RANDOM VIBRATION OF SYSTEM WITH FINITELY MANY DEGREES OF FREEDOM AND SEVERAL COALESCENT NATURAL FREQUENCIES

被引:3
作者
LUBLINER, E
ELISHAKOFF, I
机构
[1] Technicon-Israel Inst of Technology, Haifa, Isr, Technicon-Israel Inst of Technology, Haifa, Isr
关键词
MATHEMATICAL TECHNIQUES - Eigenvalues and Eigenfunctions;
D O I
10.1016/0020-7225(86)90038-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This study deals with random vibration of a system with finitely many degrees of freedom and two sets of eigenvalues: a single separate one representing the natural frequency of a single-degree-of-freedom structure - and all the others, which are coalescent. It is shown that as the number of degrees of freedom tends to infinity, the error introduced by omission of the cross-correlation terms reached 70%.
引用
收藏
页码:461 / 470
页数:10
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