SYLLABUS FOR SEMESTER - IV ( KOM)

09ME404                  KINEMATICS OF MACHINERY                                                              

OBJECTIVE:   

• To understand the layout of linkages in the assembly of a system/machine.

·         To study the principles involved in assessing the displacement, velocity and acceleration at any point in a link of a mechanism

• To analyze the motion resulting from a specified set of linkages in a mechanism

1. BASICS of Mechanisms                                                                                           

Terminology and Definitions-Degree of Freedom Mobility-Kutzbach criterion-Grashoff's law-Kinematic Inversions of 4-bar chain and slider crank chains-Mechanical Advantage-Transmission angle-Description of common Mechanisms-Single, double and offset slider mechanisms - Quick return mechanisms - Ratchets and escapements - Indexing Mechanisms - Rocking Mechanisms - Straight line generators-Design of Crank-rocker Mechanisms.

2. KINEMATICS                                                                                               

Displacement, velocity and acceleration - analysis in simple mechanisms - Graphical Method velocity and acceleration polygons - Kinematic analysis by Complex Algebra methods-Vector Approach, Computer applications in the kinematic analysis of simple mechanisms-Coincident points- Coriolis Acceleration.

3. KINEMATICS of CAM                                                                     

Classifications - Displacement diagrams-parabolic, Simple harmonic and Cycloidal motions - Layout of plate cam profiles - Derivatives of Follower motion - High speed cams - circular arc and tangent cams - Standard cam motion - Pressure angle and undercutting.

4. GEARS                                                                                                                           

Spur gear Terminology and definitions-Fundamental Law of toothed gearing and involute gearing-Inter changeable gears-gear tooth action – Terminology - Interference and undercutting-Non standard gear teeth- Helical, Bevel, Worm, Rack and Pinion gears (Basics only)-Gear trains-Parallel axis gear trains-Epicyclic gear trains-Differentials

5. FRICTION                                                                                      

Surface contacts-Sliding and Rolling friction - Friction drives – Friction in screw threads - Friction clutches - Belt and rope drives, Friction aspects in Brakes – Friction in vehicle propulsion and braking 

 

TEXT BOOKS

1.    Rattan S.S, “Theory of Machines”, Tata McGraw Hill Publishing Company Ltd., New Delhi, 1998.  

2.    Shigley J.E and.Uicker J.J, “Theory of Machines and Mechanisms”, McGraw-Hill, Inc, 1995.

3.    Ghosh, A and Mallick, A.K, “Theory of Mechanisms and Machines”, East-West Pvt. Ltd., New Delhi, 1988.

4.    Singh. V.P, “Theory of Machines”,Dhanpat Rai and Co. Pvt Ltd, Delhi, 2008.

  REFERENCES

1.    Thomas Bevan, “Theory of Machines”, CBS Publishers and Distributors, 1984.

2.    Rao J.S and Dukkipati R.V, “Mechanism and Machine Theory”, Wiley-Eastern Ltd., New Delhi, 1992.