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22-Mec-A2 Kinematics and Dynamics of Machines: May 2014

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Six-bar mechanism — instant centres & mechanical advantage
  2. Question 2 Cycloidal radial cam — motion program, profile & pressure angle
  3. Question 3 Compound planetary gear reduction — output speed
  4. Question 4 Four-bar mechanism — shaking-force balancing
  5. Question 5 Plastic impact onto a spring–damper — free vibration
  6. Question 6 Two-DOF forced vibration — steady-state response

Start with Question 1 →

National Exams, May 2014 — 07-Mec-A2, Kinematics and Dynamics of Machines. 3 hours, OPEN BOOK. Six questions of 20 marks each; candidates answer any FIVE. All SIX are solved in full below (Part A — mechanisms and machine dynamics, Q1–Q4; Part B — mechanical vibration, Q5–Q6).

Reference texts: R. L. Norton, Design of Machinery, 5th ed. (instant centres and mechanical advantage, cam design, gear-train kinematics, linkage balancing); S. S. Rao, Mechanical Vibrations, 6th ed. (impulsive loading, single- and two-degree-of-freedom free and forced response); J. E. Shigley & C. R. Mischke, Mechanical Engineering Design (planetary-train cross-check).