摘要
高层的非线性工程结构对随机风激励的动力响应的预测是当前工程界十分关心的问题。本文首次考虑了随机风激励的非平稳性,讨论了一类单自由度弱非线性系统对非平稳随机风激励的响应,提出了一种简单而实用的近似分析方法。
Prediction of the dynamic response of highrise nonlinear engineering structure to random wind-excitation is of obvious practical signficance. In this paper, we consider the nonstationarity of random wind-excitation for the first time, and discuss the response of a class of single-degree-of freedom weakly nonlinear systems to nonstationary random wind-excitation, and put forward a simple and practical approximate method.
出处
《河北工学院学报》
1992年第2期73-81,共9页
Journal of Hubei Polytechnic University
关键词
风激励
非线性
工程结构
随机振动
Wind-excitation, Nonlinear engineering structurc, Nonstationarity, Single-degree-of freedom systems, Response, Auto-covariancefuncttion, Spectral density, Random vibretinn.
