摘要
针对工程中隐式功能函数的可靠性分析问题,提出一种采用插值法选取试验点的改进Kriging近似方法。所提方法通过内插法选取Kriging近似所需的试验点,内插策略使得试验点逼近真实的极限状态方程,从而使Kriging方法能更好地近似对可靠性分析具有重要贡献的极限状态方程。文中算例表明该方法原理简单,计算精度高且计算量不大,具有一定的工程应用价值。
For reliability analysis of implicit limit state equation in engineering, an interpolation based Kriging approximation method is presented. In the presented method, the interpolation is employed to determine experimental points for Kriging approximation. Since interpolation strategy can make experimental points closely approach actual limit state equation which contributes to the reliability analysis significantly, the Kriging model can fit the actual limit state equation better. Simple procedure, high computational precision and small computational effort are advantages of the presented method, which is demonstrated by given examples.
出处
《机械强度》
CAS
CSCD
北大核心
2009年第4期615-619,共5页
Journal of Mechanical Strength
基金
国家自然科学基金(NSFC10572117)
新世纪人才支持计划(NCET-05-0868)
航空科学基金(2007ZA53012)
863计划(2007AA04Z401)资助项目~~
