伴随修理中的维修任务调度策略  

Maintenance task scheduling heuristics in accompanying repair

作　　者：吕学志[1,2] 于永利[1] 张柳[1] 聂成龙[1] 刘俊杰[1] 

机构地区：[1]军械工程学院装备指挥与管理系,石家庄050003 [2]总参炮兵训练基地模拟训练中心,宣化075100

出　　处：《系统工程理论与实践》2013年第1期209-214,共6页Systems Engineering-Theory & Practice

摘　　要：伴随修理是一种重要的维修保障形式,合理地调度维修任务将提高伴随修理的效率,进而将提高作战单元的作战效能.应用离散事件仿真方法对伴随修理中的维修任务调度策略进行了研究.首先,对伴随修理及维修任务调度策略进行了探讨.其次,建立了装备作战单元伴随修理的仿真模型.最后,应用仿真模型对几种维修任务调度策略进行了仿真评估,并分别对平均故障间隔时间(MTBF)、任务持续时间、抢占资源、优先级更新方式的影响进行了分析.仿真结果表明,应尽可能允许重要维修任务抢占所需资源,调度过程中优先考虑重要的维修任务,在故障频繁的时候使用"改进的先到先服务(MFCFS)"策略,故障不频繁的时候使用"改进的最小处理时间(MSMPT)"策略,比较可靠的策略是"改进的预测最早完成时间(MEETOC)"策略.Accompanying repair is an important maintenance support form; optimally scheduling main- tenance task will improve the efficiency for accompanying repair, and increase the combat efficiency for combat unit. In the paper, maintenance task scheduling heuristics in accompanying repair were researched with discrete event sinmlation methods. First, accompanying repair and maintenance task scheduling heuristics were presented. Next, simulation model of accompanying repair for equipment minimal combat unit was established. At last, maintenance task scheduling heuristics were evaluated, and influential fac- tors, such as MTBF （mean time between fault）, mission duration, preemption, priority updating methods, were analyzed through the simulation model. The simulation results show that it is better to prioritize the important maintenance task and allow preemption; when maintenance task emerging rate is high ＂MFCFS （modified first come first serve）＂ is better; when maintenance task emerging rate is low the ＂MSMPT （modified shortest mean process time）＂ is better; and it is reliable of ＂MEETOC （modified estimated earliest time to complete）＂.

关 键 词：伴随修理 维修任务 调度策略 离散事件仿真 

分 类 号：E92[军事—军事装备学]