有限元一边界元耦合中刚度矩阵对称化的方法及其应用

A Method Symmetring Coefficient Matrix in Coupling Finite Element with Boundary Element and Application

本文提出了一种适用于无限域,半无限域中有限元一边界元耦合时刚度矩阵对称化的方法,并将其推广到了一般情况.文中还对文献[1]的方法作了评述,指出[1]的方法成立是有条件的.最后给出了两个计算实例,计算表明,该方法具有简单易行,节约容量和精度高的优点.关键词:对称化。

In the paper,the author presents a method symmetring coefficient matrix in coupling finite element with boundary element,which is suitable infinite and hallf infinite domain, and compares its results with analysis and other numerica results. The computation shows that the method has advantage of simplicity, economizing storage and high accuracy.