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Vibration isolation is one of the methods by which engineers combat the problem of harmonic resonance. It is the purpose of this lab to investigate how the resultant force of vibrations acting in a mechanical device may vary

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  • Essay length: 1858 words
  • Submitted: 20/06/2006
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University Degree Engineering

The first 200 words of this essay...

Dynamics & Control

Vibration Isolation

William Annal

Reg: 200334440

Contents

Introduction 3

Theory 3

Experimental Work: 5

Procedure 5

Measurements 5

Calculations 6

Results 6

Discussions & Conclusions 7

Appendices

A 9

B 10

Introduction

Vibration isolation is one of the methods by which engineers combat the problem of harmonic resonance. It is the purpose of this lab to investigate how the resultant force of vibrations acting in a mechanical device may vary according to the frequency of oscillation that the device is subjected to, and how this relates to the natural frequency of the device.

Theory

Harmonic Resonance is the condition under which a mechanical device or structure is subjected to vibratory oscillations, the frequency of which, match the natural frequency of the device or structure. Under such conditions extreme amplitudes of vibration may be achieved and in some circumstances the structure may literally be shaken or shake itself to pieces.

Vibrations of relevance are categorised into three main types; Free or natural vibrations, forced vibrations and self-excited vibrations.

Free or natural vibrations are a

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