Please use this identifier to cite or link to this item: https://doi.org/10.1109/RAMS.2008.4925785
Title: Analysis of the performance of safety-critical systems with diagnosis and periodic inspection
Authors: Zhang, T.
Wang, Y.
Xie, M. 
Keywords: Availability
Failure on demand
Markov model
MTTF
Periodic inspection
Safety-critical system
Issue Date: 2008
Source: Zhang, T.,Wang, Y.,Xie, M. (2008). Analysis of the performance of safety-critical systems with diagnosis and periodic inspection. Proceedings - Annual Reliability and Maintainability Symposium : -. ScholarBank@NUS Repository. https://doi.org/10.1109/RAMS.2008.4925785
Abstract: This paper presents a method for analysis of performance indexes of safety-critical systems. It incorporates periodic inspection and repair which occurs just after each time interval into Markov model. This modeling technique is applied to the typical system structures regulated in the standard IEC 61508. Both perfect and imperfect inspections and repairs can be modeled. Through derivation, a variety of important system performance indexes can be obtained in closed form, that include MTTF, MTTFD, MTTFS, average availability, average probability of failure-dangerous, and average probability of failure on demand. The solutions are applied to 1-out-of-2 system structure to illustrate the usefulness of this method in analyzing the system performance, for example, choice of proof-test interval and evaluation on the average probability of failure on demand. © 2008 IEEE.
Source Title: Proceedings - Annual Reliability and Maintainability Symposium
URI: http://scholarbank.nus.edu.sg/handle/10635/87320
ISBN: 142441461X
ISSN: 0149144X
DOI: 10.1109/RAMS.2008.4925785
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