Introduction to transmission systems –factors -materials selection –stresses – belt &chain drives Design of flat and V- belts, Design of chain drives, Design of rope drives, Selection of Transmission chains and Sprockets.
Gear Terminology-Speed ratios and number of teeth-Force analysis -Tooth stresses - Dynamic effects - Fatigue strength - Factor of safety - Gear materials – Module and Face width-power rating calculations based on strength and wear considerations - Parallel axis Helical Gears – Pressure angle in the normal and transverse plane- Equivalent number of teeth-forces and stresses. Estimating the size of the helical gears.
Straight bevel gear terminologies, tooth forces and stresses, equivalent number of teeth. Estimating the dimensions of pair of straight bevel gears. Worm Gear: Merits and demerits terminology. materials-forces and stresses, efficiency, estimating the size of the worm gear pair
Step ratio, ray diagram, kinematics layout. Design of sliding mesh gearbox, constant mesh gear box, multi speed gear box, Theory of variable speed gear box, Introduction to fluid couplings and Torque converters for automotive applications. Brakes: Selection of Brake materials, Design of internal and external shoe brakes, & Disc brakes
Cam Design & Selection of CAM Shaft Materials: Types-pressure angle and under cutting base circle determination-forces and surface stresses. Design of plate clutches –axial clutches-cone clutches-internal expanding rim clutches.
Reference Book:
1. Shigley J.E and Mischke C. R., “Mechanical Engineering Design”, Tenth Edition, Tata McGraw-Hill, 2015. 2. Prabhu. T.J., “Design of Transmission Elements”, Mani Offset, Chennai, 2015. 3. Hamrock B.J., Jacobson B., Schmid S.R., “Fundamentals of Machine Elements”, 2nd Edition, McGraw-Hill Book Co., 2014.
Text Book:
1. Bhandari, V.B., “Design of Machine Elements”, Fourth Edition, Tata McGraw-Hill Publishing Company Ltd., 2017. 2. Juvinall R. C., Marshek K.M., “Fundamentals of Machine component Design”, 5th Edition, John Wiley & Sons Third Edition, 2016.