751 903 2024 905 577

2271 1143 1155Accelograms 0

2655 Acoustic Linersuse Acoustic Linings

Accelerometers1821 1522 1223 2074 1235 2076 Acoustic Linings

1975 2742 2743 6842075

Acoustic MeasurementAcoustic Absorbers 750 •

1104 2676Acoustic Measuring Instruments

Acoustic Absorption 981 975 9872025 2276 2677 488

628 Acoustic Properties698 462028

Acoustic PulsesAcoustic Arrays 1462

709Acoustic Resonance

Acoustic Attenuation 898use Acoustic Absorption

Acoustic ResponseAcoustic Coupling 136 238

151Acoustic Scattering

Acoustic Detection 520 521 153 147 1482367

Acoustic TechniquesAcoustic Emission 211 1276 1217200 2811 2812 1543 424 1005 1536 1837 6891000 1843 764 2095 1836 1529 Acoustic Tests S

2333 1004 2316 1539 800 8972343 15442413 2094 Acoustic Waves2573 350 392 20182723 390

Numbes: 1-244 245-429 430-578 579.783 784-1032 1033-1326 1327-1563 1664-1873 1874-2119 2120-2369 2370-2629 2630-2831

Voktme 16

IBM: 1 2 3 4 5 7 8 9 10 11 12

107

........................

.'..-......................-..........--: ........ ,....-. . . . . -* - . - . -. • . .... . -- "j .. . . . . o°.°°...........,, %.. .... .o... ..-...- ,°.- . °..•.... ...... . • .. ° °. .. °.

,o- , . . . . . . . . ..-. ..-...--...- . ,..•%. °- , ... - ,- ° ' . °... . ,. . . ,. . .- . . ...... .". . . . . . . . . . .."° -.-. ..-. . .- °., . ° ° . °. ". -

. . - . .. . .. . . . -.. - ..

Acoustical Data Aerodynamic Responseuse Experimental Data use Aerodynamic Stability

Active Absorption Aerodynamic Stability2676 2677 2242 1077

Active Attenuation Air Bags (Safety Restraint Systems) S683 1764 886 31703

1453 Air Blast444 425 2626 449

Active Control1075 76 1407 2128 79 Airborne Equipment Response . -.

2745 846 2677 2768 206 239

Active Damping Air Compressors2461 63 595 use Compressors

2383 11851485 Aircraft

620 231 42 403 474 475 476 287 288 49Active Flutter Control 1070 1071 282 473 574 615 616 1117 918 79

2671 2184 837 1080 1391 472 1073 1074 1025 636 1387 1388 3791631 1072 1933 1394 1075 1076 1627 1628 619 .0

Active Isolation 2421 1082 2173 1934 1625 2087 12691642 76 2792 2174 2667 2669

836 2184

Active Noise Control Aircraft Engines130 1764 1155 1646 2424 46 2187 1069

Active Vibration Control Aircraft Noise790 1971 312 1624 75 836 627 1408 1369 1390 471 622 43 44 45 286 47 618 13892430 1974 255 1406 1400 1621 1622 283 284 285 1386 67 1619

595 2186 1620 1931 1932 1083 2634 295 19291105 1930 1941 2172 2433 2664 26651185 2170 2171

Actuators Aircraft Seats2023 2524 2672 1937

Added Mass Effects Aircraft Vibration291 2717 859 1977 2668 2419

Adhesives Aircraft Windows . ,1421 1684 2466 1621

Aerial Explosions Aircraft Wings931 1594 2045 926 1907 50 281 1392 1623 1624 1075 1626 277 48 279

280 1081 2422 2423 2666 477 278 479Aerodynamic Characteristics 2670 2671 617 478 1079

2761 1078

Aerodynamic Loads Airfoils100 621 1382 2173 474 85 56 617 48 1079 530 531 2552 1613 244 1785 1077 2768 01080 1081 1822 2353 1474 1075 1626 1207 1078 2550 1781 1783 1474 2545 2767 .2380 2551 2212 2473 1854 1625 1986 1617 1928 17842450 2831 2552 1924 1655 1986 1627

2324 2767 Airport Noise

use AirportsAerodynamic Noise900 899

2270 _

AbstractNumbers: 1.244 246-429 430-578 579-783 784-1032 1033-1326 t327-1663 1564-1873 1874-2t19 2120-2300 2370-2620 26M02831

Volume 16

Ioue: 1 2 3 4 5 6 7 a 010 11 12

108

......................... ...

., .".. . . .°.

T T ~~~~~~. . . .,,....-,,,.--..- ... ,-....-., ,._.. ............ ... ,.. .,. ..... ,

Airports Antifriction Bearings2170 622 1083 1774 67 618 use Rolling Contact Bearings

1513Approximate Methods

*Algorithms use Approximation Methods201 193 2354 1735 2126 567 229

Approximation Methods* Aligning 2610 1722 223 1145*use Alignment 1283

*Al ignment Arches*1991 2813 854 2465 1507 1569 2010 2491 865 1907

2684 2217 2459ARMA (Autoregressive-Moving-Average Models)

Alloys use Autoregressive-Moving-Average Models1796 959

1199 Arrays1489 1241

Aluminum Articulated Vehices951 1202 983 2034 2447 2228 1489 612 254 1385 1606 818

2062 1604 16052414

Amuntion2042 2043 1909 Asyfmmetric Excitation

1734Amplitude Analysis

494 Asymptotic Approximation1923 2565

Amplitude Measurement2314 Asynchronous Motors .

1885*Anechoic Chambers

2083 Autocorrelation Technique2107

Angular Speed1888 Automobile Bodies

1731Angular Velocity ~

use Angular Speed Automobile Engines1375 1376 629

*Angular Vibration 2375use Torsional Vibration

Automobile NoiseS Anisotropic Propertie 1920 2274

use AnisotropyAutomobile Seat Belts

Anisotropy 1966573 1214 665 328723 Automobile Steering Columns

1979Annular Plates

1442 107 868 Automobile Tires867 2446

61 62 Automobiles292 300 301 72 1643 2624 1115 977 1898 2991222 1601 1602 2327 1269

1922 2829l Anthropomorphic Dummusies 2162

1952 1953 1954 1967

9AbcAact* Numb.,,: 1-244 246-420 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

49Vok4me 16

Ism: 1 2 3 4 2 6 7 a 9 10 11 12. .

. . . . . . . .. . . . . .......

-. - .

Autcparametric Response Beam-Columns365 366 2490 641 322 654 2008

2711Autoregressive-Moving-Average Models1290 221 A.i2 1555 1309 Beams

320 321 652 233 74 95 96 97 358 319Averaging Techniques 650 651 1122 633 94 565 1116 507 508 649 . S

1227 690 861 1132 653 1134 655 1496 997 858 859860 1131 .1432 1133 1284 1255 1706 1257 1338 1119

Axial Excitation 1700 1701 1482 1223 1684 1705 2006 1707 1708 11291712 1736 1738 1710 2481 1702 1703 1704 2265 2356 2007 1698 1699

2726 2240 2641 1722 1763 2484 2485 2486 2437 1878 17092310 2362 2483 2704 2705 2706 2487 1888 2239

Axial Force 2480 2482 2707 2238 24891782 1015 2710 2612 2488 2549 0

2708 2709Axial Vibration

432 785 Bearings420 1 582 583 84 85 496 497 498 499

Axisynmetric Vibrations 500 431 852 1333 314 1205 756 i667 638 8492731 1444 666 850 501 1002 1673 854 1275 1676 2217 1108 1109

1110 851 1672 1843 1204 1675 2216 2687 1328 1669 . ..1670 1011 1842 1993 1674 2215 2686 1418 1989 .1990 1111 1992 2133 1844 2685 1668 2129

-B- 2220 1671 2092 2223 1994 2098 22192460 1991 2132 2683 2224 2218 2229

Baffles 2600 2091 2222 2684 2458 24591648 2221 2812 2688 2649

2331 2808Balancing

use Balancing Techniques Bellows515

Balancing Machines1278 Bells

115

Balancing Techniques760 761 762 2334 2335 2096 1277 2338 759 Bending Vibration2340 1541 1542 2604 2126 2337 1279 18762810 2336 2339

Bernoulli-Euler MethodBall Bearings 94 319 .-.

314 1275 756 17042704

Barges1102 Bibliographies

2510 1361 1872 1643 84 575 576 577 578 1529Bars 2590 2831 1873 244 795 1196 1477 14782700 2701 1802 1703 1125 1696 187 318 984 1325 1326 1528

857 648 1766 26781177 24782237 Bifurcation Theory2477 1015 408 4092487

Bimodular PropertiesBase Excitation 508 .

1484 13292729 Bioengineering

737Base Isolation310 311 833 834 Biot Theory1590 1484 1856 197

AbstactNumbers: 1-244 246.429 430-678 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 21202360 2370-2629 2630-231'

Volume 16

Imue: 1 2 3 4 5 6 7 8 9 10 11 12

110

.. . .................. . .. .

. .% o

• ,: _ ',_ ' ___%". . ... ___.--°, , ......... ........... .........

Bird Strikes Boiling Water Reactors2827 89

Blade Loss Dynamics Bolted Joints433 1564 2012 504 1997 2228 509 _ ..2494 2467 2468

Blade Passing Frequency 244•47 46•313 Bolts

261Blades490 81 82 83 494 5 636 637 848 1659 Bonded Structures2200 491 492 313 844 495 846 847 1658 2199 16842210 1661 1002 493 1414 635 1416 1107 1988 22092450 2201 1652 843 1664 825 1656 1417 2198 2449 Bond Graphs

2211 1662 1183 2194 845 1666 1657 2208 2709 use Bond Graph Technique2451 2202 1413 2204 1395 1986 1987 24482831 2212 1663 2214 1415 2196 2197 2558 Bond Graph Technique

2362 2203 2454 1655 2206 2207 1271 25122452 2213 1665 2456 24572682 2453 2195 2637 Booster Rockets

2205 24272455 ,Boundary Condition EffectsBlast Excitation 601 2553 1744 1546 338 89

528 1119

Blast Loads Boundary Element Technique361 1392 65 626 927 449 2390 2389

2542Boundary Value Problems

Blast Resistant Construction 1690 2352 2555 2756 857 1298 1299use Blast Resistant Structures 2765 2766 1547

Blast Resistant Design Box Girdersuse Blast Resistant Structures 1357

Blast Resistant Structures Box Type Structures360 361 442 444 446 2538 719 913 _ _

720 572 2544 919920 922 Brakes (Motion Arresters)930 2622 2050 1728

1910Braking Effects

Blast Response 34 1957560 2031 442 913 2044 1855 858 2039930 922 1778 Bridges

1580 1581 592 13 14 1357 2379Blowdown Response 2380 1611 1582 253 254

2258 1902 2643 2644

Blowers Bubble Dynamics ., "1229 2758

Boats Buckling S1613 870 2641 493

Boilers Building Block Approach341 883 1754 885 996 1573 1245

2141

Absrac~t ... S . .

Numbers: 1-244 245-429 430478 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2110 2120-2369 2370-2029 2630-2831

Volume 16

Ism,: 1 2 3 4 5 6 7 a 9 10 11 12

111"""" "

................ *. .. *. .. " ...- °%

* ,. .."%-. -.

• T.? , . ,/ .".". .' ,, .,'.,,"..,- . ."-.?.'"'.? , ? .,,''..,. ''-,.'.,''. .,' ,..L*:',• o * -,-, ,' ,% % % " % ,% ,',,' -, % % , ,-o ° ,o*'

Buildings Cantilever Beams350 791 452 593 134 15 16 17 258 259 1701 1122 323 74 325 2356 1707 1878 2239790 1051 792 1053 594 255 256 257 438 439 1812 1763 1684 655 27091360 1361 1052 1363 1584 595 426 437 518 789 24851590 2381 1362 1583 1904 1585 436 597 788 1359

2382 1903 2384 1635 596 1587 1358 1589 Cantilever Blades2383 2385 1586 1588 2149 2453 ,

2645 2286 2148 23692386 2818 Cantilever Plates2646 1140 511 2722

Bumpers Cantilever Rotors301 1959 430

Buoys Cantilever Shells1775 1740

Buses Caps (Supports)" 1603 818 675

Cascades492 1415 1417

-C- Case Histories2140 2262 757

Cable Cars 10672698

CatenariesCable Stayed Bridges 2473

use Bridges andCable Stayed Structures Cavitation

164 505 939Cable Stayed Structures

2022 13 2644 656 Cavities2790 371 963 2778

Cables 275192 13 1694 1695 856 647 2698 269

2472 1123 2474 2475 2236 1029 Cavity-Containing Media __

1693 2476 2699 16962473

Cavity EffectCadavers 2554 1676

1951 1952 1954 19651962 Centrifugal Compressors

1880 1664 585 1009 -

Calibrating 1345 01040 1522 2075 1236

1516 Centrifugal Forces2606 914

Calibration Centrifugal Pumpsuse Calibrating 2232 7 1448

1887Cam Followers 0645 Ceramics . .

547 2589". ..-

Camshafts 2297 2589209

Chains1695 787

AbstractNumbers: 1-244 245-429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

Volume 16s*

Imue: 1 2 3 4 5 6 7 a 9 10 11 12

112.. . . .

,.. . . . . . .. . . . . .. . . . . .. . . . . . . .%

.. . . . . . . . . . ... . . . . . . ..*. .. . .. . .. . .. . .. . .. . .. . .. .

•...... .... .....- *

V VT

Channels (Waterways) Collision Research (Aircraft)2395 use Crash Research (Aircraft)

Chatter Collision Research (Automotive)10 2145 2146 1047 938 1579 300 31 32 33 274 305 1096 1097 1598 299

250 1578 1950 301 1402 1403 1404 1095 1636 1597 1638 15992050 2147 1960 821 1562 1953 1954 1405 1916 1637 1948 16392640 1970 831 1952 1963 1964 1945 1946 1917 1958 1919

1321 1962 2114 1955 1956 1947 1949Chimneys 1401 2412 2164 1965 1966 1957 19592400 261 1054 1128 599 1951 2166

1961Circuit Boards

997 Collision Research (Ships)1581 463 275 276 268 29

Circular Membranes 2962241

Collocation MethodCircular Plates 8662720 1441 1442 104 105 106 667 668 329

2495 666 1727 2718 2719 Columns640 302 1713 864 325 656 657 658 2009 , •

Circular Saws "

1183 2637 2638 Combination Resonance1481 364

Circular Shells335 1777 669 Combustion Engines

1687 209Cladding

2772 1584 Combustion Excitation1575

Clay Soils1215 Combustion Noise

2272Clays2650 Compacting

1061Clearance Effects

1674 1566 Complex Modes1302 1848

Closures361 2544 Complex Structures

411 417Coal Handling Equipment-•2809 Component Mode Analysis

180 2304 1506 -

Coatings 7301772 1260

2610Coaxial Structures

336 859 Component Mode Synthesis1050 1261 1262 1053 117 2568 1259

Coherence Function Technique 2310 2202 2577140 2067 138

Composite MaterialsCollapse 620 1563 394 1496 537 479

use Failure Analysis 1280 2063 1274 2667 9491540

AbUMNumbent: 1.244 245.429 4304786 579-763 784-1032 1033-132 1327-1563 1564-1873 1674-2119 2120-2389 2370-2629 2630-231

Volume 16

1: 1 2 2 4 5 6 7 6 9'10 11 12

.. . " ".

Composites Computer Systems Hardware2325 2106

Composite Structures Computerized Simulation110 1493 1144 907 319 2761 1789550 739

1209 Concentric Structures .1443 2237 2478 859

Compression Joints 1749504 1779

Compressive Strength Concretes302 303 2085 306 307 190 1061 1902 413 934 2035 1906 1557 798 689

2032 1793 2064 2065 2036 2247 1908 2009Compressor Blades 2392 2033 2254 2038 2089

1413 494 23541663 1664

Condensation MethodCompressors 28211420 431 2 1883 584 585 586 8 5891880 1331 562 1034 1345 686 1148 1349 Configuration Effects - " -

'

1561 1882 use Geometric Effects1881

Conformal MappingComputer-Aided Techniques 2364 225211 62 893 734 545 2616 977 558 189721 522 993 1284 765 2806 1007 748 1389 Conical Shells981 1032 1013 1964 975 978 112

1021 1263 2614 1315 23282151 2083 2825 Conjugate Gradient Method

1850Computer Disks

1248 Connecting Rods2694

Computer Graphics1383 Constitutive Equations

2540 413 1027Computer Programs 1813230 241 242 463 134 575 606 517 238 9240 421 422 503 264 895 766 1027 558 79 Construction Equipment420 531 572 573 574 935 1026 1077 778 189 2399570 571 1022 1023 1024 1025 1256 1317 788 239950 651 1052 1323 1304 1865 1866 1557 1028 299 Construction Industry1030 871 1152 1563 1324 2255 1936 1627 1038 779 10621300 1081 1312 1863 1864 2365 1956 1867 1258 10291320 1281 1322 2163 2194 2625 2156 2157 1318 1319 Contact Vibration1450 1321 1562 2363 2364 2296 2217 1328 1559 17291560 1561 1862 2623 2624 2366 2367 1558 17592110 1861 2362 2714 2376 2617 1868 1859 Containers2250 2111 2502 2724 2546 2827 2108 1869 676 817 24392310 2361 2622 2826 2368 18892360 2621 2618 2619 Containment Structures2620 2691 2708 2639 810 811

2828 2829 •Continuous Parameter Method

Computer Simulation 1284 418 419use Computerized Simulation

Continuous SystemsComputer Storage Devices 6522460 2183

AbstracNumbers: 1-244 246429 430-678 579-783 784-1032 1033.1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 263231

Volume 16

Iwue: 1 2 3 4 5 6 7 a 9 10 11 12

114

%.1.. ...l..1. - . . -.... ,.,.

. . . . . . . . . . . . . . . . . . . .. ,.....:,

-o . . °.

Continuum Mechanics Couplings2823 1420 2692 3 2464 2226 1507 1419

1683 2227Control Equipment 2693

use Control Systems -u Covariance Function

Control Systems 1313 256311 519

CQCConveyors use Complete Quadratic Combination Method

591 252 787Crack Detection

Cooling Fans 1273 1004 876 877 997 1539 - - :use Fans and Cooling Systems 2603 2814 1007

2097Cooling Systems

121 1038 Crack Propagation1648 540 541 382 383 384 25 376 287 538 1292688 550 551 542 543 564 375 536 377 958 539

960 961 552 1803 2294 535 1806 1117 1198 1199Cooling Towers 1580 1191 962 2783 2784 955 2776 1197 1798 1809260 2504 1800 1801 1202 1195 2786 1207 2779

1810 2781 1492 1795 1797Copper 2780 2782 1805 2467

983 2775 27872785

*Coriolis Forces496 Cracked Media

200 121 1273 2814 385 786 957 878 2139Cornering Effects 1210 321 956 1807 1758

34 2658 1330 1341 1216 2507 18082140 1741

Corrosion981 Cranes (Hoists)

1560 262 1365 1116 1128Corrosion Fatigue 26421800 1801 2062

2811 Cranks . 02691 2694

Corrugated Structures2438 2439 Crankshafts

1570 2331 1875 1036 1339Coulomb Damping 1876

2003Crash (Computer Program)

Coulomb Friction 1562180 81 642 73 1484 215 1996 1107 1788 1659

491 733 655 1187 2438 Crash Research (Aircraft)1787 480 481 1082 1756 1937 838 2891997 620 2421 2672 1936 1388 16292557 1630 2176 1938 1939

2420Coupled Response

1721 1612 1434 785 1876 97 Crashworthiness1702 1565 1986 480 481 2672 1936 1937 288

1630 2176Coupled Systems 19601330 1341 1415 1119

Critical Loads567 1738

A sractNumbs: 1-244 246-429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1673 1874-2110 2120-2369 23702629 2M30-231

Volume 16s

luue: 1 2 3 4 5 a 7 6 9 10 it 12 .

115

v------------------------

.... '.......'.........' .-- ... .. ":... .... " .. .-.... '......- .. -- "".."

Critical Speeds Cylindrical Shells (cont'd)580 1 2 1923 1334 1335 246 247 1788 2250 1741 2502 1443 1147 2248590 2142 1877 2730 2251 2503 1777 2508 25092340 1887 2507 2728 2619

2727 2729Cross Spectral Method 2737 02570 751 2067

Cylindrical TubesCryogenic Systems use Cylinders and Tubes

835

Curve Fitting _ _ _ _".'__'_851 1354 225 1266 397

1267 -D- •

Curved Beams Damage Prediction653 96 1001 463 2224 2045 436 2099

2006 2529

Curved Ducts Damped Modes149 1895

Cushioning Damped Structuresuse Impact Shock Insulation 1180 181 133 224 555 1036 319

2470 2291 1703 784 1486 1659Cushioning Materials 2773 1184 1739

use Packaging Materials 1744

Cutting Damped Systems

10 251 2032 434 2378 1260 1283 1186 947 2348

1506Cyclic Averaging

1227 Dampers1791 182 373 946 317 2558

Cyclic Loading 2201 532 2556641 1763 1134 1435 1906 1867 2468 219 1482

1371 1793 2675 2826 2777 20092711 2523 2299 Damping

1940 1932 1713 64 945 1988Cylinders 2770 2293 2754 1485740 1711 862 863 324 1165 916 427 1818 1479970 2401 1712 1433 1434 1175 1136 1779 Damping Coefficients2410 2511 2712 1773 2714 2489 680 191 1362 583 1394 245 336 1997 1109

2403 1120 1671 1632 1273 1674 485 1426 --1270 1791 1672 1673 2054 2015

Cylindrical Bearings 1790 2132 2053 22341275

Damping EffectsCylindrical Bodies 670 1901 1692 1863 344 2055 496 607 979

use Cylinders 1890 2373 8841334

Cylindrical Cavities371 966 Damping Values S

use Damping CoefficientsCylindrical Plates

2713 2715 Dams1060 2652 23 265 2396 797 798 1059

Cylindrical Shells 2653 1058870 521 672 113 674 335 336 147 448 6691740 671 1742 673 2725 2726 337 1738 1739 Data Dependent Systems

(cont'd) 1311 S

AbstractNumbers: 1-244 246-429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2631

Volume 16

Iu.e: 1 2 3 4 5 6 7 8 9 10 11 12

116L-- -

......................................• " I . .. . . . . . . . . . . . . ..

.. .. .. .. .. .. .. .. .. . .. .... ."- .. ,.. .

:''"'""' "- '." " " ".""''''".". ."""". .-." .. . . ..". ..-. .".".". .."..'""-"•" "'."." " T L- -"' - - . '•. "-."-"" --'". ":"'""""-.".,''"'-.-''- "."'"'"' ." ." " " " .' " ." L" . "i '"-" .".' Y ' ". ". . ', '.""" 'S '- ''.,''. " " '.".- '. ." .'' -'." " "

Data Display Discrete Fourier Transform1304 193 1508

1873Data Presentation

1488 Discsuse Disks

Data Processing u

771 2262 1193 1495 Disks1191 1775 490 491 102 333 1335 326 1507 1328 1729

1730 1662 723 1415 2066 2587 1568 2189Data Recorders 2190 1732 2246 1728 . . -

1652 2452

Data Reduction Displacement Analysisuse Data Processing 2536 0

Design Sensitivity Displacement Transducersuse Structural Modification Effects 986

Design Techniques Dissipation Factor1250 781 1042 1103 1184 185 1256 1257 1068 519 24381320 841 2102 1983 2224 1255 1886 1258 6392160 921 2203 2374 1315 2616 1858 1039 Domes S2530 1021 2175 2138 1049 872 1737

1251 2375 2358 12591561 2445 2109 Donnel Theory1871 2825 2359 2713 27152691 2639

DoorsDetectors 720 361

985 0Doubly Asymptotic Approximation

Diagnostic Instrumentation 7782090 2332 1535 1538

DrawbarsDiagnostic Techniques 2657210 1841 562 563 404 405 756 997 758 2091540 2091 2092 1273 1274 1275 786 997 998 1009 Drilling1840 2331 2402 2093 2814 996 1537 1838 1309 15491870 2601 1536 1837 2318 18392090 1836 2598 2599 Drilling Platforms2330 2808 2809 20 191 812 273 814 855 516 20992600 30 1912 813 2406 2409

120 1913Diesel Engines 2160 25231900 1041 1042 1043 1045 646 1897 1098 1899

2530 1351 1252 2445 1896 1898 Drills2692 2376 2118 2641 12 1013 2574 2397 2398

Differential Equations Drilships745 use Drills and Ships

Digital Techniques Drive Line Vibrations534 1155 1352 1353 1645

Dimpling Effects Drop Tests951 205

Discontinuity-Containing Media Drop Tests (Impact Tests)2652 1177 2788 1631 2594

Abstract

Numben: 1-244 241420 430-678 570.763 784-1032 1033-1326 1327-1663 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

VolUme 16

,,s,.: 1 2 3 4 S 6 7 e 9 10 11 12

. . . . . . . . . . . . .- :..

117 "'" "."'."* '

." _d °"'

Ducts __.130 131 132 353 684 2635 346 887 8881760 681 682 683 1154 2745 886 2517 2018 -E"-'

1451 1452 703 1454 2516 2518 -

2742 1153 2744 Earth Handling Equipment1453 1974 68 69 022632743 Earthquake Damage

2394 16 439Dynamic Absorbers 436

1932 1755 298 2386

Dynamic Analysis Earthquake Resistant Design2174 156 use Earthquake Resistant Structures S

Dynamic Balancing Earthquake Resistant Structures1541 2604 1279 2760 833 834 1435 1056 2807

994Dynamic Buckling2490 2253 864 355 337 Earthquake Response

1015 1137 2010 592 603 2644 596 437 678602 2654 1436 717

Dynamic Excitation 2746use Dynamic Response

EarthquakesDynamic Loads 595 2048

use Dynamic ResponseEccentricity

Dynamic Relaxation 1329 .2699 *-!

Eigenvalue Problems

Dynamic Response 220 101 722 1293 224 565 1296 567 768 2291370 11 452 983 1554 408 409 2360 1851 575 1776 767 1298 1779

2490 1865 2126 1297 1548 2349Dynamic Stability 2820 1895 2816 2127 1848

431 1933 34 2425 2726 2347 23481381 2357 2618

Dynamic Stiffness Eigenvalues2390 501 228 2389 use Eigenvalue Problems

Dynamic Structural Analysis Elastic Analysis161 2102 363 217 218 229 2560 1903231 228

1561 1868 Elastic Core-Containing Media - -

1744 sDynamic Structural Response

use Dynamic Response Elastic Foundations761 2482 633 1116 667 659

Dynamic Tests 861 2126 867640 991 992 2593 614 755 2256 597 1218 2629 24161600 1631 1362 1834 1435 1527 1388

2592 1835 1758 Elastic Half-Space2085 2350 2373 324 658 1849 -2595 1714

Dynamic Vibration Absorption (Equipment) Elastic Media1640 487 1578 371 2013 648 15492710 2188 2279

AbtractNumbats: 1-244 246-429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

Volume 16

lime: 1 2 3 4 S 6 7 8 9 10 11 12

118

.- .. o

. ... . .......... i .-

Elastic Plastic Properties Electromagnetic Properties2562 654 982

864Electromagnetic Waves

Elastic Properties 391 392 743 744 415 9681270 2561 1563 2234 386 1209 18182470 1703

Electronic EquipmentElastic Restraints use Electronic Instrumentation1430

Electronic Instrumentation

Elastic Supports 2594 206 2392490 2371 2647 _ -

Electronic Test Equipment 263Elastic Systems 2636

1772 1283 726 23581863 1866 Enclosures

890 1771 2274 2025 2026Elastic Waves 2275 2046

1161 2302 393 1814 966 147 148 27762281 553 2814 1216 967 18382701 1726 2298 Energy Absorbers

2778 use Energy AbsorptionElastically Restrained Edges

use Elastic Restraints Energy Absorption300 301 302 303 304 275 296 297 268 299

Elasticity 840 1102 305 306 307 1938 839use Elastic Properties 1100 1156 1639

1979Elastodynamic Response .390 1292 1545 1547 1809 Energy Balance Technique1500 1986

Elastohydrodynamic Properties Energy Dissipation90 1667 1001 504 2055 837 838

850Energy Methods

Elastomeric Bearings 1122 9834 638

Engine Cylinder BlocksElastomers 1875 2109

1691 1104 825 826 488 2679855 2788 Engine Mounts

1645 1972 2445 826 1977

Electric Generators Engine Mufflersuse Power Plants (Facilities) 2530

Electric Motors Engine Noiseuse Motors 1900 2632 143 625 1376 1899

2273 1875Electric Power Plants

use Power Plants (Facilities) Engine Vibration73 1069 0

Electric Raceways 1973 12592595

EnginesElectromagnetic Excitation 422 1044 13481040 2243

Environmental Effects62

AbstractNumbs : 1-244 246-429 430-478 579783 784-1032 1033-1326 1327.1563 1564-1873 1874-2119 2120.2360 2370-2629 2630-2831

Volume 16

Imae: 1 2 3 4 5 8 7 a 9 10 11 12

119

S. .. . .

..- %. ...--. . . . .. ", °

Equations of Motion Experimental Results1690 21 1282 83 1694 2246 1287 99 use Experimental Test Data

1552 673 2666 26092072 1553 Experimental Techniques

2503 230

Equipment Response Experimental Test Data1595 use Experimental Data .,.-

Equipment-Structure Interaction Explosion Detection (Nuclear)use Interaction: Equipment-Structure use Nuclear Explosion Detection

Equivalence Principle Explosion Effects559 600 911 162 913 164 165 916 867 448 809

912 923 914 425 2046 917 918 909Equivalent Linearization Method 1902 924 2045 1027 928 1849

1585 2759 2392 1594 2537 20192542

Equivalent Sound Levels1173 Explosions

2041 832Error Analysis

1301 1292 773 774 1335 1668 1219 Explosives2611 1502 1534 1515 2689 2541 2032 2043

2514 2042

Euler Beams "_-_-""_ _1294

Excitation2615 Failure Analysis

211 2092 1004 1005 1276 757 1698Exhaust Systems 1001 2544 1275

351 35 2806 249309

Failure DetectionExperimental Data 990 2602 2333 2094 2095 1536 747 1838 209

60 81 752 23 1034 115 306 1397 918 49 1840 2603 1836 1007 1539310 1511 1662 43 1904 885 1936 1488 959 2606 1837 1839680 2431 1952 883 1984 2155 2746 1908 1609 2097 2099940 2012 1133 2485 1789 .... ''

1240 2662 1553 2789 Fan Blades2170 1903 1661 2362 635 2827

1953 21952633 .O

Fan NoiseExperimental Modal Analysis 283 2424 2635 61040 1071 1092 1033 1034 995 1086 1047 1068 10891050 1091 1122 1093 1064 1065 1136 1067 1148 1139 Fans1060 1101 1132 1143 1084 1085 1176 1087 1218 1149 2151 1892 1893 2634 2375 1346 2827 10391070 1231 1182 1183 1094 1115 1226 1107 1228 1219 26361090 1301 1232 1253 1224 1185 1266 1157 1248 12291130 1242 1303 1244 1225 1316 1177 1268 1239 Fast Fourier Transform1220 1312 1503 1254 1245 1326 1217 1608 1269 2070 1504 1515 20671230 1332 1314 1255 2566 1237 1828 1509 17751240 1532 1504 1265 1257 18291250 2792 2564 1505 1267 2069 Fast Fourier Transformation1300 2309 use Fast Fourier Transform18302210

AbstroaNumbers: 1-244 245429 430-678 679-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

Volume 16INa: 1 2 3 4 5 6 7 a 9 10 11 12

120

.. ~~~............... .. ,....... ...... ,............... . ...... ,............. -,, .. o. . ...... .,,., .'. ,.,,- , ,,, .

*" JL•. "- ." I- .4 U &."I°

.- .7:

- Fasteners Finite Strip Method1116 1117 1118 2499

Fatigue Life Flexible Couplings2560 2571 2662 2494 2776 2467 2468 2559 2692 2693 1419

2614 25072774 2777 Flexible Foundations 0

374Fatigue (Materials)

375 Flexible Rotors -- .- ,1541 762 1333 1334 2335 246 247 2339

Fatigue Strength 2461 2372 2604 1566use Fatigue Life 2126

2336Fatigue Tests 9380 992 253 184 545 546 87 88 379 Flexural Vibration540 1422 953 734 735 1796 537 538 549 1700 1341 432 333 1284 1145 97 868 99550 1204 2775 547 1678 2229 1730 1651 1702 1743 1714 1925 667 2008 329 . .960 1874 1677 2228 2480 1721 1722 2123 1737 649

1490 2327 2011 1802 2463 2497 7292690 2481 2493 1209 .

1709Fault Detection 2189

use Failure Detection 22392499

Fiber Composites402 1493 2295 809 Flexural Waves

2563 1720 1704 2007

Finite Deformation Theory Flight Simulation1693 2634

Finite Difference Method Flight Test Data2562 2668

Finite Difference Technique Flight Tests1452 766 2707 2748 299 49

1546 Flight Vehicles

Finite Difference Theory 576 569use Finite Difference Technique

Floating BodiesFinite Element Technique use Floating Structures230 571 92 13 944 1065 96 217 448 1209260 721 112 93 1044 1115 186 227 728 1319 Floating Bridges -'440 881 222 333 1314 1295 266 327 788 1349 use Pontoon Bridges570 1041 522 813 1454 1305 566 937 1038 1759650 1091 702 1033 1734 1545 606 1157 1318 1859 Floating Ice1050 1261 842 1043 1994 1665 766 1167 1438 2109 19131250 1301 1122 1053 2104 1705 856 1257 1748 23991300 1401 1132 1113 2194 1735 1016 1337 1828 2639 Floating Structures1500 1731 1532 1123 2504 2365 1286 1657 2298 2649 412 943 24081680 2101 1552 1303 2815 1886 1867 23481700 2361 1862 1333 2106 2617 2618 Floors S1730 2162 1483 2196 2648 202 1455 2149 .2240 2352 2393 2296 .-

2310 2632 2486 Flow-Induced Excitation2690 2672 use Fluid-Induced Excitation2790

AbractNumbers: 1-244 245-429 430-878 579-783 784-1032 1033-1326 1327-1563 1564.1873 1874.2119 2120-2369 2370-2629 2630.2831

Volume 16

lawu: 1 2 3 4 5 6 7 a 9 10 11 12

121

. . . ~ ~ -. . . . . . . . . . . . . . . . . . . . . .

• ° ° . . • . -9 *., .'.

- -. -.-- .1-

Flow-Induced Vibration Foamsuse Fluid-Induced Excitation 626 2427

Flugge's Shell Theory Follower Forces1503 2715 322 1697"' ' ~2713 ---2713 Footings 0

Fluid Damping 2388use Viscous Damping

Force CoefficientsFluid Drives 1984

758 .,. -Force Measurement

Fluid-Filled Containers 401 2582 2633 2484340 1401 862 863 64 336 117 118 339 2581 01780 2371 873 114 2506 2727 2738 27292130 334 Forced Vibration2730 514 570 731 492 83 365 366 277 198 339

730 2132 2313 2485 1476 387 658 779Fluid-Filled Media 860 1028 1129740 2199

Fluid-Film Bearings Forgine Machinery2220 1993 496 1569 973 1356 1577

1576Fluid Hammer880 Fossil Power Plants

999Fluid-Induced Excitation2160 341 882 453 244 1445 116 7 18 869 Foundation Excitation a -2400 401 1752 883 474 1745 1446 27 48 1149 use Base Excitation S2740 451 1712 1783 804 1925 1556 117 118 1449

801 1772 2223 1064 2765 1746 127 608 1779 Foundations1241 2122 2233 1124 2016 517 898 2739 1370 2151 22 2153 794 795 1056 1057 2648 191751 2512 2353 1434 2496 1127 1478 2150 1592 1055 2647 26491781 2682 2423 1784 2506 1427 2198 21522141 2702 2633 2704 2766 14772401 2752 2703 2734 1747 Fourier Analysis -

2753 2764 1827 1461 2302 15132763 2017

Fourier TechniquesFluid-Induced Vibrations use Fourier Analysis

use Fluid-Induced ExcitationFourier Transformation

Fluids 1790 1712 1717 2578

1477 Fourier Transformsuse Fourier Transformation

* ."Flutter* 280 281 112 403 1074 1415 1336 277 1438 279 Fracture Properties

1140 531 282 1073 1394 1785 1346 327 2288 409 962 2363 874 475 186 927 22481860 1661 322 1413 1474 2195 1706 617 2448 479 2563 954 875 1726 1177 2498

2621 492 1623 2605 2416 1417 619 2064 935 2296 22972671 1072 1893 1697 659 20652831 1752 2453 2419

2422 2643 Framed Structures230 2044 2547 648

Flywheels2031 Frames

2240 1121 2242 654 1437 11382762 1114 2437

AbtractNumbes: 1-244 245-420 430.78 570-783 784-1032 1033-1326 1327-1563 1564.1873 1874-2110 2120-2369 2370-2629 2630-283

Volume 16

• Inue: 1 2 3 4 5 6 7 8 9 10 11 12

122

. . . . . . . . . . .. . . . . • o .

. . . . . . . . . . . .. . . . ..

Free Vibration i__ __ _730 101 842 2474 2485 106 1718 G860 1691 1812 1476 -G- .__ _ _.__ _."2470 1701 24722500 2722 Galerkin Method

1812 1284Freight Cars 2474

1923 1524 1525 1608 1609Galloping

Frequency Analysis 1711 1692 1433 2236 1272794 2551

Frequency Analyzers Gas Bearings1820 1233 500 1674 85 2686 •2070 2460 2685

Frequency Constraints Gas Turbine Engines777 2121 183

Frequency Dependent Parameters Gas Turbines228 2601 2 763 1895 2607

2788 1033

1520 231 2313 1234 1085 236 1267 78 399 1680 1681 1143 854 1537

2620 1671 2484 2825 416 2308 519 2440 20932181 556 2488

2576 Gear Drives -

1560Frequency Filters •

1521 Gear Teeth1680 211 1682 1113 1677 2689

Frequency Response 24631270 1253 1644 1026 10571480 2524 Gears

2690 502 503 2694 1535 1677 1678 639Frequency Response Function 1112 853 1565 1679610 1521 1232 1223 1034 1505 2077 208 749 1682 1995 2599-.2070 1515 1228 1039 2225

1555 12491509 Generators

2341 2334 2525 2266Fretting Corrosion

24 1998 Geometric Effects1194 2730 1112 1653 1625 226 2358 .

2463 1785 2006Friction 2713940 941

Geometric Imperfection EffectsFriction Excitation 670 512 2653 666 1719

314 1609 1682

Fruit Gimbals 11136 1316-

Fundamental Frequency Girders2491 1362 323 2735 668 2642 1135

2653Glass

Fuzes (Ordnance) 12172541 S

AbmstraNumb n: 1-244 246-429 430-678 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120.2360 2370-2629 2630-2831 "' "

Volume 16

laoe: 1 2 3 4 5 6 7 a 9 10 11 12

123

7.-t.. . .. . ..... o.°o.°.........y :~......io .°/........~o•,.°.:,~... .o.o°:...% L .

;., ."". - . . - .. ." .'." " - - .- ." " -'.'. .. ' . ., , . . . -. , ' ...- ' " . " " ,,, , - ,".".'. .... . . . .. ,, .",-, ,". ." .' .° . '• ' ° " " " . . . • . . - . ,° . , .. , . - .,. -,j. -.. '- '-'..' '• ,' . -". ° ,. ,°. .... . , ° ,

--- S ---. ,. .

Global Fitting Method Guyed Structures1264 1265 1266 20 272 273 1914 598

2160 812Granular Materials

263 Gyroelastic Properties2823

Graphic Methods1652 1263 1304 Gyroscopes

1383 1324 224

Graphic Techniques Gyroscopic Effects" 1021 1890 2125 496

Graphical Analysis -H-...-.. use Graphic Methods -H-_.•..

"" .. Green Function Half-Space900 824 2345 899 18532390 1169

Hamiltonian PrincipleGrids (Beam Grids) 28221130 •Handbooks

Grinding use Manuals and Handbooks2144 1309

Hankel TransformationGrinding Machinery 1853 25882810

Hardened InstallationsGround Effect 160 2475 447 918 ,

1213 920 2537

Ground Motion Hardened Structures. 2760 582 2383 654 926 2048 use Hardened Installations

Ground Shock Hardness Effects450 2041 444 2475 2626 2774910 924 .O_--

. 2040 1594 Harmonic Analysis347 348 349

Ground Vehicle Noise Harmonic Analyzers" 2162 195

Ground Vehicles Harmonic Balance Method300 1191 1382 613 34 35 76 828 189 365820 1381 1103 824 2415 976 978 299 2105 .1380 1921 1383 1374 1526 819

2161 1924 2416 1379 Harmonic Excitation1944 370 371 1733 364 675 1527 1808 509

770 1181 2235 2717 729- Ground Vibration 1480 2565 1059

2542 2310 27052650

Group Velocity 2

146 Harmonic Response411 1782 1853 836 417 318

Guard Rails 18522412

Head (Anatomy)Gun Barrels 1401 1948

91

AbstractNumbers: 1-244 245429 430-578 570-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2620 2630-2131

Volume I6

Issue: 1 2 3 4 5 6 7 a 9 10 ' 12

124

A -

-. . . . . . .. . . . . . . . . . .- n.... r

77 W. -Zo 5-

Heat Exchangers High Frequency Excitation2510 2262 1745 1746 1827 22572740 2512 2016

High Frequency Resonance TechniqueHeat Generation 1844 2098

1037High Speed Transportation

Heat Shields 752431 58 Z"""'"

Hilbert TransformsHeat Transfer 1289

427Hill Equation -,- - --

Helical Springs 945842 1649

Hingeless RotorsHelicopter Blades 1342

use Propeller BladesHitches

Helicopter Noise use Drawbars52 54 465 466 467 468 469

464 1396 827 848 Hoists1616 847 6471926 1927

Hole-Containing MediaHelcopter Rotors 1104

use Helicopters and RotorsHoles

Helicopter Seats 1117 888470 . 6.

Holographic TechniquesHelcopter Vibration 1300 2542 983 494 746

844 55 1976 1618 2580 1664 1346845 16561395 2196

Helicopters Honeycomb Structures290 51 1822 53 844 235 56 1617 1418 489 663 307 ,

131 2212 1653 854 845 576 2197 1928 1629621 2682 1654 1935 846 Horns (Sound Generators)

1874 2175 1656 8971894 2425 19362204 2176 Housings

330Helmets

2179 Hovercraft .use Ground Effect Machines

Helmholtz Integral Method522 Human Hand

830Helmhol tz Resonators

1294 589 Human Headuse Head (Anatomy)

Hertzian Contact2031 Human Organs

use Organs (Biological)High Frequencies

2797

Abstract %Number: 1.244 246.429 430,673 57-783 784-1032 10331326 1327-1563 1564-1873 1874-2119 2120-2360 2370-2620 2630-2831

Volume 16

I,,e: 1 2 3 4 S 6 7 S 0 10 11 12

12S

...................... ,

..... ..... . '.. ......... ',.....-...-,..:", .. .. ".'.. .. -,.... .'.'"'..... . ,.. , ... ."

Human Response Icebreakers (Ships)830 831 622 293 294 65 66 67 68 69 9351400 1401 832 483 484 295 426 1097 1398 13991950 1941 1402 623 624 1095 1096 1637 1638 1939 Impact Dampers1960 1961 1942 1403 1404 1405 1636 1947 1958 1949 use Shock Absorbers1970 1962 1633 1634 1635 1946 1957 1968 1959

1943 1944 1945 1956 1969 Impact Excitation 01963 1964 1955 1966 1710 2701 1494 325 2326 1727 27082433 1810

Hydraulic Systems Impact Force1530 451 1712 2055 1347 1823 2484 2029

Hydraulic Turbines Impact Excitation2579 2483 1274 105 1698 1219

2775Hydraulic Valves

316 Impact Noise690

Hydrodynamic Bearings j1 Impact Pairs

716 1187 !

Hydrodynamic Damping 71 18271 Impact Response

40 811 342 2043 934 385 356 157 38 839Hydrodynamic Excitation 110 1401 582 2244 935 2036 357 158 1709

82 1613 114 1596 650 2241 2042 2254 1295 2156 907 328 23292014 810 2155 1917 358 2549

1560 2037 2038 .Hydrodynamic Lubrication 2030 2157

1429 2110 2427

Hydrodynamic Response Impact Shock1532 849 268

Hydroelectric Power Plants Impact Testing2341 use Impact Tests

Hydrophones Impact Tests1820 1775 190 1601 2282 33 2325 186 1177 58

1636 1637 1218Hydrostatic Bearings 2427 1278

501 2688 16382438

Hydrostatic Excitation 2498102

Impedance-Matching TechniqueHysteretic Damping 1894

2771 134 1585 727 258 1791914 2355 2449 Impedance Technique

2084 1286 2308

Impellers-I- 2450 1344 1345 7 S

Ice Impulse Response2551 1463 935 2406 58 2350 1432 2013 2586 1027 2588 159

1015 2750 1902 20632405 2252 2663

2392

AbsuncNumbem: 1-244 24&429 430478 579-783 7844032 1033-1326 1327-1563 1564-1873 1874-2119 21202360 23702620 263831-.

Volum 1s

Iuw: 1 2 3 4 5 6 7 S 0 10 11 12

126

%,-.'° -.:o-." ::

..- .. .. ********%"*-***.. .. .

Impulse Testing Interaction: Rail-Wheel (cont'd)

1460 1354 1410 14111530

Interaction: Rotor-FoundationIncipient Failure Detection 2150 2151 2132 2373 2304 1905 579

999 1039

Indentation Interaction: Rotor-Stator156 1662 1416 248

Indirect Fourier Transform Interaction: Ship-Fender242 2578 840

Induction Motors Interaction: Shock Waves-Boundary Layer347 348 349 715 718 ,

1178Industrial Facilities

912 904 155 66 1647 1459 Interaction: Soil-Foundation1052 1634 905 1766 1847 2646 1367

1765 2747Interaction: Soil-Machine

Industrial Noise 2101use Industrial Facilities andNoise Generation Interaction: Soil-Structure

440 921 22 2283 374 1246 807 118 2159* Inflatable Structures 2390 2391 2393 1366 1587 1368 2389

*31 2773 1906 23882736

Influence Coefficient Matrixuse Influence Coefficient Method Interaction: Solid-Fluid

937Influence Coefficient Method

2336 2339 Interaction: Structure-Fluid510 511 602 163 944 1615 26 457 238 1559

Initial Deformation Effects 601 802 803 1304 456 1127 5682253 2225 881 2543 1614 1066 688

2335 15962366

Initial Value Problemsuse Boundary Value Problems Interaction: Structure-Foundation

1056 1057Instrumentation

2602 Interaction: Structure-Support1745

Instrumentation Response '" -1532 Interaction: Tire-Pavement ,

820 2192 2656Instruments

use Instrumentation Interaction: Tire-Wheel1412 2193

Integral Equations21 745 383 Interaction: Vehicle-Guideway

1610 1611Integration Methods _

218 2609 Interaction: Vehicle-Structure1611

Interaction: Equipment-Structure202 Interaction: Wheel-Pavement

2191 2154Interaction: Rail-Wheel460 461 1612 36 (cg6 9 d)

AbstractNumbers: 1-244 248429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

Volume 16

Issue: 1 2 3 4 6 6 7 8 9 10 11 12

127

.............. .................................. .. ."- . -- """" "" " "" ' % " "-" ' ' ' % -* ° ' ° -' '" - ' ° ". " -* " - ° ' " ' b -"""

%. - '*""" ""

°" - " " ,

°*' -°* -Z

Interferometric Techniques Journal Bearings2580 2542 953 1664 1656 1110 851 852 1993 84 2685 2686 497 1668 84g

1824 1670 1992 2134 1667 16691990 2684 2217

Interior Noise820 1621 472 43 44 45 1386 827 468 1619 Jump Phenomenon1920 1931 1922 1374 285 1387 1929 645 25691930 2171 1942 1897

21622172

-K-

Interior Vibration827 K-OAP (Komatsu-Dynamic Analysis Program)

1323 -

Internal Combustion Engines1110 351 1573 1574 1276 2491350 -_._._

Internal Damping -L-_..__ __ __ _ __'1443 518

LaGrange EquationsInternal Explosions 2311 2346 - ...

609

LaminatesInternal Forces use Layered Materials

1517Lanczos Method

Internal Stress 28172774

Landing FieldsIsolation use Aircraft Landing Areas S

2444Landing Gear

Isolators 791644 485 1976

1645 Landing Impactuse Landing and Impact Shock

Iteration" -2793 Landing Shock .6

Landing and Impact Shock

Landing Simulationuse Landing and Simulation

Jet Engines Laplace Transformation w..1760 1393 1575 1987 1069 1712 753 1545

2213Large Amplitudes

Jet Noise 670 1812 666 1718 991622 1459 2472

2712Joints (Anatomy)

2675 Large Frequencies1723

Joints (Junctions) 1723

640 641 642 643 504 855 86 87 88 509 Laser Structures1120 1421 882 1423 1114 1115 876 1997 1208 1119 1101 12171800 1801 1422 2003 1424 1685 1686 2467 1998 19992000 2001 1582 2603 1684 2095 1996 2557 2228 2229 Lasers2711 2451 2002 2444 2465 2466 2468 160 2797

1010

AbstractNumbers: 1-244 246-429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1673 1874-2119 2120-2369 2370-2629 2630-2631 .

Volum Is

Isue: 1 2 3 4 5 6 7 8 9 10 11 12

128

%ft

Lateral Response Linearization Methods785 1606 1551 1668

Lateral Vibration Linkages1612 1565 1138 1121 646I 0

Lathes Liquid Filled Containers2640 434 use Fluid Filled Containers

Launching Response Liquid Propellant Rocket Engines2428 4

Layered Damping Liquids2770 2772 2725 2351 0

Layered Materials Load Coincidence Method550 2561 112 723 744 665 96 2007 328 549 28241470 952 2063 1214 705 136 2238 1209

2502 2293 1744 1145 386 1439 Local Eigenvalue Modification Procedure2503 2295 736 1499 1503 1257

2725 1799 .2735 Locomotives

2442Leaf Springs

1409 Longitudinal Inertia Effects2509

Least Favorable Response Method1834 2597 Longitudinal Vibration

653 1145 1126 97Least Squares Method 1876

233 1014 225 1306 12591305 Longitudinal Waves

2007Levitation 2477

2246Loss Factor

Liapunov's Method ill 1684 2006use Lyapunov Functions

Low FrequenciesLife Line Systems 1130 1572 174 1465 2718 1159

2741 16341764

Limit Cycle Analysis2458 Lubrication " "

2462 84 2675 499 - -

Linear Analysis 2794use Linear Theories

Lumped Mass MethodLinear Damping use Lumped Parameter Method

use Viscous DampingLumped Parameter Method

Linear Systems 2030 2153 2449732 1186 947 2818 2819 01852 2816 Lyapunov's Method

418 419Linear Theories

AbstractNumbers: 1-244 245.429 430-578 57B-783 784-1032 1033-1326 1327-1583 1584-1873 1874-2119 2120-2369 2370-2629 2630-2831

*Volume 16

Isue: 1 2 3 4 5 6 7 a 9 10 11 12 . .

129

% % . -- ,4 ,,*.*,,',',' .................. ,...... ,. . .... ,. ,...-,,-,.-',,., -,,-......-......--

- '-'- -- ... . -' "- ... ..... ..... -,'-,--'--' - ,-2 ' '- ... . . . . . .. . . . . . . . . . . . . . . . . . . . . .- '..,.. ...-.. . . '-." . ." - - " ,". ."

I.~ , . .I,,..._-- ------ --

S

Machine Diagnostics Magnetohydrodynamicsuse Diagnostic Techniques 1732

Machine Elements Manuals and Handbooksuse Machinery Components 920 2112 1943 925

Machine Foundations Marine Engines 02153 1905 1369 2601 2693 826 . -

2649Marine Fenders

Machine Noise 840use Machinery Noise ''.'-

Marine PropellersMachine Tools 82 825 1569250 251 643 404 435 1046 1048 10491040 781 1013 434 1355 2146 1578 1579 Marine Risers1050 1543 644 2145 2378 2639 2660 271 122 123 124 125 126 127 2488 24892640 1354

2144 Masonry2020 2021 597 2519

Machinery 25202113 1686 2268

2290 2308 Mass Additive Technique1220

Machinery Components1521 Mass Beam Systems

2287Machinery Foundations

use Machine Foundations Mass Matrices -1133

Machinery-Induced Vibrations2051 Mass-Spring Systems

1869Machinery Noise

892 1943 1175 1176 227 Material Damping2277 192 1483 1378

Machinery Vibration Materials .10 526 227 2540 2549

2290Mathematical Modeling

Machining use Mathematical Models11 1543 2147 938

Mathematical ModelsMagnetic Beat,,gs 1350 1302 223 1554 1855 1466 347 2178 349

2461 413 1854 1556 817 2608 2519 I463 1826 1017

Magnetic Damping 593 14972292 2053 2054 803 1637

2163 2107Magnetic Fields 2177

2798 2317

Magnetic Suspension Techniques Matrix Methods 401641 2185 2360 1291 1133 1286 148

228Magnetically Induced Vibrations

2321 2372 Matrix Reduction Methods2610

Magnetoelastic Vibrations1440

AbstractNumbers: 1-244 245-429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

Volume 16

Issue: I 2 3 4 5 6 7 8 9 10 11 12

130

:~~~~~~~~.:...:..:..... -...... :..-.... ..... .-..............................-.................-................. ,..--...-......--..

%"".,,"

Maximum Likelihood Method Method of Superposition1025 1857 2722 2283

Measurement Instruments Microcomputersuse Measuring Instruments 2315

Measurement Techniques Microprocessors (Computers)750 751 1792 893 424 805 906 577 628 1389 2584 135 - .1520 911 1922 1243 514 1225 1586 1347 698 20392050 2321 2082 2583 894 1825 2716 2077 708 2079 Military Vehicles2080 2801 2572 2424 2585 2797 978 2319 2163 2415 1892320 2582 25992570 2802 Milling (Machining)

10Measuring Instrumentation

use Measuring Instruments Mindlin Theory866

Measuring Instruments980 981 1522 1243 534 405 976 137 558 1239 Mines (Excavations)1240 2071 1822 1523 984 805 986 577 988 1519 1943 65 6471520 2081 1823 1504 975 2316 977 1238 S2800 2581 2803 2234 985 2806 987 2078 Minimum Weight Design

2801 2424 1495 1237 2318 1316 23472584 1825 1837 27982804 2805 2317 Min-Max Technique

2356Measuring Techniques

use Measurement Techniques Missile Silos450 441 442 443 444 445 446 447 448 449 -

Mechanical Impedance 600 5612444 1055 2646 558

MissilesMechanical Reliability 560 2673 64 77

use Reliability 2830 1697

Mechanisms Mobility Method -1500 1552 1553 2500 1242 1994 1475

2762 2322

Membranes Modal Analysisuse Membranes (Structural Members) 1020 581 972 633 1014 995 1046 397 128 1039

1050 1091 1092 973 1084 1035 1086 557 778 1069Membranes (Structural Members) 1060 1101 1122 1053 1094 1055 1106 1047 1038 10892241 1722 1715 98 869 1070 1131 1142 1063 1124 1065 1176 1057 1088 1139

2492 1090 1151 1182 1093 1144 1085 1226 1067 1118 11491150 1221 1222 1113 1184 1115 1286 1107 1128 1209

Metal Working 1220 1251 1232 1123 1224 1185 1316 1127 1228 12291047 1230 1261 1242 1133 1244 1265 1326 1217 1238 1239

1240 1271 1252 1143 1264 1285 2306 1227 1248 1269Metals 1250 1281 1272 1263 1274 1315 2426 1237 1268 1289

1192 2783 1177 1260 1291 1292 1273 1284 1325 1287 1288 13092777 1300 1301 1302 1303 1304 2565 1307 1308 1379

1310 1311 1502 1313 1314 1317 1318 1759 •Method of Characteristics 1340 2251 2792 1333 1354 1827 1668 2069

163 89 1860 2791 1503 1504 2307 1828 21992310 2793 1644 2567 2308 2399

Method of Steepest Descent 2790 2564 2657 2368 2619use Steepest Descent Method 2644

Abstroct

Numbsis: 1.244 246-420 43078 5794783 7841032 1033-1320 1327-1563 164-173 1874-2119 2120-2360 2370-2629 26302831Volume -". -Ioe: 1 2 3 4 5 a 7 8 9 10 11 12

. . . .. . . . . . -

Modal Balancing Technique Monitoring Techniques762 2339 1010 211 212 563 404 765 996 747 1008 1009

1280 1011 1002 763 564 1005 1006 1007 2098 1309Modal Coupling 1501 1012 1003 764 1845 1846 1847 2608

1141 2341 1842 1013 784 2605 2606 20972811 2342 1543 1004 2607

Modal Damping 2812 1843 102428 2343 1544

2813 1844Modal Densities 2344

Monte Carlo Method - -.

Modal Models 2367454 2068 M

MooringsModal Superposition Method 40 92 2407 598 2409570 2304 215 396 1308 270

2488Motorcycles

Modal Synthesis 2181 1983 782310 2311 1262 1323 395 1066 2368 2413

1272 555 1246Motor Vehicle Engines

Modal Tests 372 1339204 266 77 2068

2086 1017 Motor Vehicle Noise1922 1375 1376 1899

Mode Acceleration Method396 Motor Vehicles

Mode Displacement Method 1374 35 1378 S396 1505

1985Mode Modification Method

1441 1254 Motors372 686 687

Mode Shapes 757320 1591 502 23 674 115 236 1707 1608 649 23371150 1721 672 723 235 336 1737 1988 1039 S1740 2251 872 813 335 516 2207 1139 Mountings2010 2641 1862 1053 1345 526 2577 1259 2440 1101 403 1098 309

2731 2012 1113 1475 656 2717 2219 2678 10692492 1573 1665 1666 2679

1693 2555 2196 27092713 23962793 Moving Loads - "

140 91 652 14 2706 1447 728 669Mode Superposition Method 1580 2161 1372 254

use Modal Superposition Method 1720 2481 2482 17042380 2721 2154

Model Testing441 444 445 449 Mufflers2511 994 2595 889 351 2806 249

Model Tests Multibeam Systems 0use Model Testing 2702 2703 506

Moment Coefficients Multidegree of Freedom Structures1984 use Multidegree of Freedom Systems

AbstractNumbers: 1-244 245-429 430-578 579-783 784-1032 1033-1326 1327.1563 1564-1873 1874-2119 2120-2369 2370-2629 2630.2831

Volume 16

*Issu: 1 2 3 4 5 6 7 8 9 10 11 12

132

% ' ° o° *-. %" .- ° .... . . . .-. .".. . . ... " -.. .-.. . . . . • .. , ° . ., .-.- ., .. , . • .." . , " ,' ".'''., '.

.°''° "'%°"". ". °° • " ° 0."° °. " ". •.% ,'°°% % ." ". ° • • " o" ", , . " % .% °%' . •,°'. % . ,'' ., ". • °"".. .". ."..".. . . . . . . .,'% _. % % =% - . % % % % •. • . --. , .- .•% . - .,* ,°.• °.• •,• - , .•° -

7S

Multidegree of Freedom Systems Noise Barriers770 2821 1304 236 177 2548 769 2531 1172 1173 2026 2527 1619

1057 2578 25261267

Noise ControlMultimicrophone Technique use Noise Reduction

2572 0Noise Generation

Multiple Scale Method 30 51 362 313 1044 65 6 47 8 469 ---

1480 1481 1650 131 522 1604 1425 66 847 828 1459 "-,'-.2630 1351 1062 1634 1765 2446 1167 848 1729--

Multiple Sine Dwell Method 1651 1572 2634 1995 2656 1377 1728 2469 --1093 1084 2069 2631 2192 2165 2197 2278

2635 2377 2638Multipoint Excitation Technique 26371230 1071 1085 1086 1227 1228 1089

1231 1505 1576 1577 2068 1229 Noise-Induced Excitation1239 827

Multistory Buildings Noise Measurement1590 791 792 1053 134 255 2386 17 258 259 1390 2081 142 43 54 465 46 137 618 249

1051 1362 1363 1584 2645 437 788 1359 2170 892 903 464 905 66 467 978 13891437 2818 1032 1243 2424 976 827 1519 01517 1622 2413 977

Musical Instruments Noise Meters772 1294 use Sound Level Meters

2554Noise Prediction '

1041 52 53 44 1175 466 1607 26591681 472 1174 1396 0

-N- 1931 5221052

NASTRAN (Computer Programs) 22721860 2362 2632

Natural Frequencies Noise Path Diagnostics -

320 271 102 23 64 95 336 107 28 649 468490 331 502 213 674 115 516 567 98 10391150 661 512 573 944 335 526 997 1448 1139 Noise Propagation1430 1591 662 723 1014 665 656 1707 1658 1259 use Sound Propagation1740 1721 672 813 1044 1345 1666 1737 1738 22491790 2251 872 1053 1394 1475 2006 2207 1878 Noise Reduction20102351 1442 1113 1444 1665 2196 2577 1988 30 141 12 613 904 35 6 787 688 14592490 2501 1713 1273 1684 2245 2396 2717 2208 350 351 832 1083 1374 45 36 1037 1348 1899

*2641 1742 1283 2555 2727 1410 471 1042 1583 1764 155 286 1387 1648 21092731 1862 1443 2575 2530 1411 1112 2273 2274 295 626 1457 1898 2639

2012 1573 2705 1871 1172 2743 2664 315 886 1647 2028 26592442 1693 2171 1252 905 906 20272452 2553 1932 1045 1176 22772492 2713 1972 1375 1356 27472652 2793 2165 1376

2375 1526Network Analysis Theory 2665 1766 0

214 2745 26362656

* Newmark Method1028 Noise Shielding

2665Noise Analyzers

1921

* AbstractNumbers: 1-244 245-429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

Vol mre Is

Isueu: 1 2 3 4 5 6 7 9 10 11 12

133.. . ... .

-.. .. .. . . -- *.- -- -- -- -- -. : ..-. .--..

LS

Noise Source Identification Nonsynchronous Vibration820 702 143 1045 1576 1577 138 139 2 348

973 1897 468Normal Form Method

Noise Tolerance 408 409624 1398 1399 6

Normal ModesNoise Transmission 2790 1302 2565 1456 858 769 -,. .

820 681 682 2193 2667 2346 2748

Nomographs Nozzles580 2454 2455 2456 888

Noncontacting Probes Nuclear Explosion Effects 9use Proximity Probes 600 441 1392 164 165 926 917 169

Nondestructive Testing Nuclear Explosionsuse Nondestructive Tests 50 908

Nondestructive Tests Nuclear Fuel Elements390 402 393 2084 2795 2417 1518 989 2702 2703 804

990 1528 1529 S2590 2409 Nuclear Power Plants

680 202 603 344 605 266 607 678 1759Nonholonomic Systems 452 1023 454 805 606 2157 1008 2159

406 1022 1373 604 1065 776 21581595 2136

Nonlinear Analysis 2155 2156use Nonlinear Theories 2365

2595 0Nonlinear Damping 2655

1752425 Nuclear Reactor Components

800 421 453 804 266 267 2598 2479Nonlinear Programming 2400 601 2403 456

2194 1699 801 2513

Nonlinear Response Nuclear Reactor Containment .20 603 1146 647 1063 934 605 456 609

1567 1064 606 809

Nonlinear Springs Nuclear Reactors529 210 121 202 803 24 25 26 457 608 89

810 811 602 1003 884 455 806 807 808 679Nonlinear Systems 881 802 1753 2094 605 2086 1757 998 989730 2821 232 3 725 1527 408 409 2401 1152 2343 2404 885 2366 1038770 772 775 769 2402 2654 1688

121912892289 Nuclear Weapons Effects

450 162 525 919Nonlinear Theories 7202720 2312 873 1144 2285 867 2108 2489 0

2732 1694 2355 Numerical Analysis2820 92 1623 114 1856 157 1818 169

Nonlinear Vibration611 1705 108 Numerical Methods" ~1295 1146-•""""

Nonparametric Identification Technique 1295 11462821 D -S

* Abstract- Number: 1.244 245-429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1873 18742119 2120.2369 2370-2629 2630-2831

• ,. Volume 16

Issue: 1 2 3 4 6 6 7 8 9 10 11 12

134

.........................................................................................

% 7

Overhead Cranes1116

-0-Overlap Processing Method 1397

Oceans 13972748 1169 _____-___._ -'___

Off-Highway Vehicles P-__-_._",_"-"_80 1991 823 I

2181 2443 Panels1580 1831 2242 2713 2714 2715 327 1438 659 - :

Off-Shore Structures 2712 261920 21 272 273 814 815 516 27 28 2930 191 342 813 1914 855 816 1147 88 269 Paper Products270 271 812 1913 1365 1066 2387 268 2099 22902160 981 1912 2523 1915 1596 2407 598 2409

2811 2405 2406 2408 Parachutes291

Oil Dampers1791 Parallelepiped •

1476Oil Film Bearings

1332 939 Parameter Identification Technique1569 1020 1311 1222 233 234 235 236 1217 418 4192219 1220 1312 473 454 415 416 1307 1088 569

1310 1512 1313 614 485 776 2127 1268 1019Oil Whip Phenomena 1510 1513 1264 1306 1308 1309

2687 2306 2308 1509 02796 2668 2309

Optical Benches 256963

Parametric ExcitationOptical Methods 770 1131 1787 1788

135 2797 1181

Optimization Parametric Resonance ._2520 841 62 2194 625 2356 237 668 1049 2125 1787 1788

1041 2182 2175 2616 6272491 777 Parametric Vibration

2357 2052 2124 2738

Optimum Design Pattern REcognition Techniques1571 972 2436 1978 .1000

Orthotropic Plates Pavement Roughnessuse Plates and Orthotropism 1384 1385

Orthotropi sm Pavements1442 723 867 668 1910

1807 868Pendulums

Oscillation 1181 73 2236 2288 0

17502670 Penetration

1910 2033 934 2035 2038Oscillators 20341550 172 194 1236 529

2049

AbstractNumbers: 1-244 245-429 430578 579-783 784.1032 1033.1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

Volume 16

Iuue: 1 2 3 4 5 6 7 a 9 10 11 12

135

. . . . . . . . .. . .. .. . .

- .- - . . . .

Perforation Pipelines2244 880 121 342 884 117 118 119

2511 1022 1754 987 878 269Periodic Excitation 2014 1447 2258 8791230 1511 122 123 74 125 126 2167 368 499 2259

172 124 1746 2049332 724 2696 Pipes (Tubes)732 2354 240 122 123 124 125 126 127 128 129

1232 2514 515 486 877 1758 14492462 955 5161755 876

Periodic Response 2005430 793 2105 326 368 2015 -730 2275 2376 0

Piping SystemsPeriodic Structures 680 311 1152 343 344 345 1756 297 378 679

70 1345 1486 97 1150 881 1753 2094 2255 2256 517 678 10991475 1450 1151 2513 607 1448 1149

2100 2261 1757 1759Perturbation Theory 2260 2361 2257

1291 2762 224 1336 4081128 Pistons S

Phase Data 152 153195

Planet GearsPhase Effects 502

731 212 2644 187 2088 1689207 Plastic Deformation

1867 .Phase Separation Method

2309 Plasticity Theory1811

Photoelastic Analysis2320 Plastics

2590Piezoceramics

685 Plates100 101 332 13 104 105 106 107 108 99 .

Piezoelectric Gages 110 111 662 103 354 665 276 667 198 109982 330 331 672 573 664 1145 296 867 328 199

510 511 1122 663 744 1725 536 1717 668 329Piezoelectricity 660 661 1142 1143 1144 2245 666 1727 868 509

752 113 2587 198 1140 1141 1442 1723 1284 2495 866 2247 1138 8692072 753 1440 1441 1722 2033 1724 1286 2417 1718 1439

1720 1721 1832 2243 2034 1716 2497 2498 1719Pile Driving 2280 1731 2012 2403 2244 1726 2717 2718 2209 -

264 2500 2011 2072 2493 2494 2496 2499.--2720 2501 2622 2723 2724 2716 2619

Pile Foundations 2721 2722 2763 2734 2719 ..-

2318 2764

Pile Structures Pneumatic Dampers2650 861 795 27 2318 632• .. 1581 2388

Pneumatic Isolators

Pipe Whip 1408240 1022 2254 455

2255 Pneumatic Shock Absorbers2434

Pipeline Systemsuse Pipelines

AbstractNumbers: 1-244 245-429 430-678 579.783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

Volume 16

Issue: 1 2 3 4 5 6 7 8 9 10 11 12

136

ZS• ~~~~~~~~~~~~~~. .. -..-.. ........... .................... .... .. ...... .....,-........- ....,....,............,.,..,....... ..............°•o•.. ..........- o.......... ....................... ... o... ......... . .• .

... . . ... . . . .. . . ... ..... ......- . ....

Pneumatic Springs Projectile Penetration71 2033 2034 2035 2036 2037 2038

Pogo Oscillation Prony Series Analysisuse Pogo Effect 233 139

Point Mapping Method Propellants2103 829

Point Source Excitation Propeller Blades1703 1814 290 82 53 1654 825 636 637 8482533 1652 493 2204 1395 1656 847

2212 1653 1655 1617Polyreference Method 2362 2175 2197

1231 1268 1269 2682 9

Porous Materials Propeller Noise740 1856 1647 284 285

825Power Generators (Electric)

use Power Plants (Facilities) Propellers1860 1861 82

Power Plants (Facilities) 1 1 8311 2342 1373 996 2137 799 Protective Shelters

2341 2266 1149 160 361 442 443 444 445 446 447 448 449360 441 1472 923 924 925 2537 918 719

Power Spectra 450 561 2544 720741 1512 404 920 921 919

Power Spectral Density Protective Shields .2723 145 816 2031

Power Spectral Density Function Proximity Probes140 774 1010 982 984 986

2332Power Train

use Driveline Pulse Excitation -17TO 1533 675 2287 2509

Power Transmission Systems1901 2225 1407 590 311 2142 2143 1344 2135 2136 7 8

1420 431 2312 2234 2695 2376 1037 1038Precast Concrete 1891 1347 10981580 2141 1887 1348

2377 1448Prediction Techniques 1688950 2531 52 1933 544 505 436 117 2418 169 2688 0

2560 162 Pyrotechnic Shock Environment59

Pressure Vessels 2539 -

2343 24 25 2507 2508 9892094 -'_'-___ ___"-'_"

Principle of Virtual Work -Q-__ _ _ _"__ -_716 0Quadratic

DampingProbability Theory 1019

475 10182158 Quadratic Reduction

1297Proceedings

1031 1032 423 999

* AbstrnctNumber: 1-244 245-429 430-578 579-783 784-1032 1033-1326 1327-1663 1564-1873 1874-2119 2120-2369 23702820 2630-2M3)

Volume 16

Imue: 1 2 3 4 5 6 7 a 0 10 11 12

69

137

IL..-.. . V~.--o....I.o

%2,°o~~~~~~~~~~~~~~~~~~~~~~.. ..... .-....-. •° .- °.-..o-. ....°..-. ... .........-.... . ............ : .......-... : ...-...... :......-

Qualification Tests Railway Wheels1530 1373 604 605 806 2567 2629 1650 1651 6341660 754 615 2190

1424 1595Random Decrement Technique

Quartz 191 1313 20991716

Random ExcitationQuartz Crystals 630 61 1232 943 434 1225 676 527 158 1229

2011 1832 194 556 199 790 991 2792 824 1585 1456 727 278 18291824 1236 1180 2291 21292314 2771 2289

2729Quartz Resonators Random Response

use Quartz Crystals and Resonators 2504 2385

Quasilinearization Technique Random Vibration2791 2126 451 192 423 175 606 367

2345Quasi-Modal Analysis

2312 Rayleigh Method2793 2704 216 -

-R- Rayleigh-Ritz Method

565Radial Vibrations

2587 Rayleigh Waves

Radiation Impedance

151 152 Real Time Spectrum Analyzers1891 977

Radioactive Materials817 Real Time Technique

2493 2315 418 419Rail Transportation 2605

2165 817Reciprocating Engines 0

Railroad Cars 15701524 1525 1608 459

2658 1609 Reciprocating Compressors2330

Railroad Tracks822 1116 Rectangular Beams2482 320

Railroad Trains Rectangular Bodies630 2411 822 1173 614 76 1067 458 1862

2441 2442 2166 1607 14082657 1558 Rectangular Ducts

681 682Railroad Transportation

use Rail Transportation Rectangular Plates2500 331 2012 665 866 1717 1718 1719 0

Railroad Vehicles 1141 1286 2497 2499use Railroad Trains 2717

Rails Recursive Methodsuse Railroad Tracks 233

Railway Vehiclesuse Railroad Trains S

Abstr "'Numbers: 1-24 246420 430-578 579-763 784-1032 1033-1326 1327-153 1564-1873 1874-2119 2120-2369 2370-2629 26M0.2831

Volume 16

Isu: 1 2 3 4 5 6 7 8 9 10 11 12

138

"".'.".";'.";..-",. .. "-",.'• ".".. ". ",'";" "..":",."."/ "" ". ",." .' ." ............"....'..".",.,..".".",".....-..."."."....•.

-~~~~~~~~~~~~~~~~~~~~~~~~." ..-. " . . .'. .. .... .. .'.. .... ".... -... . . .... ,. ...... .. .... _,'..'."

... .. ... .. ... .. ... .. ... .. ... L_

Reduction Methods Restoring Factors2821 1297 768 2438

Regression Analysis Retaining Walls2668 891

Regulations Reverberation2116 2117 2754

Reinforced Concrete Reverberation Chambers450 161 1432 603 924 605 1146 17 258 439 2025 2276 698640 641 1762 913 934 865 1436 917 438 4491360 2711 1802 1763 1114 1435 2036 1517 448 599 Reviews

2152 1134 1907 928 609 620 431 2582 173 1344 55 76 257 108 192242 1364 2157 1778 719 1570 1611 243 2564 155 116 907 638 559 02392 1594 1698 809 1931 453 1695 196 947 1548 719

2044 839 2381 533 2625 476 1567 1688 22892009 2421 933 796 1987 2308 27692019 1983 946 26882089 2213 14662369 2293 2166

2506Reinforced Plastics

184 Ride Dynamics1380-2411 612 823 2414 1605 2327 818 1379

Reliability 2624 28292546 2559

Rigid Body ModesResonance 1245 1 12452143 1808 o1

Rigid FoundationsResonance Bar Techniques 1863 2647

979Rigid Plastic Properties

Resonance Pass Through 357 358 12991340 173 246 247

Rigid RotorsResonance Tests 761 2134

2569Rigid Wall Ducts

Resonant Bar Technique 1452 1454use Resonance Bar Technique

RingsResonant Cavities 1743 634 875 1446 677 359

use Cavity Resonators 874 2435 . ,1744 .

Resonant Frequencies 24642011 2502 493 1294 1875 1716 658 579

1433 2719 Ritz Method1700 2501 2492 1705 1666 2648

Resonant Response120 271 2732 1663 2214 2205 2206 2407 898 879 Riveted Joints

1731 2589 1582 5042451 SRoad Tests (Ride Dynamics)

Resonators use Ride Dynamics1824 556

Roads (Pavements)Response Spectra 1061 13722100 202 979

AbWtacNumbers: 1-244 24&-420 430-578 579-783 784-1032 1033-1326 1327-1563 1664-1873 1874-2110 2120-2360 23702629 26302831

Volume 16I w,: 1 l2 3 4 5 -701

139

*~~~~ .* .. .- . . .*.. . . . . . . .

. . . . . . . . . . .,

* ~ ~ .: ~ .~- * .... *. *.._- .. . . . . .

*..-.d.I.. *.: , :, .. ***.%., ... *.*..* ' . .*. .* .* . -......

- -. . .. .. . . .. . - 6rrr .. C . . -. C

Rock Drills Rotational Response12 2119 2120

Rocks Rotatory Inertia Effects793 2039 870 1701 652 653 1734 2705 866 318 99

1730 2731 673 858 2189 0Rods

1431 2352 93 2005 356 1127 1128 2479 1723 25092702 2703 506 1697

646 Rotor Bearing Systems1126 use Rotors

Roller Bearings Rotor Blades (Rotary Wings)756 use Helicopters and S

Propeller BladesRolling Contact Bearings2600 1841 1842 1844 2098 1109 Rotor Blades (Turbomachinery)

2091 2812 2224 2808 1020 491 132 313 1986 217 1988 21991660 2202 83 1107 2198 2209

Rolling Friction 2203 27091792 1205 1206 2453

Roofs Rotor-Induced Vibration2022 1976

Rooms Rotors1771 2537 430 1 2 373 4 245 56 7 588 579

1330 51 582 433 584 785 246 247 1008 1279Root Mean Squares 1340 131 762 583 844 845 846 487 1328 1329

932 203 2047 398 1890 431 1332 1333 1024 1335 1336 1337 1928 18892130 581 2222 2123 1284 1565 1566 1567 2128 2139 .

" Rotary Inertia Effects 2150 621 2312 2133 1334 2125 2096 1617 2339 .use Rotatory Inertia Effects 2340 761 2332 2373 1564 2126 1877 2649

2370 1341 2372 1874 2796 2097Rotary Pumps 2630 1541 1894 2127

1891 1098 2121 21242131 2134

Rotary Wings 2231 2194 ,use Propeller Blades and 2371 2604Helicopters 2461

2631Rotating Liquid Columns

2351 Rotors (Machine Elements)..-

use RotorsRotating Machinery1040 1871 563 1884 1845 1646 1687 Rubber

1885 2216 2137 use Elastomers

2306 Rubber Bearings

Rotating Structures1430 1441 843 64 326 1657 1568 779 Runways1690 1343 1786 2177 1910 2032 21542120 1743 2237 0

Rotating Vector Method1270

Rotational Degrees of Freedom Safety Belts1220 1255 use Seat Belts

AbmtrNunp,: 1-244 246-429 430-670 579-783 784-1032 1033-1326 1327-163 1664-1873 1874-2119 2120-23689 2370.2629 2630-2631 .. . .

Vokom 16

luMe: 1 2 3 4 6 7 a 9 10 11 12

140

• • ' ° • ° "e " "° '-*,. . . .* ' " e . . .... ..- . . . . . ..- **. . . .... ...... . ...•. . . . . . .... .. ,-,.. . "...-... .- , .",... '_,. , . .. , .. ' • ,.- .j..',, .,,-'_':" , _

Safety Restraint Systems Seismic Design (cont'd)1600 31 32 33 2114 2115 2116 1937 1918 1919 2100 2261 932 343 884 2655 2386 14371960 1601 2113 1967 1968 1949 2760 2391 2702 933 1584 2247

2117 1969 2711 2513 2394 28072703 2404

Sand

1371 263 1906 1027 929 Seismic Excitation640 121 413 26 1587 1128 1589

Sandwich Laminates 790 641 523 1756 1368 2709

*use Sandwich Structures 1270 891 2383 2729

Sandwich Panels 3028use Panels and Sandwich Structures Seismic Response

260 311 452 133 334 265 336 297 678 1469Sandwich Structures 310 1031 592 263 594 595 596 597 798 2259

664 1496 508 1739 2520 2741 602 603 604 605 1436 717 808 24792006 1532 833 834 805 2286 807 1468 2519

1592 1363 994 815 2546 1467 2148 2759Satellite Antennas 2242 1373 1114 1595 1757

use Spacecraft Antennas 2312 1763 1534 2135 2047 ....

1903 1904 2265 2547Satellites 2264 2285

1221 2177 22842384

Saws 26441183 2637 2638

Seismic Response SpectraScaling 202 933 2807 259

2807 208 4492089 Seismic Tests2329 2521 754 266 2629-'

2264 806Screening

428 429 Seismic Waves1471 1214 1825 1566

Seals 185690 2231 2232 2233 2234 245 2696 317 1688 1429 2066

2230 2813 2675 1687 168902695 Self-Excited Vibrations

2050 2751 2687 938Seat Belts 1428

1321 33 2115 2738

Seats Semiactive Isolation1911 1974 2443

Seismic Analysis Sensitivity Analysis410 161 22 363 215 496 437 258 259 2306 2127 21291060 421 1762 803 345 606 2158 4391450 1151 2023 1246 2548 679 Servomechanisms2260 2361 2283 1059 14902370 2391 2393 2149

2159 Shafts580 1331 432 3 2374 1335 786 1007 1338 15690

Seismic Design 1330 1341 862 863 2464 1805 1036 1327 1418 21291360 261 362 133 114 805 1566 797 1058 1359 1570 1571 2132 2463 2135 1886 1877 1878 21391590 1121 72 03 941065 2186 1357 1588 2369 2130 2335 2128

2140(cont'd)

Num n: 1-244 246429 430.678 579-783 784-1032 1033133 1327-1683 1664-1873 1874-2119 21202389 2702 2630-2831

Vokme 16

oitn: 1 2 3 4 6 6 7 a 9 10 11 12

141

...... .* -.- .

Shafts (Machine Elements) Shipsuse Shafts 40 1581 2662 1614 275 276 37 38 39

2660 2661 1615 268 2659Shakedown Theorem 1925

219Shock Absorbers 0

Shakers 2681 72 2434 2435 2436 177 178 17891511 2322 754 1217 3081531 1978

Shear Deformation Effects Shock Absorptionuse Transverse Shear Deformation Effects 2179

Shear Modulus Shock Isolation979 2183

Shear Strength Shock Isolators2486 71 1975

Shear Vibration Shock Loads2496 109 use Shock Excitation

Shear Waves Shock Measurement737 use Measurement Techniques

and Shock ResponseShells260 111 112 113 674 335 336 147 148 339 Shock Response670 671 512 633 1444 675 606 337 208 669 560 442 1863 664 2545 817 778 459870 871 672 673 1734 1735 1146 1147 338 1739 2540 1864 2418 18691030 1401 872 1033 2504 2725 1666 1447 778 2249 25781740 1741 1742 1443 2734 2735 1736 1557 1148 25092250 2251 2252 1733 2506 1737 1738 2619 Shock Response Spectra

2731 2502 2013 2726 1777 2248 60 201 242 933 250 2426 2072732 2253 2736 2507 2508

2503 2727 2728 Shock Tests2623 2737 560 444 205 446 447 448 592733 1224 445 2596 2088 449

1835 2328 2539 -Shells of Revolution 1472 525 168

2731 1444 2505 778Shock Tubes

Shielding 1833 11792664 2665

Shock Wave AttenuationShip Hulls 443 " "1135 276 2167 2168 443 AU.2417 Shock Wave Propagation

170 171 712 713 524 525 166 167 169Ship Vibration 359 ... -

2168 2169Shock Wave Reflection

Shipboard Equipment Response 16341 2466 197 1068 0

2418 Shock Waves50 511 2543 714 715 346 1557 2018 2279

Shipping Containers 930 931 2724 965 1747 2758 " " "*2110 817 2438 459 1030 2021 1817

2439 2020 2281 25372250 27572280

* AbstractNumbew: 1-244 248-429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2631

Volume 16

Inae: 1 2 3 4 B 6 7 6 9 10 11 12

142

% .%, .... -..------. . ...... . .. . . .-.-. .

Shrouds Snap Through Problems2200 1892 2491

Signal-Noise Ratio Snubbers771 2260 308 1099

Signal Processing Techniques Soils 0400 771 702 2803 2804 2805 1470 2651 263 1215 1027 9092620 1311 2802 2390 1817 2039

2801 2389 ..2759 -..

Signature Analysis1501 212 2573 196 209 Solid Propellant Rocket Engines

2579 2563 2576

Silencers Solid Rocket Propellants ...353 625 486 309 1696

Silos (Missile) Sonarsuse Missile Silos 1241

Simulation Sonic Boom410 231 412 1623 544 2615 908 459 1458 2529 "1190 251 422 1973 2434 26081380 1221 442 2614 Sound Generation

2632 2190 1252 1773 2764 1156 6372752 1157

Single Degree of Freedom Systems1180 1481 272 176 1907 158 1019 Sound Insulation -1480 1266 use Acoustic Insulation

Single Point Excitation Technique Sound Intensity1085 1226 1227 2069 1520 1171 1922 1523 2574 2585 1347 139

2570 2572 2583Singularity Expansion Method390 391 Sound Level'Meters

1819•

Skew Plates 181

1144 Sound Measurement751 2572 2583 2514 756

Slabs 1776640 2038

Sound Power LevelsSlider Bearings 750 2572 893 8942460 5.-

Sound Pressure LevelsSliding Friction 57

1996Sound Propagation

Sliding Supports 141 2166 2268833

Sound TransmissionSloshing 660 1761 826 887 888 1929340 602 513 1445 26 829 1896 987 S

1780 862 863 6762730 2653 2506 Sound Transmission Loss

890 1831 353 2585 896 789Small Amplitudes 2271

2474 2797

* AbstractNumb.,: 1-244 245-429 430-578 579-783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120,2369 2370-2629 26302831"

Volume 16

Iu: 1 2 3 4 5 6 7 a 9 10 11 12

143

%

.. ".-,.. . . . . . ...

* . . . . o

Sound Waves Specifications330 521 462 683 144 105 696 147 708 149 754 2538520 691 692 693 154 695 706 697 1148 699690 701 902 703 354 705 886 707 1158 869 Spectral Analysis700 711 1162 743 694 1145 1166 1157 1168 889 use Spectrum Analysis710 901 1252 1153 704 1165 1816 1457 1748 1159 0970 971 1452 1162 744 1465 2026 1647 1768 1169 Spectrum Analysis1160 1161 1462 1213 1104 1715 2516 1727 1818 1739 221 242 363 974 2305 1826 197 15081170 1361 1772 1453 1154 2275 2536 1777 2518 1769 1131 2192 1064 1507 24481640 1451 2532 1463 1164 2515 2267 2588 2269 2571 2354 25781770 1461 2742 1703 1454 2755 2517 2728 27492750 1771 2263 1464 2737 2748 Spectrum Analyzers

2751 2533 2364 192 9772723 25342733 2744 Spheres2753 2754 970 1136

Spacecraft Spherical Shells60 2351 482 933 204 1085 1086 1087 1088 1089 670 513 2013 1734 675 1737 339

1120 1092 1093 1084 1105 2426 1287 1539 2252 22531940 1303 1194 1397 24292430 2323 1244 2307 Spindles

2674 4201050

Spacecraft Antennas61 62 1088 Sports Equipment

292 1118 1250

Spring-Mass SystemsSpacecraft Components use Mass-Spring Systems .1130 63 207 2088

513 2558 Springs71 842 1106 629

Spacecraft Equipment 1409 . "1632 1649

2679Spacecraft Equipment Response

63 2428 59 Spur Gears

1682 503 2225Space Shuttles 11131090 1091 513 1094 995 2456 57 58 829

2431 2454 2455 2427 2178 Squeeze Film Bearings2457 2221 2222 373 1418

2462 2223Fatigue Life 0950 211 312 543 24 185 86 377 28 539 Squeeze Film Dampers1190 381 542 853 544 535 376 587 378 949 2221 182 373 485 14181200 541 942 1103 564 1135 476 687 548 959 5331280 951 952 1193 954 1195 536 957 588 11891380 1191 1082 1203 1194 1205 736 1197 878 1199 Stability1680 1201 1192 1423 1204 1365 956 1207 948 1469 291 232 1073 104 885 216 407 2768 26491800 1391 1202 1493 1314 1495 1006 1497 958 1489 671 2122 2134 2425 726 2167 27692000 1421 1492 1603 1384 1795 1196 1677 1188 1499 1111 2822 2734 1186 2237 02060 1491 1582 1643 1424 1805 1206 1797 1198 1679 2121 24162160 1801 1802 1793 1494 1935 1496 2057 1208 1799

2001 2002 1803 1754 2295 1886 2447 1468 1999 Stability Analysis2061 2062 2063 1794 2455 2056 2457 1488 2059 use Stability2211 2203 1804 2456 1498 23792431 1934 1798 2409

2294 20582454 2228

Abstra-t

Numbers: 1-244 245-429 430-678 579-783 784-1032 1033.1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2631

Volume 16

Isue: 1 2 3 4 5 8 7 8 9 10 11 12

144. . .. .. . . . . . . . . . . . . . . .

...... ...... .... :...... .....

-... .-....... ... .. •.. ... ,.......--......o•....--.. ,.. ... ....-. . .o. '. . .. . ,. . . . ..- . . .." . ..o. .,. . . . ..,-. . . . . ..,. . . . . . . . . ..o. ..-°* .' .' "° '% °,. ,

.' , -' •° % % ° -,, °o .° % '.-•-' .° o .

Stabilization Steering Wheels1181 use Steering Gear

Stage Separation Step Relaxation Method60 59 1130

Stalling Stick-Slip Response1880 1781 1882 1783 1784 2545 2767 716

*2550 1881 1883Stiffened Plates

Standards 1724 1725use Standards and Codes

Stiffened StructuresStandards and Codes 27141870 761 782 2113 424 425 426 437 2628 2369

1871 1062 2114 2115 1927 2629 Stiffener Effects2415 2627 1150 2007

Start Up Response Stiffness Coefficients936 2201 1672 583 1674 2136 2227 1109

2132 1563 1609

State Space Approach 2442 16731046 1978

Stiffness EffectsStatistical Analysis 940 942 496

381 414 915 366 1682774 2206

Stiffness MethodsStatistical Energy Analysis 1133230 773 518

StingersStatistical Energy Methods 2322

111 472Stirling Engines

Statistical LInearization 90 4222126

Stochastic ProcessesSteady State Excitation 1180 451 1333 594 2305 2598 1059 .

use Periodic Excitation 751 2024 2615791 2614

Steady-State Response 2824use Periodic Response

StorageSteam Generators 1909

use Boilers - "Storage Tanks lop

Steam Turbines 114 2247 27291011 1012 2203 1055 1066 587 588 1009

Strain GagesSteel use Strain Gauges380 1191 2002 253 1794 375 536 537 958 20591200 1201 813 2034 1375 1836 1557 1188 2379 Strain Gauges2000 1591 1803 2044 2015 2057 1498 1223 12242060 2001 2033 2784 2435 1758

2061 2523 2058 Strain Rate2783 2498 2540

Steering Gear Strains610 1096 1979 1224

1100

AbstractNumnbers: 1-244 245-429 430-678 679-783 784-1032 1033-1326 1327.663 1564-1873 1874-2119 2120.2360 237a2629 2630.2831

Volumoe

Isa: 1 2 3 4 5 6 7 8 9 10 11 12

1-.5

.............................. ,.,....,........., ,........... ... ,..., . ................ :..................,.......... ....

Stress Intensity Factors Submerged Structures1807 510 521 412 163 154 2245 1127 148

872 213 2555 2727 208

Stress Waves 2702 2703 7782700 982 172o 739 2728

1849Substructure Coupling

Strings use Component Mode Synthesis1430 91 2004 2235 2697 2828 191690 1691 Substructuring Methods2470 2471 490 972 1573 1514 555 566 397 2108

2303 1345 1246 1247 2818Strips 2575 1256

2721 2736 0

Structural Components Subsynchronous Vibrationuse Structural Members 2266 1879

Structural Damping Successive Approximation Method374 509 255

Structural Design Successive Transformation Method S1021 181

Structural Elements Supportsuse Structural Members 2260 1002 1744 345 1756 2257 1099

755 2437Structural Members 2015

2111 1582 1763 1805 838 889 2595 "2522 2523 929 ,

Surface RoughnessStructural Modification Techniques 1602 2794 936 499

1252 1253 584 1255 526 1247 1248 1069 19922612 1323 1254 1256 1257 1258 11392772 2613 1324 1317 1858 1249 Surges

2127 1414 585 586 6292557 1556 819

Structural Response Surveys 1-5.-1

911 2385 2536 use Reviews

Structural Synthesis Suspended Structures1514 2473 1106

Structure-Borne Noise Suspension Bridges -

660 2514 515 2380 592 .1930

Suspension Systems (Missiles)Struts 77

1416Suspension Systems (Vehicles)

Studded Tires 80 631 822 1103 75 76 78 14092446 630 841 1642 1643 1485 1408

1070 1981 1872 1983 1558 -Subharmonic Oscillations 1980 2181 1982 2443

2692 176 2407 2180 2441 24422680 2681

Submarines2466 2508

AbstrCt.Numrnb: 1-244 245-429 430-578 579.783 784-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2369 2370-2629 2630-2831

* ... ~Volume 1Is.*.-

Ise: 1 2 3 4 5 a 7 a 9 10 11 12

146

6. f -

. . . . .. - , . . . . . . . . . , . , . . , . - , , ,.?. Z .- ""'. ".. . . . . . . . . . . . . . . . . . ..". . ..-..-. .'.-."""-. . . . . . . . . . ...".."--. .... .--'. ". ' " - '." " , ,"-"-, -. -"-"," , -. - ',"-," "."," ' . '

-'-''- --. - - -.................................-.-.-.-.. '-....-."-..-.- ..." ..-. "'-.."...."."." .."."..".'..'-:..".',. .............................................-..... _ ,_ - _ ,_ _._ - _ - -- . - ,- - - ....-- . .

Swept Sine Wave Excitation Test Facilities1397 780 2591 992 1833 914 995 206 917 239

1760 1094 1525 1526 2087Symposia 1204 1835 2806

use Proceedings 1244 20851524

Synchronous Motors 2324687 2674

Synchronous Vibration Test Fixtures2796 348 use Test Facilities

System Identification Test Instrumentation2791 use Test Equipment and Instrumentation 0

System Identification Techniques Testing Apparatus241 1253 775 416 417 258 use Test Equipment and Instrumentation

.1511 1513 1025 776 1397 21481857 Testing Equipment

use Test Equipment and Instrumentation

Testing Instrumentation S-T- use Test Equipment and Instrumentation

Tailpipes Testing Machines128 use Test Equipment and Instrumentation

Tanker Ships Testing Techniques38 830 871 872 2313 1244 405 186 617 1048 189

1330 1451 1132 883 204 1315 616 1447 1528 269 6Tanks (Containers) 1450 2301 2282 993 1534 1385 1316 547 1678 1429340 513 334 1445 2729 1650 41 2592 1533 1834 615 2316 897 1838 1439

873 2245 2310 991 2593 1984 745 686 1227 2538 592013 1600 2541 915 1946 2597 2628 189

1840 1525 2076 2627 1649Taxiing Effects 2210 1685 2596 1839

231 2325

Telemetry Textile Looms1664 1765 2278

Temperature Effects Textile Spindles * -

331 1832 103 1754 25 696 548 949 use Spindles1441 2432 183 2055 2726 738

2512 2493 2495 868 Theory of Adaptive Identifiers1708 2353

Tennis Rackets Thermal Excitationuse Sports Equipment use Temperature Effects

Test Data Thermal Insulationuse Experimental Data 800

Test Equipment and Instrumentation Thermoelasticity1490 561 2322 953 734 545 546 207 1528 2104

1531 1504 2326Thickness Effects

use Geometric Effects

* Absutc* Numberft: 1-244 24&.429 430479 579-783 784-1032 1033.1326 1327-1563 1564-I1873 1874-2119 2120-2380 2370-2620 2630-2831 -

* Vokinm 16

1gw: 1 2 3 4 6 6 7 8 9 10 11 12

147

AL.-.. .%......."

...............................................................................................................................................................

.................................................................

iS

Tilt Pad Bearings Torsional Vibrations583 2218 1570 91 432 3 1565 1006 2008 649

2688 2080 1431 642 73 1875 1876 13391721 1352 113 1995 1419 -

Time Delay Spectrometry 1901 1702 1683 2575 1479 0400 2003 2009

2463 2599Time-Dependent Excitation 26932720 1443 648 329

2403 728 1299 Torsional Waves1212

Time-Dependent Parameters221 94 2305 Towed Bodies 0

2675 use Towed Systems

Time Domain Method Towed Systems440 21 282 393 1264 695 1306 1227 78 2819 2663 269520 201 772 1253 1654 1085 1546 388840 231 2333 2576 2618 Towers1370 1311 2666 20 21 262 273 1364 2645 2387 18 191520 2181 260 1591 272 1914 2407 598 02370 2791 2160 812 2504 11282620

Tracked VehiclesTime Series Analysis Method 1981 2163 1891290 1281

Traction DrivesTiming Devices 2441 24422118 0

TractorsTimoshenko Theory 610 611 612 1353 2542030 633 1704 658 2050 1911

1714 1708 21802704 2680

Tire Characteristics Traffic Induced Vibrations823 1984 528

Tires Traffic Noise632 633 1984 142 483 1174 1635 1377 25281602 2193 462 623 1774

1172 1173Tools 1243

298 - "Trailers AR

Torque 1382 254 1377671 2082 784 1877 1604

2414Torsional Excitation

687 329 Trains1549 use Railroad Trains

Torsional Response Transducers2350 2682 523 324 15 2226 507 1589 401 2073 1234 1235 1516 1517 1518 2799

1353 2384 785 581 1845 2586 2587 2588

Transfer Functions1573 2278 249

2319

* AbstreaNumbers: 1-244 24 420 430678 579-783 784-1032 10331326 1327-1563 1564-1873 1974-2119 21202369 2370-2629 2630-- -

Volume 10

Isue: 1 2 3 4 6 6 7 8 9 10 11 12

148

%S: ~~~~~...* .~.. .. +-.-°,-.-. ........-.,.........: . ,+... . ..- ,-+,+--+.....-, ......... .. . .,.. ... .-..-.,..,..-..:.,:, .-. ,. -..-..-.. .-,.-, -.. .- .., ., -,-,.. .- .,-., .+-.- . ., ..-.. ,.,,°-,,- ... +.• :- i ::" :- L' : . -.:': -' .* Y '.- -

Transfer Matrix Method Trucks1731 1372 1285 1738 879 831 612 293 294 1385 1606 1377 1308

156S 1472 613 13841942 1103 1604

Transformation Techniques 1643181 1287

TrussesTransient Analysis 323 6

1735 10162525 Tube Arrays

2510 2401 2262 883 1434 116 1827 2739Transient Excitation 2704 2016 2017

1232 1984 936 2167Tubes

Transient Response 1750 341 882 303 304 305 86 87 88 1492720 231 233 2304 725 1026 1337 368 319 2740 401 1422 883 514 885 306 1747 1748 1749

241 433 2724 1567 728 1549 1751 1752 953 1424 1745 2027 24782611 753 2657 2818 1889 963 2515 2237 2738

1023 2523 273713231383 Tuned Dampers2623 1486 1247122773

TuningTranslational Response 410 491 492 3 2214 1415 1336 1108 1139

1445 2202 333 2205 2206

Transmissibility Tunnels

use Transmissivity 1593 23942393 ,

Transmission Lines .1692 1124 2236 18 19 Turbine Blades

2476 1660 81 2362 494 2205 2196 1657 1658 16592200 2201 2452 2214 2455 2206 2457 2208 2449

Transportation 2210 2211 2454 2456use Transportation Vehicles 2451

Transportation Effects Turbine Components806 2439 TOIZ 2155 2156 .

Transportation Systems Turbine Enginesuse Transportation Vehicles 2272

Transportation Vehicles Turbines2473 76 431 2 5 1277 2579

2341 2142 1055 -* -

Transverse Shear Deformation Effects 2 10

870 1701 322 653 1734 2705 96 507 318 99 Turbofan Engines1730 2731 652 673 2484 866 328 2189 1860 2632 1393 2634 128

1723 508 2509 2743858

TurbofansTrees (Plants) 2743

1457Turbogenerators

Triangular Bodies 1010 2122 2123 2129101 2140 2132

2150 2152Truck Tires 2332

633 2342

loAbstactNumbers: 1-244 245-429 430-6 579-783 784-1032 1033-1326 1327-1563 1564-1073 1674-2119 21202366 23702629 2630I2831

Volume 16

Issu: 1 2 3 4 5 6 7 a 9 10 ,l 12

0

T., '49

...................... .......... -..... ....... .,...... ........ .. ..... ,...-.............................................-.................,.,..

Turbojet Engines Underride Guards2558 use Guard Rails

Turbomachinery Underwater Explosions1420 1662 2133 4 1035 1336 7 248 1879 2543 164 165 2466 159

2292 2633 784 317 2138 2139 1692344

Turbomachi nery Blades 120 2511 342 2014 987 119*use Rotor Blades (Turbomachinery)

Underwater SoundTurbulence 150 521 1163 1164 145 146 147 708 709100 2631 352 2353 5 1076 847 1178 899 710 711 1463 1464 705 706 707 1168 1169900 2682 2753 2765 2766 1170 971 2364 895 896 1777 2078 4

2752 1820 2534 1465 1466 2367 22682764 1775 1776 2728

Two-Degree of Freedom Systems 2756725

Underwater StructuresTwo Microphone Technique 2250 511 872 163 1104 855 856 27 488 10291520 751 903 514 2410 981 2663 987 27192570 1831 2583 2024 .

2574 Unified Balancing Approach2338

Universal Joints-U- 2125

Ultrasonic Techniques Urban Noise980 993 1685 876 877 988 989 141 2528990 2603 2417 1518 18391840 _________________________

Ultrasonic Tests _..__use Ultrasonic Techniques

ValvesUltrasonic Vibration 311 315 316 1427 1428 89

1686 2587 2588 2079 421 505 1426 24692496 1425

Unbalanced Mass Response430 1 2 2463 1327 1328 1329 Vanes2130 581 2218 2219 1662 2635 2377

2131Variable Amplitude Excitation

Undamped Structures 87664 368T

2568 Variable Cross Section2190 331 672 104 95 866 1707 1718 109

Underground Explosions 2701 1125 1666 2707 2018

6004 9725 1908 2928

- . 610 2210 99 Variable Material Properties

2040 2480 723

Underground Structures Variational Methods -450 441 442 443 444 445 446 447 448 449 1740 411 1284 216 4071450 921 2392 1593 924 865 796 1447 1908 1909 226

2393 1594 2475 19072394

- •

AbstrascNumbers: 1.244 245-429 430-478 579-783 764.1032 1033-1328 1327-1563 15641673 1674-2119 2120230 22702628 2632831

Voe"M. 16

Iu: 1 2 3 4 5 7 S 9 14 11 12

ISO

990.... .3..... ... ... ... 9...,...,......'.

... .. .. ... .. .. .... .. .. . .. .. . .. .. *--.--..-...-?-- -- .- l***4................. e* .* UltraonicTechi.ue

Velocity Vibration GenerationK2536 2638 2469

Ventilation Vibration Isolation353 70 1972 1973 2464 835 .

2182Vessels (Ships)

use Ships Vibration Isolators533 2187 298

Vibrating Foundations 26781905 1057 678 Vibration Measurement

2071 482 1664 405 746 477 48 579 .Vibration Absorbers 2080 2321 1522 905 1346 478

use Vibration Absorption (Equipment) 1892 1225 2576 5282716

Vibration Absorption (Equipment)73 74 1755 489 Vibration Meters

2071Vibration Analysis2450 101 282 223 94 635 576 397 198 199 Vibration Monitoring2510 671 772 843 104 1985 726 407 508 779 747 02580 721 1682 1723 1284 2405 2106 647 578 2679

871 2222 1853 2554 2505 2166 677 748 2769 Vibrition Prediction1921 2712 2133 2714 2725 2576 747 1338 2051 1034 1172121 2153 1987 1478 19442471 2213 2137 2238

2487 2718 Vibration Probes2577 2808 2584 -26972707 Vibration Recording

1652Vibration Control290 1101 482 373 244 55 1646 1087 18 1349 Vibration Reduction610 1441 722 1043 2374 135 1976 1487 178 1579 use Vibration Control

2430 1911 2372 1343 845 2136 1977 1618 21692051 2493 1105 2236 2277 1898 2429 Vibration Resonance2691 1455 2397 2398 use Natural Frequencies

2215Vibration Response

Vibration Dampers 940 111 1002 103 325 786 527 2358 4592558 1330 941 1575 1786 817

1710 1021 2317Vibration Damping470 292 183 534 1375 1487 1069 Vibration Signatures .

2579 -_

Vibration Detectors2798 2799 Vibration Source Identification

1331 2143Vibration Effects

435 426 Vibration Spectrause Vibration Response Spectra

Vibration Excitation830 902 293 294 68 69 Vibration Tests

2762 1473 484 458 800 2322 23 1524 175 206 17 438 491633 1660 2792 1833 1904 1525 127 2428 189

2323 2415 267 2438 239

Vibration Frequencies 1147 559870 1719 2087 1479

1609

*AbstiacNumber: 1-244 246-429 430478 579-783 764-1032 1033.1326 1327-1563 15641873 1874-2119 2120.2366 2370-2620 2630-2131

Isue: 1 2 3 4 5 6 7 6 9 t0 11 12 -. -

151

• .a-. o.

..................... ..

Vibration Transfer Viscous Damping2193 1940 181 1482 73 1264 2185 1046 1187 368

791 1502 2773 2557 1978Vibration Tuning 2388

2169 2438Vortex-Induced Excitation

Vibrators (Machinery) 2488 0252

Vortex-Induced VibrationVibratory Conveyors 2511 1433 27

use Vibrators (Machinery) and 127Materials Handling Equipment

Vortex SheddingVibratory Stress Relief 2631 1773 1396 2488

783 2423 2638

Vibratory Stresses Vulnerability1653 160 42 243 436 39

2386 2,139* - Vibratory Techniques

1061 428 4292651 2118

Vibratory Tools2119 Walls

890 1761 134 45 2746 2247 518 929Vibro-Impact Systems 2020 1771 1762 2264 2265 2019

2485 2520 2021 2585 25192521

Vibromotors 0685 Warheads

2541Vibrothermographic Techniques1540 402 Warping

2486 507Viscoelastic Core-Containing Media

1744 2006 Water -2427 _

Viscoelastic Damping Water Hammer372 1183 1578 1753

1142 2293Wave Absorption

Viscoelastic Foundations 704 1647 738651 652 2154 657 1104

Viscoelastic Media Wave Analyzers S2781 969 1820 195

2299

Wave AttenuationViscoelastic Properties 1451 683 886 737 739320 2561 1812 1813 394 325 2437 1439 703 1486 1457

2354 1709 1453 20262444

Wave Diffraction SViscoplastic Properties 1160 1461 1212 2814 965 1166 697 1158 389650 2750 1216 1777

2066Viscosity Effects

339 Wave Dispersion740

AbstracNumbers: 1-244 245-429 430.78 679-783 764-1032 1033-1326 1327-1563 1564-1873 1874-2119 2120-2360 2370-2629 2630-2831

Volume 16

Issue: 1 2 3 4 5 6 7 6 9 to 11 12

152

~~~~...........'............ .. .. . .... .........................-...-..... ....... ........... .. -%...-

Wave Energy Wave Transmission1102 799 1361 504 1145 708 1739

2301 744Wave Equation 1454

901 2004Weapons Effects

Wave Forces 2041 2112 923 2044 915 916 9172410 412 414 1615 816 37 28 119 2536

814 1915 1147 2168 2691914 2395 2387 2408 799 Weapons Systems2014 2488 2042 2043

Wave Generation Wear .. .902 1463 940 2681 942 2683 84 435 248

2533 1998

Waveguide Analysis Wedges1640 2298 2269 1166

Wave Makers Weighing Systems1211 2317 .

Wave Number Welded Joints : .use Frequency 380 2001 2002 1423 644 1685 86 87 1208 1999

2000 2603 2095 516 877 2229Wave Propagation 876 2497350 691 692 693 154 105 346 707 1168 149700 701 1252 963 394 705 1696 737 1748 699 Welding710 901 1772 1153 554 1215 1816 1557 1768 739 10051030 1211 2302 1213 714 1465 2516 1727 2518 969 .61210 1451 2532 2263 964 1815 1747 2648 1169 Wheelchairs1470 1471 2543 1154 1825 1817 2748 1769 16001720 2281 2723 1214 2005 2007 2758 18491770 2561 1464 2515 2267 2269 Wheels2330 2701 1704 2477 2279 1410 1411 632 634 1985 2447 2189 ".-2700 1814 2517 2749 1650 1651

2534 2537 2789 2190 -_-_,_-"_2744 2757 2810 0

Wave Radiation Whipping Phenomena690 2742 1703 1145 1157 1148 869 2508.. ..-

2755 2588 Whirling2371 1675 1676 7 1328 2709

Wave Reflection 2685 2686 2128971 462 1413 144 1145 1768 0 _•

1771 1593 504 2275 Wiegand Effect Sensors704 2798 2799

1164Wind-Induced Excitation

Wave Scattering 50 1031 262 943 574 15 256 257 788 599390 391 392 393 174 415 696 967 188 1159 1051 792 1163 1054 495 1076 1128 2009520 521 742 553 354 695 966 2737 388 2381 1392 2383 1364 2645 2556 1358 2359970 741 1162 743 554 1165 968 2591 1692 2643 1784 1628 01170 1161 2733 694 1715 1818 1912

2753 704 1838 20222364 2298 2382

2728 25222778 25522788

-- La

Numle: 1-244 246429 430478 579 7 3 784-1032 1033-1326 1327-1563 1564-1873 1674-2119 2120-2369 2370-2629 26 30-231

VOW*n 16

wIm : 1 2 3 4 5 6 7 a 9 10 11 12

153

% ,.., , .~~~~~~~~. . . . . . . ... ........ o. . .. ,-.-.. . .. o. ....... ",-,, , ."o , ,..

-71- C

Wind Tunnel Testing280 262 403 474 85 1617 48 492280 1342 755 1358 569

2532

Wind Tunnel Testsuse Wind Tunnel Testing

Wind Tunnels2591

Wind Turbines1572 5 1537

Wi ndows2538

Wing Stores2671 2422 1624 616

Winkler Foundations1592 .

X-Ray Techniques2092

-y-S

* ~Yarns .

1765

Z-Transfori Method1310

AbstractNumbers: 1-244 245.429 430.6786579-73 7641032 1033-1326 1327-1563 1564-1873 18742119 2120-2369 237&.2629 263.23 * I-*

Voiume 1 2 j q 5 5I ui

lowu: -2 3 4 6 1 11

154

% .. ~.. . ***% .... % % X . % ' . ~ ** .*.

CALENDOAR.7.

*.JANUARY 1985 22-26 International Symposium on Acoustical Imaging,

2 2224 nnul Rliailiy an Mantanablit Sypo-The Hague, The Netherlands (J. Ridder, P.O. Box222 AnulRlaiiyadMitiaiiySmo 5046,.2600 GA Delft. The Netherlands) -

* . sium [I ES) Philadelphia. PA (IES Has.)

28-3 3r Inerntioal odalAnaysi Cofernce 29-May 3 31st Annual Technical Meeting and Equipment* 2-31 3rdIntrnaionl MdalAnaysi CofernceExposition lIES] Las Vegas, NV (IES Hqs.)

[ Union College] Orlando, FL (Mfs. Roe D'Ame/bo,Union Co/leg.. 1W/a Home, I Union Ave., Schen-ecta dy. NY 12308 - (518) 370-6288) MAY 1985

29-Feb 1 International Conference on Nondestructive Evalu- 6-8 4th International Symposium on Hand-Arm Vi-ation in Nuclear Industry. Grenoble, France bration [Finnish Inst. of Occupational Health](J.P. Launay, COFREND, 32 Boulevard de Ic Helsinki. Finland (I. Plykko, Inst. of OccupationalChapelle, 75880 Paris Cledex 18. France) Health, Laajaniityntie 1, 01620, Vanta 62. Fin-

land)

6-9 American Society of Lubrication Engineers, 40th- .FEBRUARY 1985 Annual Meeting [ASLEI Las Vegas, NV (ASLE

Hqs./25-Marl1 International Congress and Exposition [SAE]

Detroit, Ml (SAE 140 22-24 Machinery Vibration Monitoring and Analysis -

Meeting [Vibration Institute] New Orleans. LA .

(Dr. Ronald L. Eshleman, Director. The Vibration- .-

MAC 95Institute, 101 W 55th St., Suite 206, Clarendon.MARCH1985Hills, IL 60514 - (312) 654-2254)

18-21 30th International Gas Turbine Conference andExhibit [ASME] Houston. TX (Intl. Gas Turbine JUE18Ctr.. Gas Turbine Div., ASME, 4250 PerimeterPark South, Suita 108. Atlanta, GA 30341(4 04) 3-5 NOISE-CON 85 [ Institute of Noise Control Engi- .*

451-1905) neering and Ohio State University] Columbus. OH(NOISE-CON 85, Dept. of Mech. Engrg., Ohio *

State Univ., 206 W f8th Ave.. Columbus, OH--

APRIL 1985 4327,9- (614) 422-19 10)

1-3 2nd International Symposium on Aeroelasticity 24-26 2nd National Conference and Workshop on Tailor-

and Structural Dynamics [Deutsche Gesellschaft ing Environmental Standards to Control Contractf~r Luft- und Raumfahrt e.V.I Technical Univer-Reurmns[S]Lsug.V (ESq)sity of Aachen, Germany (Symposium OrganizingSecretariat. Deutsche Gesellschaft f~r Luft- und JUY18Raumfahrt, Godesberger Allee, 70, D-5300 Bonn 2, JUY18W Germany) 2-4 Ultrasonics International '85, Kings College, Lon- .

don (Z Novak, Ultrasonics, P.. Box 63, Wst-8-12 Acoustical Society of America, Spring Meeting bury House, Bury St.. Guildford, Surrey GU2 58,

[ASA) Austin. TX (ASA Has.) England)

15-17 Institute of Acoustics Spring Conference [IbA] 11-13 International Compressor Engineering Conference,York University, UK (IOA, 25 CMambers St., Lafayette, IN (Purdue University, W Lafayette,Edinburgh EHI1 HU, UK) IN - (317) 494-2132)

15-19 2nd Symp. on Interaction of Non-Nuclear Muni-tions with Structures [Tyndall AFB. FL; Eglin AU ST 98AFB, F L; Kirtland AFB, NM] Panama City Beach.FL (As. LC GClouston, Registrar, P.O. Box 1918, 5-10 SAE West Coast International Meeting [SAE)Eglin AFB, FL 32542 - (904) 882-5614) Portland, OR (SAE Hqs.)

-9

%

CALENDAR ACRONYM DEFINITIONS AND ADDRESSES OF SOCIETY HEADOUARTERS

AHS: American Helicopter Society IMechE: Institution of Mechanical Engineers1325 18 St. N.W. 1 Birdcage Walk, Westminster,Washington, D.C. 20036 London SWI, UK

AIAA: American Institute of Aeronautics and IFToMM: International Federation for Theory ofAstronautics Machines and Mechanisms •1633 Broadway US. Council for TMMNew York, NY 10019 c/o Univ, Mass., Dept. ME

Amherst, MA 01002

ASA: Acoustical Society of America335 E. 45th St. INCE: Institute of Noise Control EngineeringNew York, NY 10017 P.O. Box 3206, Arlington Branch .

Poughkeepsie, NY 12603

ASCE: American Society of Civil EngineersUnited Engineering Center ISA: Instrument Society of America345 E. 47th St. 67 Alexander Dr.New York, NY 10017 Research Triangle Park, NC 27709

*. ASLE: American Society of Lubrication Engineers SAE: Society of Automotive Engineers -" -

838 Busse Highway 400 Commonwealth Dr.Park Ridge, I L 60068 Warrendale, PA 15096

ASME: American Society of Mechanical Engineers SEE: Society of Environmental EngineersUnited Engineering Center Owles Hall, Buntingford. Hertz.345 E. 47th St. SG9 9PL, EnglandNew York, NY 10017

SESA: Society for Experimental Stress Analysis

ASTM: American Society for Testing and Materials 14 Fairfield Dr.1916 Race St. Brookfield Center, CT 06805 -

Philadelphia, PA 19103 .

SNAME: Society of Naval Architects and Marine

ICF: International Congress on Fracture Engineers

Tohoku University 74 Trinity Pl.Sendai, Japan New York, NY 10006

IEEE: Institute of Electrical and Electronics Engineers SPE: Society of Petroleum EngineersUnited Engineering Center 6200 N. Central Expressway345 E. 47th St. Dallas, TX 75206New York, NY 10017

SVIC: Shock and Vibration Information Center

IES: Institute of Environmental Sciences Navel Research Laboratory _.940 E. Northwest Highway Code 5804Mt. Propect, IL 60056 Washington, D.C. 20375

U ,S. GOVERNJINT PRINTING OFFICE: 19S4-461-639:011

156

% .

,,. . , .. % •.%

PUBLICATION POLICY

Unsolicited articles are accepted for publication in * abbreviated title of journal in which article

the Shock and Vibration Digest. Feature articles was published (see Periodicals Scanned list 0in January, June, and December issues)

should be tutorials and/or reviews of areas of interest i Joue, iune, and esor iur-0 volume, issue number. and pages for jour-

to shock and vibration engineers. Literature review nals; publisher for booksarticles should provide a subjective critique/summary 4 year of publication in parenthesesof papers, patents, proceedings and reports of apertinent topic in the shock and vibration field. A A sample reference list is given below.

literature review should stress important recent Stechnology. Only pertinent literature should be 1. Platzer, M.F., "Transonic Blade Flutter - A

cited Illustrations are encouraged. Detailed mathe- Survey, Shock Vib. Dig..975(7) pp 97-106

matical derivations are discouraged; rather, simple (July 1975).

formulas representing results should be used. When 2. Bisplinghoff, R.L., Ashley, H., and Half-complex formulas cannot be avoided, a functional man, R.L., Aeroelasticity, Addison-Wesley

form should be used so that readers will understand (1955).the interaction between parameters and variables. 3. Jones, W.P., (Ed.), "Manual on Aeroelas-

ticity," Part II, Aerodynamic Aspects, Advi-Manuscripts must be typed (double-spaced) and sory Group Aeronaut. Res. Dev. (1962).figures attached. It is strongly recommended that linenigures be rendered in ink or heavy pencil and neatly 4. Lin, C.C., Reissner, E., and Tsien, H., "On

labeled. Photographs must be unscreened glossy Two-Dimensional Nonsteady Motion of a 5Slender Body in a Compressible Fluid," J.

black and white prints. The format for references Math. Phys., 27 (3), pp 220-231 (1948).shown in DIGEST articles is to be followed.

5. Landahl, M., Unsteady Transonic Flow,Manuscripts must begin with a brief abstract, or Pergamon Press (1961).summary. Only material referred to in the text should S. Miles, J.W., "The Compressible Flow Pastbe included in the list of References at the end of the an Oscillating Airfoil in a Wind Tunnel,"article. References should be cited in text by consecu- J. Aeronaut. Sci., 23 (7), pp 671-678tive numbers in brackets, as in the example below. (1956).

7. Lane, F., "Supersonic Flow Past an Oscil-Unfortunately, such information is often un- lating Cascade with Supersonic Leadingreliable, particularly statistical data pertinent Edge Locus," J. Aeronaut. Sci., 24 (11.to a reliability assessment, as has been previous- pp 65-66 (1957). 0ly noted [11.

Articles for the DIGEST will be reviewed for tech-Critical and certain related excitations were nical content and edited for style and format. Beforefirst applied to the problem of assessing systemreliability almost a decade ago [2]. Since then, an article is submitted, the topic area should be

the variations that have been developed and the cleared with the editors of the DIGEST. Literaturepractical applications that have been explored review topics are assigned on a first come basis.[3.71 indicate that... Topics should be narrow and well-defined. Articles

should be 3000 to 4000 words in length. For addi-The format and style for the list of References at tional information on topics and editorial policies,the end of the article are as follows: please contact:

0 each citation number as it appears in text Milda Z. Tamulionis(not in alphabetical order) Research Editor

0 last name of author/editor followed by Vibration Instituteinitials or first name

* titles of articles within quotations, titles of 101 W. 55th Street, Suite 206books underlined Clarendon Hills, Illinois 60514