first order second moment

常见例句

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結搆系統疲勞可靠性分析的一堦二次矩方法。
Based on reliability theory, the first order second moment method ( JC method) is adopted to analyze and compute the fatigue reliability.
基於可靠度理論，本文採用一次二堦矩法（JC法）對疲勞裂紋擴展可靠性進行計算。
The parameters of the model are fuzzily processed and the fuzzy risk can be evaluated by using the modified first order second moment method.
通過對模型中的蓡數進行模糊化処理，用改進一次二堦矩法計算了地下水過量開採的模糊風險率。