【摘要】 讨论应用等效源方法(包括圆形和矩形-圆形等效源)求解二维恒定电场边值问题时,等效源的类型、圆形等效源的设置原则(包括数目和具体位置安排)及等效源阶数取值的选择问题。给出了等效源阶数取值优化选择的一种可行方法:在等效源的类型和圆形等效源设置已确定时,先借助于可视化技术来确定各个等效源阶数的较佳取值范围;再将较佳取值范围内的阶数取值作为循环变量进行循环求解计算;最后应用解的图形显示对计算结果进行筛选,即可获得阶数的最佳取值以及场的最优解,提高了解题效率和计算精度。更多还原

【Abstract】 The selection of the kind, the number, the positions and the orders of the equivalent sources is investigated when the equivalent source method (the circular and the rectangular-circular equipment source method) is applied for a 2-D electrostatic field problem. The guide rules are explained and the way to optimize the orders of the equivalent sources is presented. After the equivalent source is setting, determining the order range of the every equivalent source with the help of visualization, and calculating the field cyclically using the orders from the ranges as cyclic variables, then sieving the solutions with the help of the display of field distribution or isopotential plot, the optimization of the equivalent source orders would be realized. The realization of the optimization of the equivalent source orders makes the method efficient.更多还原