開領域を含む電界・磁界有限要素解析へのパソコンによる対応

概要

論文の詳細を見る
Recently, finite element (FE) and boundary element (BE) approaches are widely used for electrical and magnetic field analysis, in which the unbounded open domain must sometimes be considered. To cope with this situation, in the finite element analysis, some devices must be made. The simplest way among them is the use of an extra-wide domain. More reasonable and theoretically sound techniques are the use of infinite element or the usual boundary element (BE) together with the finite elements. Coupling with BE provides better results than other techniques, but the matrix bandwidth of the linear algebraic equation resulted increases with this. The infinite elements based on hybrid type variational approach is discussed in the paper. The use of the infinite elements makes it possible to reduce the domain to be analyzed and also does not increase the bandwidth of the system matrix. The paper presents the formulation of the hybrid type infinite element for axisymmetric electrical and magnetic field problems and demonstrates some numerical examples. The use of a machine word programming to accelerate calculation capacity is also discussed. The approach is very useful for the calculation by a microcomputer.
日本シミュレーション学会の論文
1985-11-15