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Design, Analysis and Fabrication of Suspension System of an All- Terrain Vehicle

Author(s):

Mr. Vijay D Zarkar , PCET�s Pimpri Chinchwad College of Engineering and Research; Mr Vaishnav Saykar, PCET�S PIMPRI CHINCHWAD COLLEGE OF ENGINEERING AND RESEARCH; Mr Vedang D Sharma, PCET�S PIMPRI CHINCHWAD COLLEGE OF ENGINEERING AND RESEARCH; Mr Kshitij N Sable, PCET�S PIMPRI CHINCHWAD COLLEGE OF ENGINEERING AND RESEARCH

Keywords:

All- Terrain Vehicle, Wishbones, Suspension system, Shock absorbers, Knuckle, Hub, A-arms Lotus

Abstract

The main objective of this paper is to design, analyze and fabricate a double wishbone suspension system for an All- Terrain Vehicle for SAE BAJA INDIA competition. The suspension system comprises of wishbones, shock absorbers, springs, wheel assembly, and ball-joints. The suspension system supports the sprung mass of the vehicle. It also absorbs the shocks and vibrations arising from the rough terrains and roads. It is responsible for the safety of a vehicle during its maneuver. It also serves the dual purpose of providing stability to the vehicle while providing a comfortable ride quality to the occupants. Nowadays, modern automobiles are incorporating the active and semi-active type of suspension system. Due to cost restrictions, the type of suspension is the passive type. During the design, the focus was more on weight and cost optimization. This paper proposes a method for the design of wishbones, shocks, wheel assembly. Double wishbone A-arm suspension was chosen for front and H- arm suspension was chosen for the rear. The design of the components was done on CATIA V5 R21. It included the design of wishbones, wheel knuckle and wheel hub. All the components were rigorously analyzed on ANSYS Workbench 19.1. It included the static structural analysis of all the components. The dynamic characteristics of the system were analyzed on simulation tools. The output characteristics of the passive system (without variable length arms) were validated on LOTUS software. In LOTUS, various geometries like camber, caster, and kingpin inclination were set accordingly. After the CAE of components, a material survey was done and apt material was chosen. Wishbones were fabricated and wheel assembly was done on VMC. Hence, this provides the scope for an optimized and durable performance of the suspension system.

Other Details

Paper ID: IJSRDV7I70355
Published in: Volume : 7, Issue : 7
Publication Date: 01/10/2019
Page(s): 507-517

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