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Optimal Control Of Induction Heating Processes

Author: Edgar Rapoport
Publisher: CRC Press
ISBN: 142001949X
Size: 21.40 MB
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This book introduces new approaches to solving optimal control problems in induction heating process applications. Optimal Control of Induction Heating Processes demonstrates how to apply and use new optimization techniques for different types of induction heating installations. Focusing on practical methods for solving real engineering optimization problems, the text features a variety of specific optimization examples for induction heater modes and designs, particularly those used in industrial applications. The book describes basic physical phenomena in induction heating and induction heating process (IHP) optimization problems as well as IHP mathematical models for practical use. It explains the fundamentals of the new exact method and the advantages it offers over other well-known methods. A sound introduction to the broad theory of optimal control, Optimal Control of Induction Heating Processes presents a clear and accessible approach to the modern design and control of practical, cost-effective induction heating processes. This book is ideal for all students, production managers, engineers, designers, scientists, and users of induction heating machinery who would like to study, design, and improve processes of induction mass heating.

Adaptive Control Strategies For The Production Of Thermo Mechanically Tailored Products

Author: Clobes, Jörg
Publisher: kassel university press GmbH
ISBN: 3862197360
Size: 73.64 MB
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Within the rapidly growing field of hot sheet metal forming and metal bulk forming the demand arises for fully three-dimensionally tailored properties at the microstructural level, nevertheless, reaching a predefined geometry with such tailored properties puts high requirements on the control mechanisms utilized in the process chain for combined heating, metal forming, and cooling processes. Therefore, the underlying control architecture needs to be freely configurable with respect to a predefined database being extendible to new geometries, microstructural distributions, and materials. The combined control of locally and temporally differential thermo-mechanical effects during the process flow needs to be based on an adaptive algorithm adjusting the process flow in real-time according to predefined parameters delivered by the aforementioned material, geometry, and microstructure property database. The interplay between measurement techniques and adaptive control processes for hot metal forming of functionally graded materials is to be investigated in order to achieve the predefined fully three-dimensional microstructure in complex geometries and optimize the process cycle time in a freely configurable control architecture being customizable to new requirements and materials, resulting in a precision manufacturing process. The emphasis within the given thesis will be on adaptive control strategies embedded within a flexible control architecture for an innovative thermo-mechanical production process embracing induction heating to predefined spatial and temporal temperature distributions, transfer, and combined metal forming as well as heat extraction processes. The flexible control architecture assures an invariant quality for the highly dynamic processes and, moreover, yields extendibility to new materials, geometries, and microstructural distributions.

Mechanical Vibration

Author: Haym Benaroya
Publisher: CRC Press
ISBN: 1420080571
Size: 61.59 MB
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Mechanical Vibration: Analysis, Uncertainties, and Control simply and comprehensively addresses the fundamental principles of vibration theory, emphasizing its application in solving practical engineering problems. The authors focus on strengthening engineers’ command of mathematics as a cornerstone for understanding vibration, control, and the ways in which uncertainties affect analysis. It provides a detailed exploration and explanation of the essential equations involved in modeling vibrating systems and shows readers how to employ MATLAB® as an advanced tool for analyzing specific problems. Forgoing the extensive and in-depth analysis of randomness and control found in more specialized texts, this straightforward, easy-to-follow volume presents the format, content, and depth of description that the authors themselves would have found useful when they first learned the subject. The authors assume that the readers have a basic knowledge of dynamics, mechanics of materials, differential equations, and some knowledge of matrix algebra. Clarifying necessary mathematics, they present formulations and explanations to convey significant details. The material is organized to afford great flexibility regarding course level, content, and usefulness in self-study for practicing engineers or as a text for graduate engineering students. This work includes example problems and explanatory figures, biographies of renowned contributors, and access to a website providing supplementary resources. These include an online MATLAB primer featuring original programs that can be used to solve complex problems and test solutions.

Advanced Vibration Analysis

Author: S. Graham Kelly
Publisher: CRC Press
ISBN: 9780849334191
Size: 31.44 MB
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Delineating a comprehensive theory, Advanced Vibration Analysis provides the bedrock for building a general mathematical framework for the analysis of a model of a physical system undergoing vibration. The book illustrates how the physics of a problem is used to develop a more specific framework for the analysis of that problem. The author elucidates a general theory applicable to both discrete and continuous systems and includes proofs of important results, especially proofs that are themselves instructive for a thorough understanding of the result. The book begins with a discussion of the physics of dynamic systems comprised of particles, rigid bodies, and deformable bodies and the physics and mathematics for the analysis of a system with a single-degree-of-freedom. It develops mathematical models using energy methods and presents the mathematical foundation for the framework. The author illustrates the development and analysis of linear operators used in various problems and the formulation of the differential equations governing the response of a conservative linear system in terms of self-adjoint linear operators, the inertia operator, and the stiffness operator. The author focuses on the free response of linear conservative systems and the free response of non-self-adjoint systems. He explores three method for determining the forced response and approximate methods of solution for continuous systems. The use of the mathematical foundation and the application of the physics to build a framework for the modeling and development of the response is emphasized throughout the book. The presence of the framework becomes more important as the complexity of the system increases. The text builds the foundation, formalizes it, and uses it in a consistent fashion including application to contemporary research using linear vibrations.

Principles Of Biomechanics

Author: Ronald Huston
Publisher: CRC Press
ISBN: 9781420018400
Size: 44.71 MB
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Research and study in biomechanics has grown dramatically in recent years, to the extent that students, researchers, and practitioners in biomechanics now outnumber those working in the underlying discipline of mechanics itself. Filling a void in the current literature on this specialized niche, Principles of Biomechanics provides readers with a solid grasp of the fundamentals and the enabling procedures of this rapidly expanding field, placing a sharp focus on dynamic phenomena in the area of whole-body biomechanics. Applies Biodynamic Models to Everyday Activities Emphasizing biodynamic modeling and the analysis of human body models, the book begins with a review of gross human anatomy and a summary of basic terminology. It describes various methods of analysis, including elementary mathematics, elementary mechanics, and the fundamental concepts of the mechanics of materials. Later chapters discuss the modeling of biosystems, tissue biomechanics, biodynamics, kinematics, kinetics, and the inertial properties of human body models. The book concludes with a review of sample applications of biodynamic models in activities such as lifting, maneuvering in space, walking, and swimming, as well as crash victim simulation. Uses simple language to convey complex principles With numerous professionals in a range of areas entering this field daily, there is a pressing need for a book which captures for a wide audience the principles of biomechanics analysis. Readily accessible to those with only a basic background in engineering fundamentals, mathematics, and physics, this text enables readers to understand virtually all areas of human body dynamics ranging from simple movements to optimal motions to accident victim dynamics.

Multiaxial Fatigue And Deformation Testing Techniques

Author: Sreeramesh Kalluri
Publisher: ASTM International
ISBN: 9780803120457
Size: 75.65 MB
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Fourteen papers from the May 1995 symposium focus on the advances that new materials testing equipment and digital computers have made possible. Representative topics: testing facilities for multiaxial loading of tubular specimens, biaxial deformation experiments over multiple string regimes, charac

Nonlinear And Optimal Control Theory

Author: Andrei A. Agrachev
Publisher: Springer Science & Business Media
ISBN: 3540776443
Size: 23.30 MB
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The lectures gathered in this volume present some of the different aspects of Mathematical Control Theory. Adopting the point of view of Geometric Control Theory and of Nonlinear Control Theory, the lectures focus on some aspects of the Optimization and Control of nonlinear, not necessarily smooth, dynamical systems. Specifically, three of the five lectures discuss respectively: logic-based switching control, sliding mode control and the input to the state stability paradigm for the control and stability of nonlinear systems. The remaining two lectures are devoted to Optimal Control: one investigates the connections between Optimal Control Theory, Dynamical Systems and Differential Geometry, while the second presents a very general version, in a non-smooth context, of the Pontryagin Maximum Principle. The arguments of the whole volume are self-contained and are directed to everyone working in Control Theory. They offer a sound presentation of the methods employed in the control and optimization of nonlinear dynamical systems.

Finite Elemente Methoden

Author: Klaus-Jurgen Bathe
Publisher: Springer
ISBN: 9783540156024
Size: 15.70 MB
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Aus den Besprechungen: "Mit der gelungenen Übersetzung wird dem deutschen Studenten, Dozenten und Ingenieur ein schon seit 1982 in den USA verbreitetes und bewährtes Standardwerk zugängig gemacht. Dieses Buch besticht zunächst dadurch, daß die Finite-Element-Methode in großer Breite abgehandelt wird. ... Dabei fehlt es nicht an Tiefe der Durchdringung und mathematischer Strenge. Didaktisch wird geschickt von jeweils einführenden Abschnitten und vielen Berechnungsbeispielen ausgegangen. ... Dieses hervorragende Lehrbuch und Nachschlagewerk dürfte auch den deutschen Fachleuten ein unentbehrlicher Begleiter werden." Schweissen & Schneiden#1 "... Im Anhang werden anhand des abgedruckten Programs STAP alle wesentlichen Aspekte, die die Implementierung der Verfahren betreffen, erörtert. Zahlreiche Zahlenbeispiele sorgen dafür, daß auch Leser mit nur geringen Vorkenntnissen den "roten Faden" nicht verlieren. Das Buch dokumentiert auf eindrucksvolle Weise den hohen Entwicklungsstandard der Methode der Finiten Elemente. Es ist ein sehr gutes Hilfsmittel für die Ausbildung von Studenten der Ingenieurwissenschaften in höheren Semestern. Darüber hinaus kann es aber auch allen interessierten Ingenieuren als Grundlagenwerk sehr empfohlen werden." Bautechnik#2