ME8593 - DESIGN OF MACHINE ELEMENTS SYLLABUS / BOOKS AND MATERIALS
UNIT I STEADY STRESSES AND VARIABLE STRESSES IN MACHINE MEMBERS
Introduction to the 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 principle stresses for various load combinations, eccentric loading – curved beams – crane hook and ‘C’ frame- Factor ofsafety - theories of failure – Design based on strength and stiffness – stress concentration –Design for variable loading.
UNIT II SHAFTS AND COUPLINGS :
Design of solid and hollow shafts based on strength, rigidity and critical speed – Keys, keyways and splines - Rigid and flexible couplings.
FOR OTHER THIRD YEAR BOOKS:THIRD YEAR
UNIT III TEMPORARY AND PERMANENT JOINTS :
Threaded fastners - Bolted joints including eccentric loading, Knuckle joints, Cotter joints –Welded joints, riveted joints for structures - theory of bonded joints.
UNIT IV ENERGY STORING ELEMENTS AND ENGINE COMPONENTS :
Various types of springs, optimization of helical springs - rubber springs - Flywheels considering stresses in rims and arms for engines and punching machines- Connecting Rods and crank shafts.
UNIT V BEARINGS :
Sliding contact and rolling contact bearings - Hydrodynamic journal bearings, Sommerfeld Number, Raimondi and Boyd graphs, -- Selection of Rolling Contact bearings.