TY - JOUR
T1 - Imperfect Preventive Maintenance Policies with Unpunctual Execution
AU - Wang, Xiaolin
AU - Zhou, Hang
AU - Parlikad, Ajith Kumar
AU - Xie, Min
N1 - Funding Information:
Manuscript received September 23, 2019; revised February 12, 2020; accepted March 22, 2020. Date of publication April 16, 2020; date of current version November 30, 2020. This work was supported in part by the National Natural Science Foundation of China under Grant 71532008 and Grant 71971181, in part by the Research Grants Council of Hong Kong under a Theme-Based Research Fund under Grant T32-101/15-R, and in part by the General Research Fund under Grant CityU 11203519. Associate Editor: Ming Jian Zuo. (Corresponding author: Xiaolin Wang.) Xiaolin Wang and Min Xie are with the Department of Systems Engineering and Engineering Management, City University of Hong Kong, Kowloon, Hong Kong, SAR, and also with the City University of Hong Kong Shenzhen Research Institute, Shenzhen, China (e-mail: [email protected]; [email protected]).
Funding Information:
Mr. Wang was a recipient of the prestigious Hong Kong PhD Fellowship from the Hong Kong Research Grants Council in 2017.
Publisher Copyright:
© 1963-2012 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/12
Y1 - 2020/12
N2 - Traditional maintenance planning problems usually presume that preventive maintenance (PM) policies will be executed exactly as planned. In reality, however, maintainers often deviate from the intended PM policy, resulting in unpunctual PM executions that may reduce maintenance effectiveness. This article studies two imperfect PM policies with unpunctual executions for infinite and finite planning horizons, respectively. Under the former policy, imperfect PM actions are periodically performed and the system is preventively replaced at the last PM instant. The objective is to determine the optimal number of PM actions and associated PM interval so as to minimize the long-run average cost rate. However, the latter policy specifies that a system is subject to periodic PM activities within a finite planning horizon and there is no PM activity at the end of the horizon. The aim is then to identify the optimal number of PM activities to minimize the expected total maintenance cost. In this article, we discuss the modeling and optimization of the two unpunctual PM policies and then explore the impact of unpunctual executions on the optimal PM decisions and corresponding maintenance expenses in an analytical or numerical way. The resulting insights are helpful for practitioners to adjust their PM plans when unpunctual executions are anticipated.
AB - Traditional maintenance planning problems usually presume that preventive maintenance (PM) policies will be executed exactly as planned. In reality, however, maintainers often deviate from the intended PM policy, resulting in unpunctual PM executions that may reduce maintenance effectiveness. This article studies two imperfect PM policies with unpunctual executions for infinite and finite planning horizons, respectively. Under the former policy, imperfect PM actions are periodically performed and the system is preventively replaced at the last PM instant. The objective is to determine the optimal number of PM actions and associated PM interval so as to minimize the long-run average cost rate. However, the latter policy specifies that a system is subject to periodic PM activities within a finite planning horizon and there is no PM activity at the end of the horizon. The aim is then to identify the optimal number of PM activities to minimize the expected total maintenance cost. In this article, we discuss the modeling and optimization of the two unpunctual PM policies and then explore the impact of unpunctual executions on the optimal PM decisions and corresponding maintenance expenses in an analytical or numerical way. The resulting insights are helpful for practitioners to adjust their PM plans when unpunctual executions are anticipated.
KW - Finite horizon
KW - hazard rate adjustment
KW - imperfect preventive maintenance (PM)
KW - infinite horizon
KW - unpunctual execution
UR - http://www.scopus.com/inward/record.url?scp=85086988824&partnerID=8YFLogxK
U2 - 10.1109/TR.2020.2983415
DO - 10.1109/TR.2020.2983415
M3 - Journal article
AN - SCOPUS:85086988824
SN - 0018-9529
VL - 69
SP - 1480
EP - 1492
JO - IEEE Transactions on Reliability
JF - IEEE Transactions on Reliability
IS - 4
M1 - 9069302
ER -