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Article
Publication date: 1 September 2003

B.S. Dhillon and Fahri Kirmizi

This paper presents two mathematical models to perform probabilistic safety analysis in maintenance environment. Both models assume system operating in safe and unsafe…

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Abstract

This paper presents two mathematical models to perform probabilistic safety analysis in maintenance environment. Both models assume system operating in safe and unsafe environments. Model I represents a repairable system with three states: working normally, working in unsafe mode, and failed safely. Model II represents a repairable system with four states: working normally, working in unsafe mode due to human error, working in unsafe mode due to hardware failure, and failed safely. Equations for state probabilities, system availabilities, reliability, and mean time to failure are developed.

Details

Journal of Quality in Maintenance Engineering, vol. 9 no. 3
Type: Research Article
ISSN: 1355-2511

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