WITH EFFECT FROM THE ACADEMIC YEAR 2012 - 2013
ME 351
MACHINE DESIGN
Instruction 4 Periods per week
Duration of University Examination 3 Hours
University Examination 75 Marks
Sessional 25 Marks
UNIT-I
Mechanical Springs: Types of springs and materials used. Design of helical springs on stress, deflection and energy considerations. Design for fluctuating loads. Concentric springs. Leaf Springs: Stresses and Deflection. Principles of Limit design. Nipping of Leaf springs.
UNIT-II
Gears: Types of gears and materials used. Standards for gear specifications. Design of Spur, Helical, Bevel and Worm Gears - Strength and Wear considerations. Types of failure of gear tooth and preventive measures.
UNIT-III
Bearings: Materials used for Bearings. Classification of Bearings. Viscosity of Lubricants. Theory of Hydrostatic and Hydrodynamic lubrication. Design of sliding contact bearings - for axial and thrust loads.
Rolling Contact Bearings: Different types of rolling element bearings and their constructional details. Static and Dynamic load carrying capacity, Load-life relationship. Design for cyclic loads.
UNIT-IV
I.C. Engine Parts : Design of piston, connecting rod and crank shafts (single throw and overhang). Design of Flywheels for I.C. Engines and presses.
UNIT-V
Theory of bending: Theory of bending of members with initial curvature - rectangular, circular and Trapezoidal sections. Design of crane Hooks, Machine flames and C-clamps.
Suggested Reading:
- 1.M.F. Spotts, "Design of Machine Elements", Pearson Edu, 7th
Edn. 2003.
- 2.V. B. Bhandari, "Machine Design", Tata McGraw-Hill Publ, 2010.
- 3.P.C.Sharma & D.K. Aggarwal, "Machine Design", S.K. Kataria & Sons, 10th Edn, 2003.
- 4.P. Kannaiah, "Machine Design", Sci- Tech Publ., 2009.
- 5.J.E. Shigley & Charles R. Mischke, " Mechanical Engineering Design", Tata McGraw-Hill., 6th ed. 2003.