A Study of Initial Spare Parts Inventory Strategies Based on Availability－ A Simulation Analysis of X Weapon System

• Main Authors: Mei-Feng Cheng, 鄭梅峰
• Other Authors: 朱艷芳
• Format: Others
• Language: zh-TW
• Published: 2003
• Online Access: http://ndltd.ncl.edu.tw/handle/70655661355312390328

碩士 === 國防管理學院 === 資源管理研究所 === 91 === Spare parts management is one of most important duties for military logistic departments who charge the availability of weapon systems. Because of the insufficiency of spare parts could result in failed equipment and fighting, but excessive stock of spare parts may lead to the high holding cost. So the difficulty of the job is that the manager must provide sufficient spare parts to ensure the availability of weapon systems under restricted budget. This paper is based on operational availability and has been considered Major levels of Maintenance, Reliability, Failure rate and Multi-indenture. We construct a simplified model by simulation approach with SIMSCRIPT II.5 and figure out the mean logistics delay time (MLDT), mean time to repair (MTTR) and mean time between failure (MTBF) by sensitivity analysis of inventory strategies, lead time and maintenance resources variation under the case of X weapon system. Finally, we get some conclusions as following：（1）(S-1, S) inventory strategy is more suitable than (s, S) strategy for advancing the availability of weapon system.（2）It is little effect if you want to enhance availability only by increasing the stock of spare parts and not adjusting the inventory strategy, lead time or maintenance mechanism.