摘要
基于随机有限元方法，在振型叠加法计算结构系统动力响应的过程中，通过求偏导数运算得到结构响应对原始随机变量的概率统计量，提出建立在一次二阶矩理论基础上的结构系统动力可靠性分析方法。作为一个算例，对一塔式起重机结构进行动力可靠度计算。
Based on stochastic finite element method,while structural response is calculated with the medal superposition method, probability information of structural response about the original random variables is got, bying applying the chain rule of differentation to the deterrnistic analysis. Dynamic realiability analaysis methods for structural system are given,that based on first order second moment approach. For an cxample,dguamic reliability is calculated for a tower carane.
出处
《中国机械工程》
CAS
CSCD
北大核心
1995年第S1期20-22,153,共4页
China Mechanical Engineering
