扁壳统计分析的随机边界元法

STOCHASTIC BOUNDARY ELEMENT METHOD IN STATISTICAL ANALYSIS OF SHALLOW SHELLS

本文建立了分析含随机材料参数、承受随机载荷的扁壳的随机边界元法,并结合一阶二次矩方法,给出应用本文随机边界元法分析扁壳结构可靠性的具体步骤.最后用本文所得方法计算了数例,并对结果作了必要分析.

In the paper, the stochastic boundary element method ( SBEM ) has been developed to analyze shallow shell subjected to random loads with random material parameters. Combined with the Firstorder Second-moment Method, the procedure for analyzing the reliability of shallow shells with the presented SBEM is put forward. Two numerical examples are worked out with the suggested method and some conclusions are drawn form the results.