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http://dx.doi.org/10.5762/KAIS.2016.17.1.274

The Usefulness of Hard Time Task for Weapon System in Considering Shape Parameter of Weibull Life Time Distribution and Maintenance Cost  

Kim, Mansoo (ILS(Integrated Logistics Support) R&D Lab, LIG Nex1)
Ji, Woong Ki (ILS(Integrated Logistics Support) R&D Lab, LIG Nex1)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.17, no.1, 2016 , pp. 274-283 More about this Journal
Abstract
The study of maintenance planning is important in military weapon systems because it can improve their availability and reduce the operational and maintenance cost during the total life cycle. In maintenance planning, it is important to determine the preventive maintenance task and its optimal interval. This paper focuses on the hard time task, which is one of the preventive maintenance tasks. A hard time task removes an item or restorative action before some specified maximum age limit to prevent functional failure. The Monte-Carlo simulation model was proposed to help understand the cost effectiveness of a hard time task. In the simulation, various shape parameters of the Weibull distribution and cost ratio of corrective maintenance to preventive maintenance were assumed. Using a Monte-Carlo simulation, a quantified cost saving effect and optimal preventive maintenance interval were suggested.
Keywords
Hard Time Task; Maintenance Cost; Preventive Maintenance; Weibull Distribution;
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