轴对称涡流场的新型等效源法

THE NEW STYLE EQUIVALENT SOURCE METHOD OF AXISYMMETRICAL EDDY CURRENT FIELD

本文把轴对称静态场中的新型等效源法推广到轴对称涡流场中，提出了轴对称涡流场的新型等效源法，该法中等效源的位置和个数可给以确定，由它产生的场分布可用级数表示，克服了以前等效源法中等效源的位置和个数只能凭经验决定的缺点。实例计算表明，本方法编程简单、精度高，而且所求的未知数少。

Based on new style equivalent source method of axisymmetrical static field, this paper proposes a new style equivalent source method of axisymmetrical eddy current field, in which the number and positions of all the ES can be determined and the field distribution in all subregions is expressed in series form. As an example, the field distribution in axisymmetrical eddy current field has been calculated using the method. The calculated results show that this approach gives higher precision and number of unknowns to be solved is less than that of FEM or BEM.