This paper investigated the reliability characteristics of a controllable repair system with multiple imperfect coverage. The time-to-failure and the time-to-repair of the active and standby units are assumed to be exponentially distributed. When a unit fails, it may be immediately detected, located, and replaced by a standby unit with a coverage probability c. Reliability characteristics, such as the system reliability and the mean time to system failure (MTTF) were found. We studied the effects of different parameters on the system reliability and MTTF. We also performed sensitivity and relative sensitivity analysis of the reliability characteristics along with changes in the specific values of the system parameters.

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2014
ASTM International
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