Abstract
This paper deals with fuzzy dynamic fault tree analysis for the electro-mechanical actuator with common-cause failures to provide fast fault location strategy. To fully describe the level of uncertainty of basic events, triangle fuzzy set is used. Temporal operators are defined, algebraic model is used to model and analyze dynamic fault tree of the electro-mechanical actuator and is general to all kind of life distribution. An innovative common-cause gate with incomplete common-cause under consideration is raised and it can also match the algebraic model analysis method. Fuzzy probability importance is computed by level-progressive strategy, and complexity of solving entirely is avoided and calculation time is reduced. The analysis result shows that the method is flexible and effectively done with the reliability analysis of electro-mechanical actuator and can provide suggestions for faults location.
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Yuyan, C., Ting, L., Jian, W. et al. Fuzzy dynamic fault tree analysis for electro-mechanical actuator based on algebraic model with common-cause failures. Aut. Control Comp. Sci. 50, 80–90 (2016). https://doi.org/10.3103/S0146411616020024
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DOI: https://doi.org/10.3103/S0146411616020024