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2142-391 Engineering Mechanical Laboratory

2142-391 Engineering Mechanical Laboratory. Instructors. 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)

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2142-391 Engineering Mechanical Laboratory

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  1. 2142-391 Engineering Mechanical Laboratory

  2. Instructors 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 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

  3. Course Objectives • 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.

  4. Course Description 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

  5. Time and Place 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.

  6. 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) Experiments and Instructors

  7. Evaluation and Grading 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.

  8. Class Conduct and Schedule • Each section does 4 laboratories • Each laboratory: 2 weeks of laboratory + 1 week of presentation

  9. Schedule for Each Group & Rotation Monday Sections (1-6) Friday Sections (7-13)

  10. Textbooks and Class Web 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.

  11. Experimentation Curiosity Observation Question Discovery Explorer

  12. Why Experimentation http://www.obsidiandawn.com/tutorials/skintones/skintones.htm

  13. Why Experimentation http://www.galileolibrary.com/artpaints/vangogh-sunflowers_on_green.jpg

  14. Why Experimentation http://www.its.caltech.edu/~atomic/snowcrystals/movies/movies.htm

  15. Why Experimentation http://www.bmumford.com/photo/naturetl/index.html

  16. [Why Experimentation] http://www.wetasschronicles.com/UnderwaterNukeTest.wmv See also http://www7.nationalgeographic.com/ngm/0508/feature6/multimedia.html

  17. Why Experimentation (Different) Engine Test Boeing Gallery: http://www.boeing.com

  18. 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.

  19. Some Focuses of The Course • Observation and Question • Logic / Reasoning • Three Main Components • Problem Statement / Objective • Approach • Result / Conclusions

  20. Structure of An Experiment

  21. Knowledge and Structure of An Experiment Observation / Ask The Right Question Reasonably Justified Results/Conclusions Supporting Evidences Justification Method Problem Statement/Objective Premise: (Propositional) Knowledge is a statement (about something) that we have a reasonable justification to believe that it is reasonably true.

  22. Reporting of Experimental Results

  23. 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

  24. In conclusion: Why experiment? To put simply, We can learn more. We can develop more. We can discover more.

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