含体力问题的位移杂交边界元分析

位移杂交边界元法近年受到重视的一个研究方向，本文发现由基本解插值的场函数不能用来描述非齐次平衡方程问题，而这个问题在以往的列式中都被忽略了。

ON THE HYBRID BEM ANALYSIS FOR PROBLEMS WITH GRAVITATIONAL LOADING

In recent years, the displacement hybrid BEM (DEBEM) is paid with much attention by related researchers. However, authors of this paper discovered that, in the previous formulations, the field functions which are interpolated by fundamental solutions, can not be used in problems with nonhomo-geneous equilibrium equations. To overcome this difficulty, authors of this paper, proposed an effective measure, i.e., by the use of a group of particular solutions to transform the problem of nonhomoge-neous equations into problem of homogeneous equations, such that the analysis for problems with gravitational loading may be performed smoothly by DHBEM. In the paper, numerical examples are given to show the validity of this proposed measure.