摘要
文中把静态子结构法与 Ritz 向量直接叠加法相结合,构成了结构动力分析的静态子结构方法,这一方法对于大型结构的动力分析问题是十分有效的。
By combining the static substructure method and the direct superposition of Ritz vectors,a new method for dynamic analysis of structures is presented in this paper.Com- paring with dynamic substructure method,it has three main advantages:1.No error exists in the analysis stage of substructure,because the static substructure method is an accurate nethod.2.Eigenvalue problems do not appear in the analysis stage of substructure.There- fore,the computation time for the dynamic analysis of structure can be reduced.3.The umber of reduced eigenvalue equations of structure is only equal to the number of Ritz vectors,and is independent of the degrees of freedom on interface between substructures.
出处
《工程力学》
EI
CSCD
1990年第1期57-66,共10页
Engineering Mechanics
关键词
结构
动力分析
静态
子结构法
Static substructure method
Ritz vectors
Dynamic analysis
