Table of Contents

Cover image

Title page

Copyright

Dedication

Preface

Acknowledgements

Chapter 1: Basic Concepts

1.1 Statics, dynamics and structural dynamics

1.2 Coordinates, displacement, velocity and acceleration

1.3 Simple harmonic motion

1.4 Mass, stiffness and damping

1.5 Energy methods in structural dynamics

1.6 Linear and non-linear systems

1.7 Systems of units

Chapter 2: The Linear Single Degree of Freedom System: Classical Methods

2.1 Setting up the differential equation of motion

2.2 Free response of single-DOF systems by direct solution of the equation of motion

2.3 Forced response of the system by direct solution of the equation of motion

Chapter 3: The Linear Single Degree of Freedom System: Response in the Time Domain

3.1 Exact analytical methods

3.2 ‘Semi-analytical’ methods

3.3 Step-by-step numerical methods using approximate derivatives

3.4 Dynamic factors

3.5 Response spectra

Chapter 4: The Linear Single Degree of Freedom System: Response in the Frequency Domain

4.1 Response of a single degree of freedom system with applied force

4.2 Single-DOF system excited by base motion

4.3 Force transmissibility

4.4 Excitation by a rotating unbalance

Chapter 5: Damping

5.1 Viscous and hysteretic damping models

5.2 Damping as an energy loss

5.3 Tests on damping materials

5.4 Quantifying linear damping

5.5 Heat dissipated by damping

5.6 Non-linear damping

5.7 Equivalent linear dampers

5.8 Variation of damping and natural frequency in structures with amplitude and time

Chapter 6: Introduction to Multi-degree-of-freedom Systems

6.1 Setting up the equations of motion for simple, undamped, multi-DOF systems

6.2 Matrix methods for multi-DOF systems

6.3 Undamped normal modes

6.4 Damping in multi-DOF systems

6.4.4 Proportional Damping

6.5 Response of multi-DOF systems by normal mode summation

6.6 Response of multi-DOF systems by direct integration

Chapter 7: Eigenvalues and Eigenvectors

7.1 The eigenvalue problem in standard form

7.2 Some basic methods for calculating real eigenvalues and eigenvectors

7.3 Choleski factorization

7.4 More advanced methods for extracting real eigenvalues and eigenvectors

7.5 Complex (damped) eigenvalues and eigenvectors

Chapter 8: Vibration of Structures

8.1 A historical view of structural dynamics methods

8.2 Continuous systems

8.3 Component mode methods

8.4 The finite element method

8.5 Symmetrical structures

Chapter 9: Fourier Transformation and Related Topics

9.1 The Fourier series and its developments

9.2 The discrete Fourier transform

9.3 Aliasing

9.4 Response of systems to periodic vibration

Chapter 10: Random Vibration

10.1 Stationarity, ergodicity, expected and average values

10.2 Amplitude probability distribution and density functions

10.3 The power spectrum

10.4 Response of a system to a single random input

10.5 Correlation functions and cross-power spectral density functions

10.6 The Response of structures to random inputs

10.7 Computing power spectra and correlation functions using the discrete Fourier transform

10.8 Fatigue due to random vibration

Chapter 11: Vibration Reduction

11.1 Vibration isolation

11.2 The dynamic absorber

11.3 The damped vibration absorber

11.3.1 The Springless Vibration Absorber

Chapter 12: Introduction to Self-Excited Systems

12.1 Friction-induced vibration

12.2 Flutter

12.3 Landing gear shimmy

Chapter 13: Vibration testing

13.1 Modal testing

13.2 Environmental vibration testing

13.3 Vibration fatigue testing in real time

13.4 Vibration testing equipment

A Short Table of Laplace Transforms

Calculation of Flexibility Influence Coefficients

Acoustic Spectra

Index

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