用MRVDS方法求解振动特征值的若干问题

ON THE CONVERGENCE AND ROOT-MISSING PROBLEM OF THE MRVDS METHOD

本文对修正的Ritz矢量直接叠加法(MRVDS方法)求解广义特征值问题的收敛性及漏根问题进行了分析,并建议了简便实用避免漏根的改进方法。计算实例表明,建议的改进方法得出了满意的结果。

In this paper, the convergence and the root-missing problem of the Modified Ritz Vectors Direct superposition method in solving generalized eigenproblems are analyzed. A simple and effective method to handle the root-missinq problem is presented.