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BDD Based Fault Tree Analysis in Brief (CROSBI ID 678125)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Banov, Reni ; Šimić, Zdenko ; Šterc, Davor BDD Based Fault Tree Analysis in Brief // Proceedings of the 12th International Conference of the Croatian Nuclear Society. 2018

Podaci o odgovornosti

Banov, Reni ; Šimić, Zdenko ; Šterc, Davor

engleski

BDD Based Fault Tree Analysis in Brief

The application of probabilistic techniques for the analysis of complex systems enhances the development of various analysis methods based on the structure of complex systems. The system structure functions play an important role in the description of the behaviour of the respective working system. The popular Fault Tree (FT) models are used to describe states under which the system goes to failed conditions. The analysis of FT models by means of conventional methods relies on the knowledge of a combination of basic events leading the system into that state. For complex systems within nuclear power plants finding all such combinations may be an intractable task, eventually leading to the application of approximate methods on a truncated set of combinations. Recently, the Binary Decision Diagrams (BDD) have become a popular structure for the implicit representation of a full set of combinations based on logical functions. In this paper we present a brief overview of the reliability and sensitivity analysis of FT models based on BDDs. The connection between the system structure functions and the BDDs is explained herein, justifying the application of the BDDs to the FT analysis. Algorithms have been explained in view of how to build the BDD structure from existing FT models and how to apply it in the calculation of top level probabilities, conditional probabilities and Importance Factors. Further to this, the paper brings a comparison of the BDD with conventional methods, highlighting the advantages of that approach. At the end, open problems in the BDD application have been listed, suggesting possible areas for further improvements and research.

Probabilistic Reliability Analysis, Fault Tree Analysis, Binary Decision Diagrams, Reliability analysis

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Podaci o prilogu

105

2018.

objavljeno

Podaci o matičnoj publikaciji

Proceedings of the 12th International Conference of the Croatian Nuclear Society

Podaci o skupu

12th International Conference of the Croatian Nuclear Society

poster

03.07.2018-06.07.2018

Zadar, Hrvatska

Povezanost rada

Elektrotehnika