Availability analysis for general repairable systems with repair time threshold

Qingan Qiu and Lirong Cui

Communications in Statistics - Theory and Methods, 2019, vol. 48, issue 3, 628-647

Abstract: Availability analysis is an important issue in many practical fields. This paper investigates the availability for general repairable systems with repair time threshold. Based on practical applications, a repair time threshold is introduced. If the period of a repair is less than a predefined time threshold, then the system may be considered as working during this period, i.e., the effect of the repair could be neglected. Otherwise, if the period of a repair is longer than the given threshold, then the system is considered as working from the beginning of the system failure until the repair time exceeding the threshold, i.e., the time point of the system down could be delayed. We consider both constant and random repair time threshold. This paper valuates the user-perceived availability, when the user does not experience any service interruption because the duration of repair is too short. The results can be applied in reliability engineering, queueing theory and many other fields. A numerical example for ventilator system is presented to demonstrate the application of the developed approach.

Date: 2019
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Citations: View citations in EconPapers (4)

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DOI: 10.1080/03610926.2017.1417430

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