Seismic Random Vibration Analysis of Complex Uncertain Dynamic Systems
The random uncertainties of the mass, damping and stiffness matrices in finite element models are modeled by random matrices, and a highly efficient pseudo excitation method for dynamic response analysis of nonparametric probability systems subjected to stationary random loading is developed. A numerical example shows that the dynamic responses of a conventional (i.e. the mean-valued) finite element model may be quite different from those based on the random matrix model. For precise manufacturing, the uncertainties of models can not be ignored and the proposed method will be quite useful in the analysis of such problems.
nonparametric probabilistic model random vibration pseudo excitation method
Y. Zhao J.H. Lin
State Key Laboratory of Structural Analysis for Industrial Equipment, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Liaoning, China
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）