Syllabus Theory of Machines - (ME3491) UNIT - I KINEMATICS OF MECHANISMS Mechanisms - Terminology and definitions - kinematics inversions of 4 bar and slide crank chain - kinematics analysis in simple mechanisms - velocity and acceleration polygons - Analytical methods - computer approach - cams - classifications - displacement diagrams - layout of plate cam profiles - derivatives of followers motion - circular arc and tangent cams. (Chapters - 1, 2, 3, 4) UNIT - II GEARS AND GEAR TRAINS Spur gear - law of toothed gearing - involute gearing - Interchangeable gears - Gear tooth action interference and undercutting - nonstandard teeth - gear trains - parallel axis gears trains - epicyclic gear trains - automotive transmission gear trains. (Chapters - 5, 6) UNIT - III FRICTION IN MACHINE ELEMENTS Surface contacts - Sliding and Rolling friction - Friction drives - Friction in screw threads - Bearings and lubrication - Friction clutches - Belt and rope drives - Friction aspects in brakes - Friction in vehicle propulsion and braking. (Chapter - 7) UNIT - IV FORCE ANALYSIS Applied and Constrained Forces - Free body diagrams - static Equilibrium conditions - Two, Three and four members - Static Force analysis in simple machine members - Dynamic Force Analysis - Inertia Forces and Inertia Torque - D’Alembert’s principle - superposition principle - dynamic Force Analysis in simple machine members. (Chapter - 8) UNIT - V BALANCING AND VIBRATION Static and Dynamic balancing - Balancing of revolving and reciprocating masses - Balancing machines -free vibrations - Equations of motion - natural Frequency - Damped Vibration - bending critical speed of simple shaft - Torsional vibration - Forced vibration - harmonic Forcing - Vibration isolation. (Gyroscopic principles). (Chapters - 9, 10, 11, 12, 13, 14, 15)
