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建立了在基本随机变量的联合概率密度未知的情况下随机结构可靠性分析的随机有限元法,阐述了受有随机载荷的多随机参数结构的失败概率的计算方法,应用已知的基本随机变量的前两阶矩和边缘概率分布函数对随机结构的可靠性进行了分析。
The stochastic finite element method for the reliability analysis of stochastic structures with unknown joint probability density of basic random variables is established. The calculation method for the failure probability of stochastic random structures with stochastic loads is described. By using the known basic random variables The first two moments and the edge probability distribution function of the random structure of the reliability analysis.