摘要
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。
Analysis of structural dynamic characteristics resorts to “eigenproblem” solution of the dynamic matrix.Matrix iteration method is one of the methods to figure out the first eigenvalue and eigenvector of the matrix.In this paper,the selection of initial vactor and the controlling condition of the iterating cycles in the interation calculation on the matrix are discussed.The new calculation method proposed in this paper is simple to use and accurate according to the verification results of example.
出处
《四川建筑科学研究》
2000年第1期11-15,共5页
Sichuan Building Science
关键词
结构自振特性
矩阵迭代法
特征向量
循环控制
structural dynamic characteristics
iteration method of matrix
characteristic value
characteristic vector
linear unrelated
