International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
Review on shock absorbers & suspension system Manpreet singh1, Er. Jasvinder Singh2,Er.Gurpreet singh3, 1Student,
Department of Mechanical Engineering, DIET, Kharar Professor, Department of Mechanical Engineering, DIET, Kharar ---------------------------------------------------------------------***--------------------------------------------------------------------2,3Assistant
Abstract – Shock absorber is an essential part of suspension system in vehicles. There are different types of springs used in shock absorbers such as helical, leaf, coil, etc. Shock absorbers used in auto mobiles, industries in machines, robots, etc. A spring in shock absorbers absorbs or store energy so that it called mechanical devices. Shock absorbers design in such a way to give comfortable ride with smooth out damp shock impulse and dissipate kinetic energy. The aim of this review paper is to analyses and minor study on shock absorbers.
1.INTRODUCTION Shock absorber consist of two parts first is spring and second is damper, where spring is a elastic member or device which store mechanical energy is to made by spring steel when a spring stretched or compressed it exerts a apposing force . There are different types of spring used in automobile discussed below mostly springs are obey hooks law. Mainly, shock absorbers are also known as oil pumps, a piston is installed at the end of piston rod and it runs hydraulically . when a vehicle run on worst road it move or roll up and down motion due jerks or damps condition of road so hydraulic fluid forced through some orifices holes consist in piston these orifices allows worst only little amount of fluid as a oil enters through the piston due to this a restriction cause to piston or slow down spring and suspension movement.
(1.1) MAIN COMPONENT OF SHOCK ABSORBERS ARE: (a) PISTON ROD,(b) MAIN BEARING,(c) PISTON RINGS,(d) PRESSURE CHAMBER,(e) OUTER BODY (a) Piston and piston rod is most necessary part of whole mechanical device mainly made up of high tensile steel has long life .piston rod attached one end of piston rod . (b) The function of main bearing is provide lubrication to whole shock absorber . (c) Main function of rings are seal the lubrication oil or maintain pressure .mainly two types of piston rings are pressure ring and lubrication ring .pressure ring maintain pressure and other ring restricts lubrication oil. (d) It is made by hard alloy steel and can with stand up to internal pressure about 1000 bar. (e)Outer body covers whole components and protect them from dust and foreign material like dust particles
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1.2 Selection of material : Material and its allowable stress table given below of spring material used in shock absorbers .
1.3 SHOCK ABSORBER TYPES ARE: There are many types of shock absorbers available in market /industry different kinds of techniques are there to reduce shocking effect on running vehicles and to make a ride comfortable. Š 2017, IRJET
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