Coupling Model: A Common-Cause-Failure Model with Consideration of Interpretation Uncertainties

2001 ◽  
Vol 136 (3) ◽  
pp. 255-260 ◽  
Author(s):  
Albert Kreuser ◽  
Jörg Peschke
Keyword(s):  
Coupling Model ◽  
Failure Model ◽  
Common Cause ◽  
Common Cause Failure

scholarly journals Feasibility Study of Developing Alternative Common-Cause Failure Model for Event Assessment

2021 ◽  
Author(s):  
Zhegang Ma ◽  
James Knudsen ◽  
John Schroeder ◽  
Curtis Smith
Keyword(s):  
Feasibility Study ◽  
Failure Model ◽  
Common Cause ◽  
Common Cause Failure

Common cause failure model updating for risk monitoring in nuclear power plants based on alpha factor model

2017 ◽  
Vol 231 (3) ◽  
pp. 209-220 ◽  
Author(s):  
Min Zhang ◽  
Zhijian Zhang ◽  
Ali Mosleh ◽  
Sijuan Chen
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Model Updating ◽  
Factor Model ◽  
Failure Model ◽  
Common Cause ◽  
Common Cause Failure ◽  
Risk Monitoring ◽  
Common Cause Failures ◽  
The Common

Common cause failure model updating (both qualitatively and quantitatively) is a key factor in risk monitoring for nuclear power plants when configuration changes (e.g. components become unavailable) occur among a redundant configuration. This research focuses on the common cause failure updating based on the alpha factor model method, which is commonly used in the living probabilistic safety assessment models for nuclear power plant risk monitoring. This article first discusses the common cause failure model updating in an ideal condition, which evaluates the common cause failure model parameters for the configurationally changed system in different ways, based on the causes of the detected failures. Then, two alternative updating processes are proposed considering the difficulty to identify failure causes immediately during plant operation: one is to update the common cause failure models with the assumption that the failures detected are independent failures and the other is to update the common cause failure models with the parameters as expectations of the values for all possible failure causes. Finally, a case study is given to illustrate the common cause failure updating process and to compare these two alternative processes. The results show that (1) common cause failures can be reevaluated automatically by the methods proposed in this article and (2) the second process is more conservative and reasonable but with more data requirements compared with the first approach. Considering limitations in accessibility of the data, the first strategy is suggested currently. More future work on data acquisition is demanded for better assessment of common cause failures during nuclear power plant risk monitoring.

A common cause failure model for components under age-related degradation

2020 ◽  
Vol 195 ◽  
pp. 106699 ◽  
Author(s):  
Taotao Zhou ◽  
Enrique López Droguett ◽  
Mohammad Modarres
Keyword(s):  
Failure Model ◽  
Common Cause ◽  
Common Cause Failure ◽  
Age Related

Is mapping a part of common cause failure quantification?

Kerntechnik ◽  
2006 ◽  
Vol 71 (1-2) ◽  
pp. 41-49 ◽  
Author(s):  
J. K. Vaurio
Keyword(s):  
Common Cause ◽  
Common Cause Failure
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