Dynamic fault tree analysis based on the structure function

Guillaume Merle · Jean-Jacques Lesage

22 citations0/0 files storedAnnual Reliability and Maintainability Symposium (RAMS)

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Risk and Safety Analysis Reliability and Maintenance Optimization Engineering and Test Systems

Abstract

This paper presents an algebraic approach allowing to perform the analysis of any Dynamic Fault Tree (DFT). This approach is based on the ability to formally express the structure function of DFTs. We first present the algebraic framework that we introduced to model dynamic gates and hence be able to determine the structure function of DFTs. Then, we show that this structure function can be rewritten under a canonical form from which the qualitative analysis of DFTs can be performed directly. We finally provide a probabilistic model of dynamic gates to be able to perform the quantitative analysis of DFTs from their structure function.

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References

1981Reliability engineering and risk assessment 2000Developing a low-cost high-quality software tool for dynamic fault-tree analysis 2010Probabilistic Algebraic Analysis of Fault Trees With Priority Dynamic Gates and Repeated Events 2002Fault trees and sequence dependencies 2004Minimal cut set/sequence generation for dynamic fault trees 1976On the Quantitative Analysis of Priority-AND Failure Logic 2004Parametric fault trees with dynamic gates and repair boxes 2010Algebraic modelling of Dynamic Fault Trees, contribution to qualitative and quantitative analysis

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