摘要
提出了一种计算结构可靠性指标的负梯度矢量迭代方法，这种方法克服了一次二阶矩方法的缺点，对于非线性功能函数非常有效，数值例题表明：这种方法具有很好的收敛性和高的计算精度。
The alternative algorithm based upon negative gradient vector is proposed in the paper for calculating the structural reliability index, and which has eliminated the shortcoming of the first order second moment method, and has been effective in nonlinear performance function. The numerical results show the better characteristics of this method are accurate in calculation, with better convergence and procedure to be gained.
出处
《辽宁工学院学报》
1999年第3期24-27,75,共5页
Journal of Liaoning Institute of Technology(Natural Science Edition)
关键词
负梯度矢量
算法
非线性功能函数
结构可靠性
reliability
negative gradient vector
algorithm
nonlinear performance function
