Theory of Machines

Theory of Machines (TOM) is a core subject in Mechanical Engineering (Diploma & Degree) that explains how machine parts move, interact, and transmit motion and power. It builds the foundation for designing efficient, safe, and reliable machines used in production and manufacturing.

• Objectives of the Subject
  • Understand motion of machine components
  • Analyze velocity, acceleration, and forces
  • Study mechanisms and kinematic chains
  • Learn power transmission systems
  • Apply concepts to real industrial machines
• Syllabus Overview / Main Units

1. Introduction to Mechanisms
   • Machine vs Mechanism
   • Links, Pairs, and Chains
   • Types of kinematic pairs
   • Degree of freedom (mobility)
2. Kinematic Chains & Inversions
   • Four-bar chain
   • Single slider crank chain
   • Double slider crank chain
   • Practical applications of inversions
3. Velocity & Acceleration Analysis
   • Relative velocity method
   • Velocity and acceleration diagrams
   • Motion of links in mechanisms
4. Cams and Followers
   • Types of cams
   • Types of followers
   • Displacement diagrams
   • Applications in engines and automation
5. Gears & Gear Trains
   • Types of gears (spur, helical, bevel, worm)
   • Simple, compound, and epicyclic gear trains
   • Velocity ratio and torque transmission
6. Flywheel & Governors
   • Fluctuation of energy
   • Coefficient of fluctuation of speed
   • Types of governors (centrifugal, inertia)
   • Speed regulation in engines