Vibration Damping, Control, and Design

Reducing and controlling the level of vibration in a mechanical system leads to an improved work environment and product quality, reduced noise, more economical operation, and longer equipment life. Adequate design is essential for reducing vibrations, while damping and control methods help further reduce and manipulate vibrations when design strategies reach their limits. There are also useful types of vibration, which may require enhancement or control. Vibration Damping, Control, and Design balances theoretical and application-oriented coverage to enable optimal vibration and noise suppression and control in nearly any system.Drawn from the immensely popular Vibration and Shock Handbook, each expertly crafted chapter of this book includes convenient summary windows, tables, graphs, and lists to provide ready access to the important concepts and results. Working systematically from general principles to specific applications, coverage spans from theory and experimental techniques in vibration damping to isolation, passive control, active control, and structural dynamic modification. The book also discusses specific issues in designing for and controlling vibrations and noise such as regenerative chatter in machine tools, fluid-induced vibration, hearing and psychological effects, instrumentation for monitoring, and statistical energy analysis. This carefully edited work strikes a balance between practical considerations, design issues, and experimental techniques.Complemented by design examples and case studies, Vibration Damping, Control, and Design builds a deep understanding of the concepts and demonstrates how to apply these principles to real systems.

Vibration Damping	p. 1
Introduction	p. 1
Types of Damping	p. 2
Representation of Damping in Vibration Analysis	p. 9
Measurement of Damping	p. 16
Interface Damping	p. 26
Damping Theory	p. 1
Preface	p. 2
Introduction	p. 4
Background	p. 12
Hysteresis - More Details	p. 19
Damping Models	p. 20
Measurements of Damping	p. 23
Hysteretic Damping	p. 27
Failure of the Common Theory	p. 29
Air Influence	p. 30
Noise and Damping	p. 31
Transform Methods	p. 34
Hysteretic Damping	p. 36
Internal Friction	p. 41
Mathematical Tricks - Linear Damping Approximations	p. 43
Internal Friction Physics	p. 44
Zener Model	p. 45
Toward a Universal Model of Damping	p. 48
Nonlinearity	p. 58
Concluding Remark	p. 65
Experimental Techniques in Damping	p. 1
Electronic Considerations	p. 2
Data Processing	p. 3
Sensor Choices	p. 7
Damping Examples	p. 8
Driven Oscillators with Damping	p. 19
Oscillator with Multiple Nonlinearities	p. 21
Multiple Modes of Vibration	p. 24
Internal Friction as Source of Mechanical Noise	p. 28
Viscous Damping - Need for Caution	p. 29
Air Influence	p. 31
Structure and Equipment Isolation	p. 1
Introduction	p. 2
Mechanisms of Base-Isolated Systems	p. 4
Structure-Equipment Systems with Elastomeric Bearings	p. 9
Sliding Isolation Systems	p. 17
Sliding Isolation Systems with Resilient Mechanism	p. 36
Issues Related to Seismic Isolation Design	p. 50
Vibration Control	p. 1
Introduction	p. 1
Vibration-Control Systems Concept	p. 4
Vibration-Control Systems Design and Implementation	p. 12
Practical Considerations and Related Topics	p. 38
Helicopter Rotor Tuning	p. 1
Introduction	p. 1
Neural Network-Based Tuning	p. 4
Probability-Based Tuning	p. 5
Adaptive Tuning	p. 8
Case Study	p. 12
Conclusion	p. 17
Vibration Design and Control	p. 1
Introduction	p. 2
Specification of Vibration Limits	p. 3
Vibration Isolation	p. 5
Balancing of Rotating Machinery	p. 15
Balancing of Reciprocating Machines	p. 26
Whirling of Shafts	p. 33
Design through Modal Testing	p. 39
Passive Control of Vibration	p. 45
Active Control of Vibration	p. 61
Control of Beam Vibrations	p. 67
MATLAB Control Systems Toolbox	p. 73
Structural Dynamic Modification and Sensitivity Analysis	p. 1
Introduction	p. 2
Structural Dynamic Modification of Finite Element Model	p. 2
Perturbation Method of Vibration Modes	p. 4
Design Sensitivity Analysis of Structural Vibration Modes	p. 8
High-Accuracy Modal Superposition for Sensitivity Analysis of Modes	p. 11
Sensitivity of Eigenvectors for Free-Free Structures	p. 13
Matrix Perturbation Theory for Repeated Modes	p. 14
Matrix Perturbation Method for Closely Spaced Eigenvalues	p. 16
Matrix Perturbation Theory for Complex Modes	p. 22
Vibration in Rotating Machinery	p. 1
Introduction	p. 1
Vibration Basics	p. 6
Rotordynamic Analysis	p. 18
Vibration Measurement and Techniques	p. 39
Vibration Control and Diagnostics	p. 39
Regenerative Chatter in Machine Tools	p. 1
Introduction	p. 1
Chatter in Turning Operations	p. 3
Chatter in Face-Milling Operations	p. 9
Time-Domain Simulation	p. 14
Chatter Detection	p. 18
Chatter Suppression	p. 20
Case Study	p. 24
Fluid-Induced Vibration	p. 1
Description of the Ocean Environment	p. 1
Fluid Forces	p. 16
Examples	p. 23
Sound Levels and Decibels	p. 1
Introduction	p. 1
Sound Wave Characteristics	p. 1
Levels and Decibels	p. 3
Hearing and Psychological Effects	p. 1
Introduction	p. 1
Structure and Function of the Ear	p. 1
Frequency and Loudness Response	p. 2
Hearing Loss	p. 4
Psychological Effects of Noise	p. 4
Noise Control Criteria and Regulations	p. 1
Introduction	p. 1
Basic Ideas behind Noise Policy	p. 1
Legislation	p. 2
Regulation	p. 4
Measures of Noise Evaluation	p. 5
Instrumentation	p. 1
Sound Intensity Measurement	p. 1
Mirror-Microphone System	p. 4
Microphone Array	p. 6
Source of Noise	p. 1
Introduction	p. 1
Radiation of Sound	p. 1
Design of Absorption	p. 1
Introduction	p. 1
Fundamentals of Sound Absorption	p. 2
Sound-Absorbing Materials	p. 3
Acoustic Characteristic Computation of Compound Wall	p. 6
Attenuation of Lined Ducts	p. 10
Attenuation of Dissipative Mufflers	p. 12
General Considerations	p. 15
Practical Example of Dissipative Muffler	p. 17
Design of Reactive Mufflers	p. 1
Introduction	p. 1
Fundamental Equations	p. 2
Effects of Reactive Mufflers	p. 3
Calculation Procedure	p. 5
Application Range of Model	p. 6
Practical Example	p. 13
Design of Sound Insulation	p. 1
Theory of Sound Insulation	p. 1
Application of Sound Insulation	p. 13
Statistical Energy Analysis	p. 1
Introduction	p. 1
Power Flow Equations	p. 2
Estimation of SEA Parameters	p. 4
Application in Structures	p. 7
Index	p. I-1
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