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结构自振特性的分析可归结为求解动力矩阵的特征值与特征向量。矩阵迭代法是求矩阵的第一阶特征值与特征向量的一种数值方法。本文作者讨论了用矩阵迭代法求解矩阵的特征值与特征向量时的初始向量选取和循环控制条件 ,实例分析表明 ,本文作者提出的方法简单可行且具有较好的精度。
The analysis of the natural vibration characteristics of the structure can be attributed to solving the eigenvalues and eigenvectors of the dynamic matrix. Matrix iterative method is a numerical method to find the first order eigenvalue and eigenvector of the matrix. The authors discuss the initial vector selection and cyclic control conditions when using the matrix iterative method to solve the eigenvalues and eigenvectors of the matrix. The case study shows that the proposed method is simple and feasible and has good accuracy.