Class/Sem: III MECH / V SEM
Steady Stresses and Variable Stresses In Machine Members
Introduction to the design process - 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 loading – calculation of principle stresses for various load
combinations, eccentric loading – Design of curved beams – crane hook and ‘C’ frame - Factor of
safety - theories of failure – stress concentration – design for variable loading – Soderberg,
Goodman and Gerber relations
Design of Shafts and Couplings
Design of solid and hollow shafts based on strength, rigidity and critical speed – Design of keys,
key ways and splines - Design of crankshafts -- Design of rigid and flexible couplings.
Design of Temporary and Permanent Joints
Threaded fastners - Design of bolted joints including eccentric loading, Knuckle joints, Cotter
joints – Design of welded joints, riveted joints for structures - theory of bonded joints.
Design of Energy Storing Elements
Design of various types of springs, optimization of helical springs -- rubber springs -- Design of
flywheels considering stresses in rims and arms, for engines and punching machines.
Design Of Bearings and Miscellaneous Elements
Sliding contact and rolling contact bearings -- Design of hydrodynamic journal bearings, McKee's
Eqn., Sommerfield Number, Raimondi & Boyd graphs, -- Selection of Rolling Contact bearings - Design of Seals and Gaskets -- Design of Connecting Rod.
Total: 45 Periods
1. Shigley J.E and Mischke C. R., “Mechanical Engineering Design”, Sixth Edition, Tata
McGraw-Hill , 2003.
2. Bhandari V.B, “Design of Machine Elements”, Second Edition, Tata McGraw-Hill Book
1. Sundararajamoorthy T. V, Shanmugam .N, "Machine Design", Anuradha Publications,
2. Orthwein W, “Machine Component Design”, Jaico Publishing Co, 2003.
3. Ugural A.C, “Mechanical Design – An Integral Approach, McGraw-Hill Book Co, 2004.
4. Spotts M.F., Shoup T.E “Design and Machine Elements” Pearson Education, 2004.