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22-Mec-A2 Kinematics and Dynamics of Machines: May 2017

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

  1. Question 1 Symmetric planar mechanism — redundancy, mobility, mechanical advantage
  2. Question 2 Radial cam with flat-faced follower — minimum-acceleration program
  3. Question 3 Two-stage planetary gear train — design for 1500→39 rpm
  4. Question 4 Four-bar shaking force and balancing
  5. Question 5 Base-excited quarter-car — steady-state amplitudes
  6. Question 6 Torsional vibration of a 3-rotor fixed–fixed shaft

Start with Question 1 →

Paper: National Exams — May 2017 · 16-Mec-A2 Kinematics and Dynamics of Machines · 3 hours, open book · Answer five of six questions (Part A mechanisms/machine dynamics Q1–4, Part B vibration Q5–6). Marks: 20 each. All six questions are solved here.

Reference texts (subject). R. L. Norton, Design of Machinery, 6th ed. (mobility Ch. 2, cams Ch. 8, epicyclic/compound trains §9.6–9.9, balancing Ch. 13); Uicker, Pennock & Shigley, Theory of Machines and Mechanisms, 5th ed.; C. E. Wilson & J. P. Sadler, Kinematics and Dynamics of Machinery, 3rd ed.; S. S. Rao, Mechanical Vibrations, 6th ed. (Part B, Ch. 3 base excitation, Ch. 6 multi-DOF torsional).