DESIGN AND ANALYSIS OF HELICAL SPRING FOR A FOUR WHEELER

Suspension system is the word that is a combination of spring systems, shock absorbers and links, these all are connected to the wheels of vehicle. Whenever tire hits a bump, the reaction force will be developed and this reaction force is reduced by using suspension system.The rate how much the reaction force is generated is completely relies on the unsprung weight and these are situated at assembly of each wheel. If the ratio between sprung weight to unsprung weight is larger than the vehicle body and passengers present in the vehicle are affected less by obstructions on the road. In this manuscript helical spring of a car is designed. In suspension crucial part to design is spring. The present paper deals with the helical spring and it is 3D modelled using creo 2.0. Analysis is done using Ansys 14.5. Structural analysis has performed on helical spring by altering material for the spring, Beryllium Copper, Structural Steel, Titanium alloy and Phosphor bronze. This analysis is carried out by the consideration of load acting on the suspension system. Structural analysis has performed on different materials for strength validation and Compared stress values for these materials to know the best suitable material for the spring