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
毛雯欣 1周晓军1
作者信息
- 1. 上海交通大学机械与动力工程学院,上海 200240
- 折叠
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.
Abstract
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Key words
large-scale hot rolling line/opportunistic maintenance/preventive maintenance/maintenance priority/variable time window引用本文复制引用
基金项目
国家重点研发计划(2020YFB1711103)
国家自然科学基金(52075336)
出版年
2024
NETL
NSTL
万方数据