December 5, 2020

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Applications of ATILA FEM Software to Smart Materials

Applications of ATILA FEM Software to Smart Materials
Author : Kenji Uchino,Jean-Claude Debus
Publisher : Elsevier
Release Date : 2012-11-27
Category : Computers
Total pages :400
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ATILA Finite Element Method (FEM) software facilitates the modelling and analysis of applications using piezoelectric, magnetostrictor and shape memory materials. It allows entire designs to be constructed, refined and optimized before production begins. Through a range of instructive case studies, Applications of ATILA FEM software to smart materials provides an indispensable guide to the use of this software in the design of effective products. Part one provides an introduction to ATILA FEM software, beginning with an overview of the software code. New capabilities and loss integration are discussed, before part two goes on to present case studies of finite element modelling using ATILA. The use of ATILA in finite element analysis, piezoelectric polarization, time domain analysis of piezoelectric devices and the design of ultrasonic motors is considered, before piezo-composite and photonic crystal applications are reviewed. The behaviour of piezoelectric single crystals for sonar and thermal analysis in piezoelectric and magnetostrictive materials is also discussed, before a final reflection on the use of ATILA in modelling the damping of piezoelectric structures and the behaviour of single crystal devices. With its distinguished editors and international team of expert contributors, Applications of ATILA FEM software to smart materials is a key reference work for all those involved in the research, design, development and application of smart materials, including electrical and mechanical engineers, academics and scientists working in piezoelectrics, magenetostrictors and shape memory materials. Provides an indispensable guide to the use of ATILA FEM software in the design of effective products Discusses new capabilities and loss integration of the software code, before presenting case studies of finite element modelling using ATILA Discusses the behaviour of piezoelectric single crystals for sonar and thermal analysis in piezoelectric and magnetostrictive materials, before a reflection on the use of ATILA in modelling the damping of piezoelectric structures

Applications of ATILA FEM software to smart materials

Applications of ATILA FEM software to smart materials
Author : K. Uchino
Publisher : Elsevier Inc. Chapters
Release Date : 2012-11-27
Category : Technology & Engineering
Total pages :400
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The finite element method and its application to smart transducer systems are introduced in this chapter. The fundamentals of finite element analysis are introduced first. Then, the section ‘Defining the equations for the problem’ treats how to integrate the piezoelectric constitutive equations, and ‘Application of the finite element method’ describes the meshing. The last section ‘FEM simulation examples’ introduces six cases; multilayer actuator, Π-type linear ultrasonic motor, windmill ultrasonic motor, metal tube ultrasonic motor, piezoelectric transformer, and ‘cymbal’ underwater transducer, which includes most of the basic capabilities of ATILA FEM code.

Applications of ATILA FEM software to smart materials

Applications of ATILA FEM software to smart materials
Author : S.-J. Yoon
Publisher : Elsevier Inc. Chapters
Release Date : 2012-11-27
Category : Technology & Engineering
Total pages :400
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Piezoelectric ultrasonic motors offer many advantages such as high retention being very controllable, high torque at low speed, light weight, simple structure and no electromagnetic field induction compared with the conventional electromagnetic motors. These advantages have helped to expand the application fields where precise position control and rotational/linear motions can be utilized. One of the most remarkable features of the compact ultrasonic motor is that it has higher design flexibility compared with that of the conventional electromagnetic motors whose efficiency significantly decreases with miniaturization. In order to build a novel ultrasonic motor for a specific purpose, it is essential to examine the structural design and the electrical and mechanical properties prior to preparing a real motor. The ATILA simulation tool offers useful information related to the performance for a designed piezoelectric ultrasonic motor. A real motor can therefore easily be manufactured with minimized trial and error. In this chapter, two types of tiny motors are presented, including the process of ATILA simulation and the fabrication of ultrasonic piezoelectric motors.

Applications of ATILA FEM software to smart materials

Applications of ATILA FEM software to smart materials
Author : A. Loussert,J.-C. Debus,G. Vanderborck
Publisher : Elsevier Inc. Chapters
Release Date : 2012-11-27
Category : Technology & Engineering
Total pages :400
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For underwater applications and manufacture of sonar for autonomous underwater vehicles (AUV), large areas of piezoelectric materials with very good electromechanical properties are often needed. Piezoelectric single crystals (typically the compositions PMN-PT or PZN-PT) are high-performance materials (high yields), but are difficult to manufacture in large areas while maintaining homogeneous properties. This study on the behavior of piezoelectric single crystals will be conducted with the use of a finite-element code (ATILA) which was developed at ISEN in collaboration with the French Ministry of Defense. The results confirm the good fit between the models and experimental results after a phase of optimization.

Applications of ATILA FEM software to smart materials

Applications of ATILA FEM software to smart materials
Author : A-C. Hladky-Hennion
Publisher : Elsevier Inc. Chapters
Release Date : 2012-11-27
Category : Technology & Engineering
Total pages :400
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Periodic structures have attracted considerable interest over the past three decades. Thus, passive structures with 1D or 2D periodicity are in standard use in underwater acoustics. Moreover doubly periodic active structures, such as 1–3 piezocomposite materials made of parallel piezoelectric bars embedded in a passive matrix, are also of great interest for mine hunting, underwater or medical ultrasonic imaging. In this chapter, a brief presentation of passive and active periodic structures is described. Then, the generic model developed for periodic studies is presented for the particular case of a 1–3 piezocomposite. The periodic structure is immersed in a fluid and the transmission and reflection coefficients are calculated. The test example discussed at the end of the chapter is devoted to an actual Alberich coating and an actual 1–3 piezocomposite for which previous experimental results are available.

Applications of ATILA FEM software to smart materials

Applications of ATILA FEM software to smart materials
Author : K. Uchino
Publisher : Elsevier Inc. Chapters
Release Date : 2012-11-27
Category : Technology & Engineering
Total pages :400
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Finite element analysis can be applied to smart structures with piezoelectric or magnetostrictive materials rather successfully when neither the applying electric field nor the generating AC strain is very large and when the linear relation can be supposed in the strain vs electric field or the strain vs stress. However, further improvement in the FEM algorithm is required for high field or high power drive of the piezoelectric system, where nonlinear and hysteretic characteristics should be taken into account, as well as heat generation. In this chapter, we will discuss the high power issues. There are three hysteresis loss components for piezoelectric vibrators, i.e., dielectric, elastic and piezoelectric losses. Mechanical quality factors play a significant role in the loss study of piezoelectrics, and they are basically related to all dielectric, elastic and piezoelectric loss factors. Besides, a higher quality factor at the antiresonance is usually observed in the PZT based experiments, in comparison with that at the resonance. ATILA is the unique software for adopting dielectric, elastic and piezoelectric losses separately to calculate the impedance/admittance curve.

Applications of ATILA FEM software to smart materials

Applications of ATILA FEM software to smart materials
Author : A.-C. Hladky-Hennion
Publisher : Elsevier Inc. Chapters
Release Date : 2012-11-27
Category : Technology & Engineering
Total pages :400
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Phononic crystals (PCs) are usually defined as artificial materials made of periodic arrangement of scatterers embedded in a matrix. The band structure of PCs may present under certain conditions absolute band gaps: they display frequency ranges in which waves cannot propagate. This fact is analogous to photonic band gaps for electromagnetic waves. Therefore, such systems can be applied as noise and vibration isolation, acoustic wave guiding, acoustic filters, etc. Moreover, band structures of PCs may exhibit dispersion curves with a negative slope, inducing negative refraction phenomenon. In this chapter, the general formalism is first presented. It is applied in the second part to a phononic crystal inducing filtering application and in the last section, negative refraction of elastic waves is presented for focusing application.

FEM and Micromechatronics with ATILA Software

FEM and Micromechatronics with ATILA Software
Author : Kenji Uchino
Publisher : CRC Press
Release Date : 2018-10-03
Category : Technology & Engineering
Total pages :360
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Students preparing to work with mechatronics, particularly with highly precise and smart actuators, face the challenge of designing and analyzing devices without formal and practical guidance in computer techniques. Finally there is a textbook that is as practical as it is authoritative: Kenji Uchino's FEM and Micromechatronics with ATILA Software. Ideal for Today's Computer-Based Curricula Every aspect of this book reflects its focus on being easy to use, easy to teach from, and above all, easy to implement. The first half of the text outlines the theory needed to develop and design smart actuators and transducers, while the second half walks students step-by-step through the software implementation using seven extensive examples. Even the book's lay-flat binding makes it easy for students to follow the text while working simultaneously at a computer. The companion CD-ROM supplies a free educational version of ATILA-Light. Unified Coverage for Integrated Technologies Covering the myriad challenges posed by smart transducers, the author introduces the fundamentals of piezoelectric and magnetostrictive devices, practical materials, device designs, drive and control techniques, and typical applications. Numerous problems and examples give students ample opportunity to put the concepts into practice. Outlining a complete treatment in 30 convenient 75 minute lessons, FEM and Micromechatronics with ATILA Software is a unique classroom text that students will continue to use throughout their entire careers.

Proceedings of the ASME Dynamic Systems and Control Division

Proceedings of the ASME Dynamic Systems and Control Division
Author : Anonim
Publisher : Unknown
Release Date : 1997
Category : Automatic control
Total pages :129
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IAS '98

IAS '98
Author : IEEE Industry Applications Society. Meeting
Publisher : Unknown
Release Date : 1998
Category : Electrical engineering
Total pages :129
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Smart Structures and Materials

Smart Structures and Materials
Author : Anonim
Publisher : Unknown
Release Date : 1999
Category : Smart materials
Total pages :129
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MicroMechatronics

MicroMechatronics
Author : Kenji Uchino,Jayne Giniewicz
Publisher : CRC Press
Release Date : 2003-04-25
Category : Technology & Engineering
Total pages :504
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This reference reveals the most significant technologies, procedures, and trends in the design and application of actuator devices for micromechatronic systems. It addresses critical design and manufacturing concepts, as well as challenges in the modeling and regulation of electromechanical losses and heat generation in actuator devices. Accompanied by a CD-ROM demonstrating examples of finite-element modeling and previously developed and commercially available actuators, Micromechatronics provides insight into the future of this evolving field, and considers recent developments in micropositioning technology and displacement transducer, motor, and ultrasonic motor applications.

The Finite Element Method and Applications in Engineering Using ANSYS®

The Finite Element Method and Applications in Engineering Using ANSYS®
Author : Erdogan Madenci,Ibrahim Guven
Publisher : Springer
Release Date : 2015-02-10
Category : Technology & Engineering
Total pages :657
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This textbook offers theoretical and practical knowledge of the finite element method. The book equips readers with the skills required to analyze engineering problems using ANSYS®, a commercially available FEA program. Revised and updated, this new edition presents the most current ANSYS® commands and ANSYS® screen shots, as well as modeling steps for each example problem. This self-contained, introductory text minimizes the need for additional reference material by covering both the fundamental topics in finite element methods and advanced topics concerning modeling and analysis. It focuses on the use of ANSYS® through both the Graphics User Interface (GUI) and the ANSYS® Parametric Design Language (APDL). Extensive examples from a range of engineering disciplines are presented in a straightforward, step-by-step fashion. Key topics include: • An introduction to FEM • Fundamentals and analysis capabilities of ANSYS® • Fundamentals of discretization and approximation functions • Modeling techniques and mesh generation in ANSYS® • Weighted residuals and minimum potential energy • Development of macro files • Linear structural analysis • Heat transfer and moisture diffusion • Nonlinear structural problems • Advanced subjects such as submodeling, substructuring, interaction with external files, and modification of ANSYS®-GUI Electronic supplementary material for using ANSYS® can be found at http://link.springer.com/book/10.1007/978-1-4899-7550-8. This convenient online feature, which includes color figures, screen shots and input files for sample problems, allows for regeneration on the reader’s own computer. Students, researchers, and practitioners alike will find this an essential guide to predicting and simulating the physical behavior of complex engineering systems."

Handbook of Laser Welding Technologies

Handbook of Laser Welding Technologies
Author : S Katayama
Publisher : Elsevier
Release Date : 2013-06-30
Category : Technology & Engineering
Total pages :654
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Laser welding is a rapidly developing and versatile technology which has found increasing applications in industry and manufacturing. It allows the precision welding of small and hard-to-reach areas, and is particularly suitable for operation under computer or robotic control. The Handbook of laser welding technologies reviews the latest developments in the field and how they can be used across a variety of applications. Part one provides an introduction to the fundamentals of laser welding before moving on to explore developments in established technologies including CO2 laser welding, disk laser welding and laser micro welding technology. Part two highlights laser welding technologies for various materials including aluminium and titanium alloys, plastics and glass. Part three focuses on developments in emerging laser welding technologies with chapters on the applications of robotics in laser welding and developments in the modelling and simulation of laser and hybrid laser welding. Finally, part four explores the applications of laser welding in the automotive, railway and shipbuilding industries. The Handbook of laser welding technologies is a technical resource for researchers and engineers using laser welding technologies, professionals requiring an understanding of laser welding techniques and academics interested in the field. Provides an introduction to the fundamentals of laser welding including characteristics, welding defects and evolution of laser welding Discusses developments in a number of techniques including disk, conduction and laser micro welding Focusses on technologies for particular materials such as light metal alloys, plastics and glass

Ferroelectric Devices

Ferroelectric Devices
Author : Kenji Uchino
Publisher : CRC Press
Release Date : 2018-09-03
Category : Science
Total pages :367
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Updating its bestselling predecessor, Ferroelectric Devices, Second Edition assesses the last decade of developments—and setbacks—in the commercialization of ferroelectricity. Field pioneer and esteemed author Uchino provides insight into why this relatively nascent and interdisciplinary process has failed so far without a systematic accumulation of fundamental knowledge regarding materials and device development. Filling the informational void, this collection of information reviews state-of-the-art research and development trends reflecting nano and optical technologies, environmental regulation, and alternative energy sources. Like the first edition, which became a standard in the field, this volume provides a general introduction to ferroelectrics with theoretical background. It then addresses practical design and device manufacturing, including recently developed processes and applications. Updating old data with a forecast of future developments, the text analyzes improvements to original ferroelectric devices to aid the design process of new ones. The second edition includes new sections on: Pb-free piezoelectrics Size effect on ferroelectricity Electrocaloric devices Micro mass sensor Piezoelectric energy harvesting Light valves and scanners Multi-ferroic devices, including magneto-electric sensors Uchino provides a general introduction to the theoretical background of ferroelectric devices, practical materials, device designs, drive/control techniques, and typical applications. He presents frequently asked questions from students, lab demonstrations for practical understanding, and "check point" quizzes and model solutions to monitor understanding. After a thorough exploration of ferroelectric devices and their past, this book looks to the industry’s future, assessing market size and remaining reliability/lifetime issues. The author also unveils his strategy for developing "best-selling" ferroelectric devices.