摘要
本文根据Hasofer－Lind关于结构可靠性指标的定义，提出改进的复形优化方法来计算可靠性指标，可避免复杂非线性极限状态函数的求导问题，亦可处理随机变量相关的问题。其突出的优点是，方法的通用性强，编制程序简单，便于推广应用。计算实例证明了本文方法的有效性。
In this paper, an attempt is made to present the improved complex method of optimization for computing the structural reliability index based on its geometric meaning, in which thd derivation for the nonlinear equation of ultimate state can be avoided and the problem of dependent random variables is readily dealt with. The proposed method has advantages of good generality and simple edition for programming, for which the effectiveness is demonstrated by numerical exaplmes at the end of the paper.
出处
《中国造船》
EI
CSCD
北大核心
1997年第3期60-65,共6页
Shipbuilding of China
关键词
船舶结构
可靠性指标
复形优化法
Ship structure, Reliability index, Complex method
