摘要
在对大型结构物进行结构分析时，由于平衡方程中矩阵阶数的庞大，一些常规的计算方法往往不能满足实际需要。计算结构力学中的子结构方法由于充分考虑了结构与载荷的对称与往复循环性，使总刚度阵的阶数大为降低，极大地减少了求解的时间，因此，这一方法具有重要的实际意义。
Analysing the large type of structure,the practical need cann't be satisfied due to having the huge order of matrix in balance equations. In computational structural mechanics,substructural method will have the stiff matrix reduce greatly because of having considered the symmetry and reciprocity of structure and loading fully,the solving process of the time be reduced. therefore,the method has a significant practical sense.
关键词
子结构
有限元法
超级单元
计算结构力学
substructure
finite element method
super element
isoparametric cubical element
