Factor influencing machine design, selection of materials based on mechanical properties – Direct, bending and torsion stress equations – Impact and shock loading – Calculation of principle stresses for various load combinations, eccentric bending – Factor of safety – Theories of failure – Stress concentration – Fatigue strength and the S-N diagram – Soderberg, Goodman and Gerber relations.
Design of solid and hollow shafts based on strength and rigidity– Design of keys and key ways – Design of rigid and flexible couplings
Review of gear fundamentals – Interference - Gear forces - Dimensions of a spur gear pair- Dimensions of helical gear pair- Design of spur and helical gears – Nomenclature of worm and bevel gears
Design of helical and leaf springs under constant and varying loads – Design of knuckle and cotter joints.
Selection of bearings – Sliding contact and rolling contact types – Cubic mean load – Design of journal bearing – McKee’s equation – Lubrication in journal bearings – Calculation of bearing dimensions – Design of ball bearings.
Reference Book:
1.Sundararajamoorthy T. V. Shanmugam .N, “Machine Designâ€, Anuradha Publications, Chennai, 2.Alfred Hall, Halowenko, A and Laughlin, H., “Machine Designâ€, 3rd Edition Tata McGraw-Hill BookCo.(Schaums Outline), New Delhi, 2010 3.Sundararajamoorthy T. V, Shanmugam .N, “Machine Designâ€, Anuradha Publications, Chennai, 2003.
Text Book:
1. Bhandari V, “Design of Machine Elementsâ€, 4rd Edition, Tata McGraw-Hill Book Co, New Delhi, 2016 2. Prabhu T J, “Design of Transmission Systemsâ€, private publication,
