This document presents a design and analysis of a shock absorber spring for automobiles. It was presented by students to their professor. The abstract indicates that a shock absorber reduces the effect of traveling over rough ground, improving ride quality and comfort. The students created a 3D model of a suspension system in Creo software and analyzed the model using ANSYS by varying the spring material. A comparison of different materials like spring steel, phosphor bronze, beryllium copper, and titanium alloy was done to determine the best material for the spring in the shock absorber.

1. DESIGN AND ANALYSIS OF SHOCK ABSORBER
SPRING FOR AUTOMOBILES
GUIDED BY
Mr. D.N.Graceson, M.E.,
Assistant Professor
Department of Mechanical
Engineering
PRESENTED BY
Jobin.R.A 961618114018
Nandan.B.R 961618114020
Nisanth Kumar.P 961618114021
Marthandam College of Engineering and Technology,
Kuttakuzhi.

2. ABSTRACT
 Shock absorber is a mechanical device designed to smooth out
or damp shock impulse, and dissipate kinetic 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.
 In this project suspension system is design and a 3D model is
create using Creo.
 The model is also change by changing the thickness of the
spring.

3.  Structural analysis and modal analysis are will do on the shock
absorber by varying different spring materials.
 Spring materials are Spring Steel, Phosphor bronze, Beryllium
Copper and Titanium alloy.
 To validate the strength of the model, the structural analysis on
the helical spring was done.
 The analysis is done by considering loads, bike weight, and
single, double riding.
 Finally comparison is done for different materials to verify best
material for spring in Shock absorber. Modeling is in Creo and
analysis is in ANSYS.

4. INTRODUCTION
 A shock absorber or damper is a mechanical device designed to smooth
out or damp shock impulse, and dissipate kinetic energy.
 Shock absorbers are an important part of automobile and motorcycle
suspensions, aircraft landing gear, and the supports for many industrial
machines.
 Large shock absorbers have also been used in structural engineering to
reduce the susceptibility of structures to earthquake damage and
resonance.
 A transverse mounted shock absorber, called a yaw damper, helps keep
railcars from swaying excessively from side to side and are important in
passenger railroads, commuter rail and rapid transit systems because they
prevent railcars from damaging station platforms.

5. Shock Absorber types
There are a number of different methods of converting an impact
/collision into relatively smooth cushioned contact..
 Metal Spring
 Rubber Buffer
 Hydraulic Dashpot
 Collapsing safety Shock Absorbers
 Pneumatic Cylinders
 Self compensating Hydraulic

9. REFERENCES
1. Zhonghong Bu, Geng Liu, Liyan Wu; “Modal analyses of herringbone
planetary gear train with journal bearings Mechanism and Machine
Theory”, Volume 54, August 2012, Pages 99– 115
2. Sachin M. Kamble, Abhishek Chaubey; “Stress Analysis of
Herringbone Gear by Using FEA”, www.ijert.org, Vol.2 - Issue 10
(October - 2013), e-ISSN: 2278-0181
3. Mr. Chirag R Patel, Mr. Samir D. Jarivala, Mr. Charmis Rajput;
“Meshing Stiffness and Stress Analysis of Helical Gear of C45 in
Dynamic Condition using Analysing Software”, International Journal
for Research in Technological Studies| Vol. 1, Issue 6, May 2014 | ISSN
(online): 2348-1439

10. THANK YOU