Conference Session

Teaching Dynamics

Collection

2009 Annual Conference & Exposition

Authors

Ali Mohammadzadeh, Grand Valley State University; Salim Haidar, Grand Valley State University

Tagged Divisions

Mechanics

2Solution Page 14.929.5To find the damped natural frequencies of the system one sets: ms 2 + (c1 + c 2 ) s + k1 + k 2 (c 2 l 2 − c1l1 ) s + k 2 l 2 − k1l1 det  2 2 2 2 2  = 0.  (c 2 l 2 − c1l1 ) s + k 2 l 2 − k1l1 Js + (l 2 c 2 + l1 c1 ) s + l 2 k 2 + l1 k1 With the aid of MATLAB and using given system’s parameters, one finds the followingdamped natural frequencies with their corresponding damping ratio and naturalfrequencies. ωd 1 = 4.9676rad / s

Conference Session

Teaching Mechanics of Materials and General Mechanics Education

Collection

2009 Annual Conference & Exposition

Authors

Bridget Wadzuk, Villanova University; David Dinehart, Villanova University; Edward Glynn, Villanova University; Shawn Gross, Villanova University; Frank Hampton, Villanova University

Tagged Divisions

Mechanics

questionwhether or not the module content best represents the BOK.As this step is the most practical part of the methodology to develop a curriculum, manyquestions about the details of teaching a course like this arise. Some of the modules may not bein accord with the traditional way the topics within the module have been taught. Thus, there arequestions about which examples to use, which textbooks or supplemental material should beused, and which professor(s) will teach the modules. Questions may also arise when combiningtopics in a module that have been taught individually either in a lecture or laboratory setting.This step requires time, patience and communication with those responsible for teaching thematerial and making the semester schedule

Conference Session

Teaching Statics

Collection

2009 Annual Conference & Exposition

Authors

Sue Rosser, Georgia Institute of Technology; Laurence Jacobs, Georgia Institute of Technology; Janet Murray, Georgia Institute of Technology; Wendy Newstetter, Georgia Institute of Technology; Christine Valle, Georgia Institute of Technology

Tagged Divisions

Mechanics

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 14.779.240% 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 engineering peaked in 1999-2000 and have trended downward since then 5. Arecent study conducted by Engineers Dedicated to a Better Tomorrow used the NSFWebCASPAR database to document that although

Conference Session

Teaching Mechanics of Materials and General Mechanics Education

Collection

2009 Annual Conference & Exposition

Authors

Ing-Chang Jong, University of Arkansas; William Springer, University of Arkansas

Tagged Divisions

Mechanics

) 6EClearly, the distortion energy per unit volume is ud= u − u vWe obtain that 1 +ν  (σ 1 − σ 2 ) 2 + (σ 2 − σ 3 ) 2 + (σ 3 − σ 1 ) 2  ud =   (10) 3E  2 Note that ud = 0 if σ= 1 σ= 2 σ 3 ; i.e., no distortion exists in hydrostatic state of stress.For simple tensile test of a ductile material, we have σ 1 = S y , σ= 2 σ

Conference Session

Teaching Statics

Collection

2009 Annual Conference & Exposition

Authors

John Dannenhoffer, Syracuse University; Joan Dannenhoffer, State University of New York, Morrisville

Tagged Divisions

Mechanics

= 2.59 NARCHIMEDES checks the student’s answer to ensure that it is correct numerically (at least towithin 1%), that the user has used the correct number of significant digits, and the appropriateunits are used.The completed solution for this problem is shown in Figure 3.Types of checks performedIn the discussion above, examples of the type of checks that ARCHIMEDES performs weregiven. The other error messages that ARCHIMEDES produces include: • Errors with the FreeBody diagram o At least one free body must be completed. o At least one of the FreeBody diagrams must have all of its reactions specified. o The reaction(s) at Point is/are incorrect. o Name is used for both a force and a couple

Conference Session

Teaching Mechanics of Materials and General Mechanics Education

Collection

2009 Annual Conference & Exposition

Authors

Henry Christiansen, Brigham Young University; Steven Benzley, Brigham Young University; Spencer Guthrie, Brigham Young Univeristy; Gaurab Paudel, Brigham Young University

Tagged Divisions

Mechanics

70 n s e ne g ig 7. g. l P ip

Conference Session

Teaching Mechanics of Materials and General Mechanics Education

Collection

2009 Annual Conference & Exposition

Authors

Habib Sadid, Idaho State University; Richard Wabrek, Idaho State University

Tagged Divisions

Mechanics

Materials, Oxford University Press, New York, NY, 2002.4. Beer, F. P., Johnston, E. R. and DeWolf, J. T., Mechanics of Materials, Fifth Edition, McGraw Hill, 2008.5. Hibbeler, R.C., Mechanics of Materials, Seventh Edition, Prentice Hall, Upper Saddle River, NJ, 2007.6. Gere, J. M. and Goodno, B. J., Mechanics of Materials, Seventh Edition, CL-Engineering, 2008.7. Bedford, A. and Liechti, K.M., Mechanics of Materials, Prentice Hall, Upper Saddle River, NJ, 2000.8. Riley, W.F., Sturges, L.D. and Morris, D.H., Mechanics of Materials, Fifth Edition, John Wiley & Sons, New York, NY, 1999.9. Wempner, G., Mechanics of Solids, PWS Publishing Company, Boston, MA, 1995.10. Timoshenko, S. P. and Gere, J. M., Mechanics of Materials, Fourth

Conference Session

Teaching Dynamics

Collection

2009 Annual Conference & Exposition

Authors

Robert Hildebrand, Lake Superior State University; Wael Mokhtar, Grand Valley State University; Steve Bryan, Continental Automotive Systems

Tagged Divisions

Mechanics

for a versatile graduate, capable of working professionally in various vehicle-related industries, but graduates of the options discussed are too few as yet to make anyquantitative assessment.Bibliography1. Hsu, Tai-Ran. “Development of an Undergraduate Curriculum in Mechatronics Systems Engineering” Journal of Engineering Education, Apr.1999, p.173 –1792. Landsberger S, Ellzey J, Hull B, Rosinski J, and Wright J. “Undergraduate Degree with an Emphasis in Nuclear and Energy Engineering for the University of Texas of the Permian Basin”, ASEE AC 2007-6233. Mokhtar W, Duesing P, and Hildebrand R, “Integration of the Project-Based Learning (PBL) into the Mechanical Engineering Programs”, International Journal of Learning, Common

Conference Session

Teaching Statics

Collection

2009 Annual Conference & Exposition

Authors

Anna Dollar, Miami University; Paul Steif, Carnegie Mellon University

Tagged Divisions

Mechanics

, Miami University, Oxford, OH 45056 phone: (513) 529 - 0714 ; fax: (513) 529-0717; e-mail: dollar@muohio.eduPaul Steif, Carnegie Mellon University Paul S. Steif is a professor of Mechanical Engineering at Carnegie Mellon University. He received a Sc.B. in engineering from Brown University (1979) and M.S. (1980) and Ph.D. (1982) degrees from Harvard University in applied mechanics. He has been active as a teacher and researcher in the field of engineering mechanics. In particular, Dr. Steif develops and implements new approaches and technologies to measure student understanding of engineering and to improve instruction. Address: Department of Mechanical Engineering, Carnegie Mellon

Conference Session

Teaching Dynamics

Collection

2009 Annual Conference & Exposition

Authors

Benson Tongue, University of California, Berkeley

Tagged Divisions

Mechanics

take place evenin the face of large enrollments.References [1] Bloom, B.S. (ed), (1956) Taxonomy of Educational Objectives: Cognitive Domain, White Plains, NY, Longman. [2] Bowman, J.S. (1979), Lecture-Discussion Format Revisited, Improving College and University Teaching 27, pp 25-27. [3] Duck, S. and McMahan, D.T. (2008) The Basics of Communication, SAGE. [4] Higbee, K.L. (2001) Your Memory : How It Works and How to Improve It, 2nd Ed, Da Capo Press. [5] Lowman, J. (1995), Mastering the Techniques of Teaching, 2nd Ed, San Francisco, Jossey-Bass. [6] McKeachie, W.J. and Svincicki, M. (2006), Teaching Tips, Houghton Mifflin Company, NY. [7] Neisser, U., Hyman, I. (1999