Shock Absorber Lab Report

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CHAPTER 1
INTRODUCTION

1.1 BACKGROUND

Shock absorber has the function of dissipating any energy in the vertical motion of the body of the vehicle cause by disturbances such as rough roads and driving conditions. This is achieved by converting the up and down motion of the vehicle into heat energy, by means of hydraulic oil, which eventually will be release to the surrounding. The shock absorber also can provide a driver with comfortable driving conditions as well as able to reduce the rate of swaying, bouncing and the motion due to sudden braking and accelerating.
There are various types of dampers exist which are used commonly in vehicles and hydraulic machines today, mainly categorized as the mono-tube and the twin-tube dampers. The twin-tube
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To analyse the flow pattern inside the shock absorber valves (shim stack) using fluid structure interaction analysis

2. To model the behaviour and physics of the shock absorber valves using finite element analysis software system

3. To describe the practical aspects of the simulation process and the results of the simulation

1.3 PROJECT OUTCOMES

Upon completion of this project, we should be able to :
1. Run a complete simulation on the shock absorber valves based on the fluid structure interaction analysis using finite element analysis (FEA) software

2. Explain and describe the flow analysis inside the shock absorber valves based on the orientation and deflection of the valves

3. Present graphical outputs of the simulation data based on different aspects of the study and suggests a new way to improve the performance of the shock absorber CHAPTER 2
LITERATURE
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A study conducted by Czop, Gasiorek, Gnilka, Slawik and Wszolek (2012) has the purpose of simulating a fluid structure-based simulation of valve system which used in hydraulic dampers of shock absorbers and to optimize the design of the valve system. He presented the simulation process as well as the results of the interaction of the fluid flow and the structure of the valve system in the damper in order to identify the local pressure drop which can lead to aeration and cavitation effects in the system. Several practical aspects of the simulation such as the parameters and boundary conditions are also emphasized in the simulation

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