MD1 (B-TECH Mechanical Engineering 5th)

Unit I Design Philosophy: Problem identification- problem statement, specifications, constraints,

Feasibility study-technical feasibility, economic & financial feasibility, societal & environmental

feasibility, Generation of solution field (solution variants), Brain storming, Preliminary design,

Selection of best possible solution, Detailed design, Selection of Fits and tolerances and analysis

of dimensional chains.

Unit II Selection of Materials: Classification of Engg. Materials, Mechanical properties of the commonly

used engg. Materials, hardness, strength parameters with reference to stress-strain diagram, Factor

of safety.

Unit III Mechanical Joints: ISO Metric Screw Threads, Bolted joints in tension, Eccentrically loaded bolted

joints in shear and under combined stresses, Design of power screws, Design of various types of

welding joints under different static load conditions.

Unit IV Riveted Joints, Cotter & Knuckle Joints: Design of various types of riveted joints under different

static loading conditions, eccentrically loaded riveted joints, design of cotter and knuckle joints.

Unit V Belt rope and chain drives: Design of belt drives, Flat & V-belt drives, Condition for Transmission

of max. Power, Selection of belt, design of rope drives, design of chain drives with sprockets.

Unit VI Keys, Couplings & Flywheel: Design of Keys – Flat, Kennedy Keys, Splines, Couplings design –

Rigid & Flexible coupling, turning Moment diagram, coefficient of fluctuation of energy and speed,

design of flywheel – solid disk & rimmed flywheels.

Unit VII Clutches: Various types of clutches in use, Design of friction clutches – Disc. Multidisc, Cone &

Centrifugal, Torque transmitting capacity.

Unit VIII Brakes: Various types of Brakes, Self energizing condition of brakes, Design of shoe brakes –

Internal & external expanding, band brakes, Thermal Considerations in brake designing.