最近の大規模三次元有限要素解析技術と応用

摘要

It is important to design electromagnetic devices using Computer Aided Engineering (CAE) to shorten the development period and reduce costs. In this paper, I introduce examples of the latest three-dimensional finite element method (3-D FEM) for electromagnetic field analysis. I describe the three-dimensional eddy current analysis in a silicon steel sheet of an interior permanent magnet motor, the torque characteristics analysis of a hybrid stepping motor, the three-dimensional analysis of a skewed squirrel-cage induction motor, a three-dimensional eddy current analysis in the laminated silicon steel sheets of a permanent magnet-type MRI, and three-dimensional analysis of a surface permanent magnet motor using soft magnetic composites (SMC).