JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

UNIT - I

Introduction to Chassis System: Introduction: Requirements of an automobile with types of automobiles, layout of an automobile with reference to power plant, power required for propulsion, various resistances to motion of the automobile. Frames: Types of frames, materials, calculation of stresses on sections, constructional details, loading points. Testing of frames. Wheels and tyres: Types of wheels, construction. Structure and function of tyres, static and function of tyres.

UNTI-II Two and three wheelers: construction details of frames and forks, suspension systems and shock absorbers, different arrangement of cylinders. Steering systems: types of steering gears, front axle. Under steer and over steer, wheel alignment. Power steering, steering geometry, wheel balancing.

UNIT - III

Brakes: Types of brakes, stopping distance, and time. Brake efficiency, weight transfer, brake shoe theory, determination of braking torque, braking systems -mechanical, hydraulic, disc, parking and emergency brakes, servo and electrical brakes, details of hydraulic system, mechanical system and components. Types of master cylinders, factors influencing operation of brakes such as operating temperature, lining, brake clearance, pedal pressure, linkages etc.

UNIT - IV

Suspension: Types of suspension, leaf springs, materials, independent suspension, torsion bar, air bellows or pneumatic, suspension, hydraulic suspension, constructional details of telescopic shock absorbers. Types, vibrations and riding comfort, role axis of spring suspension.

UNIT - V

Engine Mounting: Front Wheel Mounting, Rear Wheel Mounting, Engine mounting, various types of springs used in suspension system. Requirements and various types. Material. Testing: Testing procedures, types of tests and chassis components, equipment for lab and road tests, preparation of test reports.

TEXTBOOK:

• 1. Automotive chassis and body - P. L. Kohli, TMH
• 2. The Automotive Chassis Vol 1, and Vol. 2, By Giancarlo, Lorenzo, Springer, Distributed by Yes Dee Publishing Pvt. Ltd. R16 B.TECH AUTOMOBILE ENGG.

REFERENCE BOOKS

• 1. Road Vehicle Accident Reconstruction by Rao V Dukkipati, New Age International Publishers.
• 2. The Automotive Body By. Lorenzo Morellol, Springer Distributed by Yes Dee Publishing Pvt. Ltd.
• 3. Introduction to automobile engineering -N.R. Khatawate. Khanna pub.
• 4. Automotive mechanics -Joseph I heitner. Affiliated East West Press
• 5. Problems in Automobile Engineering -N.K.Giri, Khanna Pub
• 6. Automotive Chassis -P.M. Heldt, Chilton & Co. R16 B.TECH AUTOMOBILE ENGG.