Hybrid Finite-Element Method for Discretizing Cylindrically Symmetric Parts in Electrotechnical Models

Conference: CEM 2006 - 6th International Conference on Computational Electromagnetics
04/04/2006 - 04/06/2006 at Aachen, Germany

Proceedings: CEM 2006

Pages: 2Language: englishTyp: PDF

Personal VDE Members are entitled to a 10% discount on this title

Gersem, H. De; Koch, S.; Weiland, T. (Institut für Theorie Elektromagnetischer Felder, Technische Universität Darmstadt, Germany)

When the geometry, the excitations and the boundary conditions of an electrotechnical model feature a transversal or cylindrical symmetry, the electromagnetic fields are known to preserve this symmetry. Then, the model is commonly discretized by a 2D cartesian or axisymmetric finite-element (FE) mesh respectively. In many models, however, only parts of the geometry are symmetric. Then, the electromagnetic fields are in general not symmetric and a full 3D model is required. In this paper, such partially symmetric model parts are discretized by a hybrid FE method in order to reduce the problem size and to improve the simulation efficiency.