Design of Machine Members – II (Mech 3-2)



Course Objective:
To aware the student about basic concepts of curved beams with different cross sections, design of power transmission elements, understand the design concepts of various types of springs, various types of bearings and gears. To know the students how to apply design concepts in designing of IC engine parts like Piston, cylinder, connecting rod and crank shaft.

UNIT I
DESIGN OF CURVED BEAMS: Stresses in curved beams, Expression for radius of neutral axis for rectangular, circular, trapezoidal and T-Section. Design of crane hooks, C –clamps.
DESIGN OF POWER TRANSMISSIONS SYSTEMS: Design of Flat belt drives, V-belt drives & rope drives. Selection of wire ropes, design procedure for chain drives.

UNIT II
DESIGN OF MECHANICAL SPRINGS: Stress and deflections of helical SpringsSprings for fatigue loading – Natural frequency of helical springs-Energy storage capacity- Helical Torsion springs- Design of leaf springs.
DESIGN OF POWER SCREWS: Design of screw- Square, ACME and Buttress screwsEfficiency of the screw. Design of compound screw, differential screw, ball screwAll possible failure

UNIT III
DESIGN OF BEARINGS: Types of Journal bearings – Lubrication – bearing materials – journal bearing design – Ball and roller bearings – Static loading of ball & roller bearings, bearing life –Failure of bearings

UNIT IV
DESIGN OF SPUR & HELICAL GEARS: Spur gears- Helical gears – Bending strength– Design analysis of spur and Helical gears – Estimation of centre distance, module and face width. Check for dynamic and wear considerations

UNIT V
DESIGN OF IC ENGINE PARTS: Pistons– Design of piston. Cylinder, Connecting Rod Crank shafts- Center and over hung cranks.


Study Material's for Design Of Machine Members II

Lecture Notes(Complete): Download
2 Mark's for all Units: Download
Machine Design by J.K.GUPTA[Text book]: Download
Important Questions (Unit Wise): Download


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