Structure-borne Sound

by ; ;
Edition: 3rd
Format: Hardcover
Pub. Date: 2005-03-14
Publisher(s): Springer Verlag
List Price: $249.99

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Summary

Structure-Borne Sound" is a thorough introduction to structural vibrations with emphasis on audio frequencies and the associated radiation of sound. The book presents in-depth discussions of fundamental principles and basic problems, in order to enable the reader to understand and solve his own problems. It includes chapters dealing with measurement and generation of vibrations and sound, various types of structural wave motion, structural damping and its effects, impedances and vibration responses of the important types of structures, as well as with attenuation of vibrations, and sound radiation from structures. For the third edition, the author fundamentally revised and newly organized the contents of the work. Nevertheless, the intention has been to preserve the style of the previous editions, namely to focus on the fundamentals enabling the reader to analyse further problems.

Table of Contents

Introduction
1(3)
A Little Dynamics
4(23)
Single-Degree-of-Freedom Systems
4(5)
Lagrange's Equations
9(9)
Reciprocity and Mutual Energy
18(2)
Modal Synthesis
20(1)
Energy Considerations
20(7)
Minimization of the Average Energy Difference (Hamilton's Principle)
22(2)
The Rayleigh Quotient
24(1)
References
25(2)
Survey of Wave Types and Characteristics
27(122)
Longitudinal Waves
27(12)
Pure Longitudinal Waves
27(6)
Quasi-Longitudinal Waves on Beams and Plates
33(6)
Transverse Waves
39(10)
Transverse Plane Waves
39(5)
Torsional Waves
44(5)
Bending Waves
49(11)
Pure Bending Waves
49(9)
Energy Relations
58(2)
Wave Motions on Beams of Finite Length
60(14)
Longitudinal Natural Vibrations
61(6)
Natural Vibrations in Bending
67(7)
The General Field Equations
74(10)
Wave Field at a Free Surface
84(15)
Reflection of Plane Waves
84(9)
Excitation of an Elastic Half-Space
93(3)
Surface Waves
96(3)
Free Plate Waves
99(21)
Boundary Conditions and Types of Solutions
99(2)
Waves with Displacements only Parallel to the Surface
101(2)
Waves with Displacements Perpendicular to the Surface
103(6)
Equations of Motion for Thin Plates from the General Field Equations
109(11)
Hamilton's Principle for the Derivation of the Equations of Motion
120(20)
Fundamentals
120(1)
Flat Plate with Shear Stiffness (The Corrected Bending Wave)
121(5)
Cylindrical Shells
126(14)
Structure-Borne Sound Intensity
140(9)
Fundamental Equations
140(1)
Intensity in this Plates
141(4)
Power Transmission in Thin-Walled Cylindrical Shells
145(2)
References
147(2)
Damping
149(87)
Damping Mechanisms and their Mathematical Description
149(4)
Complex Modulus and Wavenumbers
153(8)
Resonant Vibrations of Damped Beams
161(12)
Quasi-Longitudinal Waves and Torsional Waves
162(7)
Bending Waves
169(4)
Measurement of Complex Moduli
173(18)
Measurements on Small Samples
174(9)
Measurements on Beams
183(7)
Measurements on Other than Beam-Like Samples
190(1)
Experimental Data
191(6)
Metals
191(2)
Plastics
193(3)
Building Materials
196(1)
Plates with Attached Layers
197(20)
Plates with Simple, Extensionally Loaded Layers
197(4)
Plates with Multi-Layer Treatments
201(7)
Equations of Motion of Layered Plates
208(9)
Damping by means of Resonant Systems
217(8)
Damping by Thick Layers (Ballast)
223(2)
Damping at Joints
225(11)
Damping by Relative Motion Normal to the Interface
226(4)
Damping by Relative Motion Tangential to the Interface
230(2)
References
232(4)
Impedance and Mobility
236(105)
Definitions
236(2)
Measurement of Mobilities (Impedances)
238(6)
Registration of Force and Velocity
238(2)
Comparison with Know Mobilities
240(2)
Other Measurement Methods
242(2)
Input Mobility of Infinite Rods, Beams and Plates
244(12)
Excitation of Quasi-Longitudinal Waves in Rods
244(1)
Excitation of Bending Waves in Beams
245(6)
Point Mobility of a Homogeneous Plate
251(5)
Wave Impedance, Wave Mobility
256(21)
Calculation of Wave Impedances and Wave Mobilities
256(1)
Examples
257(3)
Relation between Wave Mobility and Point Mobility
260(12)
Moment Mobilities
272(3)
Calculation of Impulse Response
275(2)
Power Transmission to Infinite, Plane Structures
277(9)
Determination of Structure-Borne Sound Power
277(3)
Relationship with the Point Mobility
280(3)
Interpretations and Examples
283(3)
Summary of Impedance and Mobility Formulae; Approximations
286(3)
Point-Excitation of Finite Systems
289(17)
General Properties
290(4)
Some Applications
294(4)
Power Considerations
298(8)
Some Specific Applications
306(35)
Impact Excitation
306(11)
Excitation by Sudden Release of Potential Energy
317(2)
Rough Surfaces as Sources of Structure-Borne Sound
319(3)
Parametric Excitation
322(4)
Vibration Transmission from Machinery
326(12)
References
338(3)
Attenuation of Structure-Borne Sound
341(108)
Material and Cross-Sectional Changes
341(7)
Attenuation of Longitudinal Waves
342(2)
Attenuation of Bending Waves
344(4)
Right-Angled Corners and Branches
348(11)
Incident Bending Wave
348(5)
Incident Longitudinal Wave
353(1)
Right Angled Branches with Incident Bending and Longitudinal Waves
354(5)
Elastic Interlayers
359(8)
Attenuation of Longitudinal Waves
360(3)
Attenuation of Bending Waves
363(4)
Blocking Masses
367(9)
Attenuation of Longitudinal Waves
368(1)
Attenuation of Bending Waves -- Symmetric Blocking Masses
368(5)
Attenuation of Bending Waves -- Eccentric Blocking Masses
373(3)
Periodic Structures
376(16)
Periodic Mass-Spring Systems
376(4)
Attenuation of Longitudinal Waves
380(5)
Periodic Bending Wave-Guide
385(7)
Hamilton's Principle for Transmission Problems
392(10)
Procedure
392(2)
An Introductory Example
394(3)
Bending and Longitudinal Waves at an Eccentric Blocking Mass
397(5)
Oblique Incidence
402(20)
General Considerations
402(3)
General Consequences of the Boundary Conditions
405(4)
Examples
409(11)
Application of Hamilton's Principle
420(2)
Parallel Plates
422(8)
Continuous Coupling by Elastic Interlayers
422(5)
Point-Like Sound Bridges
427(3)
Statistical Energy Analysis (SEA)
430(19)
Analogies to Statistical Room Acoustics
430(4)
Energy Flow between Linearly Coupled Oscillators
434(3)
Estimation of Coupling Loss Factors
437(7)
Application
444(3)
References
447(2)
Sound Radiation from Structures
449(87)
Measurement of Radiated Power
449(2)
Definition and Measurement of Radiation Efficiency
451(2)
Radiation Loss Factor
453(2)
Elementary Radiators
455(17)
Spherical Radiators
455(3)
Dipole Radiators and Radiation from Forces
458(3)
Infinite Plates
461(4)
Cylindrical Radiators
465(4)
Impulsive Sources
469(3)
Plane, Baffled Radiators
472(11)
The Plane Radiator as a Sum of Point Sources
473(6)
Plane Radiators as Sum of Plane Waves
479(4)
Radiation from Bending Waves
483(25)
Semi-infinite plate
483(6)
Modal Radiation
489(3)
Radiation from Externally Excited Bending Waves
492(5)
Comparison with Experiments
497(4)
Additional Remarks on Structure-Borne Sound Radiation
501(7)
Fluid-Borne Sound Excitation of Structures
508(7)
Transmission Loss of Single Leaf Wall
508(4)
Double Walls with Sound Bridges
512(3)
Relation between Radiation and Response
515(10)
Reciprocity
515(1)
Response and Radiation in a Reverberant Room
516(3)
Directivity by Excitation and Radiation
519(1)
Sound Transmission above the Critical Frequency
520(4)
Transmission Loss in the Vicinity of the Critical Frequency
524(1)
Application of Statistical Energy Analysis
525(11)
Flanking Transmission
525(3)
Double Walls
528(3)
Multi-Layered Walls with Several Rigid Connections
531(2)
References
533(3)
Generation and Measurement of Structure-Borne Sound
536(57)
Mechanical Measurement Methods
536(17)
Registration of Motion
536(2)
Comparison with Known Mobilities
538(3)
Mechanical Transducers as Damped Mass-Spring Systems
541(4)
Interaction of Transducer and Measurement Object
545(7)
Immobile Reference and Rigid Termination
552(1)
Controllable Sensors
553(7)
Electrical Sensors
553(5)
Optical Sensors
558(2)
Excitation and Measurement of Structure-Borne Sound
560(29)
Electro-Dynamic Transducers
561(10)
Piezo-Electric Transducers
571(7)
Electro-Static Transducers
578(5)
Electro-Magnetic Transducers
583(2)
Magnetostrictive Transducers
585(1)
Elaboration on Reciprocal Transducers
586(3)
Combined Quantities
589(4)
References
591(2)
List of Symbols and Notation 593(5)
Index 598

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