Vol-3 Issue-2 2017 IJARIIE-ISSN(O)-2395-4396 4147 www.ijariie.com 1214 Design and Analysis of Wave Spring and compared with Coiled Spring for same Parameter Prof. Dhruv Joshi , Santosh Srivastava S. , Bhautik Patel R. , Mehul Gohil M. Abstract The Spring which is one of the part of Suspension systems, Which is designed mechanically to handle shock impulse and dissipate kinetic energy. It decrease the amplitude of disturbances leading to increase in comfort and improved ride quality. The spring is compressed rapidly when the load impacting on it. The compressed spring rebound to its normal dimension or normal loaded length. The spring get compressed below its normal height when the load pushes the spring down. This causes the spring to rebound again. The spring bouncing process occurs over and over every less each time, until the up-and-down movement finally stops or the disturbance can be neglected. The system handling becomes very difficult and leads to uncomfortable operation when vibration become uncontrolled. Hence, the designing of spring in a suspension system is very crucial. The analysis is done by considering bike mass, loads, and no of persons seated on bike. Comparison is done by substituting coil spring by wave spring to verify the best dimension for the wave spring in shock absorber. Modeling and Analysis is done using Pro/ENGINEER and ANSYS respectively. Key Words: Shock Absorber, Coil Spring, Wave spring, Modified design, Stress analysis. I. Introduction The Shock absorber which is one of the Suspension systems is designed mechanically to handle shock impulse and dissipate kinetic energy. It reduces the amplitude of disturbances leading to increase in comfort and improved ride quality. Hence, the designing of spring in a suspension system is very crucial. The Shock absorber coil spring is designed by using the modeling software Pro/ENGINEER Wildfire 4.0. Later this Pro/ENGINEER model is imported to ANSYS for the analysis work. The ANSYS software is used for analyzing the component by varying the load applied on it and the results are observed Working of shock absorbers Spring: Shock absorbers work in two cycles--the compression cycle and the extension cycle. The compression cycle occurs as the piston moves downward, compressing the hydraulic fluid in the chamber below the piston. The extension cycle occurs as the piston moves toward the top of the pressure tube, compressing the fluid in the chamber above the piston. A typical car or light truck will have more resistance during its extension cycle than its compression cycle. With that in mind, the compression cycle controls the motion of the vehicle's unsprung weight, while extension controls the heavier, sprung weight. II. Objective