摘要
本文提出一种用于结构可靠性分析的随机有限元-最大熵法。它是利用随机有限元法计算结构响应量的前几阶矩,然后利用最大熵法拟会响应量的概率分布,据此算出结构的失效概率。此法具有精度较高、计算量较小的优点。
This paper presents the stochastic finite element--
maximum entropy method for reliability analysis of structures subjected to random loads with stochastically varying properties. In this method, firstly the structure response of uncertainties is evaluated using Neumann SFEM, and then the probability of failure of the structure is obtained using maximum entropy method. The numerical examples show that the method has higher accuracy for structural reliability analysis and the computational efforts are reduced.
出处
《工程力学》
EI
CSCD
1992年第3期1-7,共7页
Engineering Mechanics
关键词
随机有限元法
最大熵法
结构可靠性
stochastic finite element method, structural reliability, maximum entropy method, probability of failure.
