Explicit and implicit Valuation-Based System methods for the risk assessment of systems subject to common-cause failures under uncertainty
Explicit and implicit Valuation-Based System methods for the risk assessment of systems subject to common-cause failures under uncertainty
复制标题
用于对不确定性下发生共因故障的系统进行风险评估的显式和隐式基于评估的系统方法
DOI:
10.1016/j.knosys.2020.106665
复制
发表时间:
2021
影响因子:
8.8
通讯作者:
Ming Xinguo
中科院分区:
文献类型:
--
作者:
Qiu Siqi;Ming Xinguo
Multiple components within a system may fail or malfunction simultaneously due to a shared cause or common cause (CC). This kind of failure is referred to as a common-cause failure (CCF), and it contributes greatly to the system failure. Due to the insufficiency of relative data and system complexities, different kinds of uncertainties inevitably exist in real-world system modeling. This paper proposes explicit and implicit Valuation-Based System (VBS) methods to model systems subject to CCFs, and to evaluate the failure probability of such systems considering the parametric uncertainty related to state probabilities of components and the model uncertainty related to the system structure. Both methods are suitable to model systems subject to CCFs under different kinds of uncertainties, and allow the relationship among multiple CCs being s-independent, s-dependent or mutually exclusive. Finally, the proposed methods are applied to model hazardous material transportation accidents and to evaluate the occurrence probability of accidents using statistical data.
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DOI:
10.1016/j.ress.2012.12.003
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Reliab. Eng. Syst. Saf.
影响因子:
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通讯作者:
T. L. Duy;D. Vasseur
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