Simulation Study of Design and Modification of Spring Suspension System

K. Qusai, Ayad A. Ramadhan and Ahmed M. Abbas

A damper is a mechanical device designed to smooth out and dissipate kinetic energy. The dampers duty is to dissipate energy. In a vehicle, it reduces the effect of traveling over rough ground, leading to improved ride quality, and increase in comfort due to substantially reduced amplitude of disturbances. When a vehicle is traveling on a level road and the wheels strike a bump, the spring is compressed quickly. The compressed spring will attempt to return to its normal loaded length and, in so doing, will rebound past its normal height, causing the body to be lifted. The weight of the vehicle will then push the spring down below its normal loaded height. This, in turn, causes the spring to rebound again. This bouncing process is repeated over and over, a little less each time, until the up-and-down movement finally stops. If bouncing is allowed to go uncontrolled, it will not only cause an uncomfortable ride but will make handling of the vehicle very difficult. The design of spring in suspension system is very important. In this research a spring-damperis designed and a 3D model is created using solid-works software. The model is also changed by changing the thickness of the spring. Structural analysis is done on the spring-damper by varying material for spring, Spring Steel and Beryllium Copper. The analysis is done by considering loads, bike weight, single person and 2 persons. Structural analysis is done to validate the strength and modal analysis is done to determine the displacements for different frequencies for number of modes. Comparison is done for two materials to verify best material for spring in damper.

Volume 11 | Issue 6

Pages: 252-261