DAC (B-TECH Automobile Engineering 5th)

Meaning of design: Definition and understanding of various types of design, Elaborated

Design process.

Design and creativity: Systematic design conceptualization, product design definition &

manufacturing considerations in design, underlying principles of design in Aesthetics and

ergonomics, free body diagram for components design.

General Design Considerations: Theory of Failure, Selection of materials, Basic criteria of

selection of material for automotive parts like piston, cylinder, connecting rod, crankshaft and

camshaft, mechanical properties of those materials in brief. Study of Stress concentration,

factor of safety under different loading conditions,

Design against Static Loading: Bolted Joints- Understanding the various stresses/ failure in

bolted joints, basic and eccentrically loaded bolts, Welded Joints- Design for various loading

conditions in torsion, shear or direct loads.

Design against Fluctuating Loading: Design of automobile coupling & Springs, Flywheel,

Braking Systems, self energizing brakes, shoe brakes - internal & external expanding, band

brakes and disc brakes.

Transmission: Clutch-Design considerations for single plate clutch, centrifugal clutch, cone

clutch, energy dissipated, torque transmission capacity of clutch. Gears - Design of spur,

helical and straight bevel gears, Final Drive- Design consideration for different types of

propeller shafts & rear axles. Bearing - Basics of bearings, their types, nomenclature and

Selection criteria.