This research investigates a multi-state cold standby system that exists competition between degradation failure and catastrophic failure. Three maintenance stations in the hypothetical system can provide preventive maintenance and two different types of corrective maintenance. Preventive maintenance is performed when the online unit degrades within certain levels, The degradation type maintenance is performed when the online unit is completely degraded, and the catastrophic failure type maintenance is performed when catastrophic failure occurs. The Phase-type (PH) distribution method is used to describe the distribution of various time variables in the model. The external shocks is described by a PH-renewal process. A multi-state cold storage system reliability model considering degradation failure and catastrophic failure is established. Finally, the applicability of the model is verified by numerical applications, and the influence of the different preventive maintenance thresholds and the maintenance rates of the three types of maintenance on the system reliability measure are demonstrated.
CHEN Tong
,
XIE Jingwei
,
DI Peng
,
YIN Dongliang
. Reliability analysis of multi-state cold standby system with two competing failures[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2019
, 40(3)
: 222339
-222339
.
DOI: 10.7527/S1000-6893.2018.22339
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