Search results for "Safety-critical analysis"

showing 2 items of 2 documents

A combined multi-criteria approach to support FMECA analyses: A real-world case

2018

[EN] The paper proposes an approach that combines reliability analyses and multi-criteria decision methods to optimize maintenance activities of complex systems. A failure mode, effects, and criticality analysts (FMECA) is initially performed and the fuzzy TOPSIS (FTOPSIS) method is then applied to rank previously identified failure modes. For prioritization, failure modes are assessed against three evaluation criteria that differ from those traditionally involved in risk priority number (RPN) computation (i.e. severity, occurrence and detection). Two criteria refer to the maintenance management reflecting the operational time taken by the maintenance activity performed after the occurrence…

EngineeringSafety-critical analysisSafety-critical analysiAHP0211 other engineering and technologiesAnalytic hierarchy process02 engineering and technologyFault (power engineering)Industrial and Manufacturing EngineeringSettore ING-IND/17 - Impianti Industriali Meccanici0202 electrical engineering electronic engineering information engineeringFTOPSISSensitivity (control systems)Safety Risk Reliability and QualityReliability (statistics)021103 operations researchbusiness.industryRank (computer programming)Reliability engineeringFailure mode effects and criticality analysisRanking020201 artificial intelligence & image processingMATEMATICA APLICADAbusinessFailure mode and effects analysisFMECAReliability Engineering & System Safety
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The FTOPSIS method to support FMECA analyses

2016

This paper proposes an approach based on multi-criteria decisional methods to manage the results derived from reliability analyses. In detail, this paper proposes ranking the failure modes of a system when analyzed with failure modes, effects and criticality analysis (FMECA) using the technique for order preference by similarity to ideal solutions (TOPSIS). To better manage the uncertainty of evaluations made under the differing criteria, the TOPSIS method is applied in its fuzzy version (FTOPSIS). When the method is applied to a case study, the results highlight the main possible critical faults and supply fundamental information to take into account during the scheduling of maintenance ac…

Safety-critical analysis FMECA FTOPSIS AHP
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