Fourier Acoustics

Fourier Acoustics

Author: Earl G. Williams

Publisher: Academic Press

Published: 1999-06-16

Total Pages: 324

ISBN-13: 9780127539607

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Fourier Acoustics develops the theory of sound radiation completely from the viewpoint of Fourier analysis. This powerful perspective of sound radiation provides the reader with a comprehensive and practical understanding which will enable him or her to diagnose and solve sound and vibration problems of the 21st century. As a result of this perspective, Fourier Acoustics is able to present thoroughly and simply, for the first time in book form, the theory of nearfield acoustical holography, an important technique which has revolutionized the measurement of sound. The book includes: The physics of wave propagation and sound radiation in homogeneous media Acoustics, such as radiation of sound, and radiation from vibrating surfaces Inverse problems, for example the thorough development of the theory of nearfield acoustical holography Mathematics of specialized functions, such as spherical harmonics The author is an internationally recognized acoustician whose pioneering research in the field of nearfield acoustical holography has impacted acoustics research and development throughout the world. Dr. Williams' research has been formally recognized by NRL as one of its most innovative technologies over the past 75 years. Relying little on material outside the book, Fourier Acoustics will be invaluable as a graduate level text as well as a reference for researchers in academia and industry. The book is unique amongst acoustics texts, it is well illustrated and it includes exercises to enforce the theory.


Radiation Acoustics

Radiation Acoustics

Author: Leonid M. Lyamshev

Publisher: CRC Press

Published: 2004-04-14

Total Pages: 381

ISBN-13: 0203402707

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Radiation acoustics is a developing field lying at the intersection of acoustics, high-energy physics, nuclear physics, and condensed matter physics. Radiation Acoustics is among the first books to address this promising field of study, and the first to collect all of the most significant results achieved since research in this area began in earnest in the 1970s. The book begins by reviewing the data on elementary particles, absorption of penetrating radiation in a substance, and the mechanisms of acoustic radiation excitation. The next seven chapters present a theoretical treatment of thermoradiation sound generation in condensed media under the action of modulated penetrating radiation and radiation pulses. The author explores particular features of the acoustic fields of moving thermoradiation sound sources, sound excitation by single high-energy particles, and the efficiency and optimal conditions of thermoradiation sound generation. Experimental results follow the theoretical discussions, and these clearly demonstrate the validity of the thermoradiation theory. The book concludes with discussions on applications, including the large-scale DUMAND and GENIUS projects now on the horizon. Radiation acoustics holds enormous potential for applications in areas such as microelectronics, geophysics, and astrophysics. This book offers a unique opportunity to benefit from the approach and extensive experience of author Leonid N. Lyamshev, who in this, his last book, shows how he left an indelible mark on the world of acoustics.


Introduction to Radiation Acoustics

Introduction to Radiation Acoustics

Author: Alexander Kalinichenko

Publisher: CRC Press

Published: 2002-04-25

Total Pages: 268

ISBN-13: 9789057026157

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In this volume, the author explains a generalized theory of radiation acoustic phenomena. This concise and comprehensive introduction to the field of radiation acoustics considers the nonlinear and non-thermal mechanisms of sound generation as well as the fundamental equations of radiation acoustics. The author also explores topics beyond theory and postulates some applications of radiation acoustic effects. Introduction to Radiation Acoustics is ideal for graduate students and specialists in the fields of accelerator techniques, acoustics, radiotherapeutics, and elementary particle physics.


Structure-Borne Sound

Structure-Borne Sound

Author: L. Cremer

Publisher: Springer Science & Business Media

Published: 2013-03-09

Total Pages: 591

ISBN-13: 3662101211

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Since structure-borne sound plays an important role in noise control, material testing and machine diagnosis, the relevant properties of the most important elements of a construction (plates, beams and shells) are investigated. Measurement techniques, equations of motion, formulas for wave speeds, resonance frequencies, impedances, transmission coefficients etc. are given. The different damping mechanisms and the radiation properties are treated. The statistical energy analysis (SEA) is also presented. This new edition has been enlarged to include also waves on orthotropic plates, and the vibration and radiation of cylindrical shells.


Formulas of Acoustics

Formulas of Acoustics

Author: F.P. Mechel

Publisher: Springer Science & Business Media

Published: 2013-06-29

Total Pages: 1197

ISBN-13: 3662072963

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This application-orientated collection of formulas has been written by applied scientists and industrial engineers for design professionals and students who work in engineering acoustics. It is subdivided into the most important fields of applied acoustics, each dealing with a well-defined type of problem. It provides easy and rapid access to profound and comprehensive information. In order to keep the text as concise as possible, the derivation of a formula is described as briefly as possible and the reader is referred to the original source. Besides the formulas, useful principles and computational procedures are given.


Sound and Structural Vibration

Sound and Structural Vibration

Author: Frank J. Fahy

Publisher: Elsevier

Published: 2007-01-12

Total Pages: 666

ISBN-13: 0080471102

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The first edition of Sound and Structural Vibration was written in the early 1980s. Since then, two major developments have taken place in the field of vibroacoustics. Powerful computational methods and procedures for the numerical analysis of structural vibration, acoustical fields and acoustical interactions between fluids and structures have been developed and these are now universally employed by researchers, consultants and industrial organisations. Advances in signal processing systems and algorithms, in transducers, and in structural materials and forms of construction, have facilitated the development of practical means of applying active and adaptive control systems to structures for the purposes of reducing or modifying structural vibration and the associated sound radiation and transmission. In this greatly expanded and extensively revised edition, the authors have retained most of the analytically based material that forms the pedagogical content of the first edition, and have expanded it to present the theoretical foundations of modern numerical analysis. Application of the latter is illustrated by examples that have been chosen to complement the analytical approaches to solving fairly simple problems of sound radiation, transmission and fluid-structural coupling that are presented in the first edition. The number of examples of experimental data that relate to the theoretical content, and illustrate important features of vibroacoustic interaction, has been augmented by the inclusion of a selection from the vast amount of material published during the past twenty five years. The final chapter on the active control of sound and vibration has no precursor in the first edition.* Covers theoretical approaches to modeling and analysis* Highly applicable to challenges in industry and academia* For engineering students to use throughout their career


Microscale Acoustofluidics

Microscale Acoustofluidics

Author: Thomas Laurell

Publisher: Royal Society of Chemistry

Published: 2014-12-08

Total Pages: 593

ISBN-13: 1849737061

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The manipulation of cells and microparticles within microfluidic systems using external forces is valuable for many microscale analytical and bioanalytical applications. Acoustofluidics is the ultrasound-based external forcing of microparticles with microfluidic systems. It has gained much interest because it allows for the simple label-free separation of microparticles based on their mechanical properties without affecting the microparticles themselves. Microscale Acoustofluidics provides an introduction to the field providing the background to the fundamental physics including chapters on governing equations in microfluidics and perturbation theory and ultrasound resonances, acoustic radiation force on small particles, continuum mechanics for ultrasonic particle manipulation, and piezoelectricity and application to the excitation of acoustic fields for ultrasonic particle manipulation. The book also provides information on the design and characterization of ultrasonic particle manipulation devices as well as applications in acoustic trapping and immunoassays. Written by leading experts in the field, the book will appeal to postgraduate students and researchers interested in microfluidics and lab-on-a-chip applications.


Acoustics: Sound Fields and Transducers

Acoustics: Sound Fields and Transducers

Author: Leo Leroy Beranek

Publisher: Academic Press

Published: 2012-09-20

Total Pages: 728

ISBN-13: 0123914213

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Long-awaited update and expansion of a widely recognised classic in the field by pioneering acoustics expert, Leo L. Beranek Builds upon Beranek's 1954 Acoustics classic by incorporating recent developments, practical formulas and methods for effective simulation Uniquely, provides the detailed acoustic fundamentals which enable better understanding of complex design parameters, measurement methods and data Brings together topics currently scattered across a variety of books and sources into one valuable reference Includes relevant case studies, real-world examples and solutions to bring the theory to life Acoustics: Sound Fields and Transducers is a modern expansion and re-working of Acoustics, the 1954 classic reference written by Leo L. Beranek. Updated throughout and focused on electroacoustics with the needs of a broad range of acoustics engineers and scientists in mind, this new book retains and expands on the detailed acoustical fundamentals included in the original whilst adding practical formulas and simulation methods for practising professionals. Benefitting from Beranek's lifetime experience as a leader in the field and co-author Tim Mellow's cutting-edge industry experience, Acoustics: Sound Fields and Transducers is a modern classic to keep close to hand in the lab, office and design studio. Builds on Beranek's 1954 Acoustics classic by incorporating recent developments, practical formulas and methods for effective simulationUniquely provides the detailed acoustic fundamentals, enabling better understanding of complex design parameters, measurement methods and dataBrings together topics currently scattered across a variety of books and sources into one valuable referenceIncludes relevant case studies, real-world examples and solutions to bring the theory to life.


Radiation Sounds

Radiation Sounds

Author: Jessica A. Schwartz

Publisher: Duke University Press

Published: 2021-09-10

Total Pages: 176

ISBN-13: 1478021918

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On March 1, 1954, the US military detonated “Castle Bravo,” its most powerful nuclear bomb, at Bikini Atoll in the Marshall Islands. Two days later, the US military evacuated the Marshallese to a nearby atoll where they became part of a classified study, without their consent, on the effects of radiation on humans. In Radiation Sounds Jessica A. Schwartz examines the seventy-five years of Marshallese music developed in response to US nuclear militarism on their homeland. Schwartz shows how Marshallese singing draws on religious, cultural, and political practices to make heard the deleterious effects of US nuclear violence. Schwartz also points to the literal silencing of Marshallese voices and throats compromised by radiation as well as the United States’ silencing of information about the human radiation study. By foregrounding the centrality of the aural and sensorial in understanding nuclear testing’s long-term effects, Schwartz offers new modes of understanding the relationships between the voice, sound, militarism, indigeneity, and geopolitics.


Theory and Application of Acoustic Sources Using Complex Analysis

Theory and Application of Acoustic Sources Using Complex Analysis

Author: Martin Ochmann

Publisher: Springer Nature

Published: 2021-02-01

Total Pages: 247

ISBN-13: 9813360402

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This book highlights the mathematical and physical properties of acoustical sources with singularities located in the complex plane and presents the application of such special elements to solve acoustical radiation and scattering problems. Sources whose origin lies in the complex plane are also solutions of the wave equation but possess different radiating properties as their counterparts with real positions. Such mathematical constructions are known in the fields of optics and electrodynamics, but they are not common in acoustical research. The objective of the book is to introduce this concept to acousticians and motivate them to engage themselves in further research and application of complex sources. Such sources are particularly useful to formulate Green’s functions and related equivalent source and boundary element methods in half-spaces.