Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ejor.2004.06.022
Title: Evaluation of time-varying availability in multi-echelon spare parts systems with passivation
Authors: Lau, H.C. 
Song, H. 
See, C.T.
Cheng, S.Y.
Keywords: Inventory
Maintenance
Multi-echelon
Passivation
Issue Date: 2005
Source: Lau, H.C., Song, H., See, C.T., Cheng, S.Y. (2005). Evaluation of time-varying availability in multi-echelon spare parts systems with passivation. European Journal of Operational Research 170 (1) : 91-105. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ejor.2004.06.022
Abstract: The popular models for repairable item inventory, both in the literature as well as practical applications, assume that the demands for items are independent of the number of working systems. However this assumption can introduce a serious underestimation of availability when the number of working systems is small, the failure rate is high or the repair time is long. In this paper, we study a multi-echelon repairable item inventory system under the phenomenon of passivation, i.e. serviceable items are passivated ("switched off") upon system failure. This work is motivated by corrective maintenance of high-cost technical equipment in the miltary. We propose an efficient approximation model to compute time-varying availability. Experiments show that our analytical model agrees well with Monte Carlo simulation. © 2004 Elsevier B.V. All rights reserved.
Source Title: European Journal of Operational Research
URI: http://scholarbank.nus.edu.sg/handle/10635/39107
ISSN: 03772217
DOI: 10.1016/j.ejor.2004.06.022
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