3-DIMENSIONAL MAGNETIC-FIELD ANALYSIS METHOD USING SCALAR POTENTIAL FORMULATED BY BOUNDARY ELEMENT METHOD

被引：11

作者：

KOIZUMI, M

ONISAWA, M

UTAMURA, M

机构：

[1] Energy Research Lab., Hitachi Ltd., Hitachi

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1990年 / 26卷 / 02期

关键词：

Magnetic Materials - Mathematical Techniques--Boundary Value Problems;

D O I：

10.1109/20.106328

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A computational method for magnetic fields formulated by a BEM(boundary element method) has been developed. In the method, a reduced scalar potential is selected as an unknown variable to simplify calculation procedures of boundary conditions. Its use requires a high numerical accuracy of the potential gradient. Conventional BEM does not provide this, because numerical element integration for the singular kernel causes a large error. To overcome this difficulty, a highly accurate numerical integration scheme is proposed based on the BEM, and it is applied to magnetic field problems. Both calculation results of spherical permeable material in a uniform magnetic field intensity and a problem proposed by IEEJ (The Institute of Electrical Engineers of Japan) agreed with the exact solution and the experimental data within 5%. © 1990, IEEE. All rights reserved.

引用

页码：360 / 363

页数：4