Numerical Approximation of the Magnetoquasistatic Model with Uncertainties

Numerical Approximation of the Magnetoquasistatic Model with Uncertainties PDF Author: Ulrich Römer
Publisher: Springer
ISBN: 3319412949
Category : Technology & Engineering
Languages : en
Pages : 128

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Book Description
This book presents a comprehensive mathematical approach for solving stochastic magnetic field problems. It discusses variability in material properties and geometry, with an emphasis on the preservation of structural physical and mathematical properties. It especially addresses uncertainties in the computer simulation of magnetic fields originating from the manufacturing process. Uncertainties are quantified by approximating a stochastic reformulation of the governing partial differential equation, demonstrating how statistics of physical quantities of interest, such as Fourier harmonics in accelerator magnets, can be used to achieve robust designs. The book covers a number of key methods and results such as: a stochastic model of the geometry and material properties of magnetic devices based on measurement data; a detailed description of numerical algorithms based on sensitivities or on a higher-order collocation; an analysis of convergence and efficiency; and the application of the developed model and algorithms to uncertainty quantification in the complex magnet systems used in particle accelerators.

Numerical Approximation of the Magnetoquasistatic Model with Uncertainties

Numerical Approximation of the Magnetoquasistatic Model with Uncertainties PDF Author: Ulrich Römer
Publisher: Springer
ISBN: 3319412949
Category : Technology & Engineering
Languages : en
Pages : 128

Get Book Here

Book Description
This book presents a comprehensive mathematical approach for solving stochastic magnetic field problems. It discusses variability in material properties and geometry, with an emphasis on the preservation of structural physical and mathematical properties. It especially addresses uncertainties in the computer simulation of magnetic fields originating from the manufacturing process. Uncertainties are quantified by approximating a stochastic reformulation of the governing partial differential equation, demonstrating how statistics of physical quantities of interest, such as Fourier harmonics in accelerator magnets, can be used to achieve robust designs. The book covers a number of key methods and results such as: a stochastic model of the geometry and material properties of magnetic devices based on measurement data; a detailed description of numerical algorithms based on sensitivities or on a higher-order collocation; an analysis of convergence and efficiency; and the application of the developed model and algorithms to uncertainty quantification in the complex magnet systems used in particle accelerators.

Mathematical Models for Eddy Currents and Magnetostatics

Mathematical Models for Eddy Currents and Magnetostatics PDF Author: Rachid Touzani
Publisher: Springer Science & Business Media
ISBN: 9400702027
Category : Computers
Languages : en
Pages : 309

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Book Description
This monograph addresses fundamental aspects of mathematical modeling and numerical solution methods of electromagnetic problems involving low frequencies, i.e. magnetostatic and eddy current problems which are rarely presented in the applied mathematics literature. In the first part, the authors introduce the mathematical models in a realistic context in view of their use for industrial applications. Several geometric configurations of electric conductors leading to different mathematical models are carefully derived and analyzed, and numerical methods for the solution of the obtained problems are given. Related issues such as convergence of the approximations and error estimates are discussed. The second part of the monograph presents various coupled problems that involve eddy current or magnetostatic problems, in particular magneto-hydrodynamic problems and magnetic shaping problems concerning the melt flow of electrically conducting metals, induction heating processes, inductively coupled plasmas and ferromagnetic screening modeling. The presentation of each model comes with numerical illustration from industrial applications.

Numerical Analysis of Electromagnetic Fields

Numerical Analysis of Electromagnetic Fields PDF Author: Pei-bai Zhou
Publisher: Springer Science & Business Media
ISBN: 3642503195
Category : Mathematics
Languages : en
Pages : 419

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Book Description
Numerical methods for solving boundary value problems have developed rapidly. Knowledge of these methods is important both for engineers and scientists. There are many books published that deal with various approximate methods such as the finite element method, the boundary element method and so on. However, there is no textbook that includes all of these methods. This book is intended to fill this gap. The book is designed to be suitable for graduate students in engineering science, for senior undergraduate students as well as for scientists and engineers who are interested in electromagnetic fields. Objective Numerical calculation is the combination of mathematical methods and field theory. A great number of mathematical concepts, principles and techniques are discussed and many computational techniques are considered in dealing with practical problems. The purpose of this book is to provide students with a solid background in numerical analysis of the field problems. The book emphasizes the basic theories and universal principles of different numerical methods and describes why and how different methods work. Readers will then understand any methods which have not been introduced and will be able to develop their own new methods. Organization Many of the most important numerical methods are covered in this book. All of these are discussed and compared with each other so that the reader has a clear picture of their particular advantage, disadvantage and the relation between each of them. The book is divided into four parts and twelve chapters.

Numerical Computation of Electric and Magnetic Fields

Numerical Computation of Electric and Magnetic Fields PDF Author: Charles W. Steele
Publisher: Springer Science & Business Media
ISBN: 9401571430
Category : Science
Languages : en
Pages : 234

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Book Description
For well over a decade, the numerical approach to field computation has been gaining progressively greater importance. Analytical methods offield compu tation are, at best, unable to accommodate the very wide variety of configura tions in which fields must be computed. On the other hand, numerical methods can accommodate many practical configurations that analytical methods cannot. With the advent of high-speed digital computers, numerical field computations have finally become practical. However, in order to implement numerical methods of field computation, we need algorithms, numerical methods, and mathematical tools that are largely quite different from those that have been traditionally used with analytical methods. Many of these algorithms have, in fact, been presented in the large number of papers that have been published on this subject in the last two decades. And to some of those who are already experienced in the art of numerical field computations, these papers, in addition to their own original work, are enough to give them the knowledge that they need to perform practical numerical field computations.

Eddy Current Approximation of Maxwell Equations

Eddy Current Approximation of Maxwell Equations PDF Author: Ana Alonso Rodriguez
Publisher: Springer Science & Business Media
ISBN: 8847015065
Category : Mathematics
Languages : en
Pages : 355

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Book Description
This book deals with the mathematical analysis and the numerical approximation of eddy current problems in the time-harmonic case. It takes into account all the most used formulations, placing the problem in a rigorous functional framework.

Proceedings of the Tenth International Symposium on Applied Electromagnetic and Mechanics

Proceedings of the Tenth International Symposium on Applied Electromagnetic and Mechanics PDF Author: T. Takagi
Publisher: IOS Press
ISBN: 9781586033293
Category : Science
Languages : en
Pages : 446

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Book Description
This publication covers topics in the area of applied electromagnetics and mechanics. Since starting in Japan in 1988, the ISEM has become a well-known international forum on applied electromagnetics.

Electrical & Electronics Abstracts

Electrical & Electronics Abstracts PDF Author:
Publisher:
ISBN:
Category : Electrical engineering
Languages : en
Pages : 2304

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Book Description


The Least-Squares Finite Element Method

The Least-Squares Finite Element Method PDF Author: Bo-nan Jiang
Publisher: Springer Science & Business Media
ISBN: 3662037408
Category : Science
Languages : en
Pages : 425

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Book Description
This is the first monograph on the subject, providing a comprehensive introduction to the LSFEM method for numerical solution of PDEs. LSFEM is simple, efficient and robust, and can solve a wide range of problems in fluid dynamics and electromagnetics.

Energy Research Abstracts

Energy Research Abstracts PDF Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 840

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Book Description


Non-linear Electromagnetic Systems

Non-linear Electromagnetic Systems PDF Author: Volkmar Kose
Publisher: IOS Press
ISBN: 9789051993813
Category : Science
Languages : en
Pages : 926

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Book Description
The contents is dominated by the latest problems of applied electrical engineering, micro electromechanics, biosensor technology and biomagnetism. The book covers the numerical calculation methods for the design and optimization of sensors, actuators and electric machines, as well as the treatment of inverse problems, in materials testing and in the field of medicine in particular. Other central topics are the material properties and their simulation and much consideration is given to micro-electromechanics.