Scientific Computing in Electrical Engineering

rd This book presents a collection of selected contributions presented at the 3 International Workshop on Scientific Computing in Electrical Engineering, SCEE-2000, which took place in Warnemiinde, Germany, from August 20 to 23, 2000. Nearly hundred scientists and engineers from thirteen countries gathered in Warnemiinde to participate in the conference. Rostock Univer­ sity, the oldest university in Northern Europe founded in 1419, hosted the conference. This workshop followed two earlier workshops held 1997 at the Darmstadt University of Technology and 1998 at Weierstrass Institute for Applied Anal­ ysis and Stochastics in Berlin under the auspices ofthe German Mathematical Society. These workshops aimed at bringing together two scientific communi­ ties: applied mathematicians and electrical engineers who do research in the field of scientific computing in electrical engineering. This, of course, is a wide field, which is why it was decided to concentrate on selected major topics. The workshop in Darmstadt, which was organized by Michael Giinther from the Mathematics Department and Ursula van Rienen from the Department of Electrical Engineering and Information Technology,brought together more than hundred scientists interested in numerical methods for the simulation of circuits and electromagnetic fields. This was a great success. Voices coming from the participants suggested that it was time to bring these communities together in order to get to know each other, to discuss mutual interests and to start cooperative work. A collection of selected contributions appeared in 'Surveys on Mathematics for Industry', Vol.8, No. 3-4 and Vol.9, No.2, 1999.

Inhalt

Multi-Time PDEs for Dynamical System Analysis.- Edge Finite Elements of Variable Order for Maxwell's Equations.- A Common-Mode Skeleton Model for EMC Simulations.- Computational Electromagnetism in Transformer and Switchgear Design: Current Trends.- Numerical Algorithms for the Calculation of Magneto-Quasistatic Fields Using the Finite Integration Technique.- Parallel Maxwell Solvers.- Simulation of Electric Field Strength and Force Density on Contaminated H-V Insulators.- Commercial EM Codes Suitable for Modeling of Microwave Heating - a Comparative Review.- On the Representation of Differential Forms by Potentials in Dimension 3.- Hysteresis Models for Transient Simulation.- Calculation of Frequency Domain Parameters in Lossfree and Lossy Structures Using the FI-Technique and a Modal Approach.- Statistical Simulation Approach to Inverse Geoelectric Problem.- A Scalar BEM for Time Harmonic Eddy Current Problems with Impedance Boundary Conditions.- Appraisal of Asymptotics in Electromagnetic Field Calculations.- Shape Optimization of Homogeneous Electromagnets.- Field Calculations of High Accuracy by BEM Using Extrapolation.- Calculation of Electromagnetic Eigenmodes in Complex Structures Using Coupled S-Parameter Calculation.- Multigrid Solvers for Poisson's Equation in Computational Electromagnetics.- Model Design Criteria for Integrated Circuits to Have a Unique Solution and Good Numerical Properties.- CHORAL - A One Step Method as Numerical Low Pass Filter in Electrical Network Analysis.- Periodic Steady-State Analysis of Free-running Oscillators.- Efficient Analysis of Oscillatory Circuits.- Robust Limit Cycle Calculations of Oscillators.- Multirate ROW Methods of Mixed Type for Circuit Simulation.- Neural Networks for Device and Circuit Modelling.- Sub-micrometer Bipolar Transistor Modeling Using Neural Networks.- Numerical Simulation for Lossy Microwave Transmission Lines Including PML.- Electromagnetic Simulation of Real-Life Circuits: A Mobile Phone Power Amplifier Module and an FM Radio Tuner PCB.- Error Indicator and Adaptive Meshing for Hierarchical FEM-Simulation of Waveguides.- A Parallelizable GMRES-type Method for p-cyclic Matrices, with Applications in Circuit Simulation.- Parallel Algorithms for Solving Linear Equations in VLSI Circuit Simulation.- Investigation of Time Step Control for the Mixed-Level Device/Circuit Simulation of SiGe Bipolar Microwave Power Amplifiers.- Symmetrical Retarded Current Source Model for Transient Field Coupling on Interconnects.- Iterative Solution of Systems of Linear Equations in Microwave Circuits Using a Block Quasi-Minimal Residual Algorithm.- A Survey on Parameter Extraction Techniques for Coupling Electromagnetic Devices to Electric Circuits.- A Mathematical Framework for the Finite Element Modelling of Electromechanical Problems.- Dual Magnetodynamic Finite Element Formulations with Natural Definitions of Global Quantities for Electric Circuit Coupling.- Induction Heating of Thin Slabs in Nonmagnetic Media.- Krylov Subspace Methods for Harmonic Balanced Finite Element Methods.- The "Modified Trapezoidal Rule" (?-Method) for the Integration of DAEs Modelling an Electro-Mechanical Drive Including External Circuitry and Magnetic Field-Distribution.- Analysis of Coupled Electromagnetic and Thermal Fields in the Instationary Case.- On the Evaluation of Transients in Conducting Ferromagnetic Cores.