关于精确结构静力重分析法的注记

Note on exact structural static re-analysis method

结构重分析是与结构优化设计紧密相关的分析环节。位移约束条件、载荷与单元刚度矩阵可修改的精确结构静力重分析是较新的一种方法,文献[1,2]提出其结构静力重分析的列式,这一重分析方法被多篇综述文章引用。本文从另一角度推导结构修改的基本方程,并给出广义柔度矩阵的简便可行算法,推导过程简单明了,力学意义明显。

Structural re\|analysis is an inseparable analysis stage of structural optimizations. The exact re\|analysis method given by references that allows simultaneous modifications of displacement restraint, load and element stiffness is a newer approach and is cited by several publications. In this paper, we reformulate this approach from a different view of point and give a simple and feasible computational procedure. The reformulation is more convenient than the original one and has clear physical explanation.