Displaying all 19 results
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- Anything New in Dynamics?
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- 2008 Annual Conference & Exposition
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- Thomas Nordenholz, California Maritime Academy
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- Mechanics
measure angular velocity yabout the z direction (pointing out of the page). Page 13.1054.4ii Background on accelerometers can be found in 5.iii A rate gyro works by measuring Coriolis acceleration. For more on rate gyros, see 6. y Path Traversed by Point P a2 ay s a1 s
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- Anything New in the Mechanics of Materials?
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- 2008 Annual Conference & Exposition
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- Ing-Chang Jong, University of Arkansas
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3 3 -S U MAc ? 0 : / MAc / Ä L - 2 L Õ © PL ? 0 MAc ? / 5PL MAc ? 5PL S Å 3 Ö 2 EI 6 EI 6 EIBy rules 9 and 10 in Section II, the slope sA and the deflection yA at the free end A of the actual cbeam in Fig. 3 are, respectively, given by the “shearing force” VA and the “bending moment” cM A at the fixed end A of the conjugate beam in Fig. 4. We write PL2 3 sA ? VA c ? Acy ? yA ? MAc ? / 5PL 2 EI
- Conference Session
- Enhancing Mechanics Instruction
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- 2008 Annual Conference & Exposition
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- Gary L. Gray, Pennsylvania State University; Francesco Costanzo, Pennsylvania State University
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- Mechanics
cos m/s, 0 s ≤ t ≤ 5π s. 5 (b) the distance STOP STOP between the two stop signs; and 20 (c) the acceleration at 15
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- Mechanics and the Internet
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- 2008 Annual Conference & Exposition
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- Shahnam Navaee, Georgia Southern University
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- Mechanics
area (Q) can be obtained using the following equation: b(h 2 / 4 / y 2 )Q? (25) 2Determination of the Principal Stresses:A square differential element of beam subjected to the normal stresses sx and sy and a shearingstress txy is shown in Figure 4. To develop the expression for the principal normal and shearingstresses acting on the element of the beam, the equation for the normal stress s and shearingstress t on an inclined plane with an angle of inclination of s are obtained first. uy A v xy ux
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- Enhancing Mechanics Instruction
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- 2008 Annual Conference & Exposition
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- Phillip Cornwell, Rose-Hulman Institute of Technology
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13.1382.6SDOF system are shown in -1Figure 4. From the swept sine -1.5 -2 0 10 20 30 40 50 60 70 80 Time (s) Figure 4. Typical time response for a swept sin inputresults the FRF can be calculated in Matlabusing the built-in command called“tfestimate.” A typical FRF generated thisway is shown in Figure 5.This lab was also used to begin
- Conference Session
- Anything New in Dynamics?
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- 2008 Annual Conference & Exposition
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- Brian Self, California Polytechnic State University; Charles Birdsong, California Polytechnic State University; Eileen Rossman, California Polytechnic State University
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on Solidworks and calculated themass properties using the software. Representative graphs for the linear and angularaccelerations at the head are shown in Figure 3. 100 50 0 Accel (ft/s/s) -50 -100 x -150 y z -200
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- Anything New in the Mechanics of Materials?
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- 2008 Annual Conference & Exposition
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- Rani Sullivan, Mississippi State University; Masoud Rais-Rohani, Mississippi State University
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unit Fig. 2 (a) Description of BTS (b) students testing a simply-supported beam.Student GroupsThe two different sections of the mechanics of materials course taught by the first author in fall2007 offered a natural division of students into separate experimental and control groups. Basicstatistical analysis was used to compare the level of readiness in the two student populationsbased on their grades in the prerequisite course, Statics. Besides calculating the mean ( X ) andstandard deviation (S) values of the grades in the two groups, a t-test was also performed basedon a 95% confidence level7. The t-test helps to determine whether the difference between the twostudent groups (the mean values) is statistically significant. In a
- Conference Session
- Enhancing Mechanics Instruction
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- 2008 Annual Conference & Exposition
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- Francesco Costanzo, Pennsylvania State University; Gary L. Gray, Pennsylvania State University
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) Kinematic Equations Since the crate doesn’t slip relative to the truck, we have (aA )x = (aB )x and (aA )y = (aB )y = 0. Now, using the constant acceleration eqns, we can find the acceleration of the truck, that is, (vB )2x = (vB0 )2x + 2(aB )x (xB − xB0 ) Profs. Gray & Costanzo (Penn State) Lecture 12: N-E Eqns: Examples February 12, 2007 7 / 20 Example: Problem 3.3 (continued) Plugging in numbers: 0 = (88)2 + 2(aB )x (350) ⇒ (aB )x = −11.06 ft/s2 . where I have used the fact that (vB0 )x = 60 mph = 88 ft/s. Computation
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- Mechanics Education Programs and Projects
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- 2008 Annual Conference & Exposition
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- Michael Hennessey, University of St. Thomas
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: x ? rh , rFr ? I rh%%, rF f ? I f h%% (3) and: / F - W sin s ? m%x% (4) where F ? Fr - F f and Page 13.1095.9 Fig. 7 Vehicle coasting down an incline. W cos s ? Wr - W f ? mg cos s .Substitution and rearrangement yields the fundamental equation describing the vehicle’s motion: g sin s %x% ? »C (5) iwhere i ? 1 - I
- Conference Session
- Anything New in the Mechanics of Materials?
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- 2008 Annual Conference & Exposition
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- Arturo Fuentes, University of Texas-Pan American; Stephen Crown, University of Texas-Pan American; Bob Freeman, University of Texas-Pan American
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demonstrate to students that their education is the process of buildingan integrated knowledge base that will ultimately prepare them for applying that knowledge intheir career.Bibliography1. Bransford, J. D., Brown, A. L., & Cocking, R. R. (Eds.). How people learn: Brain, mind, experience,andschool. Washington, DC: National Academy Press (1999)..2. Schwartz, D. L., Brophy, S., Lin, X., & Bransford, J. D. Software for managing complex learning: Examplesfrom an educational psychology course. Educational Technology Research and Development,47(2): 39-59,1999.Every reference must be listed and numbered.3. Watai, L. L., Brodersen, A. J., & Brophy, S. Challenge-based Lab Instruction Improves Interaction in PhysicalElectronic Circuit Labs, 2005
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- Mechanics and the Internet
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- 2008 Annual Conference & Exposition
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- Siamak Faridani, University of Oklahoma; Kurt Gramoll, University of Oklahoma
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- Mechanics
AC 2008-2116: ONLINE INTERACTIVE MEMS EXPERIMENTS ANDWEB-BASED CURRICULUMSiamak Faridani, University of Oklahoma S. Faridani is a PhD student at the University of Oklahoma.Kurt Gramoll, University of Oklahoma K. Gramoll is the Hughes Centennial Professor of Engineering and Director of the Engineering Media Lab at the University of Oklahoma. Dr. Gramoll received his B.S. degree in Civil Engineering and M.S. degree in Mechanical Engineering, both from the University of Utah and received his Ph.D. in Engineering Science and Mechanics from Virginia Tech. He has developed and published several CDs and web-based sites for engineering education
- Conference Session
- Mechanics and the Internet
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- 2008 Annual Conference & Exposition
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- Calvin Ashmore, Georgia Institute of Technology; Bo Yeon Lee, Georgia Institute of Technology; Geoff Thomas, Georgia Institute of Technology; Daniel Upton, Georgia Institute of Technology; Sneha Harrell, UC Berkeley; Christine Valle, Georgia Institute of Technology; Wendy Newstetter, Georgia Institute of Technology; Janet Murray, Georgia Institute of Technology; Laurence Jacobs, Georgia Institute of Technology; Sue Rosser, Georgia Institute of Technology
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number of international studentsstudying and remaining to work in the United States engineering workforce after graduation 4.African American, Hispanic and other racial/ethnic minorities make up 6% of the S&Eworkforce, and women make up 25%. These percentages contrast sharply with thedemographics of these groups in the current overall population and workforce; by 2020 over Page 13.778.240% of college-aged students will be racially/ethnically diverse3.Currently, the U.S. engineering workforce remains 90% white and male; engineering, inparticular, has not attracted women and URMs. Baccalaureate degrees received by both URMsand women in
- Conference Session
- Anything New in the Mechanics of Materials?
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- 2008 Annual Conference & Exposition
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- Daniel Magda, Weber State University
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- Mechanics
Transactions, Vol. 80, May, 1958, pp. 929-940.5. Malkin, S. and Anderson, R.B., "Thermal Aspects of Grinding," Journal of Engineering for Industry, Vol. 96, No. 4, Nov 1974, pp 1177-1183.6. Malkin, S., "Surface Temperatures and Workpiece Burn," Journal of Engineering for Industry, Vol. 96, No. 4, Nov. 1974, pp. 1184-1197.7. Yonetani, S. and Notoya, H., "Grinding Residual Stress in Heat Treated High Hardness Steels," Journal of Japan Institute of Metals, June 1984.8. EL-Helieby, S.O. and Rowe, G.W ., "Influence of Surface Roughness and Residual Stress on Fatigue Life of Ground Steel Components," Metals Technology, Vol. 7, June, 1980, pp. 221-225.9. Leskovar, P., "Investigations of Surface Integrity of W orkpieces and Tools
- Conference Session
- Mechanics Education Programs and Projects
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- 2008 Annual Conference & Exposition
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- Sridhar Condoor, Saint Louis University, Parks College of Eng.; Sanjay Jayaram, Saint Louis University, Parks College of Eng.; Lawrence Boyer, Saint Louis University
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- Mechanics
13.845.12Engineering Education, Oct., 2005, pp. 363-371.6. Steif, P.S. and Dollár, A., 2007, “An interactive web-based statics course,” Proceedings of the 2007 AmericanSociety for Engineering Education Annual Conference & Exposition.7. Steif, P.S. and Dollár, A., 2003, “A new approach to teaching and learning Statics,” Proceedings of the 2003American Society for Engineering Education Annual Conference and Exposition.8. Dollár, A. and Steif, P.S., 2003, “Learning modules for the Statics classroom,” The International Journal ofEngineering Education, Vol. 22(2), pp. 381-392.9. Paul S. Steif, etal, “Work in Progress: Improving Problem Solving Performance in Statics through Body-CentricTalk”, 36th ASEE/IEEE Frontiers in Education Conference, Session S2D-1
- Conference Session
- Anything New in Dynamics?
- Collection
- 2008 Annual Conference & Exposition
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- Geoff Rideout, Memorial University of Newfoundland
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- Mechanics
crank lengthB3C3 1 m coupler length 6ksA, ksB, 10 N/m parasitic stiffnesses, points A, B, C, DksC, ksDRsA, RsB, 200 N-s/m parasitic damping, points A, B, C, DRsC, RsDT(t) 10 N-m input torqueb 2 N-s/rad pin C rotational damping constantc 5 N-s/m slider viscous damping constant Page 13.1168.14Appendix B – Student Questionnaire and ResultsQuestionnaire regarding ENGI7945 Machine DynamicsPossible AnswersStrongly agree (5) Agree (4) Neutral (3) Disagree(2
- Conference Session
- Mechanics Education Programs and Projects
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- 2008 Annual Conference & Exposition
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- Christopher Papadopoulos
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- Mechanics
. “Development of a Concept Inventory for Strength of Materials”, 33rd ASEE/IEEE Frontiers in Education Conference, 2003.28. Richardson, Jim. “Concept Inventories: Tools for Uncovering STEM Students’ Misconceptions”, AAAS, 2005.29. Rosati, Peter. “Mechanics Texts are for Students”, Proceedings of the ASEE Annual Conference & Exposition, 1996.30. Sjøberg, S. Lie. Technical Report 81-11, University of Oslo, 1981.31. Steif, Paul. “An Articulation of the Concepts and Skills Which Underlie Engineering Statics”, Proceedings of the 34th ASEE/IEEE Frontiers in Education Conference, 2004.32. Steif, Paul S. and John A. Dantzler. “A Statics Concept Inventory: Development and Psychometric Analysis”, Journal of Engineering Education, October
- Conference Session
- Enhancing Mechanics Instruction
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- 2008 Annual Conference & Exposition
- Authors
- Gangbing Song, University of Houston; Mithun Singla, University of Houston; Christy Chang, University of Houston; Richard Bannerot, University of Houston
- Tagged Divisions
- Mechanics
Free vibration 0.4 0.3 0.2 P os ition error 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 5 10 15 20 25 Time(S) Figure 6: Comparison of Beam in Free Vibration
- Conference Session
- Mechanics Education Programs and Projects
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- 2008 Annual Conference & Exposition
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- Bridget Wadzuk, Villanova University; David Dinehart, Villanova University; Edward Glynn, Villanova University; Shawn Gross, Villanova University; Frank Hampton, Villanova University
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University MGP - Majority graduate/professionalSpec - Special Focus InstitutionBibliography1. Kraige, G. and D.H. Morris (2000), “Recent curriculum changes in engineering science and mechanics atVirginia Polytechnic Institute and State University.” The International Journal of Engineering Education, 16:5:436-440.2. Klosky, J., D. Hains, T. Johnson, J. Bruhl, J.B. Erickson, and J. Richards (2007), “An integrated approach forengineering mechanics and design.” Proceedings of the 2007 American Society for Engineering Education AnnualConference and Exposition.3. Nocito-Gobel, J., S. Daniels, G. Broderick, M. Collura, and R. Stanley (2007), “Civil and mechanicalengineering students learning mechanics in a multidisciplinary engineering
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- Mechanics Education Programs and Projects
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- 2008 Annual Conference & Exposition
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- Cliff Lissenden, Pennsylvania State University; Nicholas Salamon, Pennsylvania State University; Andrew Miller, Pennsylvania State University
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- Mechanics
sheet. It is recommended that the project assignment sheet(s) be used as a cover. The report must include inorder the following ten sections; some sections include subsections.1. Project Drawings, Parts List and Bill of Materials (15%). These summarize and communicate your design and must be sufficient to fabricate the design. Drawings must be roughly to scale and must include (1) a rendering of your design, (2) an isometric assembly with components ‘called-out’ and correlated by number or part name with the parts list, (3) details to clarify component connections and joints and (4) other details as necessary. Use professional conventions. Include all dimensions. Do not draw details of standard ‘off-the- shelf’ hardware