利用 Ritz 向量直接迭加法进行动力分析通常比子空间迭代法平均要快十倍左右。尤其是 Ritz 向量法的步骤主要是一系列静力方程的求解。因此,本文应用分块外存求解器来求解大型结构的固有频率和振型是十分有效的,并且大大缩减了对内存容量的要求。对于内存很紧张的微型计算机,这一方法的优点则更为突出,以致使动力分折的容量提高了四倍左右。 Dynamic analysis using Ritz vector direct superposition method is usually about ten times faster than subspace iterative method. In particular, the steps of the Ritz vector method are mainly the solution of a series of static equations. Therefore, it is very effective to apply the block external memory solver to solve the natural frequency and mode shape of large-scale structures, and greatly reduce the requirements for memory capacity. For micro-computers with very tight memory, the advantages of this method are even more prominent, resulting in a four-fold increase in the capacity of power splits.