随机振动离散分析方法  

DISCRETE ANALYSIS METHOD OF RANDOM VIBRATION

作　　者：谭东耀[1] 

机构地区：[1]哈尔滨建筑工程学院,哈尔滨150006

出　　处：《力学学报》1992年第4期473-479,共7页Chinese Journal of Theoretical and Applied Mechanics

摘　　要：本文提出了随机振动的离散分析方法,给出了一种可以求瞬态乃至稳态均值和均方响应的递推公式,并证明了它的无条件稳定性。应用该公式可以求出线性和等价线性化的非线性振动系统的精确稳态均值和均方响应。Discrete Analysis Method of Random Vibration is proposed in this paper. Anew recurrence formula which can be used to calculate the stationary and non-stationary mean and mean square responses is given, and its unconditional stability is proved. By using of this formula, the accurate mean and mean square responses of a linear or an equivalent linearized nonlinear vibration problem can be obtained.

关 键 词：随机振动 离散分析 无条件稳定 

分 类 号：O324[理学—一般力学与力学基础]