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http://dx.doi.org/10.14248/JKOSSE.2016.13.1.079

A Study on the Repair Parts Inventory Cost Estimation and V-METRIC Application for PBL Contract  

Kim, Yoon Hwa (Dept. of Industrial & Systems Engineering, Changwon National University)
Lee, Sung Yong (Dept. of Industrial & Systems Engineering, Changwon National University)
Publication Information
Journal of the Korean Society of Systems Engineering / v.13, no.1, 2017 , pp. 79-88 More about this Journal
Abstract
For the PBL contract, it is necessary for the contracting parties to share information regarding the reasonable inventory-level and the cost of its repair parts for the estimated demand. There are various models which can be used for this purpose. Among them, V-METRIC model is considered to be the most efficient and is most frequently applied. However, this model is usually used for optimizing the inventory level of the repair parts of the system under operation. The model uses a time series forecast model to determine the demand rate, which is a mandatory input factor for the model, based on past field data. However, since the system at the deployment stage has no operational performance record, it is necessary to find another alternative to be used as the demand rate of the model application. This research applies the V-METRIC model to find the optimal inventory level and cost estimation for repairable items to meet the target operational availability, which is a key performance indicator, at the time of the PBL contract for the deployment system. This study uses the calculated value based on the allocated MTBF to the system as the demand rate, which is used as input data for the model. Also, we would like to examine changes in inventory level and cost according to the changes in target operational availability and MTBF allocation.
Keywords
PBL; Repairable Item; Optimum Inventory Level; Inventory Cost; Availability; MTBF; Multi-Echelon; Multi-Indenture; V-METRIC;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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