非平稳激励下结构动力可靠度计算  

THE COMPUTATION OF STRUCTURE DYNAMIC RELIABILITY UNDER UNSTEADY EXCITATION

作　　者：王超[1] 徐晖[1] 高耀南 罗允同[1] 

机构地区：[1]西安交通大学工程力学系

出　　处：《西安交通大学学报》1993年第4期47-52,20,共7页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金

摘　　要：在非平稳激励下,讨论了结构的动力可靠性:对响应为高斯分布时,给出了以概率乘积形式表示的可靠度表达式;对更广泛的分布形式,文中利用有序统计和极值理论,给出结构响应的可靠度简化计算方法.并以某类继电器为例,计算了继电器接触系统的动力可靠性.This paper discusses a computation method of structure dynamic reliability under unsteady excitation. It gives the reliability expression in the form of probability multiplication when the response follows Gauss distribution. To the more extensive distribution condition, the paper adopts the theory of ordered statistics and the extreme value theory, and gives a simplified computing method of structure response reliability. Finally, it computes the dynamic reliability of a relay contact system as an example.

关 键 词：随机振动 可靠性估计 结构 

分 类 号：O324[理学—一般力学与力学基础]