基于优先权与双可变时间窗的大型热轧生产线机会维护建模  

Opportunistic Maintenance Modeling of Large-Scale Hot Rolling Production Line Based on Maintenance Priority and Dual Variable Time Window

作　　者：毛雯欣 周晓军[1] MAO Wenxin;ZHOU Xiaojun(School of Mechanical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《上海交通大学学报》2024年第8期1221-1230,共10页Journal of Shanghai Jiaotong University

基　　金：国家重点研发计划(2020YFB1711103);国家自然科学基金(52075336)资助项目。

摘　　要：为解决大型热轧生产线日常动态维护和支撑辊定期更换带来的维护需求差异问题,综合考虑长距离条件下的维护资源及停机时间限制,引入维护优先权规则识别部件的组合维护判断次序,构建双可变时间窗规则辨别部件是否维护并区分维护需求,进而建立系统整体动态机会维护模型.实例分析表明,该模型可有效解决维护资源和停机时间限制下大型热轧生产线的差异化维护调度问题,且比传统基于时间窗的模型更具成本优势.To solve the problem of differential maintenance demand caused by daily dynamic maintenance and periodic replacement of support rolls in large-scale hot rolling lines,a maintenance priority rule is introduced to identify maintenance judgment order of components under long distance condition and downtime constraint.A dual variable time window rule is constructed to identify whether components should be maintained and distinguish maintenance demand,and then a dynamic opportunity maintenance model is established for the system.The case study shows that the model can effectively solve the problem of differential maintenance scheduling for large-scale hot rolling lines under the constraints of maintenance resources and downtime,and has more cost advantages than the traditional time-window-based model.

关 键 词：大型热轧生产线 机会维护 预防维护 维护优先权 可变时间窗 

分 类 号：TP207[自动化与计算机技术—检测技术与自动化装置]