TY - JOUR
T1 - Non-periodic preventive maintenance with reliability thresholds for complex repairable systems
AU - Lin, Zu Liang
AU - Huang, Yeu Shiang
AU - Fang, Chih Chiang
N1 - Publisher Copyright:
© 2014 Elsevier Ltd.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2015/4
Y1 - 2015/4
N2 - In general, a non-periodic condition-based PM policy with different condition variables is often more effective than a periodic age-based policy for deteriorating complex repairable systems. In this study, system reliability is estimated and used as the condition variable, and three reliability-based PM models are then developed with consideration of different scenarios which can assist in evaluating the maintenance cost for each scenario. The proposed approach provides the optimal reliability thresholds and PM schedules in advance by which the system availability and quality can be ensured and the organizational resources can be well prepared and managed. The results of the sensitivity anlysis indicate that PM activities performed at a high reliability threshold can not only significantly improve the system availability but also efficiently extend the system lifetime, although such a PM strategy is more costly than that for a low reliabiltiy threshold. The optimal reliability threshold increases along with the number of PM activities to prevent future breakdowns caused by severe deterioration, and thus substantially reduces repair costs.
AB - In general, a non-periodic condition-based PM policy with different condition variables is often more effective than a periodic age-based policy for deteriorating complex repairable systems. In this study, system reliability is estimated and used as the condition variable, and three reliability-based PM models are then developed with consideration of different scenarios which can assist in evaluating the maintenance cost for each scenario. The proposed approach provides the optimal reliability thresholds and PM schedules in advance by which the system availability and quality can be ensured and the organizational resources can be well prepared and managed. The results of the sensitivity anlysis indicate that PM activities performed at a high reliability threshold can not only significantly improve the system availability but also efficiently extend the system lifetime, although such a PM strategy is more costly than that for a low reliabiltiy threshold. The optimal reliability threshold increases along with the number of PM activities to prevent future breakdowns caused by severe deterioration, and thus substantially reduces repair costs.
UR - http://www.scopus.com/inward/record.url?scp=84921353766&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84921353766&partnerID=8YFLogxK
U2 - 10.1016/j.ress.2014.12.010
DO - 10.1016/j.ress.2014.12.010
M3 - Article
AN - SCOPUS:84921353766
SN - 0951-8320
VL - 136
SP - 145
EP - 156
JO - Reliability Engineering and System Safety
JF - Reliability Engineering and System Safety
ER -