Introduction to machine and design Principle of design, Phases of design, design considerations. Elements, links, pairs, kinematics chain, and mechanisms. Classification of pairs and mechanisms. Lower and higher pairs. Four bar chain, slider crank chain and their inversions. Cam, Types of cam, Terminology used in cam-follower system, Cam profile.
Types of gears. Law of gearing, velocity of sliding between two teeth in mesh. Involute and cycloidal profile for gear teeth. Spur gear, nomenclature, interference and undercutting. Introduction to helical, spiral, bevel and worm gear, Design of spur and helical gears. Gear train, Determination of velocity ratio and train value by using tabular method.
Types of loads and stresses, theories of failure, factor of safety, selection of allowable Stress. Stress concentration.
Elementary fatigue and creep aspects. Design of Cotter joints, knuckle joint and, Design of flange couplings.
Introduction to Belt drives, types of drives, belt materials, Length of belt, power transmitted, Velocity ratio, belt size for flat and V belts. Effect of centrifugal tension, Creep and Slip on power transmission, Bearing-Rolling friction, anti friction bearings. Types of governors. Constructional details and analysis of Watt, Porter, Proell governor.