2K6 ME 803: MACHINE DESIGN-11

Module I (13 Hours)
Design of clutches & brakes –friction clutches and brakes – uniform pressure and uniform wear assumptions – design of disc and cone types of clutches and brakes – design of external contracting and internal expanding elements – band type clutches and brakes – centrifugal clutches Design of belts and chain drives – belt and chain drives of common types – design of flat and V belt drives Selection of roller chains
Module II (13 Hours)
Design of gears – spur, helical, bevel and worm gears – tooth loads – gear materials – design stresses – basic tooth stresses – stress concentration – service factor – velocity factor – bending strength of gear teeth – Buckingham’s equation for dynamic load – surface strength and durability – heat dissipation – design for strength and wear.
Module III (13 Hours)
Lubrication & Journal bearing design – types of lubrication and lubricants – viscosity – journal bearing with perfect lubrication – hydrodynamic theory – design considerations – heat balance – journal bearing design – rolling contact bearings – bearing types – bearing life – static and dynamic capacity – selection of bearings with axial and radial loads – selection of tapered roller bearings – lubrication seals, shaft, housing and mounting materials
Module IV (13 Hours)
Product design for manufacturing – general design considerations for rolled sections – forgings – screws machine products –turned parts – machined round holes – parts produced on milling machine – welded parts and castings – modification of design for manufacturing easiness for typical products – preparation of working drawings – working drawings for manufacture of parts with complete specifications including manufacturing  details like tolerance – surface finish etc. – computer applications in the preparation for working drawings.

Text book
Shigley J.E., Mechanical Engineering Design, McGraw Hill Book Company
Reference books
1 Siegel, Maleev & Hartman, Mechanical Design of Machines, International Book Company
2 Phelan R.M., Fundamentals of Mechanical Design, Tata McGraw Hill Publishing Co. Ltd.
3 Doughtie V.L.& Vallance A.V., Design of Machine Elements, McGraw Hill Book Company
4 Juvinall R.C. & Marshek K.M., Fundamentals of Machine Component Design, John Wiley
5 Bralla J.G., Handbook of Product Design for Manufacture, McGraw Hill Book Company