BE Mechanical 2003 Structure - K. K. Wagh Education Society

and hypoid gears and comparison with straight tooth bevel gears. Lubrication and
Mounting of bevel gears. Bearing reactions. Types of failures in bevel gears.
2. Worm gears:
Worm and worm gear terminology and geometrical relationship-Types of worm
and worm gears. Standard dimensions-force analysis of worm gear drive- Friction
in Worm gears, efficiency-Worm and Worm wheel material-strength and wear
ratings of worm gears- Thermal consideration in worm gear drive-Design of
worm gear drive as per IS 7443 Types of failures in worm gearing. Methods of
lubrication and selection of bearings.
3. Cylinders and pressure vessels:
Thick and thin cylinders-Thin cylindrical and spherical vessels-Lame’s equation-
Clavarino’s and Birnie’s equations-Design of hydraulic and pneumatic cylinders-
Auto frettage and compound cylinders-Gasketed joints in cylindrical vessels.
Modes of failures in pressure vessels.
Unfired pressure vessels-Classification of pressure vessels as per I. S.: 2825-
categones and types of welded joints-weld joint efficiency-Corrosion, erosion and
protection of vessels, stresses induced in pressure vessels, materials of
construction. Thickness of cylindrical and spherical shells and design of end
closures as per code-Nozzles and Openings in pressure vessels-Reinforcement of
openings in shell and end closures. Area compensation method-Types of vessel
supports.
4. Flywheel:
Fundamental equation of motion-torque analysis-disk and rimmed flywheels-
Stresses in flywheel rim and spokes-Design of disc and rimmed flywheels for
various applications. Standard dimensions of flywheels.