STRUCTURAL VIBRATION ANALYSIS AND DAMPING

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Structural Vibration

Author : C. Beards
ISBN : 0080518052
Genre : Technology & Engineering
File Size : 55.76 MB
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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
Category: Technology & Engineering

Experimental Vibration Analysis For Civil Structures

Author : Joel P. Conte
ISBN : 9783319674438
Genre : Technology & Engineering
File Size : 67.2 MB
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This edited volume presents selected contributions from the International Conference on Experimental Vibration Analysis of Civil Engineering Structures held in San Diego, California in 2017 (EVACES2017). The event brought together engineers, scientists, researchers, and practitioners, providing a forum for discussing and disseminating the latest developments and achievements in all major aspects of dynamic testing for civil engineering structures, including instrumentation, sources of excitation, data analysis, system identification, monitoring and condition assessment, in-situ and laboratory experiments, codes and standards, and vibration mitigation.
Category: Technology & Engineering

Vibration Damping Control And Design

Author : Clarence W. de Silva
ISBN : 1420053221
Genre : Technology & Engineering
File Size : 27.86 MB
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Reducing and controlling the level of vibration in a mechanical system leads to an improved work environment and product quality, reduced noise, more economical operation, and longer equipment life. Adequate design is essential for reducing vibrations, while damping and control methods help further reduce and manipulate vibrations when design strategies reach their limits. There are also useful types of vibration, which may require enhancement or control. Vibration Damping, Control, and Design balances theoretical and application-oriented coverage to enable optimal vibration and noise suppression and control in nearly any system. Drawn from the immensely popular Vibration and Shock Handbook, each expertly crafted chapter of this book includes convenient summary windows, tables, graphs, and lists to provide ready access to the important concepts and results. Working systematically from general principles to specific applications, coverage spans from theory and experimental techniques in vibration damping to isolation, passive control, active control, and structural dynamic modification. The book also discusses specific issues in designing for and controlling vibrations and noise such as regenerative chatter in machine tools, fluid-induced vibration, hearing and psychological effects, instrumentation for monitoring, and statistical energy analysis. This carefully edited work strikes a balance between practical considerations, design issues, and experimental techniques. Complemented by design examples and case studies, Vibration Damping, Control, and Design builds a deep understanding of the concepts and demonstrates how to apply these principles to real systems.
Category: Technology & Engineering

Structural Dynamic Analysis With Generalized Damping Models

Author : Sondipon Adhikari
ISBN : 9781118863022
Genre : Technology & Engineering
File Size : 89.95 MB
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Since Lord Rayleigh introduced the idea of viscous damping in hisclassic work "The Theory of Sound" in 1877, it has become standardpractice to use this approach in dynamics, covering a wide range ofapplications from aerospace to civil engineering. However, in themajority of practical cases this approach is adopted more formathematical convenience than for modeling the physics of vibrationdamping. Over the past decade, extensive research has been undertaken onmore general “non-viscous” damping models and vibrationof non-viscously damped systems. This book, along with a relatedbook Structural Dynamic Analysis with Generalized Damping Models:Analysis, is the first comprehensive study to cover vibrationproblems with general non-viscous damping. The author draws on hisconsiderable research experience to produce a text covering:parametric senistivity of damped systems; identification of viscousdamping; identification of non-viscous damping; and some tools forthe quanitification of damping. The book is written from avibration theory standpoint, with numerous worked examples whichare relevant across a wide range of mechanical, aerospace andstructural engineering applications. Contents 1. Parametric Sensitivity of Damped Systems. 2. Identification of Viscous Damping. 3. Identification of Non-viscous Damping. 4. Quantification of Damping. About the Authors Sondipon Adhikari is Chair Professor of Aerospace Engineering atSwansea University, Wales. His wide-ranging and multi-disciplinaryresearch interests include uncertainty quantification incomputational mechanics, bio- and nanomechanics, dynamics ofcomplex systems, inverse problems for linear and nonlineardynamics, and renewable energy. He is a technical reviewer of 97international journals, 18 conferences and 13 funding bodies.He haswritten over 180 refereed journal papers, 120 refereed conferencepapers and has authored or co-authored 15 book chapters.
Category: Technology & Engineering

Damping Of Vibrations

Author : Z. Osinski
ISBN : 9054106778
Genre : Technology & Engineering
File Size : 82.72 MB
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This monograph seeks to strengthen the contributions of Polish scientists and engineers to the study of problems of mechanical vibrations and noise. It presents research covering such topics as: structural damping; internal damping in composite materials; and noise attenuation in working machines.
Category: Technology & Engineering

Vibration Damping Of Structural Elements

Author : Chin-Teh Sun
ISBN : 0130792292
Genre : Technology & Engineering
File Size : 45.92 MB
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This text concentrates on the damping improvement of many structural elements - including beams plates, rods, rings, shells and curved elements - by using constrained viscoelastic damping materials. The development of analytical models for damping in structural elements is emphasized, alongside the progression from simple single degree of freedome models to more complex multidegree of freedome models, continuous structural elements, and finite element techniques.
Category: Technology & Engineering

Vibration Damping

Author : Ahid D. Nashif
ISBN : 0471867721
Genre : Technology & Engineering
File Size : 89.32 MB
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A practical approach to the application of viscoelastic damping materials to control vibration and noise problems in industrial structures, machinery, computer machinery, and vehicles. Assuming a basic understanding of mechanical engineering, the text covers implementation of theory, including material properties, dynamic structural response, design procedures and practical applications. Based on an understanding of both the properties of materials and the vibrational response of structures. Considers individual structures and the damping materials properties simultaneously. Includes extensive collection of data sheets for a large number of useful damping materials.
Category: Technology & Engineering

Mechanical And Structural Vibrations

Author : Demeter G. Fertis
ISBN : 0471106003
Genre : Technology & Engineering
File Size : 89.40 MB
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Covering the whole spectrum of vibration theory and its applications in both civil and mechanical engineering, Mechanical and Structural Vibrations provides the most comprehensive treatment of the subject currently available. Based on the author s many years of experience in both academe and industry, it is designed to function equally well as both a day–to–day working resource for practicing engineers and a superior upper–level undergraduate or graduate–level text. Features a quick–reference format that, Mechanical and Structural Vibrations gives engineers instant access to the specific theory or application they need. Saves valuable time ordinarily spent wading through unrelated or extraneous material. And, while they are thoroughly integrated throughout the text, applications to both civil and mechanical engineering are organized into sections that permit the reader to reference only the material germane to his or her field. Students and teachers will appreciate the book′s practical, real–world approach to the subject, its emphasis on simplicity and accuracy of analytical techniques, and its straightforward, step–by–step delineation of all numerical methods used in calculating the dynamics and vibrations problems, as well as the numerous examples with which the author illustrates those methods. They will also appreciate the many chapter–end practice problems (solutions appear in appendices) designed to help them rapidly develop mastery of all concepts and methods covered. Readers will find many versatile new concepts and analytical techniques not covered in other texts, including nonlinear analysis, inelastic response of structural and mechanical components of uniform and variable stiffness, the "dynamic hinge," "dynamically equivalent systems," and other breakthrough tools and techniques developed by the author and his collaborators. Mechanical and Structural Vibrations is both an excellent text for courses in structural dynamics, dynamic systems, and engineering vibration and a valuable tool of the trade for practicing engineers working in a broad range of industries, from electronic packaging to aerospace. Timely, comprehensive, practical––a superior student text and an indispensable working resource for busy engineers Mechanical and Structural Vibrations is the first text to cover the entire spectrum of vibration theory and its applications in both civil and mechanical engineering. Written by an author with over a quarter century of experience as a teacher and practicing engineer, it is designed to function equally well as a working professional resource and an upper–level undergraduate or graduate–level text for courses in structural dynamics, dynamic systems, and engineering vibrations. Mechanical and Structural Vibrations: ∗ Takes a practical, application–oriented approach to the subject ∗ Features a quick–reference format that gives busy professionals instant access to the information needed for the task at hand ∗ Walks readers, step–by–step, through the numerical methods used in calculating the dynamics and vibration problems ∗ Introduces many cutting–edge concepts and analytical tools not covered in other texts ∗ Is packed with real–world examples covering everything from the stresses and strains on buildings during an earthquake to those affecting a space craft during lift–off ∗ Contains chapter–end problems––and solutions––that help students rapidly develop mastery of all important concepts and methods covered ∗ Is extremely well–illustrated and includes more than 300 diagrams, tables, charts, illustrations, and more
Category: Technology & Engineering

Ships And Offshore Structures Xix

Author : Carlos Guedes Soares
ISBN : 9781315647197
Genre : Technology & Engineering
File Size : 51.15 MB
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This three-volume work presents the proceedings from the 19th International Ship and Offshore Structures Congress held in Cascais, Portugal on 7th to 10th September 2015. The International Ship and Offshore Structures Congress (ISSC) is a forum for the exchange of information by experts undertaking and applying marine structural research.The aim of
Category: Technology & Engineering