摘要
提出了结构可靠度分析的变f序列响应面法和相应的收敛控制准则 ,并应用于非线性极限状态函数的可靠度计算 .该方法用简单的二次函数逐步逼近原来的复杂函数 ,并由该二次函数计算可靠指标的近似值 .这一方法简化了迭代计算过程 ,减少了迭代次数 ,有效地提高了计算精度和计算效率 ,对于大型复杂结构的可靠度分析较为适宜 ,并可推广应用于动力问题等的可靠度分析 .
A sequential response surface method with various f and a criterion of convergence are proposed for calculation of structural reliability analysis. The method may alleviate the complex function by giving a simple two-order function which can then be used for the reliability analysis. The computing procedure is simplified and the precison of calculation of the reliability is improved. It is suitable for large and complicated structures and can be extended to dynamic reliability analysis.
出处
《河海大学学报(自然科学版)》
CAS
CSCD
北大核心
2001年第2期75-78,共4页
Journal of Hohai University(Natural Sciences)
基金
国家自然科学基金!重点项目 (5 9719180 )
关键词
非线性
极限状态函数
序列响应面法
结构可靠度
nonlinear
limit state function
sequence response surface method
reliability analysis