Please use this identifier to cite or link to this item: https://doi.org/10.1002/qre.962
Title: A graphical approach for confidence limits of optimal preventive maintenance cycles
Authors: Halim, T. 
Tang, L.-C. 
Keywords: Confidence limits
Facilities maintenance
Opportunistic replacement
Optimal replacement interval
Preventive maintenance
Issue Date: Mar-2009
Source: Halim, T., Tang, L.-C. (2009-03). A graphical approach for confidence limits of optimal preventive maintenance cycles. Quality and Reliability Engineering International 25 (2) : 199-213. ScholarBank@NUS Repository. https://doi.org/10.1002/qre.962
Abstract: Facilities management (FM) is the management of infrastructure resources and services to support and sustain the operational strategy of an organization over time. Maintenance is often the business process that has not been optimized and is considered as a liability of business operations. Therefore, extensive studies have been done to determine the optimal replacement interval for irreparable parts of repairable systems where typically the time between failures is characterized by lifetime distribution in which the parameters are estimated from failure data. As a result, the optimal preventive maintenance (PM) interval computed is exposed to sampling risk as the repair cost and failure data used for estimation are typically highly censored due to issues related to data collection and unobserved failures. In this paper, we present a graphical approach to obtain the confidence interval for the optimal PM interval that resulted from sampling variations parameter estimates. The proposed methodology is applied in the context of FM as a strategy for opportunistic replacement and for the purpose of validating the cost components in maintenance. ©2008 John Wiley & Sons, Ltd.
Source Title: Quality and Reliability Engineering International
URI: http://scholarbank.nus.edu.sg/handle/10635/54230
ISSN: 07488017
DOI: 10.1002/qre.962
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