Multi-state reliability assessment for hydraulic lifting system based on the theory of dynamic Bayesian networks

Chun Su, Ning Lin and Yequn Fu

Journal of Risk and Reliability, 2016, vol. 230, issue 6, 533-544

Abstract: Mechanical systems and their components usually have multiple failure modes and different performance states. Most existing system reliability modelling theories are developed on the basis of binary logic, which lack sufficient ability to describe the above phenomena. In this article, dynamic Bayesian network theory is employed to evaluate the multi-state reliability of a hydraulic lifting system. First, failure mode and effect analysis and structural analysis and design technique are comprehensively applied to analyse the functionalities and failure modes of the components. Afterwards, the time factor is integrated into the model by considering the state transition of the components. In this way, the multi-state reliability model of the system is established by dynamic Bayesian network. The reliability assessment and diagnostic analysis are performed by taking advantage of the dynamic Bayesian network’s bi-directional reasoning ability, and the results are in good agreement with actual situation. It shows that the proposed approach is effective and convenient for multi-state reliability modelling and analysis for mechanical systems.

Keywords: Multi-state reliability; structural analysis and design technique; failure mode and effect analysis; dynamic Bayesian network; hydraulic lifting system (search for similar items in EconPapers)
Date: 2016
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Persistent link: https://EconPapers.repec.org/RePEc:sae:risrel:v:230:y:2016:i:6:p:533-544

DOI: 10.1177/1748006X16660488

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