set theory model

Compressed storage scheme and assembly procedure of global stiffness matrix in finite element analysis;

有限元刚度矩阵的压缩存贮及组集

Having used the recursive technique for dynamic equ.

根据约当变分原理，应用递推组集技术，由外层到内层逐层组装系统动力学方程，概括出一种树状多柔体系统动力学递推组集建模方法，降低了所需计算机存贮。

After analyzing the coefficient matrices of periodic structures resulted from the finite element method(FEM), a FEM with partial assemblage was put forward.

本文分析了周期结构经有限元离散所形成系数矩阵的元素分布，提出部分组集的有限元法；随后将块ＳＯＲ、块共轭梯度等方法用于求解相应的线性代数方程组，并以此改造求解大型特征值问题的Ｌａｎｃｚｏｓ算法。