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Mechanics of flow-induced sound and vibration. volume 1, General concepts and elementary sources /
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
San Diego, CA :
Academic Press,
2017.
|
| Edición: | Second edition. |
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; Mechanics of Flow-Induced Sound and Vibration, Volume 1; Copyright Page; Dedication; Contents; Preface to the Second Edition; Preface to the First Edition; List of Symbols; 1 Introductory Concepts; 1.1 Occurrences of Noise Induced by Flow; 1.2 Fluid-Body Interactions for Sound Production; 1.3 Dimensional Analysis of Sound Generation; 1.4 Signal Analysis Tools of Vibration and Sound; 1.4.1 A Simple Example of an Acoustic Radiator; 1.4.2 Fundamentals of Correlation Analysis; 1.4.2.1 A Simple Example of Classical Correlation Analysis
- 1.4.2.2 Correlation Functions of Steady-State Signals1.4.2.2.1 Periodic Signals; 1.4.2.2.2 Random Signals; 1.4.3 Review of Fourier Series and the Fourier Integral; 1.4.3.1 Periodic Signals; 1.4.3.2 Random Signals; 1.4.4 Conclusions of Simple Filtering Theory; 1.4.4.1 Descriptions of Linear Bandpass Filters; 1.4.4.2 Spatial Filtering and Wave Number Transformations; 1.4.4.3 Notes on Error Analysis; 1.5 Representations of Measured Sound; 1.5.1 Sound Levels; 1.5.1.1 Sound Pressure Level; 1.5.1.2 The Use of Dynamic Fluid Pressure in Nondimensionalizing Sound Pressure
- 1.5.1.3 The Use of Transfer Functions1.5.2 An Example of the Use of Nondimensional Spectrum Levels for Scaling; 1.6 Mathematical Refresher; 1.6.1 Coordinate Systems; 1.6.2 Differential Operators; 1.6.3 Integral Theorems; 1.6.4 Dirac Delta Function; References; 2 Theory of Sound and its Generation by Flow; 2.1 Fundamentals of Linear Acoustics Theory; 2.1.1 The Wave Equation; 2.1.2 Acoustic Plane Waves and Intensity; 2.1.3 Fundamental Characteristics of Multipole Radiation; 2.1.3.1 Monopole Sources; 2.1.3.2 Dipole Sources; 2.1.3.3 Quadrupole Sources; 2.1.3.4 Average Acoustic Intensity
- 2.2 Sommerfeld's Radiation Condition2.3 Lighthill's Theory of Aerodynamic Noise; 2.3.1 The Wave Equation; 2.3.2 Kirchhoff's Integral Equation and the Retarded Potential; 2.3.3 Acoustic Radiation From a Compact Region of Free Turbulence; 2.4 Effects of Surfaces on Flow-Induced Noise; 2.4.1 Curle's Development of Lighthill's Wave Equation; 2.4.2 Illustration I of Curle's Equation: Radiation from a Concentrated Hydrodynamic Force; 2.4.3 Illustration II of Curle's Equation: Radiation from a Heaving Sphere; 2.4.4 Powell's Reflection Theorem; 2.5 Effects of Source Motion on Flow-Induced Noise
- 2.6 Powell's Theory of Vortex Sound2.6.1 General Implications; 2.6.2 Derivation of the Wave Equation With Vortical Sources; 2.6.3 The Physical Significance of the Vorticity Source; 2.6.4 The Effect of Solid Boundaries on Vortex Sound; 2.6.5 Relationships Between the Powell and the Lighthill-Curle Theories; 2.7 Representations in the Frequency and Wave Number Domains; 2.7.1 The Helmholtz Integral Equation; 2.7.2 Generalized Transforms and Stochastic Variables; 2.7.3 Equivalent Integral Representation for the Acoustic Pressure; 2.8 Sources in Ducts and Pipes; 2.8.1 Elementary Duct Acoustics