AU3701 Engine and Chassis Components Design Syllabus:
AU3701 Engine and Chassis Components Design Syllabus – Anna University Regulation 2021
COURSE OBJECTIVES:
The objective of this course is to prepare the students for understanding the design concept and principles involved in various engine components like cylinder, piston, connecting rod, crankshaft, flywheel, axle, suspension and steering systems.
UNIT I INTRODUCTION
Engineering materials – Introduction endurance limit, notch sensitivity. Tolerances, types of tolerances and fits, design considerations for interference fits, surface finish, surface roughness, Rankine’s formula – Tetmajer’s formula – Johnson formula- design of pushrods.
UNIT II DESIGN OF CYLINDER, PISTON AND CONNECTING ROD
Choice of material for cylinder and piston, design of cylinder, piston, and piston pin, piston rings, piston failures, lubrication of piston assembly. Material for connecting rod, determining minimum length of connecting rod, small end design, shank design, design of big end cap bolts.
UNIT III DESIGN OF CRANKSHAFT AND FLYWHEEL
Balancing of I.C. engines, significance of firing order. Material for crankshaft, design of crankshaft under bending and twisting, balancing weight calculations, development of short and long crank arms. Front and rear-end details. Determination of the mass of a flywheel for a given co – efficient of speed fluctuation. Engine flywheel – stresses on the rim of the flywheels. Design of hubs and arms of the flywheel, turning moment diagram.
UNIT IV DESIGN OF VEHICLE FRAME, SUSPENSION AND STEERING SYSTEMS
Study of loads-moments and stresses on frame members. Design of frame for passenger and commercial vehicle – Design of leaf Springs-Coil springs and torsion bar springs. Determination of optimum dimensions and proportions for steering linkages, ensuring minimum error in steering.
UNIT V DESIGN OF FRONT AXLE, REAR AXLE AND DRIVE LINE
Analysis of loads-moments and stresses at different sections of front axle. Determination of bearing loads at Kingpin bearings. Wheel spindle bearings. Choice of Bearings. Design of front axle beam. Design of propeller shaft. Design details of final drive gearing. Design details of full floating, semi-floating and three quarter floating rear shafts and rear axle housings and design aspects of final drive.
TOTAL : 45 PERIODS
COURSE OUTCOMES:
At the end of this course, students will be able to
1. Understand the choice of material for various vehicle components
2. Design various vehicle components.
3. Apply the concept of limits, fits and tolerance during the design of engine and chassis components
4. Analyse the different types of loads acting in various engine components
5. Describe the requirement of surface finish of vehicle components
TEXT BOOKS:
1. Khurmi. R.S. & Gupta. J.K., “A text book of Machine Design”, Eurasia Publishing House (Pvt) Ltd, 2001.
2. Giri, N.K., “Automobile Mechanics”, Khanna publishers, New Delhi, 2007.
REFERENCES:
1. Jain.R.K, “Machine Design”, Khanna Publishers, New Delhi, 2005.
2. Dean Averns, “Automobile Chassis Design”, Illife Book Co., 2001.
3. Heldt, P.M., “Automotive Chassis”, Chilton Book Co., 1992.