Introduction to design process - factors 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 principal stresses for various load combinations, eccentric loading, curved beams – crane hook and “C” frame - design based on strength and stiffness –factor of safety - theories of failure
Stress concentration - theoretical stress concentration factor - Size factor - Surface finish factor - fatigue stress concentration factor - notch sensitivity - Variable and cyclic loads – Fatigue strength – S-N curve – Continued cyclic stress – Soderberg and Goodman equations. Design of cotter joints and knuckle joints - Fits & tolerances – Detailed study on GD&T with industrial case studies
Design of solid and hollow shafts for strength and rigidity – Design of shafts for combined bending and axial loads – shaft sizes. Design of couplings – Rigid – Muff, Split muff and Flange couplings - Flexible – Rigid Flange couplings
Design of helical, leaf and torsional springs under constant and variable loads Design of Rolling Contact and Sliding Contact Bearing
Design of Piston – Connecting rod – Crankshaft and Flywheel – Design of Pulleys – Case study on Design and Analysis of Engine Components
Reference Book:
1. Sundararajamoorthy T. V. Shanmugam .N, “Machine Design”, Anuradha Publications, Chennai, 2003). 2. Robert C. Juvinall and Kurt M. Marshek, “Fundamentals of Machine Design”, 7th Edition, Wiley, 2016. 3. Alfred Hall, Halowenko, A and Laughlin, H., “Machine Design”, 3rd Edition TataMcGrawHill Book Co. (Schaums Outline), New Delhi, 2010. 4. Bernard Hamrock, Steven Schmid, Bo Jacobson, “Fundamentals of Machine Elements”,2nd Edition, Tata McGraw-Hill Book Co, New Delhi, 2006. 5. Orthwein W, “Machine Component Design”, 3rd Edition Jaico Publishing Co,New Delhi, 2003.
Text Book:
Handari V, “Design of Machine Elements”, 4th Edition, Tata McGraw-Hill Book Co, New Delhi, 2016. 2. Joseph Shigley, Charles Mischke, Richard Budynas and Keith Nisbett “Mechanical Engineering Design”, 10th Edition, Tata McGraw-Hill, New Delhi, 2015