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    Applications of Bayesian networks and Petri nets in safety, reliability, and risk assessments: A review

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    Kabir_S_Accepted_Manuscript.pdf (586.9Kb)
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    Publication date
    2019-06
    Author
    Kabir, Sohag
    Papadopoulos, Y.
    Keyword
    Bayesian networks
    Petri nets
    Reliability analysis
    Risk assessment
    Safety analysis
    Rights
    © 2019 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    System safety, reliability and risk analysis are important tasks that are performed throughout the system lifecycle to ensure the dependability of safety-critical systems. Probabilistic risk assessment (PRA) approaches are comprehensive, structured and logical methods widely used for this purpose. PRA approaches include, but not limited to, Fault Tree Analysis (FTA), Failure Mode and Effects Analysis (FMEA), and Event Tree Analysis (ETA). Growing complexity of modern systems and their capability of behaving dynamically make it challenging for classical PRA techniques to analyse such systems accurately. For a comprehensive and accurate analysis of complex systems, different characteristics such as functional dependencies among components, temporal behaviour of systems, multiple failure modes/states for components/systems, and uncertainty in system behaviour and failure data are needed to be considered. Unfortunately, classical approaches are not capable of accounting for these aspects. Bayesian networks (BNs) have gained popularity in risk assessment applications due to their flexible structure and capability of incorporating most of the above mentioned aspects during analysis. Furthermore, BNs have the ability to perform diagnostic analysis. Petri Nets are another formal graphical and mathematical tool capable of modelling and analysing dynamic behaviour of systems. They are also increasingly used for system safety, reliability and risk evaluation. This paper presents a review of the applications of Bayesian networks and Petri nets in system safety, reliability and risk assessments. The review highlights the potential usefulness of the BN and PN based approaches over other classical approaches, and relative strengths and weaknesses in different practical application scenarios.
    URI
    http://hdl.handle.net/10454/17427
    Version
    Accepted manuscript
    Citation
    Kabir S and Papadopoulos Y (2019) Applications of Bayesian networks and Petri nets in safety, reliability, and risk assessments: A review. Safety Science. 115: 154-175.
    Link to publisher’s version
    https://doi.org/10.1016/j.ssci.2019.02.009
    Type
    Article
    Collections
    Engineering and Informatics Publications

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