...应谱理论计算了长江上某拟建公路大桥在成桥状态的抖振响应,同时考虑静风、脉动风作用,利用一次二阶矩(First-Order Second-Moment,FORM)方法计算主梁跨中截面可靠度指标.
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First Order Second Moment 第一阶第二次矩 ; 一次二阶矩
First-order Second-moment Method 一次二阶矩法
first-order second moment 一次二阶矩
first-order second-moment theory 一次二阶矩理论
first order second moment theory 一次二阶矩
adapted first-order second-moment method 改进的一次二阶矩法
adapted first- order second-moment method 改进的一次二阶矩法
The first-order second-moment method is fundamental in structural reliability analysis, its accuracy depends upon the nonlinear extent of performance functions around checking point.
一次二阶矩方法是结构可靠度分析的基本方法．一次二阶矩方法的计算精度依赖于验算点附近功能函数的非线性程度。
The present usually reliability analysis method for engineering structures are Monte Carlo Simulate (MCS), First-order Second-moment method (FOSM) and reliability Surface method (RSM).
现有基本的结构可靠度计算方法可分为一次二阶矩法、蒙特卡罗法和响应面法。
A first order second moment formulation for systems fatigue reliability assessment of offshore structures is presented.
本文提出了海洋平台结构系统疲劳可靠性分析的一阶二次矩方法。
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