空间相关过滤白噪声激励下结构的随机振动离散分析方法  

Discrete Analysis Method For Random Vibration of Structures Subjected to Spatially Correlated Filtered White Noises

作　　者：谭东耀[1] 杨庆山[1] 赵臣[1] 

机构地区：[1]哈尔滨建筑工程学院,403信箱150006

出　　处：《计算结构力学及其应用》1993年第2期157-166,共10页

摘　　要：以随机振动的离散分析方法为基础,讨论了在空间相关过滤白噪声激励下结构的随机振动分析,给出了计算结构均值和均方响应的具体公式,并对一空间索网结构进行了风振响应计算。Random vibration analysis of large span space structures or high-rise structures, which are subjected to spatially correlated filtered white noise excitations such as wind load and earthquake motion,has been a difficult problem in engineering computation. Based on the idea of discrete analysis method of random vibration, this paper attempts to solve this problem. The formulas of calculating structural mean and mean square responses are given. As an example,the wind-induced vibration of a cable roof structure is ananlysed by using these formulas.

关 键 词：过滤 白噪声 随机振动 空间结构 

分 类 号：O327[理学—一般力学与力学基础]