http://www.iaeme.com/IJMET/index.asp 146 editor@iaeme.com International Journal of Mechanical Engineering and Technology (IJMET) Volume 8, Issue 1, January 2017, pp. 146–151, Article ID: IJMET_08_01_016 Available online at http://www.iaeme.com/IJMET/issues.asp?JType=IJMET&VType=8&IType=1 ISSN Print: 0976-6340 and ISSN Online: 0976-6359 © IAEME Publication CUSTOMIZED SPRING AND DAMPER OF AN ATV Rajat Panday, Siddarth Mohanty, Komal Gulati School of Mechanical Engineering, KIIT University, India ABSTRACT Shock absorbers are a critical part of a suspension system, connecting the vehicle to its wheels. The need for designing the dampers arises because of the roll and pitches associated with vehicle maneuvering, and from the roughness of roads. In the mid nineteenth century, road quality was generally very poor. Shock absorbers are devices that smooth out an impulse experienced by a vehicle, and appropriately dissipate or absorb the kinetic energy. shock absorbers have become such an essential component of an automobile even then there has been no particular method to test it using Finite Element Analysis technique and most of the testing is done using the physical tests. Thus this paper focuses on to develop new correlated methodologies that will allow engineers to design components of Shock Absorbers by using FEM based tools. Key words: Muffler, Silencer, BSFC, BTE Cite this Article: Rajat Panday, Siddarth Mohanty and Komal Gulati. Customized Spring and Damper of an ATV. International Journal of Mechanical Engineering and Technology, 8(1), 2017, pp. 146–151. http://www.iaeme.com/IJMET/issues.asp?JType=IJMET&VType=8&IType=1 1. INTRODUCTION The current world-wide production of shock absorbers, is difficult to estimate with accuracy, but is probably around 50– 100 million units per annum with a retail value well in excess of one billion dollars per annum. If all is well, these shock absorbers do their work quietly and without fail. Drivers and passengers simply want the dampers to be trouble free. In contrast, for the designer they are a constant interest and challenge. The need for dampers arises because of the roll and pitches associated with vehicle/bike maneuvering and from the roughness of roads. As there is growing demand for quality shock absorbers in India, design and construction of shock absorbers are demanding tasks that require advanced calculations and theoretical knowledge. There are two basic shock absorber designs in use today: the two- tube design and the mono-tube design. 2. DAMPERS There are basically two type of dampers- mono tube and twin tube damper. Snubber, a device that controls unwanted spring motion through a process known as dampening. Shock absorbers slow down and reduce the magnitude of vibratory motions by turning the kinetic energy of suspension movement into heat energy that can be dissipated through hydraulic fluid.