Availability analysis for periodically inspected systems subject to multiple failure modes. Issue 3 (3rd July 2019)

• Record Type: Journal Article
• Authors: Qiu, Qingan; Cui, Lirong
• Is Part Of: International journal of systems science. Volume 6:Issue 3(2019)
• Page Start: 258
• Page End: 271
• Publication Date: 2019-07-03
• Subjects: Availability analysis -- periodic inspections -- multiple failure modes -- renewal process; Operations research -- Periodicals; Logistics -- Periodicals; System analysis -- Periodicals; 003
• DOI: 10.1080/23302674.2017.1384961
• Languages: English
• ISSNs: 2330-2674

Abstract

ABSTRACT: The instantaneous availability and steady-state availability of a competing-risk system undergoing periodic inspections are studied in this paper. Specifically, a repairable system with a working state and M failure modes is considered. Each failure mode has a random failure time. When the system fails from the i th( i = 1, 2, ..., M ) failure mode, corresponding corrective repair (CR) is performed which takes a random time Yi ( i = 1, 2, ..., M ). Two maintenance models are formulated. At the time of inspection, if the system is working, then the system is restored to as good as new condition in Model 1 while no maintenance actions are taken in Model 2. Some analytical results on the instantaneous availability and the steady-state availability for the two models are derived. A numerical example for an Integrated Digital Communication System is presented to demonstrate the application of the developed approach.