TOM (Diploma Mechanical Engineering 5th)

1. Simple Mechanisms (08 hrs)

1.1 Introduction to link, kinematic pair, lower and higher pair, Kinematic chain,

mechanism, Inversions.

1.2 Different types of mechanisms (with examples )

2. Power Transmission (16 hrs)

2.1 Introduction to Belt and Rope drives

2.2 Types of belt drives and types of pulleys

2.3 Concept of velocity ratio, slip and creep; crowning of pulleys (simple numericals)

2.4 Flat and V belt drive: Ratio of driving tensions, power transmitted, centrifugal tension,

and condition for maximum horse power (simple numericals)

2.5 Different types of chains and their terminology

2.6 Gear terminology, types of gears and their applications; simple and compound gear

trains; power transmitted by simple spur gear

3. Flywheel (10 hrs)

3.1 Principle and applications of flywheel

3.2 Turning - moment diagram of flywheel for different engines

3.3 Fluctuation of speed and fluctuation of energy - Concept only

3.4 Coefficient of fluctuation of speed and coefficient of fluctuation of energy

3.5 Simple numerical problems on fluctuation of speed and fluctuation of energy

4. Governor (12 hrs)

4.1 Principal of governor

4.2 Simple description and working of Watt, Porter and Hartnel governor (simple

numericals based on watt governor)

4.3 Hunting, isochronism, stability, sensitiveness of a governor

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5. Balancing (08 hrs)

5.1 Concept of balancing

5.2 Introduction to balancing of rotating masses (simple numericals)

5.3 Simple problems related to several masses rotating in different planes

6. Vibrations (10 hrs)

6.1 Concept of vibrations and its types - longitudinal, transverse and torsional vibrations

(simple numericals)

6.2 Damping of vibrations

6.3 Causes of vibrations in machines, their harmful effects and remedies