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2142-391 Engineering Mechanical Laboratory
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Instructors
Monday Sections (1-6)
Asst. Prof. Kanit Wattanavichien (KWC)
Asst. Prof. Boonchai Lertnuwat (BLN)
Lect. Thanyarat Singhanart (TSN)
Lect. Chanat Ratanasumawong (CRW)
Lect. Pairat Tangpornprasert (PTP)
* Asst. Nopdanai Ajavakom (NAV, Mon)
* Lab coordinator
Friday Sections (7-13)
Prof. Somsak Chaiyapinunt (SCP)
Asst. Prof. Kanit Wattanavichien (KWC)
Asst. Nopdanai Ajavakom (NAV, Mon)
Lect. Alongkorn Pimpin (APP)
Lect. Phongsaen Pitakwatchara (PPT)
Lect. Sawat Luengruengrit (SLR)
* Assc. Prof. Asi Bunyajitradulya (ABJ, Fri)
* Lab coordinator
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Introduction to experimentation as a means to acquire knowledge.
Practice applying prior knowledge and basic principles together with experimentation
to physical systems in order to
gain better understanding of learned basic principles,
gain further knowledge.
Introduction to some basic mechanical and automotive systems, their underlying
principles, and how they work.
Course Objectives
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Through experimentation, laboratory, practice and homework:
Experimentation and basic concepts
error and uncertainty analysis
measurement and instrumentation
data analysis
interpretation of experimental results
reporting of experimental results
basic experiments in solid mechanics, thermodynamics, fluid mechanics and basic
engine testing
Course Description
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Time:
Sec 1-6: Lec: Mon 1-2 pm, Lab: Mon 2-5 pm.
Sec 7-13: Lec: Fri 1-2 pm, Lab: Fri 2-5 pm.
Place:
Laboratory: Laboratory locations
First floor, ME2 building
First, second, and third floor, ME1 building
Presentation: Room will be announced.
Time and Place
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Experiments and Instructors
Lab No. Lab Sec 1-6(Mon., 1-5 pm)
Instructor
Sec 7-13(Fri., 1-5 pm.)
Instructor
1 Engine Testing KWC KWC
2 Material Properties TSN
3 System Dynamics CRW NAV
4 Centrifugal Pump APP
5 Pipe Flow ABJ (or 10)
6 Deflection of Beam PTP
7 Heating Value Measurement BLN PPT
8 Cross Flow Heat Exchanger SCP
9 Thermocouple and Viscosity NAV SLR
10 Wind Tunnel Testing (ABJ, or 5)
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4-point scale: 4 = A, 3.5 = B+, … (you know the rest)
Weight
Participation 25
Laboratory participation (by instructor, 4-scale) 15
Presentation participation (by points 4-scale) 10
(simply participate by asking questions)
Report (4-scale) 25
Presentation (4-scale) 25
Oral Exam (4-scale) 25
Scale: Score will be based on 4-point scale.
Grade: Your grade will be the weighted-average of all the 4-point-scale
scores.
Evaluation and Grading
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Class Conduct and Schedule
Week Contents
1 Orientation
2-4 2-3 Laboratory 1
4 Presentation (+Individual report)
5-7 5-6 Laboratory 2
7 Presentation (+Group report)
8-10 8-9 Laboratory 3
10 Presentation (+Individual report)
11-13 11-12 Laboratory 4
13 Presentation (+Group report)
14 Oral Examination
Each section does 4 laboratories
Each laboratory: 2 weeks of laboratory + 1 week of presentation
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Schedule for Each Group & Rotation
Sec Lab 1 Lab 2 Lab 3 Lab 4
1 1 9 7 6
2 2 1 9 7
3 3 2 1 9
4 6 3 2 1
5 7 6 3 2
6 9 7 6 3
Sec Lab 1 Lab 2 Lab 3 Lab 4
7 1 9 8 7
8 3 1 9 8
9 5 3 1 9
10 4 5 3 1
11 7 4 5 3
12 8 7 4 5
13 9 8 7 4
Monday Sections (1-6) Friday Sections (7-13)
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Required Textbook:
Figliola, R. S., and Beasley, D. E., 2000, Theory and design for mechanical
measurements, 3rd Edition, Wiley, New York.
Class Web: http://www.lecturer.eng.chula.ac.th/fmeabj/index.php3
For communication, announcement, etc., check it twice a week.
Textbooks and Class Web
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Experimentation
Explorer
Discovery
Observation Question
Curiosity
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Why Experimentation
http://www.obsidiandawn.com/tutorials/skintones/skintones.htm
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Why Experimentation
http://www.galileolibrary.com/artpaints/vangogh-sunflowers_on_green.jpg
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Why Experimentation
http://www.its.caltech.edu/~atomic/snowcrystals/movies/movies.htm
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Why Experimentation
http://www.bmumford.com/photo/naturetl/index.html
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[Why Experimentation]
http://www.wetasschronicles.com/UnderwaterNukeTest.wmv
See also http://www7.nationalgeographic.com/ngm/0508/feature6/multimedia.html
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Why Experimentation
Engine Test
Boeing Gallery: http://www.boeing.com
(Different)
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Goals and Roles of Experiment
Goal: Extract knowledge and useful information regarding the
system of interest with reasonable justification.
new knowledge,
used in product design and development,
qualify a product according to some standard,
falsify/verify a theory, call for a new theory,
hint toward the structure or mathematical form of a theory,
etc.
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Some Focuses of The Course
Observation and Question
Logic / Reasoning
Three Main Components
Problem Statement / Objective
Approach
Result / Conclusions
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Structure of An Experiment
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Knowledge and Structure of An Experiment
Problem Statement/Objective
Justification Method
Supporting Evidences
Reasonably Justified Results/Conclusions
Observation / Ask The Right Question
Premise: (Propositional) Knowledge is a statement (about something)
that we have a reasonable justification
to believe that it is reasonably true.
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Reporting of Experimental Results
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Report: Conclusions
What are conclusions?
Conclusions are convictions based on evidence.
From The American Institute of Physics: AIP Style Manual, Fourth Edition:
http://www.aip.org/pubservs/style/4thed/toc.html
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In conclusion: Why experiment?
To put simply,
We can learn more.
We can develop more.
We can discover more.