摘要
首次在解的三维图形和等位线图形显示的基础上研究等效源的数目、位置安排和阶数取值对解的影响。给出了确定圆形等效源的数目及位置安排的原则。当圆形等效源的数目及位置安排已确定时,各等效源的阶数分别存在着一个各不相同的取值范围:在该范围内适当调整等效源的阶数会使解的误差减小;在该范围外的阶数取值将使解的场形畸变。通过解的图形显示来判断其场形状态,直观且准确。综合应用可视化技术和场域边界校验点上的误差大小来选择等效源(包括其数目、位置及阶数等),确保应用等效源法求解恒定电(磁)场时求解结果的可靠性,极大提高了计算的精确性和工作效率。
The number and position and order of theequivalent sources employed have influence over the solution when the equivalent source method is applied to solve anelectro (or magneto) static filed. Based on the display of the tridemetional graph and the isopotential graph of the solution, the influence is studied in this paper first time. The rule of determining the number and position of the equivalent sources is given. There is a different order range to every equivalent source when the number and position of the equivalent sources employed have been determined. Changing the order from the range properly will decrease the error of the solution, but taking the order out of the range will distort the field of the solution. It would be audio-visual and exact to distinguish the situation of the field with the help of visualization of the solution. The method, which combining the visualization of the solution with the calculation error at the check dots on the borderlines of the filed to determine the equivalent sources(the number andposition and order), will make the solution reliable, more accurate and efficient.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2002年第8期71-75,共5页
Proceedings of the CSEE
基金
福建省自然科学基金项目(F99033)。
