质量与可靠性集成的变工况串行系统维护建模  

Maintenance modeling on integration of quality and reliability for serial systems with variable working conditions

作　　者：禄智鸿 周晓军[1] LU Zhihong;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：《计算机集成制造系统》2022年第4期1030-1041,共12页Computer Integrated Manufacturing Systems

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

摘　　要：针对变工况下的串行多工序制造系统,引入融合历史工况的设备故障率衔接机制,构建变工况设备的改进型比例故障率模型,进而通过综合考虑设备衰退对产品质量的影响机制,以有效开动时间为核心建立集成质量与可靠性的变工况设备维护模型。在此基础上,结合多品种小批量生产下工况变动近期确定而远期模糊的特性,建立一种基于动静结合型时间窗的制造系统机会维护模型。算例分析结果表明,相对于现有的静态时间窗策略,动静结合型时间窗更适用于变工况制造环境,且在工况大幅变动时更具优势。Aiming at the serial multi-stage manufacturing systems under variable working conditions,the evolution mechanism of equipment hazard rate was proposed by considering historical working conditions,which was followed by an improved proportional hazard model for equipment under variable working conditions.Besides,a valid-time-centered equipment maintenance model was built to integrate product quality and equipment reliability on the basis of impact mechanism of equipment degradation on product quality.Based on semi-dynamic time windows,a system opportunity maintenance strategy was proposed to take the influence of short-term certain working conditions on equipment degradation into account while the long-term working conditions were fuzzy.The illustrative example showed that compared with traditional static time window,semi-dynamic time window was more suitable for the serial multi-station manufacturing system under variable working condition,and it had more advantages with great changing of working condition.

关 键 词：串行多工序制造系统 质量 可靠性 预防维护 变工况 维护时间窗 

分 类 号：TP16[自动化与计算机技术—控制理论与控制工程]