Automobile Science - Bharathidasan University

1. Groover,M.P., CAD/CAM Computer Aided Design and Manufacturing, Prentice Hall,
1990.
2. Niebel, Modern Manufacuring Process Engineering, McGraw Hill, 1989.
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NON MAJOR ELECTIVE II
BASIC CONCEPTS OF TWO & THREE WHEELED AUTOMOBILES
UNIT I INTRODUCTION
Classification of two wheelers and three wheelers Motor cycles, Scooter, mopeds, racing
bikes, auto-rickshaws, three wheeled pick-up delivery and trailer vehicles. Basic design
considerations-Overall weight and dimension limitations, power requirements and
stability problems, Gyroscopic effect-Rake, Trail, Pendulum effect and cornering forces.
UNIT II POWER UNITS
Two-stroke and four stroke engines for two wheelers. Design criteria for cylinders and
cylinder head, cooling system and lubrication system. Carburaters-types for two and three
wheelers. Ignition systems-Magneto, battery coil and Electronic ignition.
UNIT III CLUTCHES AND TRANSMISSION
Clutch types for two and three wheelers, Gears, Gear changing mechanisms. Clutch
operating mechanisms, belt, chain and shaft drives. Free wheeling devices, Lubrication of
transmission system.
UNIT IV FRAMES AND SUSPENSION
Various types of frames used. Basics of designing of frames for fatigue strength, torsional
stiffness and lateral stability. Front and Rear forks. Springs for suspension and dampers.
UNIT V WHEEL, TYRES AND BRAKING
Wheel types, method of wheel attachment. Tyre selection. Brakes-types. Operating
mechanisms.
TEXT BOOK
1. Irving. P.E., Motor cycle Engineering, Temple Press Book, London, 1992.
2. Srinivasan S., Motor car Mechanism, New century book house private Ltd,1987.
REFERENCES
1. The Cycle Motor Manual, Temple Press Ltd., London, 1990.
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