Fundamentals of Noise and Vibration Analysis For Engineers: Second Edition
Fundamentals of Noise and Vibration Analysis For Engineers: Second Edition
Fundamentals of Noise and Vibration Analysis For Engineers: Second Edition
M, P. Norton
School of Mechanical Engineering, University of Western Australia
and
P. G. Karczub
S.V.T. Engineering Consultants, Perth, Western Australia
CAMBRIDGE
UNIVERSITY PRESS
Contents
Preface page xv
Acknowledgements xvii
Introductory comments xviii
1.1 Introduction 1
1.2 Introductory wave motion concepts — an elastic continuum viewpoint 3
1.3 Introductory multiple, discrete, mass—spring-damper oscillator concepts -
a macroscopic viewpoint 8
1.4 Introductory concepts on natural frequencies, modes of vibration, forced
vibrations and resonance 10
1.5 The dynamics of a single oscillator - a convenient model 12
1.5.1 Undamped free vibrations 12
1.5.2 Energy concepts 15
1.5.3 Free vibrations with viscous damping 16
1.5.4 Forced vibrations: some general comments 21
1.5.5 Forced vibrations with harmonic excitation 22
1.5.6 Equivalent viscous-damping concepts - damping in real systems 30
1.5.7 Forced vibrations with periodic excitation 32
1.5.8 Forced vibrations with transient excitation 33
1.6 Forced vibrations with random excitation 37
1.6.1 Probability functions 38
1.6.2 Correlation functions 39
1.6.3 Spectral density functions 41
1.6.4 Input-output relationships for linear systems 42
1.6.5 The special case of broadband excitation of a single oscillator 50
1.6.6 A note on frequency response functions and transfer functions 52
1.7 Energy and power flow relationships 52
vii
viii Contents
Problems 566
Appendix 1: Relevant engineering noise and vibration control journals 599
Appendix 2: Typical sound transmission loss values and sound absorption
coefficients for some common building materials 600
Appendix 3: Units and conversion factors 603
Appendix 4: Physical properties of some common substances 605
Index 621