摘要
本文推广了文献[1]分析平稳随机地震响应的精确高速算法,使得在演变随机激励下线性结构的非平稳地震响应很容易地获得了解决。对一些重要的包络函数g(t),本文通过简单的频域分析求出了精确的时变功率谱密度。
In this paper,an accurate, efficient and simple method,i, e/pseudo-excitation method,for dealing with non-stationary stochastic seismic responses of structures subjected to evolutionary random excitations is given. For some important modulating functions,accurate and analytic time-dependent power spectral densities of responses are worked out by means of simple frequency domain analyses.
出处
《地震工程与工程振动》
CSCD
北大核心
1993年第1期24-29,共6页
Earthquake Engineering and Engineering Dynamics
基金
中国自然科学基金
英国皇家学会资助
