The model is applicable to the reliability analysis and design of infinite life for propeller blades or other structural members with initial defects and accident damage.

该模型可用于含初始缺陷或意外损伤的螺旋桨叶无限寿命可靠性分析和设计，得到桨叶可靠度与初始裂纹尺寸之间的函数关系式。

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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。

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The uncertain parameters of structures were expressed by interval variables, and based on a non-probabilistic reliability model, two methods for structural reliability computation were produced.

将结构的不确定参数描述为区间变量，基于非概率可靠性模型研究结构可靠性的两种计算方法。

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