摘要
为解决缺陷发生服从非齐次泊松过程和故障停机时间较长的问题,提出应用时间延迟理论对预防维修基本模型进行修正,并对设备预防维修间隔期进行优化决策。阐述了时间延迟概念及其维修理论,建立了复杂系统的基本预防维修模型。在此基础上,考虑到设备的故障停机时间较长、缺陷的发生服从非齐次泊松过程情况下合理的维修间隔期会产生相应变化,分别建立了预防维修修正模型I和修正模型II。通过案例研究,比较了预防维修基本模型与修正模型关于确定合理维修间隔期的不同结果。研究表明,修正模型计算出的维修间隔期具有更高的精度。
To deal with problems of how to use the theory of delay time to revise the basic Preventive Maintenance （PM） model and to optimize PM interval of equipment in the case of the Non-Homogeneous Poisson Process （NHPP） of defect arrivals and non-negligible failure downtime. Firstly, the concept of delay time and its maintenance theory were introduced. Then, a basic PM model for complex system was established. Secondly, amendatory model I and model II were established, which was based on the case that failure downtime was short compared to inspection cycle, and the case of NHPP of defect arrivals. Finally, a case study was provided to compare the differences of inspection cycle in basic PM model and the revised PM models. The revised downtime model was a more precise model with which to determine the optimal inspection interval.
出处
《计算机集成制造系统》
EI
CSCD
北大核心
2008年第8期1529-1532,共4页
Computer Integrated Manufacturing Systems
基金
国家自然科学基金资助项目(70301002)
上海市重点学科建设资助项目(T0502)~~
关键词
预防维修
设备
时间延迟
非齐次泊松过程
停机时间
缺陷发生率
preventive maintenance
equipment
delay time
non-homogeneous Poisson process
downtime
defect arrival rate
作者简介
吕文元（1971-），男，浙江永康人，上海理工大学管理学院副教授，博士，主要从事先进制造设备管理的研究。E-mail：wy_lu@sina．com。
