CAJ | 학술논문

本文研究一个周期性订货的多设备同备件库存系统，将备件库存策略与设备状态监控相结合，讨论了存在设备状态监控情形下的备件库存策略。针对设备状态自然腐蚀过程和人为修复过程的复合过程，运用一个新的马尔科夫概率转移矩阵对设备需求概率进行刻画，并在此基础上给出静态订货模型和状态监控下的动态订货模型的最优订货策略。通过对比以上两种订货策略优缺点，本文提出一种新的启发式订货策略：基于关键状态的订货策略模型。该策略可以有效降低对全部设备实行动态监控的信息成本，且成本节省优于静态订货策略，对于企业的现实问题有着较好的指导意义。
본문연구일개주기성정화적다설비동비건고존계통，장비건고존책략여설비상태감공상결합，토론료존재설비상태감공정형하적비건고존책략。침대설비상태자연부식과정화인위수복과정적복합과정，운용일개신적마이과부개솔전이구진대설비수구개솔진행각화，병재차기출상급출정태정화모형화상태감공하적동태정화모형적최우정화책략。통과대비이상량충정화책략우결점，본문제출일충신적계발식정화책략：기우관건상태적정화책략모형。해책략가이유효강저대전부설비실행동태감공적신식성본，차성본절성우우정태정화책략，대우기업적현실문제유착교호적지도의의。
In this paper , we study the replenishment strategies faced by enterprise spare parts management .To draw close to the actual condition , we combine the spare parts inventory strategies with equipment state monito-ring by using a Markov process to model the probability of equipment ’ s requirement .We consider three models in this paper:a static base-stock inventory strategy;dynamic base-stock inventory strategy with state monitoring and dynamic base-stock inventory strategy based on key state monitoring .Our conclusions show that the first two models can change to a newsvendor problem in some situation and we can sovle them by some optimization meth-ods.Compared with the advantages and shortages of those two strategies , we provide a new heuristic strategy:dynamic base-stock inventory strategy based on key state monitoring .Results show that the shortage cost of dynamic ordering model under state monitoring is the lowest .But the new strategy can reduce the search cost to get all equipment ’ s state , and the new strategy is easier to use for companies .