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ANNA UNIVERSITY B.E. MECHANICAL ENGINEERING,SEMESTER - VI,ME1352 DESIGN OF TRANSMISSION SYSTEMS

ME1352 DESIGN OF TRANSMISSION SYSTEMS 3 2 0 100
OBJECTIVE
To gain knowledge on the principles and procedure for the design of power Transmission components.
To understand the standard procedure available for Design of Transmission sip terms
To learn to use standard data and catalogues
1. DESIGN OF TRANSMISSION SYSTEMS FOR FLEXIBLE ELEMENTS 9
Selection of V belts and pulleys - selection of Flat belts and pulleys - Wire ropes and pulleys - Selection of Transmission chains and Sprockets. Design of pulleys and sprockets.
2. SPUR GEARS AND PARALLEL AXIS HELICAL GEARS 9
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.

3. BEVEL, WORM AND CROSS HELICAL GEARS 9
Straight bevel gear: Tooth terminology, tooth forces and stresses, equivalent number of teeth. Estimating the dimensions of pair of straight bevel gears.
Worm Gear: Merits and demerits- terminology. Thermal capacity, materials-forces and stresses, efficiency, estimating the size of the worm gear pair.
Cross helical: Terminology-helix angles-Estimating the size of the pair of cross helical gears.
4. DESIGN OF GEAR BOXES 9
Geometric progression - Standard step ratio - Ray diagram, kinematics layout -Design of sliding mesh gear box -Constant mesh gear box. - Design of multi speed gear box.
5. DESIGN OF CAM, CLUTCHES AND BRAKES 9
Cam Design: 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-internal and external shoe brakes.
TUTORIALS 30
TOTAL : 75
Note: (Usage of P.S.G Design Data Book is permitted in the University examination)
TEXT BOOKS
Juvinall R. C., Marshek K.M., "Fundamentals of Machine component Design", - John Wiley & Sons Third Edition, 2002.
Bhandari, V.B., "Design of Machine Elements", Tata McGraw-Hill Publishing Company Ltd., 1994.
REFERENCES
Maitra G.M., Prasad L.V., "Hand book of Mechanical Design", II Edition, Tata McGraw-Hill, 1985.
Shigley J.E and Mischke C. R., "Mechanical Engineering Design", McGraw-Hill International Editions, 1989.
Prabhu. T.J., "Design of Transmission Elements", Mani Offset, Chennai, 2000,
Norton R.L, "Design of Machinery", McGraw-Hill Book co, 2004.
Hamrock B.J., Jacobson B., Schmid S.R., "Fundamentals of Machine Elements", McGraw-Hill Book Co., 1999.
STANDARDS
IS 4460 : Parts 1 to 3 : 1995, Gears - Spur and Helical Gears - Calculation of Load Capacity.
IS 7443 : 2002, Methods of Load Rating of Worm Gears
IS 15151: 2002, Belt Drives - Pulleys and V-Ribbed belts for Industrial applications - PH, PJ, PK, Pl and PM Profiles : Dimensions
IS 2122 : Part 1: 1973, Code of practice for selection, storage, installation and maintenance of belting for power transmission : Part 1 Flat Belt Drives.
IS 2122: Part 2: 1991, Code of practice for selection, storage, installation and maintenance of belting for power transmission : Part 2 V-Belt Drives.
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