1993 Catalog Data: 14:650:342. Design of Mechanical Components. 3 Credits.

Design philosophy; stress and deflection analysis; energy methods; theories of failure; fatigue; bearings; design of such mechanical elements as springs, weldments and gears.

Prerequisites: 14:650:291 (Mech. of Materials); 14:655:222 (Dynamics).

Textbook: Fundamentals of Machine Components Design, 2nd Edition, by R. C. Juvinall, and K.M. Marshek, John Wiley, New York, 1991.

Reference: Mechanical Engineering Design, 3rd Ed., by J.E. Shigley, McGraw-Hill, 1977.

Coordinator: Haim Baruh, Associate Professor of Mechanical Engineering

Goals:

This course is oriented to prepare students in developing design methodology. There are two parts to the course: (i) to gain insight and understand the fundamental knowledge of stress, deflection and failure theories in relations to machine elements, and (ii) to investigate the specific machine components such as springs, gears, shafts, and bearings using the information from the first part. Engineering practice, standard database and engineering design/analysis are discussed.

Prerequisites by topic:

1. Stress-strain relationship, Mohr circle method
2. Beam and torsion theories
3. Development of free body diagrams and writing force and moment balances.

Topics:

1. Fundamental topics: load analysis, stress-strain relationship, energy and power. (3 classes)
2. Shear, torsion and bending stresses, biaxial and principal stresses, stress concentration (2 classes)
3. Curved beams (1 class)
4. Castigliano's method and columns (3 classes)
5. Static and fatigue failures (4 classes)
6. Threaded Fasteners (1 class)
7. Springs (2 classes)
8. Sliding and Rolling-element Bearings (2 classes)
9. Gears and Gear Trains (4 classes)
10. Shafts, clutches and brakes, belts, welding (3 classes)
11. Hourly examinations (2) and review (3 classes)
12. Final Examination

Homework: Usually six to seven homework sets are assigned.

Design Projects:

Usually, one or two are assigned. Commonly assigned projects include designing of a tow truck module, analysis and component selection of a hand-held rotary sander, and selection of material and manufacturing methods for machine components using several of the design criteria. Projects and homework constitute 15-20% of the overall grade.

ABET category content as estimated by faculty member who prepared this course description:

Engineering Design 67% or 2 credits

Engineering Science 33% or 1 credit.

Prepared by Dr. Haim Baruh March 1994