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A comparative study of response surface method and stochastic response surface method for structural reliability analysis
Author(s): 
Pages: 46-53
Year: Issue:  1
Journal: Engineering Journal of Wuhan University

Keyword:  reliabilityresponse surface methodstochastic response surface methodperformance functionconvergence;
Abstract: 从拟合功能函数方法、计算精度与效率、收敛性等方面对响应面法和随机响应面法进行了系统地分析.算例表明:与响应面法相比,随机响应面法实现了真正意义上的非侵入式分析.响应面法采用二次多项式响应面函数仅仅在验算点附近能较好地拟合真实功能函数,而随机响应面法采用高阶Hermite随机多项式,能在整个空间上很好地拟合真实功能函数.当随机变量个数较少时,随机响应面法的计算精度和效率均优于响应面法.并且随机响应面...
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