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Flatness Based Control of Distributed Parameter...
39,80 € *
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Ever grawing performance requirements as well as new technologies require an increasing number of contral systems being designed on the basis of mathematical models comprising partial differential equations or time delays. These classes of models, and contral methods adapted to them, may be expected to play an important role in high-technology applications in the next few years, similar to what happened for nonlinear systems and nonlinear contral in the last decade.The notion of differential flatness of nonlinear finite dimensional systems, described by ordinary differential equations, has given rise to various powerful methods for motion planning and contral design. It plays an increasing rale in industrial applications of nonlinear contra!. Flatness based contral methods place an emphasis on trajectory design and open-loop contro!. Unfortunately, this aspect has not always attracted the consideration it requires both in the contral theoretic literat ure and in contral education.The careful design of feed-forward, or steering, contral gains even more importance in infinite dimension, namely for distributed parameter systems with boundary control action, the mathematical models of which comprise partial differential equations, and also for the subclass of (linear and nonlinear) time delay systems.As a consequence, the flatness based appraach has been generalized to the infinite dimensional case. Parameterizing the system trajectories by a so-called flat output, for many infinite dimensional systems efficient motion planning and open-loop (feed-forward) contral design can now be achieved in a way similar to the one followed with nonlinear flat systems. The feedback linearization and eigenvalue assignment methods known fram nonlinear finite dimensional systems have also been shown to generalize to delay systems.The emphasis of the present notes is put on the generalization of the flatness praperty to distributed parameter systems and to its use in trajectory planning and open-loop contral design. Time invariant linear systems with spatially distributed parameters and boundary contrals are treated in a systematic manner. Basic ingredients of the method are operational calculus, series expansions, and integral representations. An extension to further classes of distributed parameter systems (nonlinear, time invariant, in three space dimensions) is shown to be possible through a discussion of several examples.Before dealing with distributed parameter systems, the flatness based appraach to finite dimensional nonlinear systems is briefly recalled and its generalization to linear and nonlinear systems with (constant) time delays is outlined, too.A considerable number of examples illustrates the use of the methods praposed.

Anbieter: Dodax
Stand: 23.09.2020
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Acoustic Emission
239,00 CHF *
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The purpose of this bibliography is to list all of the known literature on acoustic emission in a single volume. The bibliography is intended to serve as a reference to the literature for those interested in the acoustic emission phenomenon, for those engaged in materials research, and for those interested in applying acoustic emission as a nonde structive testing method. It provides an invaluable reference to source materiaf for both undergraduate and graduate students interested in the subjects of acoustic emission, microseismic activity, and nondestructive testing. In addition, it provides a vaIuable desk-top reference for engineers and scientists in the fields of pressure vessel design and maintenance, stress analysis, mechanical engineering, welding engineering, nuclear engineering, metallurgy, and quality control. In compiling the bibliography every effort was made to search the literat ure for all the publications and obtain copies, index them, and publish a complete, com prehensive bibliography of the literature on acoustic emission. This bibliography is the most complete ever published. It includes essentially all of the literature on acoustic emission that has ever been published up through the first quarter of 1977. Publications listed are in the form of technical reports and memoranda, journal articles, technical presentations, proceedings, doctoral, master, and bachelor theses, patents, bound volumes, translations, and newspaper articles. Some references, however, are not technical articles, but consist of editorials or staff-written journal articles which are included because they represent apart of the literature.

Anbieter: Orell Fuessli CH
Stand: 23.09.2020
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Shape Optimization by the Homogenization Method
87,99 € *
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The topic of this book is homogenization theory and its applications to optimal design in the conductivity and elasticity settings. Its purpose is to give a self-contained account of homogenization theory and explain how it applies to solving optimal design problems, from both a theoretical and a numerical point of view. The application of greatest practical interest tar geted by this book is shape and topology optimization in structural design, where this approach is known as the homogenization method. Shape optimization amounts to finding the optimal shape of a domain that, for example, would be of maximal conductivity or rigidity under some specified loading conditions (possibly with a volume or weight constraint). Such a criterion is embodied by an objective function and is computed through the solution of astate equation that is a partial differential equa tion (modeling the conductivity or the elasticity of the structure). Apart from those areas where the loads are applied, the shape boundary is al ways assumed to support Neumann boundary conditions (i. e. , isolating or traction-free conditions). In such a setting, shape optimization has a long history and has been studied by many different methods. There is, therefore, a vast literat ure in this field, and we refer the reader to the following short list of books, and references therein [39], [42], [130], [135], [149], [203], [220], [225], [237], [245], [258].

Anbieter: Thalia AT
Stand: 23.09.2020
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Acoustic Emission
134,99 € *
ggf. zzgl. Versand

The purpose of this bibliography is to list all of the known literature on acoustic emission in a single volume. The bibliography is intended to serve as a reference to the literature for those interested in the acoustic emission phenomenon, for those engaged in materials research, and for those interested in applying acoustic emission as a nonde structive testing method. It provides an invaluable reference to source materiaf for both undergraduate and graduate students interested in the subjects of acoustic emission, microseismic activity, and nondestructive testing. In addition, it provides a vaIuable desk-top reference for engineers and scientists in the fields of pressure vessel design and maintenance, stress analysis, mechanical engineering, welding engineering, nuclear engineering, metallurgy, and quality control. In compiling the bibliography every effort was made to search the literat ure for all the publications and obtain copies, index them, and publish a complete, com prehensive bibliography of the literature on acoustic emission. This bibliography is the most complete ever published. It includes essentially all of the literature on acoustic emission that has ever been published up through the first quarter of 1977. Publications listed are in the form of technical reports and memoranda, journal articles, technical presentations, proceedings, doctoral, master, and bachelor theses, patents, bound volumes, translations, and newspaper articles. Some references, however, are not technical articles, but consist of editorials or staff-written journal articles which are included because they represent apart of the literature.

Anbieter: Thalia AT
Stand: 23.09.2020
Zum Angebot