摘要
一、引言 在用边界单元法求解实际工程问题时,我们首先导出相应的边界积分方程,然后再去求其数值解。为此,就需要对所研究物体的边界部分单元确定结点,利用单元插值函数来表示每个边界单元上的边界量。这样,边界积分方程就被化成一个以结点处未知边界量为未知量的线性代数方程组。求解这个线性代数方程组后。
This paper describes the composite boundary element method in which different types ofelements are used according to the condition of boundary and boundary physical quantities.Linking of different elements, the type of 1inking-elements and nodes, construction of the shapefunction in linkingelements, and calculation of coefficients in linear equations are discussed.Results of an example calculated by the composite boundary element method are presented andcompared with those obtained by the ordinary boundary element method.
出处
《数值计算与计算机应用》
CSCD
北大核心
1989年第3期149-156,共8页
Journal on Numerical Methods and Computer Applications
基金
四川省科委和重庆市科委批准的应用基础研究专项经费资助
