直接法框架下的模态灵敏度算法的研究进展

The Progress of Modal Sensitivity Analysis under the Frame of Direct Method

模态(特征向量)灵敏度(导数)分析的主要方法有模态法、代数法和Nelson法等。Nelson法又可称为直接法,因为它的算法结构简单且易于操作,所以它的应用十分广泛。以直接法类算法的技术特点为索引,分析和评价了直接法类中的一些重要算法,以及它们的适用性及影响。

Modal sensitivity(eigenvector)sensitivity(derivative)analysis consists of Modal Method,Algebraic Method and Nelson\s Method.Nelson\s Method is also called Direct Method.Because Direct Method is simple and easy to implement,it is well used in practice.The technique characteristic of Direct Method is taken as index,and several classical algorithms in Direct Method with their applicability and influence are analyzed and evaluated in this paper.