Reliability and sensitivity analysis of a system with multiple unreliable service stations and standby switching failures

This paper presents the reliability and sensitivity analysis of a system with M primary units, W warm standby units, and R unreliable service stations where warm standby units switching to the primary state might fail. Failure times of primary and warm standby units are assumed to have exponential d...

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Published inPhysica A Vol. 380; pp. 455 - 469
Main Authors Ke, Jyh-Bin, Lee, Wen-Chiung, Wang, Kuo-Hsiung
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.07.2007
Subjects
Mean time to system failure
Reliability
Sensitivity analysis
Switching failure
Mean time to system failure
Sensitivity analysis
Switching failure
Reliability
Online AccessGet full text
ISSN0378-4371
1873-2119
DOI10.1016/j.physa.2007.02.095

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Abstract This paper presents the reliability and sensitivity analysis of a system with M primary units, W warm standby units, and R unreliable service stations where warm standby units switching to the primary state might fail. Failure times of primary and warm standby units are assumed to have exponential distributions, and service times of the failed units are exponentially distributed. In addition, breakdown times and repair times of the service stations also follow exponential distributions. Expressions for system reliability, R Y ( t ) , and mean time to system failure, MTTF are derived. Sensitivity analysis, relative sensitivity analysis of the system reliability and the mean time to failure, with respect to system parameters are also investigated.
AbstractList This paper presents the reliability and sensitivity analysis of a system with M primary units, W warm standby units, and R unreliable service stations where warm standby units switching to the primary state might fail. Failure times of primary and warm standby units are assumed to have exponential distributions, and service times of the failed units are exponentially distributed. In addition, breakdown times and repair times of the service stations also follow exponential distributions. Expressions for system reliability, R Y ( t ) , and mean time to system failure, MTTF are derived. Sensitivity analysis, relative sensitivity analysis of the system reliability and the mean time to failure, with respect to system parameters are also investigated.
Author Lee, Wen-Chiung
Ke, Jyh-Bin
Wang, Kuo-Hsiung
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Keywords Mean time to system failure
Sensitivity analysis
Switching failure
Reliability
Language English
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SubjectTerms Mean time to system failure
Reliability
Sensitivity analysis
Switching failure
Title Reliability and sensitivity analysis of a system with multiple unreliable service stations and standby switching failures
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