The method overcomes the defects of the current methods and can be used to find the structural reliability index and the design checking point.
该方法克服了传统方法的缺陷，可算出可靠度指标及设计验算点。
An efficient and practical stochastic gradient algorithm for calculating structural reliability index is presented in this paper on basis of geometrical principle of reliability index.
提出了一种基于几何原理求解结构可靠指标的高效实用算法，即随机梯度算法。
Based on the physical meanings of structural reliability index, the optimization model of flood discharging risk is established in this paper, and the global PSO is introduced to solve the model.
基于结构可靠度指标的物理含义，建立了水库泄洪风险计算优化模型，并引进了粒子群全局优化算法对该模型进行求解。
Finally, reliability index of the approximation is evaluated by geometric method in structural reliability analysis.
最后用结构可靠度分析中的几何法来计算可靠度指标。
It is suggested that the reliability index of each individual mechanism be calculated in generalized stochastic space, and then structural system reliability be calculated in terms of PNET.
采用在广义随机空间内计算各机构可靠指标，然后利用PNET法计算结构体系可靠度，计算简便，精度也满足要求。
A new decision-making index is defined considering the concept of structural reliability, and all alternatives are to be ranked according to the decision-making index.
参照结构可靠度的概念定义了一种新的决策指数，并按决策指数的大小进行方案的排序。
Based on the generalized reliability index given by Ditlevsen and the first order second moment method, a simplifed calculating method on structural reliability is presented.
基于由Ditlevsen给出的广义可靠指标和一次二阶矩法，提出了一个简捷的结构可靠度计算方法。
Based on the generalized reliability index given by Ditlevsen and the first order second moment method, a simplifed calculating method on structural reliability is presented.
基于由Ditlevsen给出的广义可靠指标和一次二阶矩法，提出了一个简捷的结构可靠度计算方法。
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