Analysis on Dynamic Fault Tree Based on Fuzzy Set

Li Ping Yang

doi:10.4028/www.scientific.net/AMM.110-116.2416

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 110-116Analysis on Dynamic Fault Tree Based on Fuzzy Set

Analysis on Dynamic Fault Tree Based on Fuzzy Set

Abstract:

In case of fault tree analysis of large complex system, the probability of bottom event in dynamic fault tree is uncertain in some cases. To address the problem, the paper presented a dynamic fault tree analysis method based on fuzzy set computation. The method separates logic attributes and timing attributes of dynamic logic gates. It can convert dynamic fault tree into static fault tree not considering timing constraints and obtain minimum cut set of static fuzzy fault tree with set operations, then the concept of minimum cut set is extended to dynamical minimum cut sequence. Thus, the dynamic fault tree was analyzed in both qualitative and quantitative aspects, which solve the problem that it is difficult to assign value of event probability in previously process.

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Periodical:

Applied Mechanics and Materials (Volumes 110-116)

Pages:

2416-2420

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.110-116.2416

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Online since:

October 2011

Authors:

Li Ping Yang

Keywords:

Dynamic Fault Tree, Fuzzy Set, Minimum Cut Sequence

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References

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