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11M402 THEORY OF MACHINES 1 Unit I Basics of Mechanisms 9 Hours Basic concepts of Link, Pair, Chain, Mechanism, Machine and Structure, Degree of freedom, Mobility of mechanism – Kutzbach Criterion, Grashofs Law – Inversions of mechanisms – Four bar and Slider Crank – Mechanical advantage – Transmission Angle – Description of some common mechanisms – Straight line generators, Dwell mechanisms, Ratchets and Escapements, Universal Joint – Basic structures of Robot Manipulators (serial & parallel)

Davis and Ackermann’s steering mechanisms, Hooke’s joint and Pantograph Unit II Friction 9 Hours Laws – Static, Dynamic and Rolling friction – Dry and Viscous friction – Friction in inclined plane and Screw threads – Friction in Journal bearings – Friction in clutches – Single plate and multi plate clutches, Cone clutches – Friction in Flat and V-belt drives - Friction aspects in brakes.

Band brake, block brakes, Internal and external shoe brakes, braking of vehicles Unit III Kinematics 9 Hours Displacement, Velocity and Acceleration - Graphical Method of Velocity (Relative Velocity Method) and Acceleration diagrams for Simple Mechanisms - Klien’s construction for Single Slider Crank Mechanism – Coriolis component of Acceleration.

Instantaneous method of velocity and acceleration diagram Unit IV Kinematics of Cam 9 Hours Classifications of Cam and Follower – Radial cam nomenclature – Analysis of follower motion – Uniform Velocity Motion, Simple Harmonic Motion, Uniform Acceleration and Retardation Motion and Cycloidal Motion – Construction of Cam Profile for a Radial Cam – Pressure angle and undercutting.

Cams with specified contours, tangent and circular are cams Unit V Gears and Gear Trains 9 Hours Law of toothed gearing – Involutes and cycloidal tooth profiles –Spur Gear terminology and definitions – Gear tooth action – Interference and undercutting – Problems – Helical, Bevel, Worm, Rack and Pinion gears [Basics only] – Introduction to gear correction. Gear trains – Speed ratio, train value – Parallel axis gear trains – Epicyclic Gear Trains – Determination of gear speeds using tabular method; torque calculations in simple, compound and Epicyclic gear trains

Differentials – Automobile gear box

Total: 45 + 15 Hours

Textbooks 1. S. S. Rattan, Theory of Machines, Tata McGraw Hill Publishing Company pvt Ltd, New Delhi, 2009 2. R. L. Norton, Kinematics and Dynamics of Machinery, Tata McGraw Hill Publishing Company Pvt Ltd., New Delhi, 2005 References 1. Ashok G. Ambekar, Mehanism and Machine Theory, Prentice Hall of India, New Delhi, 2009. 2. John J. Uichker and Joesph E. shigley, Theory of Machines and Mechanism, Tata McGraw Hall Publishing Company Pvt Ltd., New Delhi, 2005. 3. Jack T. Kimbrell, Kinematics Analysis and Synthesis, Tata McGraw Hall Publishing Company Pvt Ltd., New Delhi, 1991. 4. Sadhu Singh, Theory of Machines, Pearson Education, New Delhi, 2007. 5. Syad and R. L. Singal, Kinematics of Machinery, Tech Mac Publishers,Chennai, 2007....