advanced first-order second-moment method

基本解释

Adopted first-order second-moment method, advanced branch-and-bound method and PNET method are used to do reliability analysis for the structure system.
并用改进的一次二阶矩法、分枝限界法、PNET法对该结构系统进行结构可靠性分析。
The level of environmental risk can be transformed into ordinary probabilistic environmental risk and computed using advanced first-order second-moment method.
最后，将具有灰色概率形式的环境风险度转化成一般的系统失效风险率，进而用改进一阶二矩法进行计算。
The mean-value-first-order-second-moment method and advanced first-order-second-moment method are used to analyze the aseismatic serviceability of water supply network.
借鉴结构可靠度分析方法，给出了供水管网抗震功能可靠度分析的一次二阶矩方法。