patran 2007r1 release guide

Patran® 2007 r1

Release Guide

CorporateMSC.Software Corporation2 MacArthur PlaceSanta Ana, CA 92707 USATelephone: (800) 345-2078Fax: (714) 784-4056

EuropeMSC.Software GmbHAm Moosfeld 1381829 Munich, GermanyTelephone: (49) (89) 43 19 87 0Fax: (49) (89) 43 61 71 6

Asia PacificMSC.Software Japan Ltd.Shinjuku First West 8F23-7 Nishi Shinjuku1-Chome, Shinjuku-KuTokyo 160-0023, JAPANTelephone: (81) (3)-6911-1200Fax: (81) (3)-6911-1201

Worldwide Webwww.mscsoftware.com

Disclaimer

This documentation, as well as the software described in it, is furnished under license and may be used only in accordance with the termsof such license.

MSC.Software Corporation reserves the right to make changes in specifications and other information contained in this document withoutprior notice.

The concepts, methods, and examples presented in this text are for illustrative and educational purposes only, and are not intended to beexhaustive or to apply to any particular engineering problem or design. MSC.Software Corporation assumes no liability or responsibilityto any person or company for direct or indirect damages resulting from the use of any information contained herein.

User Documentation: Copyright 2007 MSC.Software Corporation. Printed in U.S.A. All Rights Reserved.

This notice shall be marked on any reproduction of this documentation, in whole or in part. Any reproduction or distribution of thisdocument, in whole or in part, without the prior written consent of MSC.Software Corporation is prohibited.

The software described herein may contain certain third-party software that is protected by copyright and licensed from MSC.Softwaresuppliers. Contains IBM XL Fortran for AIX V8.1, Runtime Modules, (c) Copyright IBM Corporation 1990-2002, All Rights Reserved.

MSC, MSC/, Dytran, MSC Fatigue, Marc, Patran, MD Patran, and Laminate Modeler are trademarks or registered trademarks ofMSC.Software Corporation in the United States and/or other countries.

NASTRAN is a registered trademark of NASA. PAM-CRASH is a trademark or registered trademark of ESI Group. SAMCEF is atrademark or registered trademark of Samtech SA. LS-DYNA is a trademark or registered trademark of Livermore Software TechnologyCorporation. ANSYS is a registered trademark of SAS IP, Inc., a wholly owned subsidiary of ANSYS Inc. ABAQUS is a registeredtrademark of ABAQUS Inc. ACIS is a registered trademark of Spatial Technology, Inc. CATIA is a registered trademark of DassaultSystemes, SA. EUCLID is a registered trademark of Matra Datavision Corporation. FLEXlm is a registered trademark of MacrovisionCorporation. HPGL is a trademark of Hewlett Packard. PostScript is a registered trademark of Adobe Systems, Inc. PTC, CADDS andPro/ENGINEER are trademarks or registered trademarks of Parametric Technology Corporation or its subsidiaries in the United Statesand/or other countries.Unigraphics, Parasolid and I-DEAS are registered trademarks of UGS Corp. or its subsidiaries in the United Statesand/or other countries. All other brand names, product names or trademarks belong to their respective owners.

P3*V2007R1*Z*Z*Z*DC-REL-PDF

C O N T E N T SPatran Release Guide

Patran Release Guide,

1Patran 2007 r1at a Glance

� Key Highlights, 2❑ General, 2

- Licensing, 2- Isosurface Support, 2- Interactive Viewport, 2- Spectrums and Ranges, 2- Demonstration Problems, 2- Improved Memory Management, 2

❑ CAD Access, 3- InterOp R16 SP8, 3- Parasolid 18, 3- UG NX 4.0, 3

❑ MSC Nastran Preference, 3- Optimization (SOL 200) Support, 3- Nonlinear Analysis (SOLs 400, 600, & 700), 4- Dynamics, 4- Miscellaneous, 5

❑ Marc Preference, 5- New Physics Types, 5- Contact Improvements, 6- Marc Input File Import, 6- POST Revision 13, 6- Bolt Modeling, 6

❑ Third Party Support, 6- ABAQUS, 6- ANSYS, 7- SAMCEF, 7

� Supported OS/Hardware Platforms, 8

� Supported CAD Access , 10

� Analysis Preferences Tested, 12

� Technical Support, 13

2GeneralEnhancements

� Isosurface Support, 16

� Interactive Viewport, 17❑ Middle Mouse Button Mapping, 17❑ Right Mouse Button Interaction, 18❑ Right Mouse Button on Tree Widget Entities, 18

� Spectrums and Ranges, 19

� Demonstration Problems, 20

3MSC NastranPreference

� Optimization (SOL 200) Support, 24❑ Default Design Study, 24❑ Additional Analysis Types, 25❑ Topology Optimization, 27

� Nonlinear Analysis (SOLs 400, 600, & 700), 29❑ Implicit Nonlinear (SOL 400), 29❑ Implicit Nonlinear (SOL 600) - Heat Transfer Support, 34❑ Explicit Nonlinear (SOL 700), 37

� Dynamic Analysis, 39❑ Superelement Support, 39❑ Exterior Acoustics, 41❑ Phase Angles & Frequency Response Analysis, 42❑ Random Analysis, 43

� Miscellaneous, 45❑ Contact in Linear Solutions, 45❑ Closed Cavities for Radiation Analysis, 46

4Marc Preference � New Physics Types, 48

❑ Electrostatics, 49❑ Joule Heating, 49❑ Thermal & Structural Support in Coupled Analysis, 49

� Contact Improvements, 50❑ Analytical Contact Definitions, 50❑ Contact Area and Exclusion Definitions, 51❑ Rigid Contact Growth Factors, 52❑ Miscellaneous, 52

� Marc Input File Import, 53

� POST Revision 13, 54

� Bolt Modeling, 55❑ Geometric based, 56❑ Vector based, 56❑ Element based, 56

INDEX � Patran Release Guide, 57

MSC/PATRAN User’s Guide, Part 4: Finite Element Modeling

Preface

� List of MSC.Patran Books

� Technical Support

� Internet Resources

iv

List of MSC.Patran BooksBelow is a list of some of the MSC.Nastran documents. You may order any of thesedocuments from the MSC.Software BooksMart site at www.engineering-e.com.

Installation and Release Guides

❏ Installation and Operations Guide

❏ Release Guide

User’s Guides and Reference Manuals

❏ MSC.Patran User’s Guide

❏ MSC.Patran Reference Manual

❏ MSC.Patran Analysis Manager

❏ MSC.Patran Materials

❏ MSC.Patran Thermal

Preference Guides

❏ ABAQUS

❏ ANSYS

❏ LS-DYNA

❏ MSC.Marc

❏ MSC.Dytran

❏ MSC.Nastran

❏ PAMCRASH

❏ SAMCEF

❏ PATRAN 2 Neutral File

vPreface

Technical SupportFor help with installing or using an MSC.Software product, contact your localtechnical support services. Our technical support provides the following services:

• Resolution of installation problems• Advice on specific analysis capabilities• Advice on modeling techniques• Resolution of specific analysis problems (e.g., fatal messages)• Verification of code error.

If you have concerns about an analysis, we suggest that you contact us at an earlystage.

You can reach technical support services on the web, by telephone, or e-mail:

Web Go to the MSC.Software website at www.mscsoftware.com, and click on Support.Here, you can find a wide variety of support resources including applicationexamples, technical application notes, available training courses, and documentationupdates at the MSC.Software Training, Technical Support, and Documentation webpage.

PhoneandFax

United StatesTelephone: (800) 732-7284Fax: (714) 784-4343

Frimley, CamberleySurrey, United KingdomTelephone: (44) (1276) 67 10 00Fax: (44) (1276) 69 11 11

Munich, GermanyTelephone: (49) (89) 43 19 87 0Fax: (49) (89) 43 61 71 6

Tokyo, JapanTelephone: (81) (3) 3505 02 66Fax: (81) (3) 3505 09 14

Rome, ItalyTelephone: (390) (6) 5 91 64 50Fax: (390) (6) 5 91 25 05

Paris, FranceTelephone: (33) (1) 69 36 69 36Fax: (33) (1) 69 36 45 17

Moscow, RussiaTelephone: (7) (095) 236 6177Fax: (7) (095) 236 9762

Gouda, The NetherlandsTelephone: (31) (18) 2543700Fax: (31) (18) 2543707

Madrid, SpainTelephone: (34) (91) 5560919Fax: (34) (91) 5567280

vi

Email Send a detailed description of the problem to the email address below thatcorresponds to the product you are using. You should receive an acknowledgementthat your message was received, followed by an email from one of our TechnicalSupport Engineers.

TrainingThe MSC Institute of Technology is the world's largest global supplier ofCAD/CAM/CAE/PDM training products and services for the product design,analysis and manufacturing market. We offer over 100 courses through a globalnetwork of education centers. The Institute is uniquely positioned to optimize yourinvestment in design and simulation software tools.

Our industry experienced expert staff is available to customize our course offerings tomeet your unique training requirements. For the most effective training, The Institutealso offers many of our courses at our customer's facilities.

The MSC Institute of Technology is located at:

2 MacArthur PlaceSanta Ana, CA 92707Phone: (800) 732-7211Fax: (714) 784-4028

The Institute maintains state-of-the-art classroom facilities and individual computergraphics laboratories at training centers throughout the world. All of our coursesemphasize hands-on computer laboratory work to facility skills development.

We specialize in customized training based on our evaluation of your design andsimulation processes, which yields courses that are geared to your business.

In addition to traditional instructor-led classes, we also offer video and DVD courses,interactive multimedia training, web-based training, and a specialized instructor'sprogram.

MSC.Patran SupportMSC.Nastran SupportMSC.Nastran for Windows SupportMSC.visualNastran Desktop 2D SupportMSC.visualNastran Desktop 4D SupportMSC.Abaqus SupportMSC.Dytran SupportMSC.Fatigue SupportMSC.Interactive Physics SupportMSC.Marc SupportMSC.Mvision SupportMSC.SuperForge SupportMSC Institute Course Information

[email protected]@[email protected]@mscsoftware.comvndesktop.support@mscsoftware.commscabaqus.support@mscsoftware.commscdytran.support@[email protected]@[email protected]@mscsoftware.commscsuperforge.support@[email protected]

viiPreface

Course Information and Registration. For detailed course descriptions, scheduleinformation, and registration call the Training Specialist at (800) 732-7211 or visitwww.mscsoftware.com.

viii

Internet Resources

MSC.Software (www.mscsoftware.com)

MSC.Software corporate site with information on the latest events, products andservices for the CAD/CAE/CAM marketplace.

Simulation Center (simulate.engineering-e.com)

Simulate Online. The Simulation Center provides all your simulation, FEA, and otherengineering tools over the Internet.

Engineering-e.com (www.engineering-e.com)

Engineering-e.com is the first virtual marketplace where clients can find engineeringexpertise, and engineers can find the goods and services they need to do their job

CATIASOURCE (plm.mscsoftware.com)

Your SOURCE for Total Product Lifecycle Management Solutions.

Process Architecture Lab (PAL) (pal.mscsoftware.com/services/pal)

PAL is a virtual product development environment that enables PAL participants andcustomers to define, validate, and demonstrate advanced tools, processes, and e-business solutions.

MD Patran Release Guide

CHAPTER

1 Patran 2007 r1at a Glance

� Key Highlights

� Supported OS/Hardware Platforms

� Supported CAD Access

� Analysis Preferences Tested

� Technical Support

2

1.1 Key Highlights

GeneralThe following general enhancements are available in this release:

Licensing

A FLEXlm 10.8 license server is required for all platforms except HP Itanium. If yourinstallation points to an older license server, you will have to install the new FLEXlmlicense server. HP Itanium supports only FLEXlm 9.2.

Isosurface Support

Isosurface plots have been added to the Results application. See Isosurface Support(p. 16).

Interactive Viewport

A number of productivity efficiency enhancements have been made to the graphicsinteractions. The middle and right mouse buttons can be used for a number ofpurposes now. See Interactive Viewport (p. 17).

Spectrums and Ranges

Spectrums and ranges of results plots can handle up to 256 colors now. SeeSpectrums and Ranges (p. 19).

Demonstration Problems

Simple demonstration problems have been included with this version of Patran toillustrate new and existing features. Each new functionality that lends itself to ademonstration is indicated for the Marc and MSC Nastran Preferences in the chaptersthat follow. See Demonstration Problems (p. 20).

Improved Memory Management

Patran is a 32 bit application that is certified to run on supported 64 bit architecturemachines. Memory management changes have improved the performance androbustness on all platforms as a whole, but specifically on Windows 32 bit machineswhen you turn on the 3 gigabyte switch. See Setting the Startup Directory (p. 11) inthe Patran Installation and Operations Guide.

3CHAPTER 1Patran 2007 r1 at a Glance

CAD Access

InterOp R16 SP8

The Spatial InterOp, Parasolid based translators have been updated to the R16 SP8revision. This gives CAD access support based on the table in Supported CADAccess (p. 10). MSC makes periodic updates to CAD access and are available throughdownload patches at:

http://www.mscsoftware.com/support/software_updates/#patran

Parasolid 18

Parasolid import now supports up to version 18. However the Patran Parasolid kernelis still based on Parasolid 17.

UG NX 4.0

Unigraphics import has been updated to UG NX 4.0 and features created by UG NX3.0 and 4.0 are now editable.

MSC Nastran PreferenceMajor strides have been taken to support MSC Nastran in the following areas:

Optimization (SOL 200) Support

Support for SOL 200 has been improved in four different areas:

Default Design Study

A default design study now exists and all design constraints, objectives, and variablesautomatically become part of this default design study if no other design study isdefined. See Default Design Study (p. 24).

Multi-disciplinary Optimization

The following disciplines have been added to optimization above and beyond alreadysupported linear statics and normal modes. See Additional Analysis Types (p. 25).

• Buckling Analysis

• Frequency Response (Direct & Modal)

• Transient Dynamic Analysis

Topology Optimization

For topology optimization in SOL 200 enhancements see Topology Optimization(p. 27).

4

Nonlinear Analysis (SOLs 400, 600, & 700)1

Support for Implicit and Explicit nonlinear analysis has been enhanced for three majorsolution sequences, SOL 400, SOL 600, and SOL 700:

Implicit Nonlinear (SOL 400)

Support for SOL 400 has been significantly enhanced, particularly multi-subcase withmulti-stepping and full contact capabilities. See Implicit Nonlinear (SOL 400) (p. 29).

Implicit Nonlinear (SOL 600)

Support for thermal (heat transfer) analysis has been added. See Implicit Nonlinear(SOL 600) - Heat Transfer Support (p. 34).

Explicit Nonlinear (SOL 700)

Introduced in the last release, SOL 700 support has been expanded and newcapabilities to postprocess adaptive meshes has been added. See Explicit Nonlinear(SOL 700) (p. 37).

Bolt Modeling

A new modeling tool under the Tools pulldown menu is available for creating boltpreloads and the associated MPCs. This tool can be used for both MSC Nastran andMarc analyses. See Bolt Modeling (p. 55). This is specifically designed for use withSOL 600 and the Marc Preference but can also be used with SOL 400.

Dynamics

Support for dynamics has been expanded in the following areas:

Superelement Support

Support for part superelements and superelement tree definitions have been added.Superelement support has been opened up to multiple subcases and all practicalsolution sequences including normal modes and frequency response. SeeSuperelement Support (p. 39).

Exterior Acoustics2

Support for pre-processing of exterior acoustics is added to this release. See ExteriorAcoustics (p. 41).

1SOL 400 and 700 are only available in MD Nastran and must be submitted using MDPatran.

2Exterior Acoustics is only available in MD Nastran and can only be submitted usingMD Patran.


Phase Angles & Frequency Response

For dynamic force, displacement, velocity, and acceleration loading in frequencyresponse analysis you can now specify the phase angle of the loading for each loadingcomponent. See Phase Angles & Frequency Response Analysis (p. 42)

Random Vibration

The random vibration analysis capability available under the Tools pulldown menuhas been significantly updated. See Random Analysis (p. 43).

Miscellaneous

The following additional enhancements are available in the MSC Nastran Preference.

Linear Contact1

Contact is now available in all standard linear solution sequences (SOL 101, 103, 105,etc.). See Contact in Linear Solutions (p. 45).

Closed Cavities for Radiation Analysis

The radiation load for enclosures (LBC) has been enhanced to ensure a closed cavity.See Closed Cavities for Radiation Analysis (p. 46)

Marc Preference

New Physics Types

Two new physics types are added to the Coupled analysis type in an on-going effortto support Marc’s multiphysics capabilities.

Electrostatics

Electrostatic analysis is now supported in the Marc Preference under the Coupledanalysis type. See Electrostatics (p. 49).

Joule Heating

Joule Heating, a thermal-electrodynamically coupled analysis, is now supported inthe Marc Preference under the Coupled analysis type. See Joule Heating (p. 49).

1Contact in linear solution sequences are only supported in MD Nastran and must besubmitted using MD Patran.

6

Thermal & Structural Support in Coupled Analysis

The coupled analysis type in the Marc Preference now supports submission of purelythermal or purely structural problems. See Thermal & Structural Support inCoupled Analysis (p. 49).

Contact Improvements

The auto detection of discontinuities for analytical deformable bodies is nowsupported as well as contact area and exclusion definitions. These correspond to thethe SPLINE, CONTACT NODE and EXLUDE options in the Marc input deck. Rigidbody growth factors are also supported when defining rigid contact bodies as amechanism for rigid body motion as opposed to velocity, position and force control.See Contact Improvements (p. 50).

Marc Input File Import

The Marc input file reader can now read Mentat databases (.mfd and .mud). See MarcInput File Import (p. 53).

POST Revision 13

The Marc POST code revision 13 is now supported from the Marc DRA (Direct AccessResults) aspect. Marc results files (t16/t19 files) written in this format may have onlycertain elements, nodes, and contact bodies specified to reduce the size of the outputfile. In previous revisions, all results were placed in the POST file. The pre-processingto specify which entities to have Marc write to its POST file will be supported in asubsequent release.

Bolt Modeling

A new modeling tool under the Tools pulldown menu is available for creating boltpreloads and the associated MPCs. This tool can be used for both Marc and MSCNastran analyses. See Bolt Modeling (p. 55)

Third Party Support

ABAQUS

Results files up to ABAQUS 6.6 are now supported. Opening older (pre 6.6) versionsof ABAQUS ODB files requires that they be upgraded using ABAQUS itself, or youcan set the environment variable ABAQUS_DRA_UPGRADE_ODB to YES beforestarting your Patran session.


ANSYS

Results files up to ANSYS 11.0 are now supported as well as import of ANSYS inputdecks.

SAMCEF1

A new element type, Fourier Membrane hypothesis for 1D and 2D, is now supported.element plus an update to read results from version 11 and higher.

1SAMCEF not available in MD Patran.

8

1.2 Supported OS/Hardware Platforms

Vendor OS Levels ChipsetSupport HW Support Graphics

Support

HP (PA-RISC)

HP-UX 11i (11.11) PA8000PA8200PA8500PA8600PA8700PA8800PA8900

PA8000: C160, C180, J280, J282,PA8200: C200, C240, J2240,PA8500: C360, B1000, B2000,C3000, J5000, J7000PA8600: C3600, J5600, J6000PA8700: C3700, C3750, J6700,J6750PA8800: C8000, PA8900: C8022

Visualize: FX5 Pro, FXE,FX5 Pro, FX10 Pro,FireGL-UX, X3

HP (IA-64)* HP-UX 11i 1.6(11.22)HP-UX 11i 2.0(11.23)

Intel Itanium 2 I2: zx2000, zx6000 ATI FireGL 4, FireGL Z1

SUN Solaris 8Solaris 9Solaris 10

UltraSPARC IIIUltraSPARC III+UltraSPARC IIIi

Ultra 30, 60, 80SunBlade 1000, 1500, 2000, 2500

Creator3D, Elite3D,Expert3D, XVR 500, XVR600, XVR 1000, XVR 1200

Intel† Windows 2000 SP4Windows XPWindows XP SP2Windows XP-x64

Pentium IIIPentium 4XeonAMD Opteron

Compaq: W4000, W6000,W8000Compaq Laptops: N800c,N800wDell: Work. 410, 610, 220, 420,620, 330, 340, 350, 360, 370, 380,390, 450, 470, 530, 650, 670Dell Laptops: M50, M60, M70,M90HP: Visualize NT (p-class, x-class),xw4000/xw5000/xw6000/xw8000, xw3100/xw4100xw4200/xw6200/xw8200

HP Laptops: mw8240,mw8440, mw9440IBM: IntelliStation Z-Pro, M-Pro,E-Pro, A-ProFujitsu/Siemens: CelsiusSUN: W1100z, W2100z

3DLabs: Wildcat IV 7110,7210, Realizm 100, 200,800ATI: FireGL 8700/8800,Fire GL E1, X1-128, Z1-128, T2-64, T2-128, X2-256, VS3100, V3350,V5000, V5100, V7100,V7300, V7350, VS100,Mobility Radeon (N800Laptops)HP: fx5+, fx10+NVIDIA: Quadro2 EX,Quadro4700XGL/750XGL/900XGL/980XGL,Quadro4 500/700 GoGL(M50/M60 Laptop),FX330, FX500, FX1000,

FX1100, FX1300, FX3000,FX3400, FX4000

Intel LINUXRed Hat Enterprise4.0

Pentium IIIPentium 4XeonAMD Opteron

Dell: 220, 420, 620, 330, 340,350, 360, 370, 450, 470n, 530,650, 670nHP: Visualize NT (pL-class, xL-class), x-classIBM: IntelliStationSUN: W1100z, W2100z

ATI: FireGL 8700/8800,FireGL X1NVIDIA: FX500, FX1100,FX1300, FX3000, FX3400,FX3450 FX4000,

SGI‡ IRIX 6.5.186.5.196.5.21

R10000R12000R14000

Onyx2, O2, Octane, Octane 2,Fuel

Solid IMPACT, HighIMPACT, CRM, SI, MXI,SE, MXE, V6*, V8*, V10*,V12*


For a complete description of these configurations, see Required Hardware &Software Configurations (Ch. 5) in the Patran Installation and Operations Guide.

SGI SGI AdvancedLinux®Environment withSGI ProPack™ 3SP5

Intel Itanium 2 Prism** FireGL X3

IBM AIX 5.2, 5.3 POWER3POWER4POWER5

43P, 44P, IntelliStation Power265, 275, 285

GXT4500P, GXT6500P

* Hewlett Packard is no longer selling HP-UX Itanium 2 based workstations and the continuedavailability of key third party applications for these systems has ceased. As a result, support ofPatran on this platform will be discontinued in the next release. When interfacing to MSCNastran, only HP-UX 11.23 is supported. This includes reading input files. For most otheroperations, HP-UX 11.22 is supported.

†Microsoft Corporation is no longer licensing Windows 2000 operating systems and may shortlydiscontinue support of this OS. As a result, support of Windows 2000 on this platform will bediscontinued in the next release. Windows XP and Vista will be supported.

‡Silicon Graphics is no longer selling IRIX based workstations and the continued availability ofkey third party applications for these systems has ceased. As a result, support of Patran on thisplatform will be discontinued in the next release.

**SGI Prism support was certified using the IRIX emulation mode only. You must install the IRIXversion of Patran and use IRIX emulation on this machine. The Linux version of Patran on thismachine has not been certified. See the note under SGI IRIX support also.

Vendor OS Levels ChipsetSupport HW Support Graphics

Support

10

1.3 Supported CAD Access

***Patran has two methods for importing Pro/ENGINEER models:

• Import to Native Patran Geometry which runs from within interactivePatran: requires a Pro/ENGINEER license to run on the machine wherePatran is installed, therefore, the list of platforms supporting this importmethod is the Pro/ENGINEER supported machines.

• Import to Parasolid which runs from within interactive Patran: does notrequire a Pro/ENGINEER license to run.

• SGI is not a supported platform.

The following notes are applicable to the Import to Native Patran Geometry method:

HP(PA-RISC)

HP(IA-64)

SGI SUNIBM

RS/6000Windows2000 / XP Linux

CATIA V4 4.2.4 4.2.4 4.2.4 4.2.4 4.2.4*

*A CATIA CATXPRES (.cat) file can be imported. The CATIA to Parasolid translator isavailable. The CAT Direct Translator which runs CATIA in batch mode is not available.

CATIA V5 R17 R14 R17 R17 R17

Pro/ENGINEER†

† The p3_ProE and p3_ProENGINEER executables are built using Pro/ENGINEER version2000i and therefore will not work with earlier versions of Pro/ENGINEER. p3_ProE andp3_ProENGINEER Access allows reading of .geo geometry transfer files generated fromother OS installs of Pro/ENGINEER Access. Not available on HP IA-64 platform.

Wildfire3.0***

Wildfire3.0***

Wildfire3.0***

Wildfire3.0***

Wildfire3.0***

Unigraphics‡

‡UG NX 3.0/4.0 is not available on the SGI IRIX platform. UG NX supports only 64 bit machinesfor HP and SUN Platforms.

NX4.0 NX2.0 NX4.0 NX4.0 NX4.0 XMT**

**Only Parasolid (transmit file) import is supported in this release. Parasolid transmit filesgenerated on other OS platforms can be imported on LINUX.

I-DEAS 11.0 12.0 11.0 12.0

Parasolid††

††Parasolid 18 is supported for XMT import but the Patran kernel is still based on Parasolid 17.

17 17 17 17 17 17 17

ACIS 16.8 16.8 16.8 16.8 16.8 16.8 16.8


The Pro/ENGINEER Wildfire release introduced the following platform changes:

• IBM AIX platform unsupported. Existing Patran translator is still availablefor pre-Pro/ENGINEER Wildfire release.

• SGI5 supports 64-bit only. Patran translator compatible with pre-Pro/ENGINEER Wildfire and Pro/ENGINEER Wildfire release. If runningPro/ENGINEER Wildfire, the SGI5 platform must be a 64-bit capablemachine to run the Patran translator.

The following steps are necessary for customers to use the PatranPro/ENGINEER translator with Pro/ENGINEER after January 10, 2004:

• PTC Important System Notice - Timeouthttp://www.ptc.com/go/timeout/

• PTC Technical Resourcehttp://www.ptc.com/go/timeout/technical_resource.htm

For Pro/ENGINEER 2001:

• Download NMSD.exe and follow PTC instructions.

For Pro/ENGINEER Wildfire:

• Download NMSD.exe and follow PTC instructions.

• Download wildfire datecode 2003490 and follow PTC instructions.

The Pro/ENGINEER Wildfire 2.0 release introduced the following platformchanges:

• HP-UX and SUNS supports 64-bit only. Patran translator compatible withpre-Pro/ENGINEER Wildfire 2.0 and Pro/ENGINEER Wildfire 2.0 release.If running Pro/ENGINEER Wildfire 2.0, the HP-UX and/or SUNS platformmust be a 64-bit capable machine to run the Patran translator

Pro/ENGINEER Wildfire 3.0

HP Itanium platform not supported.

• Linux is supported for Import to Parasolid

• The p3_ProE and p3_ProENGINEER executables are built usingPro/ENGINEER version 2000i and therefore will not work with earlierversions of Pro/ENGINEER.

p3_ProE and p3_ProENGINEER Access allows reading of .geo geometry transfer filesgenerated from other OS installs of Pro/ENGINEER Access.

12

1.4 Analysis1 Preferences Tested

Solver Platforms Solver Version

MSC Nastran All MSC Nastran 2007 r1

Marc All 2007 r1

Dytran All 2007 r1

MSC Flightloads All 2007 r1

Thermal All 2007 r1

LS-DYNA3D All 970

PAMCRASH All 1995 / 1997

SAMCEF All 11 / 12

ABAQUS*

* ABAQUS discontinued platforms remain at the level of support at the time they werediscontinued by HKS. For instance SUN support is frozen at 6.4.

All 6.6

ANSYS†

†Results access is enhanced to 11.0 (results import is frozen at 8.1).

All 11.0

1Dytran, MSC Flightloads, Thermal, LS-DYNA3D, PAMCRASH, and SAMCEF are notaccessible via MD Patran.


1.5 Technical SupportFor help with installing or using an MSC.Software product, contact your localtechnical support services. Our technical support provides the following services:

• Resolution of installation problems• Advice on specific analysis capabilities• Advice on modeling techniques• Resolution of specific analysis problems (e.g., fatal messages)• Verification of code error.

If you have concerns about an analysis, we suggest that you contact us at an earlystage.

You can reach technical support services on the web, by telephone, or e-mail:

Web Go to the MSC.Software website at www.mscsoftware.com, and click on Support.Here, you can find a wide variety of support resources including applicationexamples, technical application notes, available training courses, and documentationupdates at the MSC.Software Training, Technical Support, and Documentation webpage.

PhoneandFax

Email Send a detailed description of the problem to the email address below thatcorresponds to the product you are using. You should receive an acknowledgement

United StatesTelephone: (800) 732-7284Fax: (714) 784-4343

Frimley, CamberleySurrey, United KingdomTelephone: (44) (1276) 67 10 00Fax: (44) (1276) 69 11 11

Munich, GermanyTelephone: (49) (89) 43 19 87 0Fax: (49) (89) 43 61 71 6

Tokyo, JapanTelephone: (81) (3) 3505 02 66Fax: (81) (3) 3505 09 14

Rome, ItalyTelephone: (390) (6) 5 91 64 50Fax: (390) (6) 5 91 25 05

Paris, FranceTelephone: (33) (1) 69 36 69 36Fax: (33) (1) 69 36 45 17

Moscow, RussiaTelephone: (7) (095) 236 6177Fax: (7) (095) 236 9762

Gouda, The NetherlandsTelephone: (31) (18) 2543700Fax: (31) (18) 2543707

Madrid, SpainTelephone: (34) (91) 5560919Fax: (34) (91) 5567280

14

that your message was received, followed by an email from one of our TechnicalSupport Engineers.

Patran SupportMSC Nastran SupportDytran SupportMSC Fatigue SupportMarc SupportMSC Mvision SupportMSC SuperForge SupportMSC Institute Course Information

[email protected]@mscsoftware.commscdytran.support@[email protected]@mscsoftware.commscmvision.support@mscsoftware.commscsuperforge.support@[email protected]

MSC.Patran Release Guide

CHAPTER

3 MSC Nastran Preference

� Optimization (SOL 200) Support

� Nonlinear Analysis (SOLs 400, 600, & 700)

� Dynamic Analysis

� Miscellaneous

24

3.1 Optimization (SOL 200) SupportSupport for SOL 200 has been improved in four different areas:

Default Design StudyA default design study have been added to facilitate the setup of simple optimizationjobs. All design variables, constraints, and objectives created become automaticallyassociated with this default design study as long as there are no other design studiesdefined. It used to be that a design study would have to be created first and allvariables, constraints, and objectives associated to a study. This was a manualprocedure. In addition, when a SOL 200 job is setup, the default design study isselected by default now also. This results in a more streamlined approach with lessuser interaction to submit an optimization analysis.

Selected Automatically

Selected Automatically

25CHAPTER 3MSC Nastran Preference

Additional Analysis TypesOptimization is or can be a multi-disciplinary analysis. Previously only linear staticanalysis (SOL 101) and normal modes (SOL 103) were supported by the SOL 200optimization interface. This has been expanded now to include:

• Buckling Analysis (SOL 105)

• Frequency Response Analysis (SOL 108 & 111)

• Transient Dynamic Analysis (SOL 112)

Design constraints, responses and objectives specific to these additional analysis typesare now supported. These now include all of the following:

• Frequency

• Buckling mode (multiple mode numbers may be specified)

• Displacement / Eigenvector

26

• Velocity

• Acceleration

• Stress / Composite Stress

• Strain / Composite Strain

• Composite Failure

• Strain Energy / Total Strain Energy

• Force / Grid Point Force

• SPC Force

• Weight

• Volume

• Fractional Mass

• Compliance / Average Compliance

Note: In buckling optimization, for each buckling subcase selected one pair of staticand buckling subcases is written to the input deck.

Available demo(s): See entries in the Optimization category under Run Demo in theAnalysis form.


Topology OptimizationTopology optimization for SOL 200 has been enhanced to

• Generate a complete TOPVAR BulkData entry under Design Study/Pre-process.

• Support topology manufacturability constraints in the Quick Topology andGeneral Topology Optimization.

• Support three design responses: RTYPE= FRMASS (Fractional Mass);RTYPE=COMP (subcase dependent compliance) and Averaged Compliance(global value).

• Sizing and topology optimization can be combined in a single run.

Optimized Topology

Original Shape

Smoothed Mesh

28

Examples of topology optimization with extrusion manufacturing constraints:

Available demo(s): See entries in the Optimization category under Run Demo in theAnalysis form.

Before After

AfterBefore

Smoothed


3.2 Nonlinear Analysis (SOLs 400, 600, & 700)1

Support for Implicit nonlinear analysis has been enhanced for three major solutionsequences, SOL 400, SOL 600, and SOL 700:

Implicit Nonlinear (SOL 400)Solution Sequence 400 is a new implicit nonlinear capability in MSC Nastran and hasbeen significantly expanded between R1 and R2 to include many of the high-endnonlinear capabilities, such as 3D contact, previously available only in SOL 600. Thesecapabilities are now available as "native" features of MSC Nastran. These capabilitiesinclude:

• user-friendly multi-body 2D and 3D contact

• enhanced subcase and multi-stepping capability

• advance nonlinear element formulations

• job controls

Enhancements have been made to provide complete support for all of the commonlyused SOL 400 capabilities, providing a powerful, yet user-friendly package capable ofcomplex contact and nonlinear analysis. Above shows a deformation anddisplacements from a SOL 400 “deformable – deformable” contact model – the topbeam is loaded by a specified displacement on the top corner. This beam then movesdown and contacts the lower beam, pushing it down also.

1SOL 400 and 700 are only available in MD Nastran and can only be submitted via MD Patran.

30

Since SOL 400 shares many of the same capabilities and job controls as SOL 600,support for SOL 400 is implemented using the existing Implicit Nonlinear SolutionType which was previously implemented for SOL 600. Most of the contact controlssuch as BCPARA, BCBODY, BCTABLE etc. and most of the job controls such asNLAUTO and NLSTRAT are common between 400 and 600.

Where there are differences, and for obvious requirements such as the executivecommand line, Patran keys off of the “SOL 400 Run” toggle on the Analysis – SolutionType – Solution Parameters form. The default for this release is that this toggle is OFF(e.g. if the solution type is set to Implicit Nonlinear a SOL 600 input file will be writtenout by default), so the “SOL 400 Run” toggle must be turned ON to write out a SOL400 input file.

Traditional MSC Nastran elements use a small strain formulation, meaning they loseaccuracy at high strain levels such as may occur in large deformation plasticityproblems. Problems like this are often encountered in manufacturing simulations.One of the major new features of SOL 400 is the implementation of advance nonlinearelements. These elements are capable of accurately capturing large deformation/large strain behavior. The user specifies the use of these elements by includingPSLDN1/PSHLN1 entries that correspond to the PSOLID or PSHELL entries. This isautomatic when an elastic-plastic material model is referenced for the property set.


Below is a plot of deformation and displacements and from a SOL 400 “rigid -deformable” contact model – the model is a cube loaded by a rigid surface comingdown at an angle.

Another major difference of traditional MSC Nastran capabilities are subcase andmulti-stepping capabilities. All traditional nonlinear solutions (SOL 106, 129, 600) usemultiple subcases in the same input file to denote complex loading histories where theending state of the previous subcase was used as the starting state of the currentsubcase. This way multiple subcases run in the same analysis could specify differentloads and constraints and thus specify a changing load history to perform complexsimulations. This was somewhat disconnected from the original concept of subcasesin linear analyses to represent separate loading states that were disconnected from theloading states represented by the other subcases.

SOL 400 uses the concept of subcases as separate disconnected loading histories, buthas provided for the idea of complex and connected loading histories by theintroduction of the new STEP and ANALYSIS case control entries. Thus LBCgroupings that were designated via subcases in SOL 106, 129 and 600 analyses aredesignated via STEPs in SOL 400 analyses. The concept of the subcase in SOL 400provides a completely new capability for nonlinear analysis, which is the idea ofseparate, disconnected sets of STEPs all in the same input file, constituting what

32

would have had to be done previously using separate input files. Thus if a SOL 400run had two subcases each consisting of two steps, the first subcase would run and thetwo steps in the subcase would be connected (e.g. the starting stress/strain state of thetwo step would be the ending stress/strain state of the first step); then before startingthe second subcase all loading and the stress/strain state would be reset to the initialconditions and the second subcase would be run just as if it were an independentanalysis. To summarize:

• Multi-Stepping

• Mix and Match Analysis Types

• Multiple Analyses in Single Input File via Subcases

• Term “Subcase” Refers to Separate Analyses (resets stress/strain andloading state)

• Each Subcase may have many STEPs

• New term – STEP (connected loading)

In addition to the new STEP entry SOL 400 also has a new ANALYSIS case controlentry. The ANALYSIS entry is used to specify the analysis type (such as nonlinearstatic, nonlinear transient, modal, buckling) of the STEP it is associated with. Using theImplicit Nonlinear solution type users can create multiple STEPS of various types(selected on the Analysis - Subcase form) and then use the Analysis - Subcase Selectmenu to specify the order in which they are created in the input file.

Below is a plot of deformation and displacements and from a SOL 400 3D contactsolution – the model is a cylindrical shell model loaded from the top and bottom bytransverse offset cylindrical rigid bodies.


One of the main motivations for creating SOL400 was to provide users with user-friendly 2 and 3D multi-body contact in a native MSC Nastran interface. Setting upcontact problems in S0L 400 is nearly identical to setting them up for SOL 600. Thesame BCBODY, BCTABLE, BCPARA etc. entries are used. Also, the user interface forcreating contact bodies and controlling their interaction is identical. In summary SOL400 support provides:

• 2D and 3D Contact

• User-Friendly Multi-Body Contact

• Complete Interaction Control – Friction, Delayed Slide-Off, etc.

• Contact Interface Results

Additional Information. The following is also now supported for SOL 400 jobs:

• Material non-linear extensions using NLMOPTS for elastoplastic materials

• Non-linear extensions using PSHLN2 for PLPLANE

• 2D Solid Composites - PLCOMP

• 3D Solid Composites - PCOMPLS

Available demo(s): See entries in the Implicit Nonlinear category under Run Demo inthe Analysis form.

34

Implicit Nonlinear (SOL 600) - Heat Transfer SupportThe implicit nonlinear solution (SOL 600) was enhanced to support heat transfercapabilities, which allows users to perform contact conduction and other advancedthermal analyses. SOL 600 support has been added under the Thermal analysis typeto support thermal contact, contact tables and associated properties and parameters aswell as executive command line support to run a SOL 600 heat transfer analysis.

Below is a contact table form from a steady state heat transfer (normally a SOL 153)heat transfer model with contact conductance. Heat Transfer Coefficient, NearContact Heat Transfer Coefficient, Distance Dependant Conductivity, etc. are all inputvia the contact table. This form is accessible from the Analysis - Subcase – SubcaseParameters form.

Modifications were made to support SOL 600 heat transfer by using the regularThermal analysis preference by adding a toggle labeled “SOL 600 Run”. The presenceof contact bodies or explicitly turning this toggle ON causes Patran to write out the


input file in the format required for SOL 600. Both transient and steady state heattransfer analyses are supported, along with most other heat transfer capabilitiessupported by standard heat transfer.

Below is a chip and circuit board model showing the MPC’s used to model contactconduction and a plot of temperature result contact conductance model. The heat isgenerated by the chip and transferred to the board via contact conductance.

36


• Material Failures - MATF

• Composite Stacking - MSTACK

• Job monitoring capabilities

• Stress-strain capabilities, i.e., MRTABLS1/2

Available demo(s): See entries in the Thermal category under Run Demo in theAnalysis form.


Explicit Nonlinear (SOL 700)Introduced as one of the major capabilities MSC Nastran is SOL 700. Material supporthas been expanded and support for time domain NVH and adaptive mesh post-processing for airbag analysis has been added.

Below is an adapted mesh model as read in from the DBALL file and stored usingoffset ID’s in separate groups. The user can then select one or more time incrementsfrom the Quick Plot Results menu for post-processing. The Quick Plot algorithm pullsup the mesh associated with the increment(s) selected for post-processing. Using thismethod a user can do a pseudo-animation to show the progression of the analysis. Themodel is loaded by a cylindrical rigid pin with a 200 lb load at the center.

38


• Additional Properties

• PBEAM71

• BPEAMD

• PBELTD

• PELAS1

• PLPLANE

• PLSOLID

• PSHELL1

• PSHELLD

• PSPRMA

• GUI for time domain NVH

• Many additional materials


3.3 Dynamic AnalysisThe following additional enhancements are available in the MSC Nastran Preference.

Superelement SupportSupport for superelements (SE) has been improved in following ways:

1. Multiple subcases - previously only one subcase was supported. SEs are nowassociated to each analysis job, whereas before they were associated to asubcase. Each job can have it’s own selection of active SEs defined, thusmultiple subcases is no longer a limitation.

2. All practical solution sequences - previously only statics (SOL 101) wassupported. Now normal modes (SOL 103), frequency response (SOL 111)and others are supported. There is basically no restriction except that whichMSC Nastran places on SE analysis.

3. Part superelements - previously only SESET definition of SEs wassupported. Now you can turn ON Write Part Superlements (default) in theTranslation Parameters form and each superelement will be written to itsown BEGIN BULK SUPER = id section of the input deck.

4. Superelement tree - previously you could not specify upstream versus downstream SEs. Now you can indicate to MSC Nastran the upstream SEs.Upstream SEs are those not connected directly to the residual structure(SE0).

SE1 SE2

SE3 SE4

SE5 SE6

SE0Residual Structure

SE7

Downstream SE

Upstream SEs

Downstream SEs

Upstream SEs

40

Available demo(s): Flyswatter - in the Dynamics or Superelement catagory underRun Demo on the Analysis form.


Exterior Acoustics1

Model creation and setup of exterior acoustics is supported in this release to createMSC Nastran elements CACINF4/CACINF3/PACINF plus BEGIN BULK AFPMbulk data entries and output requests.

Exterior acoustics models contain four different types of finite element meshes tosimulate the surrounding environment and setup the acoustical properties and forpostprocessing capabilities. These include:

1. Structural model of the component of interest, such as a plate or a car bodysubject to frequency driven input/loading in frequency response analysis(SOL 108 and 111).

2. Solid elements modeling the surrounding fluid, generally air. These can behex or tet elements. The structural model is contained within the fluid mesh.

3. Infinite (2D solid) elements that are coincident with the outside faces of thesolid fluid elements that extend the fluid into infinite space.

4. Field points and/or field point meshes to recover acoustic data at specificlocations within the fluid medium away from the structure.

Available demo(s): See entries in the Dynamics category under Run Demo in theAnalysis form.

1Exterior Acoustics is only available in MD Nastran and can only be submitted viaMD Patran.

Infinite Fluid Elements

Solid Elements of Fluid

Field Point Meshes

Structural Model embedded in Fluid

42

Phase Angles & Frequency Response AnalysisFor frequency response analysis, users may specify dynamic loading phase angles forforce, displacement, velocity and acceleration loading. When phase angles arespecified, the DPHASE option is written to the bulk data for all nodes and componentsspecified, which is then referenced from the dynamic load card (RLOAD1). Below isan example of the form for specifying the phase angles for forces.

Available demo(s): See the DPHASE demo in the Dynamics category under RunDemo on the Analysis form.


Random AnalysisThe updated Random Analysis tool available under the Tools pulldown menu hasbeen updated. Significant improvements to the user interface and functionality havebeen added. Some of these include:

• Access to xdb files created by BBBT (Blocked Binary Balanced Tree) method(MSC Nastran 2005 or higher). This method supports creation of almostunlimited size XDB files which the Random Analysis tool can access.

• Support for new SPCD method of enforced motion.

• Support for both real/imaginary and Magnitude/Phase output in frequencyresponse analysis.

• Supports up to 25,000 entries in the random input profile.

• Log and linear interpolation.

• XY plots of:

• von-Mises stress for solid and plate at center or corners

• Cross-spectral density and Cross-correlation

• Relative response (calculation on the fly)

• plus all other plots previously available (PSD response)

• RMS fringe plots of:

• von-Mises stress for solid and plate at center or corners

• Log-log or linear integration

• Scale factor for fringe plots (e.g., 3*RMS)

• Import results as scalar rather than tensor to prevent improper use

44

See Random Analysis (p. 1) in the MD Patran Reference Manual, Part 1: Basic Functionsfor tutorials on how to use the Random Analysis tool.

Random vibration analysis of a cylinder. Response PSDFs are plotted and a fringe plotof RMS Acceleration.

Available demo(s): See entries in Dynamics catagory under Run Demo on theAnalysis form.


3.4 Miscellaneous

Contact in Linear1 SolutionsOne of the widely anticipated capabilities of MSC Nastran is the ability to do 3Dcontact in the linear solution (SOL 101, 103, 105, etc.). This capability is often called“linear contact” and is supported by providing the ability to write out contact bodiesand define contact tables directly from the Subcase Parameters form of all linearsolution sequences. Only SOL 101 has true iterative contact. The other linear solutionsequences only provide “glued” contact, providing the ability to connect dissimilarmeshes and load contact bodies via rigid surfaces. In summary:

• SOL 101 Contact:

• True Iterative Contact, Contact Controls (e.g. Friction)

• Deformable - Deformable, Rigid – Deformable

• Non-101 Linear Solutions (103, 105, etc.) - Glued contact only:

• to connect dissimilar meshes

• for load application through rigid bodies

Below is a plot of deformation and displacements and from a SOL 101 “LinearContact” Model – the model is loaded by a cylindrical rigid pin with a 200 lb load atthe center. Also shown is a SOL 103 model glued together (dissimilar meshes) at thecenter.

Available demo(s): See entries in the Linear Contact category under Run Demo in theAnalysis form.

1Contact in linear solution sequences is only supported in MD Nastran and can onlybe submitted via MD Patran.

46

Closed Cavities for Radiation AnalysisWhen creating an enclosure it is sometimes not feasible to model everything that willbe generating or receiving heat from a model. The user models everything that is ofinterest, and then simply wants to close the remainder of the his model with a singleambient element that will allow his view factors to sum to 1.0. This is done with aRADCAV card and can be accomplished by selecting the complete enclosure toggle.The ambient temperature of the open space is then entered, and now the analysis isable to complete with a total view factor of 1.0.

CHAPTER

2 General Enhancements

� Isosurface Support

� Interactive Viewport

� Spectrums and Ranges

� Demonstration Problems

16

2.1 Isosurface SupportSupport for isosurfaces has been added to the Results application. Below are a fewexamples of possible plots with isosurfaces.

Five isosurfaces at constant coordinate locations (y-locations) through the model andwith a stress fringe plot on each isosurface.

Five isosurfaces at constant stress with displacement fringe shown in undeformed anddeformed views.

Isosurfaces are available under the Results application as a results tool similar tofringe, deformation, marker and other tools. Isosurfaces currently have the followinglimitations, which will be removed in a subsequent release:

• Only TET4 elements are supported.

• Only fringe plots can target an isosurface

17CHAPTER 2General Enhancements

2.2 Interactive ViewportThe following enhancements have been made with respect to interaction with themouse and graphics.

Middle Mouse Button MappingThe middle mouse button (MMB) is now mapped to various key combinations suchthat all four model manipulation operations are easily accessible to the user. They canalso be easily modified under Preferences / Mouse...

By default the following mapping is set:

• Rotate X/Y - MMB

• Zoom - MMB/Control Key

• Pan X/Y - MMB/Shift Key

• Rotate Z - MMB/Control+Shift Keys

18

Right Mouse Button1 InteractionA contextual menu is available in the open portions of the viewport, away fromgraphical entities by using the right mouse button (RMB). The menu containscommon utilities frequently used such as “Fit View,” “Refresh Graphics,” and modeldisplay and orientation operations. If an entity is selected, common operations suchas “Location,” “Attributes,” and others are available.

Right Mouse Button on Tree Widget EntitiesTree widget entities, currently available under the Hierarchical Groups functionalityhave been wired with RMB functionality to take you to the requested action as shownabove. Any tree widget can be programmed using PCL to take advantage of the RMBfunctionality.

1Cntl-Shift-RMB now controls deselection of entities and Shift-RMB controls cyclepicking.


2.3 Spectrums and RangesSpectrums can now have up to 256 colors and will match whatever the number ofranges defined in a particular plot. As an example, below are two plots of results onthe same model, one from a previous release and one from this release. The spectrumhas a non-standard 30 ranges of data defined. Note that the colors used in the plotfrom the previous release repeat colors after exhausting the primary 16 colors. In thisrelease, the number of primary colors remains the same, however, interpolationbetween each color is made to accommodate the total number of data ranges defined.

Before30 RangesColors Repeat

Now30 Ranges30 Colors

20

2.4 Demonstration ProblemsSimple demonstration problems have been included with this version of Patran toillustrate new and existing features. Each new functionality that lends itself to ademonstration is indicated for the Marc and MSC Nastran Preferences in the chaptersthat follow.

The demonstration problems are accessed under the Analysis application by settingthe Action to Run Demo after a new or existing database has been opened. Asubordinate form appears allowing you to select a demo from a categorized set. To seethe list of MSC Nastran demos, the Preference must be set to MSC Nastran. To see thelist of Marc demos, the Preference must be set to MSC.Marc. Select the demo ofinterest and the press Apply on the main Analysis form.

This functionality of including demos is fully customizable by the user. In theinstallation directory, under the $P3_HOME/md_demos directory is a README filethat explains how to add your own demos. When doing this, we suggest you copy anexisting one and make the necessary changes by changing the names and other thingsas necessary.


Once a demo has been run, if you run it again, it will only open the existing database.To run a demo again from scratch, you need to delete the database that it created. Ifyou set the Method to Analysis Deck, the solver will not be run. With the Method setto Full Run, the solver will be run for most demos depending on how the session fileis set up under the demo. However, be aware that you must have Patran configuredto run the appropriate solver for a demo to run to comletion properly.

CHAPTER

4 Marc Preference

� New Physics Types

� Contact Improvements

� Marc Input File Import

� POST Revision 13

� Bolt Modeling

48

4.1 New Physics TypesAdvances have been made in the Coupled analysis type for the Marc Preference tosupport multiple physics types. This now comprises structural, thermal, electrical,and coupled combinations thereof.

Under the Materials application, electrostatic and electrodynamic constitutivematerial models are supported for defining permittivity and resistivity. Resistivitycan be defined as temperature dependent. Under the Loads/BCs application, voltage,current, potential, and charge can be defined. Contact allows for electrical properties.

49CHAPTER 4Marc Preference

ElectrostaticsUnder the Step Select form, you select Electrostatic to do an electrostatic analysis. Onlyvalid Load Steps will be displayed for you. Available demo(s): e8x20,e8x21,e8x28

Joule HeatingUnder the Step Select form, you select Thermal and Electrodynamics to set up a JouleHeating analysis. Again, only valid Load Steps are displayed. Available demo(s):e5x12

Thermal & Structural Support in Coupled AnalysisUnder the Step Select form, you can also now run purely structural or purely thermalanalysis as well as the default structural-thermal coupling.

The selected coupling ofphysical types appearshere.

50

4.2 Contact ImprovementsMore support for Marc contact features have been added to this release.

Analytical Contact DefinitionsWhen using Marc’s SPLINE option (analytical definition of a deformable body, i.e.,the fitting of coons surfaces in 3D or splines in 2D to a deformable body after eachincrement for better accuracy), you may tell Marc to automatically detectdiscontinuities such that no coons surface or spline is fit around a discontinuity, suchas a natural joint or sharp corner where you want that discontinuity preserved. Thisrequest is made on the Input Data form when defining Deformable Contact in the LBCapplication. A feature angle is specified to determine what constitutes a discontinuityand what does not. Patran can also detect, select, and visualize the discontinuities (3Donly).

Instruct Marc to do it

Instruct Patran to do it

Example discontinuity locations


Contact Area and Exclusion DefinitionsContact Area and Exclusion definitions are used to reduce the computational expenseof contact analysis by defining the nodes that are likely to come in to contact on thecontact body or excluding the regions (edges/surfaces) of the contacted body whereno contact is likely to take place. There is danger in using these in that if an entity isspecified and does make contact in these areas, it is likely to penetrate the contactbody. This definition is done on the Contact Input Data form when definingDeformable Contact bodies in the LBC application. These definitions write theCONTACT NODE and EXCLUDE options to the Marc input deck.

Available demo(s): Rolling Contact

Area to exclude since no contact is likely

Nodes likely to come into contact

52

Rigid Contact Growth FactorsRigid body growth can now be applied to rigid contact bodies when defining contactin the LBC application under the Input Data form. This only works for the new TABLEformat of the Marc input deck. The figure below shows a rigid cylinder growingradially to expand a metal belt. Growth factors are written to the Marc CONTACToption. in the input deck. Available demo(s): Belt Expansion

MiscellaneousRetain Moment (Shell-Shell) is now supported through the contact table.


4.3 Marc Input File ImportThe Marc input file reader can now read Mentat databases (.mfd and .mud). The oldMarc input file reader is still active (turn OFF the “Use Mentat Input File Processor”toggle on the file browser form). Reading of the History section is not yet supportedas well as many solution parameters, but most model entities are supported.

Patran.db

.dat

Mentat.mud.mfd

Marc

.t16

.t19

Patran.db

.dat

Mentat.mud.mfd

Marc

.t16

.t19

Mentat

Patran

54

4.4 POST Revision 13The Marc POST code revision 13 is now supported from the Marc DRA (Direct AccessResults) aspect. Marc results files (t16/t19 files) written in this format may have onlycertain elements, nodes, and contact bodies included in the POST file to reduce its size.In previous revisions, all results were placed in the POST file.

As an example, in the below picture, you can see that only elements 1-10 and 30-40have results associated to them. The dark black areas are element with no resultsassociated with them because they are not in the POST file.

The pre-processing to specify which entities to have Marc write to its POST file will besupported in a subsequent release.


4.5 Bolt ModelingA new modeling tool under the Tools pulldown menu is available for creating boltpreloads and the associated MPCs. For Marc, Overclosure MPC and for Nastarn,either Overclosure or Explicit MPCs can be created. This tool has three methods.

Regardless of which method is used, the following operations are done to create eachbolt pre-load.

1. The mesh of the bolt is split at the designated cutting plane

2. MPCs are created to connect the two sections above and below thedetermined cutting plane

3. A coordinate system is created at the specified control node location whichcan be offset as required for visualization purposes

4. A load or displacement applied for the pre-load in the Y direction (axial boltdirection) at the control node location.

5. Each bolt pre-load is named and stored in the database.

6. Undo, Show, Identify and Delete capabilities are also supported.

Geometric Based

VectorBased

ElementBased

Geometric Based

56

Geometric basedThis is by far the easiest and most intuitive method to use. A set of elements is selectedthat defines the bolt. Based on the geometric dimensions and the internal use of themass property utility, the most likely axial direction of the bolt is determined. Themesh is split at the center of the selected element set. If the geometric properties of theselected element set does not distinctly determine the axial direction of the bolt, thecutting plane may not be determined correctly and a strange cut will result. At least atwo to one axial versus width ratio is recommended.

Vector basedThis method requires that you define a vector, the base of which determines thelocation of the cutting plane, which is normal to the defined vector. The element setselected must have a layer or two or three element both above and below the base ofthe defined vector plane in order to cut the bolt successfully.

Element basedThis method may be more advantageous for certain element types in that you selectelement faces (3D), element edges (2D), or element (1D) where you want the meshsplit and the MPCs applied. For 3D elements, this can be difficult as the graphicsscreen can get messy trying to select element faces, especially TET elements. For 2Dand 1D elements, this method is easy. The split will occur only for the selected elemententities, which may be problematic if you only select a portion of the cross section.

Available demo(s): e8x69, Cylinder Head; (available in under Nastran also).

I N D E XPatran Release Guide

I N D E XPatran Release

Guide
A
ABAQUS, 6, 7ACIS, 10Acoustics, 4, 41Adaptive Meshing, 4, 37AIX, 9

BBolt Modeling, 4, 6, 55Buckling Analysis (SOL 200), 3, 25

CCAD Access, 3, 6, 10

InterOp R16, 3Parasolid 17, 3UG NX 4.0, 3

CATIA V4, 10CATIA V5, 10Closed Cavities for Radiation, 5, 46Contact, 5, 6, 45, 50Coupled Analysis, 6, 49

DDefault Design Study, 3, 24Demonstration Problems, 2, 20DPHASE Support, 5, 42

EEase-of-use enhancements

Load/BCs, 8

Electrostatics, 5, 49Enhancements, 2

CAD Access, 3, 6InterOp R16, 3Parasolid 17, 3UG NX 4.0, 3

General, 2, 15Interactive Viewport, 2, 17Isosurfaces, 2, 16Marc support, 5

Coupled Analysis, 6, 49Electrostatics, 5, 49Import, 6, 53Joule Heating, 5, 49Postprocessing, 6, 54

MD Nastran support, 3Memory Management, 2Random Analysis, 5, 43Spectrums and Ranges, 2, 19

Explicit Nonlinear AnalysisSOL 700, 4, 37

Exterior Acoustics, 4, 41

FFrequency Response, 5, 42Frequency Response (SOL 200), 3, 25

HHardware, 8Highlights, 2HP

Supported OS levels, 8

INDEX58

IIBM, 9I-DEAS, 10Implicit Nonlinear Analysis

SOL 400, 4, 29SOL 600, 4, 34

Intel, 8Interactive Viewport, 2, 17IRIX, 8Isosurfaces, 2, 16

JJoule Heating, 5, 49

KKey Highlights, 2

LLicensing, 2Linear Contact, 5, 45LINUX, 8Load/BCs enhancements, 8

MMarc Input File, 6, 53Marc Support

Bolt Modeling, 6, 55Contact, 6, 50

MD NastranBolt Modeling, 4, 6, 55Dynamics, 4, 39

DPHASE Support, 5, 42Exterior Acoustics, 4, 41Superelements, 4, 39

Miscellaneous, 5, 45Closed Cavities for Radiation, 5, 46Contact in SOL 101, 5, 45

Nonlinear Analysis, 4, 29Explicit SOL 700, 4, 37Implicit SOL 400, 4, 29Implicit SOL 600, 4, 34

Optimization SOL 200, 3, 24Buckling Analysis, 3, 25Default Design Study, 3, 24Frequency Response, 3, 25Topology Optimization, 3, 27Transient Dynamics, 3, 25

Memory Management, 2Mentat Database, 6, 53

NNonlinear Analysis, 4, 29

Explicit SOL 700, 4, 37Implicit SOL 400, 4, 29Implicit SOL 600, 4, 34

OOperating systems, supported, 8Optimization, 3, 24

PParasolid, 10Platforms, supported, 8Postprocessing, 2, 4, 6, 16, 37, 54Pro/ENGINEER, 10

RRandom Analysis, 5, 43

59INDEX

Ranges and Spectrums, 2, 19Red Hat, 8

SSAMCEF, 7SGI, 8Solaris, 8Spectrums and Ranges, 2, 19Sun, 8Superelements, 4, 39Supported OS levels, 8Supported platforms, 8SuSE, 8

TThird Party Support

ABAQUS, 6, 7SAMCEF, 7

Topology Optimization (SOL 200), 3, 27Transient Dynamics (SOL 200), 3, 25

UUnigraphics, 10

WWildfire, 10Windows, 8

INDEX60

patran 2007r1 release guide

Documents

cylindrical

field point

tools pulldown

time domain

linear solution

true iterative

major solution

connect dissimilar