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ME 154

Mechanical Engineering Design

Course Outline

Weekly Topics

  1. Course organization, Introduction, Linkages, Degree of freedom, Kinematics pairs, Design project discussion. (Ch 1&2 in DOM)
  2. 4-Bar mechanism, mechanism classification, transmission angle, graphical synthesis; Motion generation mechanism (two & three positions), mechanical advantage, toggle positions. (Ch 3 in DOM)
  3. Graphical synthesis: Path generation mechanism (three positions), synthesis with prescribed timing, adding Dyad to mechanism, synthesis of a quick-return mechanism. (Ch 3 in DOM)
  4. Analytical synthesis: complex polar notation, closed loop vector equation, motion generation mechanisms (two to five position). Design project discussion. (Ch 4&5 in DOM)
  5. Analytical synthesis: function & path generation mechanisms, analytical analysis; Position, Velocity and Acceleration. Example problems. (Ch 4&5 in DOM)
  6. Forces on mechanisms: Matrix method, graphical method, project discussion, example problems. 
    (Ch 6, 7, 11 in DOM)
  7. Review of stress & strain, principal stresses. (Ch 4 in MD)
  8. Review of combined stresses: bending, torsion, column design. (Ch 4 in MD)
  9. Design of thin & thick walled cylinders, press and shrink fits, material selection for design. (Ch 2&4 in MD)
  10. SPRING BREAK
  11. Failure theories for static loads: maximum shear stress theory, the distortion-energy theory, modified Coulomb-Mohr theory (brittle materials). (Ch 5 in MD)
  12. The concept of stress concentration, Failure theory for cyclic loads (Fatigue), high cycle fatigue; S-N curve. (Ch 4&6 in MD)
  13. Effect of mean stress on fatigue life (Modified Goodman Diagram), combined stresses, example problems. (Ch 6 in MD)
  14. Surface failure, contact stresses, design project discussion. (Ch 7 in MD)
  15. Bolted joint design: thread standards, stresses, bolt and member stiffness. (Ch 14 in MD)
  16. Static & fatigue stress analysis, bolted joints in tensile and shear loads, bolt preload and torque, design considerations. (Ch 14 in MD).  Design project presentation and demonstration, course review - Project report due date.

 

 

 
This web page is under the supervision of Dr. Raymond K. Yee,  professor of the Mechanical and Aerospace Engineering Department at San Jose State University.  For information, he can be reached at (408) 924-3935,  email: rkyee@email.sjsu.edu