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Structural Vibration

Author: C. Beards
Publisher: Elsevier
ISBN: 9780080518053
Size: 13.41 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

Sound And Structural Vibration

Author: Frank J. Fahy
Publisher: Elsevier
ISBN: 0080517374
Size: 52.61 MB
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This book presents a unified qualitative and quantitative account of the physical mechanisms and characteristics of linear interaction between audio-frequency vibrational motion in compressible fluids and structures with which they are in contact. The primary purpose is to instruct the reader in theoretical approaches to the modelling and analysis of interactions, whilst simultaneously providing physical explanations of their dependence upon the parameters of the coupled systems. It is primarily to the engineering student that the book is addressed, in the firm belief that a good engineer remains a student throughout his professional life. A preoccupation with the relevance and validity of theoretical analyses in relation to practical problems is a hallmark of results obtained from theoretical analysis of idealized models and the behaviour of the less than ideal realities from which they are abstracted.

Structural Vibration

Author: C.Y. Wang
Publisher: CRC Press
ISBN: 1466576855
Size: 40.98 MB
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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, and plates. This book emphasizes the exact solutions for free transverse vibration of strings, membranes, beams, and plates. It explains the intrinsic, fundamental, and unexpected features of the solutions in terms of known functions as well as solutions determined from exact characteristic equations. The book provides: A single-volume resource for exact solutions of vibration problems in strings, membranes, beams, and plates A reference for checking vibration frequency values and mode shapes of structural problems Governing equations and boundary conditions for vibration of structural elements Analogies of vibration problems Structural Vibration: Exact Solutions for Strings, Membranes, Beams, and Plates provides practicing engineers, academics, and researchers with a reference for data on a specific structural member as well as a benchmark standard for numerical or approximate analytical methods.

Structural Acoustics And Vibration

Author: Roger Ohayon
Publisher: Elsevier
ISBN: 9780080541945
Size: 54.73 MB
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Structural Acoustics and Vibration presents the modeling of vibrations of complex structures coupled with acoustic fluids in the low and medium frequency ranges. It is devoted to mechanical models, variationalformulations and discretization for calculating linear vibrations in the frequency domain of complex structures. The book includes theoretical formulations which are directly applicable to develop computer codes for the numerical simulation of complex systems, and gives a general scientific strategy to solve various complex structural acoustics problems in different areas such as spacecraft, aircraft, automobiles, and naval structures. The researcher may directly apply the material of the book to practical problems such as acoustic pollution, the comfort of passengers, and acoustic loads induced by propellers. Structural Acoustics and Vibration considers the mechanical and numerical aspects of the problem, and gives original solutions to the predictability of vibrations of complex structures interacting with internal and external, liquid and gaseous fluids. It is a self-contained general synthesis with a didactic presentation and fills the gap between analytical methods applied to simple geometries and statistical methods, which are useful in high frequency structural acoustic problems. Provides for the first time complex structures in scientific literature Presents a self-contained general synthesis with a didactic presentation Integrates the most advanced research topics on the subject Enables the researcher to solve complex structural acoustics problems in areas such as spacecraft, aircraft, automobiles, and naval structures Fills the gap between analytical methods applied to simple geometries and statistical methods Contains advanced mechanical and numerical modeling Provides appropriate formulations directly applicable for developing computer codes for the numerical simulation of complex systemssystems

Structural Vibration

Author: Guoyong Jin
Publisher: Springer
ISBN: 3662463644
Size: 22.95 MB
Format: PDF, ePub, Mobi
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This book develops a uniform accurate method which is capable of dealing with vibrations of laminated beams, plates and shells with arbitrary boundary conditions including classical boundaries, elastic supports and their combinations. It also provides numerous solutions for various configurations including various boundary conditions, laminated schemes, geometry and material parameters, which fill certain gaps in this area of reach and may serve as benchmark solutions for the readers. For each case, corresponding fundamental equations in the framework of classical and shear deformation theory are developed. Following the fundamental equations, numerous free vibration results are presented for various configurations including different boundary conditions, laminated sequences and geometry and material properties. The proposed method and corresponding formulations can be readily extended to static analysis.

Structure Borne Sound

Author: L. Cremer
Publisher: Springer Science & Business Media
ISBN: 3662101211
Size: 73.67 MB
Format: PDF, Kindle
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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.

Structural Dynamics And Vibration In Practice

Author: Douglas Thorby
Publisher: Butterworth-Heinemann
ISBN: 9780080557151
Size: 53.71 MB
Format: PDF
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This straightforward text, primer and reference introduces the theoretical, testing and control aspects of structural dynamics and vibration, as practised in industry today. Written by an expert engineer of over 40 years experience, the book comprehensively opens up the dynamic behavior of structures and provides engineers and students with a comprehensive practice based understanding of the key aspects of this key engineering topic. Written with the needs of engineers of a wide range of backgrounds in mind, this book will be a key resource for those studying structural dynamics and vibration at undergraduate level for the first time in aeronautical, mechanical, civil and automotive engineering. It will be ideal for laboratory classes and as a primer for readers returning to the subject, or coming to it fresh at graduate level. It is a guide for students to keep and for practicing engineers to refer to: its worked example approach ensures that engineers will turn to Thorby for advice in many engineering situations. Presents students and practitioners in all branches of engineering with a unique structural dynamics resource and primer, covering practical approaches to vibration engineering while remaining grounded in the theory of the topic Written by a leading industry expert, with a worked example lead approach for clarity and ease of understanding Makes the topic as easy to read as possible, omitting no steps in the development of the subject; covers computer based techniques and finite elements

Structural Vibration And Damage

Author: Raymond John Steffens
Publisher:
ISBN: 9780116705280
Size: 19.27 MB
Format: PDF, ePub
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Reviews information on the vibration of structures due to transport services and industrial processes and its effect on the occupants.

Mechanical And Structural Vibrations

Author: Demeter G. Fertis
Publisher: John Wiley & Sons
ISBN: 9780471106005
Size: 72.59 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