大型结构频率方程的分块直接解法

大型结构频率方程的分块直接解法 THE DIRECT SOLUTION BY BLOCKS FOR LARGE FREQUENCY EQUATIONS 叶碧泉 Ye Biquan first-author 本文根据结构频率方程简化的思想,将一个高阶广义特征值问题的求解,用逐步分块法（分块数由计算机内存容量大小决定）化成若干个较低阶的广义特征值问题进行计算。分块过程统一、简单,可望解决求解大型高阶广义特征值问题时,内存容量足以及计算时间过长的矛盾。 This paper is based on the series expansion of matrix （E—A） -1 and reduced the high order eigen-problem into severel lower order eigen-problems. The scheme of this solution process is rather simple and unitized. This method is suitable to the frequency analysis in one kind of large structures. 1981-03-01 2021-04-01 3