Unit 3 deals with the design of threaded fasteners, design of bolted joints, knuckle joints, cotter joints, design of welded and riveted joints for structures and theory of bonded joints.ĭesign of different types of springs under constant and variable loading, design of flywheels considering stresses in rims and arms for engines and punching machines, design of connecting rods and crank shafts have been discussed in Unit 4.ĭesign of sliding contact and rolling contact bearings, design of hydrodynamic journal bearings, Sommerfeld number, Raimondi and Boyd graphs, selection of rolling contact bearings are treated elaborately with good solved examples in Unit 5. Unit 2 has an in depth dealing of design of solid and hollow shafts based on strength, rigidity and critical speed, design of keys and key ways, design of rigid and flexible couplings. Elaborate treatment of analytical and theoretical nature is provided in all topics. Unit 1 deals with basic steady and variable stresses in machine members in which factor influencing machine design, selection of materials based on mechanical properties, preferred numbers, fits and tolerances, direct, bending and torsional stress equations, impact and shock, eccentric loading, design of curved beams, theories of failure are discussed.

Creo elements direct modeling 20.1