Intelligent Computer Techniques in Applied Electromagnetics

ISBN-13: 9783642097232 / Angielski / Miękka / 2010 / 304 str.

Slawomir Wiak; Andrzej Krawczyk; Ivo Dolezel

Opis

This book contains papers presented at the International Symposium on Elect- magnetic Fields in Mechatronics, Electrical and Electronic Engineering ISEF'07 which was held in Prague, the Czech Republic, from September 13 to 15, 2007. ISEF conferences have been organized since 1985 and from the very beginning it was a common initiative of Polish and other European researchers who have dealt with electromagnetic ?eld in electrical engineering. The conference travels through Europe and is organized in various academic centres. Relatively often, it was held in some Polish city as the initiative was on the part of Polish scientists. Now ISEF is much more international and successive events take place in different European academic centres renowned for electromagnetic research. This time it was Prague, famous for its beauty and historical background, as it is the place where many c- tures mingle. The venue of the conference was the historical building of Charles University, placed just in the centre of Prague. The Technical University of Prague, in turn, constituted the logistic centre of the conference. It is the tradition of the ISEF meetings that they try to tackle quite a vast area of computational and applied electromagnetics. Moreover, the ISEF symposia aim at combining theory and practice; therefore the majority of papers are deeply rooted in engineering problems, being simultaneously of a high theoretical level.

Spis treści

Algorithms and Intelligent Computer Methods.- Comparison of Two Multi-Agent Algorithms: ACO and PSO for the Optimization of a Brushless DC Wheel Motor.- Generalized RBF Neural Network and FEM for Material Characterization Through Inverse Analysis.- Optimization of Complex Lighting Systems in Interiors with the Use of Genetic Algorithm and Elements of Paralleling of the Computation Process.- Transformer Monitoring System Taking Advantage of Hybrid Wavelet Fourier Transform.- SALHE-EA: A New Evolutionary Algorithm for Multi-Objective Optimization of Electromagnetic Devices.- Non-Standard Nodal Boundary Elements for FEM-BEM.- On the Use of Automatic Cuts Algorithm for T0 – T – ? Formulation in Nondestructive Testing by Eddy Current.- Refinement Strategy Using 3D FEM in Eddy Current Testing.- The Use of L-Curve and U-Curve in Inverse Electromagnetic Modelling.- Optimization of the HTSC-PM Interaction in Magnetic Bearings by a Multiobjective Design.- Computer Methods and Engineering Software.- Optimization of an Electromagnetic Linear Actuator Operating in Error Actuated Control System.- LMAT_SIMEL – The Electric Field Numerical Calculator of the Package LMAT_SIMX for Very High Voltage Power Lines.- Concerning 2-D Planar Open Boundary Electromagnetic System Computation.- Quadtree Meshes Applied to the Finite Element Computation of Phase Inductances in An Induction Machine.- Android Employing 3-D Finite Element Method.- An Optimized Support Vector Machine Based Approach for Non-Destructive Bumps Characterization in Metallic Plates.- The Back Reconstruction of Signals by the NMR Techniques.- 3D Edge Element Calculations of Electrical Motor with Double Cylindrical Rotor.- Sensitivity Analysis of Electromagnetic Quantities by Means of FETD and Semi-Discrete Method.- Inverse Problems in Magnetic Induction Tomography of Low Conductivity Materials.- Adaptive Plasma Identification from Internal and External Measurements.- Analytical and Numerical Solutions of Temperature Transients in Electrochemical Machining.- Optimal Frame Coherence for Animation in Global Illumination Environment.- Parallel Computations of Multi-Phase Voltage Forced Electromagnetic Systems.- Applications of Computer Methods.- Field – Circuit Coupling with the Time Domain Finite Difference Method for low Frequency Problems.- Rotor Shape Optimisation of a Switched Reluctance Motor.- Numerical Model of Optimization Lead-Acid Accumulator Grids.- Parametric Models Based on Sensitivity Analysis for Passive Components.- Optimisation of a Drive System and Its Epicyclic Gear Set.- Torque Ripple Reduction Using Evolution Optimization Method and Varying Supply Voltage.- Combined Electromagnetic and Thermal Analysis of Permanent Magnet Disc Motor.- Computer Modelling of Energy-Saving Small Size Induction Electromechanical Converter.- Integral Parameters of the Magnetic Field in the Permanent Magnet Linear Motor.- Field Analysis of a Disc-Shaped Dielectric Motor.- Fictitious Magnetic Contours as Eddy Currents Exciter.- Non-Destructive Testing for Cracks in Special Conductive Materials.

Blurb

This book contains selected papers presented at the International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering ISEF'07 which was held in Prague, Czech Republic, September 13-15, 2007. It is the tradition of ISEF meetings that they try to tangle quite a vast area of computational and applied electromagnetics. The methods of evaluation and control of electromagnetic field which base on Artificial Intelligence (AI) constitute the core of majority of the papers presented during ISEF’07 conference. The papers selected to this volume are linked with the AI theory and methodology, i.e. they do not use the numerical method automatically but they attempt to contribute some new AI tools to computer modelling.

The papers selected into three chapters represent the following topics: Algorithms and Intelligent Computer Methods, Computer Methods and Engineering Software, Applications of Computer Methods. The first chapter is focused on information techniques. The reader may find here such problems as multi-agent algorithms, neural networks, genetic algorithms, wavelet transformation, paralleling of computation problems, monitoring and others. In second chapter one can find papers which deal with numerical modelling of such devices as high voltage power lines, actuators, NMR and induction tomography, adaptive plasma, electrochemical machining and others. The third group consists of the papers dealing with the application of advanced algorithms and methods to selected engineering problems, dealing with optimization of a Drive System, Combined Electromagnetic and Thermal Analysis by means of approximate methods, combined Finite Element Method (FEM) and Finite Volume Method (FVM), algorithms based on stochastic methods and others.