Publisher : The Korea Academia-Industrial cooperation Society
DOI : 10.5762/KAIS.2016.17.1.274
Title & Authors
The Usefulness of Hard Time Task for Weapon System in Considering Shape Parameter of Weibull Life Time Distribution and Maintenance Cost Kim, Mansoo; Ji, Woong Ki;
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.
Hard Time Task;Maintenance Cost;Preventive Maintenance;Weibull Distribution;
KORAIL, A Study on Maintenance System Change in the Device on Vehicle-based, KORAIL R&D Institute, 2010
John Moubray, "Reliability-centered Maintenance", p. 12-13, Industrial Press Inc., 1997.
MIL-STD-2173, "Reliability-centered maintenance requirements for NAVAL aircraft, weapons systems and support equipment", p25-26, 66, Department of Defense, 1986.
Timothy M. Allen, "U.S. Navy Analysis of Submarine Maintenance Data and the Development of Age and Reliability Profiles", p.3, Department of the Navy.
NAVAIR 00-25-403, "Guidelines for the Naval Aviation Reliability-Centered Maintenance Process", p.B-7, Naval Air System Command, 2005.
Bloch, Heinz P. and Fred K. Geitner, "Practical Machinery Management for Process Plants, Volume 2: Machinery Failure Analysis and Troubleshooting, 2nd Edition", p.Appendix A, Gulf Publishing Company, 1994.