6533b82dfe1ef96bd129126c

RESEARCH PRODUCT

TREEZZY2, a Fuzzy Logic Computer Code for Fault Tree and Event Tree Analyses

Maddalena CasamirraFrancesco CastigliaSalvatore Bellini

subject

Fault tree analysisEvent treeIncremental decision treeTree (data structure)Computer scienceEvent tree analysisFuzzy setProbability distributionData miningcomputer.software_genreFuzzy logiccomputerAlgorithm

description

In conventional approach to reliability analysis using logical trees methodologies, uncertainties in system components or basic events failure probabilities are approached by assuming probability distribution functions. However, data are often insufficient for statistical estimation, and therefore it is required to resort to approximate estimations. Moreover, complicate calculations are needed to propagate uncertainties up to the final results. In our work, in order to take account of the uncertainties in system failure probabilities, the methodology based on fuzzy sets theory is used both in fault tree and event tree analyses. This paper just presents our work in this issue, which resulted in a computer program named TREEZZY (TREE fuZZY).

yearjournalcountryeditionlanguage
2004-01-01
https://doi.org/10.1007/978-0-85729-410-4_572