Acoustic Interactions with Submerged Elastic Structures - Part III : Acoustic Propagation and Scattering, Wavelets and Time Frequency Analysis.
Title:
Acoustic Interactions with Submerged Elastic Structures - Part III : Acoustic Propagation and Scattering, Wavelets and Time Frequency Analysis.
Author:
Guran, Ardéshir.
ISBN:
9789812810755
Personal Author:
Physical Description:
1 online resource (443 pages)
Series:
Series on Stability, Vibration and Control of Systems, Series B ; v.5
Series on Stability, Vibration and Control of Systems, Series B
Contents:
Contents -- Foreword -- Preface -- Contributors -- Chapter 1: Three Dimensional Underwater Sound Propagation Over Sloping Bottoms -- 1. Introduction -- 2. The Ideal Wedge -- 3. The Penetrable Wedge -- 4. Laboratory Scale Experiments -- 5. Ocean Acoustic Experiments -- 6. Conclusion -- 7. Acknowledgments -- 8. References -- Chapter 2: Modeling of Sound Propagation over a Shear-Supporting Sediment Layer and Substrate -- 1. Introduction -- 2. Results -- 3. Summary -- 4. Acknowledgements -- 5. References -- Chapter 3: Propagation of Acoustic Pulses in Layered Media -- 1. Introduction -- 2. One Layer -- 3. Treatment of Interfaces -- 4. Numerical Techniques -- 5. Acknowledgments -- 6. References -- Chapter 4: Response of a Vibrating Structure to a Turbulent Flow Wall Pressure: Fluid-Loaded Structure Modes Series and Boundary Element Method -- 1. Introduction -- 2. Vibro-Acoustic Response of a Baffled Plate to a Deterministic Excitation -- 3. Vibro-Acoustic Response of the System Baffled Plate - Fluid to a Random Excitation -- 4. Vibro-Acoustic Response of a Baffled Plate Closing a Cavity and Excited by a Deterministic Harmonic Force or a Random Wall Pressure -- 5. Numerical Solution of the Boundary Integral Equations for the Fluid Loaded Structure Problems and Examples -- 6. Concluding Remarks -- 7. Acknowledgements -- 8. References -- Chapter 5: Plane Evanescent Waves and Interface Waves -- 1. Introduction -- 2. The Evanescent Plane Wave Formalism -- 3. The Plane Elastic Solid / Perfect Fluid Interface -- 4. The Plane Elastic Plate in a Perfect Fluid -- 5. Angular Resonances and Guided Waves -- 6. Conclusion -- 7. References -- Chapter 6: Application of Wavelet Analysis to Inverse Scattering -- 1. Introduction -- 2. Wavelet Analysis.
3. Comparison of Fourier and Wavelet Signal Pulse Reconstruction -- 4. Wave Analysis Compression Applied to an Inverse Scattering Formalism -- 5. Earlier Applications of Wavelet Analysis to Inverse Scattering -- 6. Acknowledgements -- 7. References -- Chapter 7: Application of Time-Frequency Analysis to the Characterization of Acoustical Scattering -- 1. Introduction -- 2. Motivation of a Time-Frequency Approach: The Example of a Spherical Shell -- 3. Time-Frequency Analysis Methods -- 4. Simulations Results -- 5. Experimental Results -- 6. Conclusion -- 7. Acknowledgments -- 8. References -- Chapter 8: Acoustical Resonance Scattering Theory for Strongly Overlapping Resonances -- 1. Introduction -- 2. Scattering Resonances -- 3. Properties of the Scattering Function -- 4. Resonances, Cross Sections and Ringing -- 5. Detection of Resonances -- 6. Measurements with Full-Scale Objects -- 7. R-Matrix Theory -- 8. Model Function for Statistically Overlapping Resonances -- 9. Conclusion -- 10. Acknowledgements -- 11. References -- Chapter 9: Inverse Scattering Based on the Resonances of the Target -- 1. Introduction and Historical Remarks -- 2. Target Recognition -- 3. Conclusion -- 4. Acknowledgements -- 5. References -- Chapter 10: Modern Developments in the Theory and Application of Classical Scattering -- 1. Introduction -- 2. A Mathematical Formulation of Classical Scattering -- 3. Notions Useful in the Interpretation of Scattering Events -- 4. Application and Interpretation of Physical Results -- 5. Concluding Remarks -- 6. References -- Chapter 11: Modeling and Ultrasonic Measurements of Damage -- 1. Introduction -- 2. Description of Damage -- 3. Constitutive Equations -- 4. Ultrasonic Characterization -- 5. Experimental Results -- 6. Conclusion -- 7. References.
Chapter 12: Some Aspects of Nonlinear Wave Propagation -- 1. Waves, Linearity and the Interpretation of Derivatives -- 2. The Effect of Nonlinearity -- 3. Hyperbolicity and Conservation Laws -- 4. Riemann Invariants, Simple Waves and Generalized Simple Waves -- 5. Discontinuous Solutions, Shocks and Generalized Simple Waves -- 6. The Riemann Problem and the Random Choice Method -- 7. Burgers Equation -- 8. The KdV Equation and Solitons -- 9. The Reductive Perturbation Method -- 10. Backlund Transformations -- 11. Travelling Wave Solutions for the mKdV Equation -- 12. References -- Subject Index.
Abstract:
The interaction of acoustic fields with submerged elastic structures, both by propagation and scattering, is being investigated at various institutions and laboratories world-wide with ever-increasing sophistication of experiments and analysis. This book offers a collection of contributions from these research centers that represent the present state-of-the-art in the study of acoustic elastic interaction, being on the cutting edge of these investigations. This includes the description of acoustic scattering from submerged elastic objects and shells by the Resonance Scattering Theory of Flax, Dragonette and Überall, and the interaction of these phenomena in terms of interface waves. It also includes the use of this theory for the purpose of inverse scattering, i.e. the determination of the scattered objects properties from the received acoustic backscattered signals. The problem of acoustically excited waves in inhomogeneous and anisotropic materials, and of inhomogeneous propagating waves is considered. Vibrations and resonances of elastic shells, including shells with various kinds of internal attachments, are analyzed. Acoustic scattering experiments are described in the time domain, and on the basis of the WignerNobel LaureateVille distribution. Acoustic propagation in the water column over elastic boundaries is studied experimentally both in laboratory tanks, and in the field, and is analyzed theoretically. Ultrasonic nondestructive testing, including such aspects like probe modelling, scattering by various types of cracks, receiving probes and calibration by a side-drilled hole is also studied in details. A comprehensive picture of these complex phenomena and other aspects is presented in the book by researchers that are experts in each of these domains, giving up-to-date accounts of the field in all these aspects. Contents: Three
Dimensional Underwater Sound Propagation Over Sloping Bottoms (S A L Glegg & J M Riley); Modeling of Sound Propagation Over a Shear-Supporting Sediment Layer and Substrate (J I Arvelo et al.); Propagation of Acoustic Pulses in Layered Media (P P Delsanto et al.); Response of a Vibrating Structure to a Turbulent Flow Wall Pressure: Fluid-Loaded Structure Modes Series and Boundary Element Method (P J T Filippi & D Mazzoni); Plane Evanescent Waves and Interface Waves (F Luppé et al.); Application of Wavelet Analysis to Inverse Scattering (W Tobocman); Application of Time-Frequency Analysis to the Characterization of Acoustical Scattering (M E Zakharia et al.); Acoustical Resonance Scattering Theory for Strongly Overlapping Resonances (H Peine & D Guicking); Inverse Scattering Based on the Resonances of the Target (P P Delsanto et al.); Modern Developments in the Theory and Application of Classical Scattering (M F Werby & N A Sidorovskaia); Modeling and Ultrasonic Measurements of Damage (A Gérard); Some Aspects of Nonlinear Wave Propagation (A Jeffrey). Readership: Nonlinear scientists.
Local Note:
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2017. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.
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