Описание: This multi-contributed volume provides a practical, applications-focused introduction to nonlinear acoustical techniques for nondestructive evaluation. Compared to linear techniques, nonlinear acoustical/ultrasonic techniques are much more sensitive to micro-cracks and other types of small distributed damages. Most materials and structures exhibit nonlinear behavior due to the formation of dislocation and micro-cracks from fatigue or other types of repetitive loadings well before detectable macro-cracks are formed. Nondestructive evaluation (NDE) tools that have been developed based on nonlinear acoustical techniques are capable of providing early warnings about the possibility of structural failure before detectable macro-cracks are formed. This book presents the full range of nonlinear acoustical techniques used today for NDE. The expert chapters cover both theoretical and experimental aspects, but always with an eye towards applications. Unlike other titles currently available, which treat nonlinearity as a physics problem and focus on different analytical derivations, the present volume emphasizes NDE applications over detailed analytical derivations. The introductory chapter presents the fundamentals in a manner accessible to anyone with an undergraduate degree in Engineering or Physics and equips the reader with all of the necessary background to understand the remaining chapters. This self-contained volume will be a valuable reference to graduate students through practising researchers in Engineering, Materials Science, and Physics.Represents the first book on nonlinear acoustical techniques for NDE applicationsEmphasizes applications of nonlinear acoustical techniquesPresents the fundamental physics and mathematics behind nonlinear acoustical phenomenon in a simple, easily understood mannerCovers a variety of popular NDE techniques based on nonlinear acoustics in a single volume
Автор: R.B. Bird; S.V. Bronnikov; C.F. Curtiss; S.Y. Fren Название: Statistical Mechanics Deformation Ultrasonic Spectroscopy ISBN: 3662147831 ISBN-13(EAN): 9783662147832 Издательство: Springer Рейтинг: Цена: 10421 р. Наличие на складе: Поставка под заказ.
Автор: Ashokkumar, Muthupandian Название: Ultrasonic Synthesis of Functional Materials ISBN: 3319289721 ISBN-13(EAN): 9783319289724 Издательство: Springer Рейтинг: Цена: 6156 р. Наличие на складе: Поставка под заказ.
Описание: Introduction.- Ultrasonic Synthesis of Functional Materials.- Advantages, Disadvantages and Challenges of Ultrasonic Technology.
Автор: Mylvaganam Название: Ultrasonic Gas Flowmeters ISBN: 3540637699 ISBN-13(EAN): 9783540637691 Издательство: Springer Цена: 7667 р. Наличие на складе: Поставка под заказ.
Описание: For many decades, ultrasonic flowmetering has been used for liquids. From the mid seventies, the principle of transit time has been more and more successfully
tested for various purposes in the metering of gas, e.g. flare gas metering, domestic gas flowmetering, and even fiscal and custody measurements of gas.
This book unifies the
basic principles, design, tests and installation effects in a self contained pedagogical unit with "hands-on" problems for the students as well as the professional. The book contains
solved problems and end-of-chapter problems. The enclosed diskette provides a number of MATLAB programs to work with along with the text.
Автор: Kenji Uchino Название: Piezoelectric Actuators and Ultrasonic Motors ISBN: 1461286387 ISBN-13(EAN): 9781461286387 Издательство: Springer Рейтинг: Цена: 29946 р. Наличие на складе: Поставка под заказ.
Описание: The problem solving edition "Piezoelectric Actuators -Problem Solving" was also published through Morikita, which was sold in conjunction with a 60 minute video tape to provide easy understanding.
Автор: Wolf Kleinert Название: Defect Sizing Using Non-destructive Ultrasonic Testing ISBN: 3319328344 ISBN-13(EAN): 9783319328348 Издательство: Springer Рейтинг: Цена: 12313 р. Наличие на складе: Поставка под заказ.
Описание: This book presents a precise approach for defect sizing using ultrasonics. The approach presented here is not only valid for conventional angle beam probes, but also for phased array angle beam probes. Its content is of interest to all those working with distance gain size (DGS) methods or are using distance amplitude correction (DAC) curves.
Автор: Lester W. Schmerr Jr. Название: Fundamentals of Ultrasonic Phased Arrays ISBN: 331934465X ISBN-13(EAN): 9783319344652 Издательство: Springer Рейтинг: Цена: 12313 р. Наличие на складе: Поставка под заказ.
Описание:
This book describes in detail the physical and mathematical foundations of ultrasonic phased array measurements. The book uses linear systems theory to develop a comprehensive model of the signals and images that can be formed with phased arrays. Engineers working in the field of ultrasonic nondestructive evaluation (NDE) will find in this approach a wealth of information on how to design, optimize and interpret ultrasonic inspections with phased arrays. The fundamentals and models described in the book will also be of significant interest to other fields, including the medical ultrasound and seismology communities. A unique feature of this book is that it presents a unified theory of imaging with phased arrays that shows how common imaging methods such as the synthetic aperture focusing technique (SAFT), the total focusing method (TFM), and the physical optics far field inverse scattering (POFFIS) imaging method are all simplified versions of more fundamental and quantitative imaging approaches, called imaging measurement models.
To enhance learning, this book first describes the fundamentals of phased array systems using 2-D models, so that the complex 3-D cases normally found in practice can be more easily understood. In addition to giving a detailed discussion of phased array systems, Fundamentals of Ultrasonic Phased Arrays also provides MATLAB(R) functions and scripts, allowing the reader to conduct simulations of ultrasonic phased array transducers and phased array systems with the latest modeling technology.
Описание: Recognized as an outstanding addition to the literature, this publication describes a novel technique that meets a core industrial inspection requirement in a high-value component in jet engines. The coverage includes production specifications and trial data.
Описание: EMATs for Science and Industry comprises the physical principles of electromagnetic acoustic transducers (EMATs) and the applications to scientific and industrial ultrasonic measurements on materials. The text is arranged in four parts: -PART I is intended to be a self-contained description of the basic elements of coupling mechanism along with practical designing of EMATs for various purposes. There are several implementations to compensate for the low transfer efficiency of the EMATs. Useful tips to make an EMAT are also presented. -PART II describes the principle of electromagnetic acoustic resonance (EMAR), which makes the most of contactless nature of EMATs and is the most successful amplification mechanism for precise velocity and attenuation measurements. -PART III applies EMAR to studying the physical acoustics. New measurements emerged on three major subjects; in situ monitoring of dislocation behavior, determination of anisotropic elastic constants, and acoustic nonlinearity evolution. -PART IV deals with a variety of individual topics encountered in industrial applications, for which the EMATs are believed to the best solutions.The authors' work in this area has shown Electromagnetic acoustic resonance (EMAR) to be applicable not only to the acoustoelastic stress measurements, but also to many other nondestructive evaluation issues, including the determination of attenuation in solids. Noncontact measurement with high enough signal intensity was striking. Basic preconditions of theoretical approaches were realized by eliminating artifacts caused by the contact transducers. EMAR thus illuminated antiquated theories, which were accepted to be of little use or limited to qualitative interpretation of observations. It also uncovered interesting phenomena. Continuous monitoring of attenuation and acoustic nonlinearity resulted in the detection of ongoing microstructure evolutions in deforming or fatiguing metals.The aim of this book is to provide practical answers to the needs of ultrasonic measurements as well as an understanding of a novel methodology.
Автор: V.K. Astashev; Karima Khusnutdinova; V. I. Babitsk Название: Ultrasonic Processes and Machines ISBN: 3642091245 ISBN-13(EAN): 9783642091247 Издательство: Springer Рейтинг: Цена: 22389 р. Наличие на складе: Поставка под заказ.
Описание: This work is the first and only book on the fundamentals of ultrasonic machining. It presents the foundations of dynamic and control for ultrasonic processing systems and considers ultrasonic systems as special vibratory machines that function by exploiting nonlinear dynamic processes.
Автор: Zhao Название: Ultrasonic Motors ISBN: 3642153046 ISBN-13(EAN): 9783642153044 Издательство: Springer Рейтинг: Цена: 27988 р. Наличие на складе: Поставка под заказ.
Описание: A comprehensive tutorial on ultrasonic motors for practicing engineers, researchers and graduate students. Ultrasonic Motors: Technologies and Applications describes the operating mechanism, electromechanical coupling models, optimization design of structural parameters, testing methods, and drive/control techniques of various ultrasonic motors and their applications.Dr. Chunsheng Zhao is a professor at Nanjing University of Aeronautics and Astronautics (NUAA) where he is Director of the Precision Driving Laboratory at NUAA. He is a member of the Chinese Academy of Science, and holds 54 patents in China and published more than 400 papers in the field of piezoelectric ultrasonic motors.
Автор: Gennaro Bozza Название: Optimization of an ultrasonic flow meter for binary mixtures ISBN: 3659591548 ISBN-13(EAN): 9783659591549 Издательство: LAP LAMBERT Academic Publishing Рейтинг: Цена: 11579 р. Наличие на складе: Невозможна поставка.
Описание: The fluid dynamic design of a new acoustic flow meter is shown in this work. The acoustic flow meter is a new addition to the ATLAS silicon tracker cooling system. ATLAS is one of the 7 experiments at the LHC particle collider at CERN. In this instrument, which can also operate with binary mixtures, ultrasonic sound waves are produced with special transducers, and sound transit times are continuously measured in opposite directions in flowing gas for continuous real-time measurement of both the gas binary mixture ratio and the flow rate. Three geometries of the flow meter were studied through CFD (Computational Fluid Dynamics) techniques: the pinched axial geometry, the open axial geometry and the angled geometry. The optimal configurations, in terms of both measurement reliability and pressure drop in the device were found, and the results are shown in this work. The angled geometry was chosen and, after a short prototyping phase, is now successfully operating.
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