Sound and Structural Vibration

Sound and Structural Vibration
Author: Frank J. Fahy
Publsiher: Academic Press
Total Pages: 338
Release: 1987
ISBN: 9780122476716
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Sound and Structural Vibration Book Excerpt:

This textbook looks at the analysis of audio-frequency vibration in coupled solid-fluid systems in which the role of waves in both media is emphasised.

Sound and Structural Vibration

Sound and Structural Vibration
Author: Frank J. Fahy,Paolo Gardonio
Publsiher: Elsevier
Total Pages: 656
Release: 2007-01-12
ISBN: 0080471102
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Sound and Structural Vibration Book Excerpt:

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

Sound and Structural Vibration

Sound and Structural Vibration
Author: Frank J. Fahy,P. Gardonio
Publsiher: Academic Press
Total Pages: 633
Release: 2006-04-01
ISBN: 9780080442648
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Sound and Structural Vibration Book Excerpt:

Structure borne Sound

Structure borne Sound
Author: Lothar Cremer,Manfred Heckl
Publsiher: Springer Verlag
Total Pages: 604
Release: 1988
ISBN: 1928374650XXX
Category: Acoustical engineering
Language: EN, FR, DE, ES & NL

Structure borne Sound Book Excerpt:

Deutscher Titel: Körperschall Physikalische Grundlagen und technische Anwendungen Mit 210 Abbildungen

Structure Borne Sound

Structure Borne Sound
Author: L. Cremer,M. Heckl,Björn A.T. Petersson
Publsiher: Springer
Total Pages: 608
Release: 2005-01-17
ISBN: 9783540226963
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Structure Borne Sound Book Excerpt:

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.

Control of Noise and Structural Vibration

Control of Noise and Structural Vibration
Author: Qibo Mao,Stanislaw Pietrzko
Publsiher: Springer Science & Business Media
Total Pages: 369
Release: 2013-06-02
ISBN: 1447150910
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Control of Noise and Structural Vibration Book Excerpt:

Control of Noise and Structural Vibration presents a MATLAB®-based approach to solving the problems of undesirable noise generation and transmission by structures and of undesirable vibration within structures in response to environmental or operational forces. The fundamentals of acoustics, vibration and coupling between vibrating structures and the sound fields they generate are introduced including a discussion of the finite element method for vibration analysis. Following this, the treatment of sound and vibration control begins, illustrated by example systems such as beams, plates and double walls. Sensor and actuator placement is explained as is the idea of modal sensor–actuators. The design of appropriate feedback systems includes consideration of basic stability criteria and robust active structural acoustic control. Positive position feedback (PPF) and multimode control are also described in the context of loudspeaker–duct and loudspeaker–microphone models. The design of various components is detailed including the analog circuit for PPF, adaptive (semi-active) Helmholtz resonators and shunt piezoelectric circuits for noise and vibration suppression. The text makes extensive use of MATLAB® examples and these can be simulated using files available for download from the book’s webpage at springer.com. End-of-chapter exercises will help readers to assimilate the material as they progress through the book. Control of Noise and Structural Vibration will be of considerable interest to the student of vibration and noise control and also to academic researchers working in the field. It’s tutorial features will help practitioners who wish to update their knowledge with self-study.

Wave Propagation Approach for Structural Vibration

Wave Propagation Approach for Structural Vibration
Author: Chongjian Wu
Publsiher: Springer Nature
Total Pages: 267
Release: 2020-10-28
ISBN: 9811572372
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Wave Propagation Approach for Structural Vibration Book Excerpt:

This book is intended for researchers, graduate students and engineers in the fields of structure-borne sound, structural dynamics, and noise and vibration control. Based on vibration differential equations, it presents equations derived from the exponential function in the time domain, providing a unified framework for structural vibration analysis, which makes it more regular and normalized. This wave propagation approach (WPA) divides structures at “discontinuity points,” and the waves show characteristics of propagation, reflection, attenuation, and waveform conversion. In each segment of the system between two “discontinuity points,” the governing equation and constraint are expressed accurately, allowing the dynamic properties of complex systems to be precisely obtained. Starting with basic structures such as beams and plates, the book then discusses theoretical research on complicated and hybrid dynamical systems, and demonstrates that structural vibration can be analyzed from the perspective of elastic waves by applying WPA.

Structural Vibration

Structural Vibration
Author: C. Beards
Publsiher: Elsevier
Total Pages: 276
Release: 1996-05-31
ISBN: 9780080518053
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Structural Vibration Book Excerpt:

Many structures suffer from unwanted vibrations and, although careful analysis at the design stage can minimise these, the vibration levels of many structures are excessive. In this book the entire range of methods of control, both by damping and by excitation, is described in a single volume. Clear and concise descriptions are given of the techniques for mathematically modelling real structures so that the equations which describe the motion of such structures can be derived. This approach leads to a comprehensive discussion of the analysis of typical models of vibrating structures excited by a range of periodic and random inputs. Careful consideration is also given to the sources of excitation, both internal and external, and the effects of isolation and transmissability. A major part of the book is devoted to damping of structures and many sources of damping are considered, as are the ways of changing damping using both active and passive methods. The numerous worked examples liberally distributed throughout the text, amplify and clarify the theoretical analysis presented. Particular attention is paid to the meaning and interpretation of results, further enhancing the scope and applications of analysis. Over 80 problems are included with answers and worked solutions to most. This book provides engineering students, designers and professional engineers with a detailed insight into the principles involved in the analysis and damping of structural vibration while presenting a sound theoretical basis for further study. Suitable for students of engineering to first degree level and for designers and practising engineers Numerous worked examples Clear and easy to follow

Engineering Noise Control

Engineering Noise Control
Author: David A. Bies,Colin H. Hansen
Publsiher: CRC Press
Total Pages: 768
Release: 2009-06-26
ISBN: 0203872401
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Engineering Noise Control Book Excerpt:

The practice of engineering noise control demands a solid understanding of the fundamentals of acoustics, the practical application of current noise control technology and the underlying theoretical concepts. This fully revised and updated fourth edition provides a comprehensive explanation of these key areas clearly, yet without oversimplification. Written by experts in their field, the practical focus echoes advances in the discipline, reflected in the fourth edition’s new material, including: completely updated coverage of sound transmission loss, mufflers and exhaust stack directivity a new chapter on practical numerical acoustics thorough explanation of the latest instruments for measurements and analysis. Essential reading for advanced students or those already well versed in the art and science of noise control, this distinctive text can be used to solve real world problems encountered by noise and vibration consultants as well as engineers and occupational hygienists.

Sound Structures and Their Interaction

Sound  Structures  and Their Interaction
Author: Miguel C. Junger,David Feit
Publsiher: MIT Press (MA)
Total Pages: 448
Release: 1986
ISBN: 9780262100342
Category: Music
Language: EN, FR, DE, ES & NL

Sound Structures and Their Interaction Book Excerpt:

Sound, Structures, and Their Interaction covers theoretical acoustics, structural vibrations, and the interaction of elastic structures with an ambient acoustic medium. It is intended both as a text for graduate-level courses and as a reference book for researchers in various areas of underwater acoustics. It is self-contained and presents the theoretical foundations in sound radiation and scattering and in plate and shell vibrations required for the solution of coupled acoustics-structural vibrations problems.First published in 1972, Sound, Structures, and Their Interaction has been extensively revised to incorporate new results, with a particular emphasis on novel asymptotic solutions that provide physical insight as well as a check on numerical solutions. The book differs from other texts not only in its thorough treatment of the interaction of elastic structures with the ambient medium but also in its derivation of short-wavelength asymptotic solutions of sound diffraction (creeping waves) and of high-frequency vibrations of shells.This new edition also covers specialized problems, such as sound propagation in bubble swarms and in liquid-filled elastic waveguides and the effect of stiffeners on the response of submerged plates. The chapters dealing with acoustics proper provide powerful analytical techniques that the reader can apply to specific radiation and scattering situations.Miguel C. Junger is President and Principal Scientist, Cambridge Acoustical Associates, Inc. David Feit is a Research Scientist in the Ship Acoustics Department of the David W. Taylor Naval Ship Research and Development Center, Bethesda, Maryland.

Special Topics in Structural Dynamics Volume 6

Special Topics in Structural Dynamics  Volume 6
Author: Gary Foss,Christopher Niezrecki
Publsiher: Springer Science & Business
Total Pages: 427
Release: 2014-04-22
ISBN: 3319047299
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Special Topics in Structural Dynamics Volume 6 Book Excerpt:

This sixth volume of eight from the IMAC - XXXII Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on: Linear Systems Substructure Modelling Adaptive Structures Experimental Techniques Analytical Methods Damage Detection Damping of Materials & Members Modal Parameter Identification Modal Testing Methods System Identification Active Control Modal Parameter Estimation Processing Modal Data

Automotive Engineering e Mega Reference

Automotive Engineering e Mega Reference
Author: David Crolla
Publsiher: Butterworth-Heinemann
Total Pages: 850
Release: 2009-06-16
ISBN: 1856175782
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Automotive Engineering e Mega Reference Book Excerpt:

This one-stop Mega Reference eBook brings together the essential professional reference content from leading international contributors in the automotive field. An expansion the Automotive Engineering print edition, this fully searchable electronic reference book of 2500 pages delivers content to meet all the main information needs of engineers working in vehicle design and development. Material ranges from basic to advanced topics from engines and transmissions to vehicle dynamics and modelling. * A fully searchable Mega Reference Ebook, providing all the essential material needed by Automotive Engineers on a day-to-day basis. * Fundamentals, key techniques, engineering best practice and rules-of-thumb together in one quick-reference. * Over 2,500 pages of reference material, including over 1,500 pages not included in the print edition

The Shock and Vibration Bulletin

The Shock and Vibration Bulletin
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 1967
ISBN: 1928374650XXX
Category: Shock (Mechanics)
Language: EN, FR, DE, ES & NL

The Shock and Vibration Bulletin Book Excerpt:

Foundation of Statistical Energy Analysis in Vibroacoustics

Foundation of Statistical Energy Analysis in Vibroacoustics
Author: A. Le Bot
Publsiher: OUP Oxford
Total Pages: 352
Release: 2015-05-28
ISBN: 0191045462
Category: Science
Language: EN, FR, DE, ES & NL

Foundation of Statistical Energy Analysis in Vibroacoustics Book Excerpt:

This book provides an in-depth study of the foundations of statistical energy analysis, with a focus on examining the statistical theory of sound and vibration. In the modal approach, an introduction to random vibration with application to complex systems having a large number of modes is provided. For the wave approach, the phenomena of propagation, group speed, and energy transport are extensively discussed. Particular emphasis is given to the emergence of the diffuse field, the central concept of the theory. All important notions are gradually introduced—-making the text self-contained—-to lead the reader to the ultimate result of `coupling power proportionality' and the concept of `vibrational temperature'. Further key topics include the analogy between thermodynamics and sound vibration. Applications are concerned with random vibration in mass—spring resonators, strings, beams, rods, and plates but also reverberation in room acoustics, radiation of sound, and sound response.

Advanced Dynamics and Control of Structures and Machines

Advanced Dynamics and Control of Structures and Machines
Author: Hans Irschik,Kurt Schlacher
Publsiher: Springer
Total Pages: 281
Release: 2014-05-04
ISBN: 3709127742
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Advanced Dynamics and Control of Structures and Machines Book Excerpt:

This book, intended for people in engineering and fundamental sciences, presents an integrated mathematical methodology for advanced dynamics and control of structures and machines, ranging from the derivation of models up to the control synthesis problem. This point of view is particularly useful as the physical insight and the associated structural properties, related e.g. to the Lagrangian or Hamiltonian framework, can be advantageously utilized. To this end, up to date results in disciplines like continuum mechanics, analytical mechanics, thermodynamics and electrodynamics are presented exploiting the differential geometric properties, with the basic notions of this coordinate-free approach revisited in an own chapter. In order to illustrate the proposed methodologies, several industrial applications, e.g., the derivation of exact solutions for the deformation compensation by shaped actuation in elastic bodies, or the coordination of rigid and flexible joint robots, are discussed.

The Shock and Vibration Digest

The Shock and Vibration Digest
Author: Anonim
Publsiher: Unknown
Total Pages: 135
Release: 1985
ISBN: 1928374650XXX
Category: Shock (Mechanics)
Language: EN, FR, DE, ES & NL

The Shock and Vibration Digest Book Excerpt:

Structural Vibration

Structural Vibration
Author: C.Y. Wang,C.M. Wang
Publsiher: CRC Press
Total Pages: 307
Release: 2016-04-19
ISBN: 1466576855
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Structural Vibration Book Excerpt:

Structural Vibration: Exact Solutions for Strings, Membranes, Beams, and Plates offers an introduction to structural vibration and highlights the importance of the natural frequencies in design. It focuses on free vibrations for analysis and design of structures and machine and presents the exact vibration solutions for strings, membranes, beams, a

Noise Programs of Professional industrial Organizations Universities and Colleges

Noise Programs of Professional industrial Organizations  Universities  and Colleges
Author: United States. Office of Noise Abatement and Control,United States. Environmental Protection Agency
Publsiher: Unknown
Total Pages: 14
Release: 1971
ISBN: 1928374650XXX
Category: Noise control
Language: EN, FR, DE, ES & NL

Noise Programs of Professional industrial Organizations Universities and Colleges Book Excerpt:

Acoustic Breakout Noise From Non Circular Muffler Shells

Acoustic Breakout Noise From Non Circular Muffler Shells
Author: SH Gowtham Gudimella
Publsiher: CSMFL Publications
Total Pages: 111
Release: 2018-04-02
ISBN: 8193278461
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Acoustic Breakout Noise From Non Circular Muffler Shells Book Excerpt:

A theoretical treatment of sound transmission through the walls of non-circular muffler shell is done for plane mode transmission within the muffler shell. Non-circular muffler shells include distorted circular (due to the welding seam), elliptical (oval) and flat-oval shells. An analytical formulation has been developed in this thesis in order to predict the breakout noise with the acoustical and structural wave coupling phenomena. First, progressive wave model is chosen. Then, the Transverse Transmission Loss (TTL) is predicted at different frequencies of interest. This formulation is extended to the standing wave model by which results for anechoic, rigid end and open end boundary conditions are obtained. Transverse transmission loss (TTL) predicted, based on the analytical model, is compared and validated with computational results using a commercial 3-D numerical simulation (vibro-acoustic) software package like SYSNOISE. Same model is used for non-circular shell with flat-oval configuration. And also breakout noise obtained from different configurations like circular, elliptical, flat-oval, rectangular and square, all having the same equivalent radius, are compared. Finally, by incorporating effects of finite length of the muffler and end plates, analytical model has been developed for a circular shell. Parametric studies have been done wherever required to evolve the design guidelines which will be helpful for designers.

Active Control of Noise and Vibration

Active Control of Noise and Vibration
Author: Colin Hansen,Scott Snyder,Xiaojun Qiu,Laura Brooks,Danielle Moreau
Publsiher: CRC Press
Total Pages: 1544
Release: 2012-11-02
ISBN: 1482234009
Category: Technology & Engineering
Language: EN, FR, DE, ES & NL

Active Control of Noise and Vibration Book Excerpt:

Since the publication of the first edition, considerable progress has been made in the development and application of active noise control (ANC) systems, particularly in the propeller aircraft and automotive industries. Treating the active control of both sound and vibration in a unified way, this second edition of Active Control of Noise and Vibra