并计算了与防水煤柱有关的可靠度指标、失效概率和安全系数。
This paper calculates reliability index, lose efficacy probability and safety coefficient corresponding to the width of different barrier pillar.
优化后的拱形头盖体积与优化前相比减小了34.7%，失效概率仅为0.007 2%，达到了开启便捷且安全可靠的设计目的。
By optimization, the volume decreases by 34.7% with a failure probability only 0.007 2%, it can be operated easily and safely.
本文结合失效模式和效果分析FMEA方法，提出一种基于概率影响图的软件体系结构安全性风险分析方法。
Combining with failure mode and effect analysis (FMEA), a method of safety risk analysis for software architecture on the basis of probabilistic influence diagram is proposed in the thesis.
再次，在已有的可靠度计算方法的基础上，给出了单元工作在安全、中介和失效三种情况下，其工作概率的计算方法和步骤。
Thirdly, calculation method and step for the probability of the element in safety state, intermediate state and failure state are given which is based on the general reliability analysis.
针对失效状态和安全状态具有模糊性的模糊可靠性分析问题，提出了一种模糊失效概率计算的矩方法。
For fuzzy reliability analysis with fuzzy failure state and fuzzy safety state, a moment method is proposed to calculate fuzzy failure probability.
二是使用适当的可靠性分析方法计算结构的失效概率和可靠性指标等，作为船体结构总纵强度的安全衡量指标。
The second one is to calculate structure invalidation probability and reliability index to evaluate overall longitudinal strength of hull.
针对失效状态和安全状态具有模糊性的广义可靠性分析问题，提出了一种广义失效概率计算的矩方法。
For general reliability analysis with fuzzy failure state and fuzzy safety state, moment method is proposed to calculate general failure probability.
首先介绍了安全仪表系统在实际应用中的需求以及安全仪表系统的硬件失效概率评估的必要性。
Firstly, this paper brings out the requirement of the Safety Instrument System in practical application and introduces the necessity of the PFD evaluation for SIS.
提出了安全与失效状态含有模糊信息时，广义失效概率计算的数值模拟，及相应的方差估算，并提出了对应的数值积分方法。
A general failure probability simulation and deviation evaluation methods were presented for fuzzy safety state and fuzzy failure state.
对硬件安全完整性等级的审核分别采用了结构限制的定性分析法和要求时平均失效概率的定量分析法。
Studying on the auditing methods of the safety integrity of hardware and software, the method of "Proven in Use" and the testing method of electromagnetic stamina.
对硬件安全完整性等级的审核分别采用了结构限制的定性分析法和要求时平均失效概率的定量分析法。
Studying on the auditing methods of the safety integrity of hardware and software, the method of "Proven in Use" and the testing method of electromagnetic stamina.
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