A reliability modeling method for the system subject to common cause failures and competing failures

Competing failures are time domain contention situations between the propagated failures (PFs) that originate from dependent components and the failure isolation caused by the trigger component. The methods based on combinatorial analysis commonly used in the analysis of competing failures require a...

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Bibliographic Details
Published in:Quality and reliability engineering international 2022-07, Vol.38 (5), p.2533-2547
Main Authors: Zeng, Yining, Sun, Youchao
Format: Article
Language:English
Subjects:
Combinatorial analysis
common cause failure
Common cause failures
competing failure
Failure analysis
Flight control systems
generalized stochastic petri nets
Model reduction
Modelling
Petri nets
Reliability analysis
reliability modeling
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Summary:Competing failures are time domain contention situations between the propagated failures (PFs) that originate from dependent components and the failure isolation caused by the trigger component. The methods based on combinatorial analysis commonly used in the analysis of competing failures require a complicated formula derivation and model reduction process. This paper proposes an integrated model based on generalized stochastic Petri nets (GSPNs) for analyzing the competing failures in the system, and further considers the effect of common cause failures (CCFs). The proposed modeling method inherits the advantages of GSPNs and provides a simplified method to compute the reliability of systems, which affect by competing failures and CCFs. Finally, the proposed method is applied in the flight control system (FCS) and demonstrated by the efficient decomposition and aggregation (EDA) method and combinatorial analysis method.
ISSN:0748-8017
1099-1638
DOI:10.1002/qre.3089