基于可靠度的高铁制动机周期预防维修优化研究  

Periodic preventive maintenance optimization and a model for high-speed rail brake based on the limitation of reliability

作　　者：董航宇 刘勤明[1] 叶春明[1] 刘文溢 DONG Hangyu;LIU Qinming;YE Chunming;LIU Wenyi(Business School,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学管理学院,上海200093

出　　处：《上海理工大学学报》2020年第4期384-389,共6页Journal of University of Shanghai For Science and Technology

基　　金：国家自然科学基金资助项目(71471116,71271138);教育部人文社会科学研究青年基金资助项目(15YJCZH096)。

摘　　要：针对高铁制动机维修难、维修成本高等问题,建立了周期性预防维修优化模型。首先,基于可靠性理论,以最低成本为目标函数,引入改善因子来描述故障率演化规则;其次,以故障率服从威布尔分布为例,并用Matlab工具进行求解,求得设备最佳预防性维修次数,以及可靠度与成本、可靠度与改善因子间的关系;最终通过算法编程得出的结果验证了该模型在实际中的有效性。Aiming at the problems of high-speed rail brake,such as difficult maintenance and high maintenance cost,an optimization model for periodic preventive maintenance was established.Based on the reliability theory,an improvement factor was introduced to describe the fault rate evolution rule with the lowest cost as an objective function.Taking the failure rate obeying Weibull distribution as an example,the optimal preventive maintenance times of equipments and the relationships between reliability and cost,reliability and improvement factors were obtained by solving the problem with the Matlab instrument.The validity of the model was verified by an example.

关 键 词：预防性维修 可靠度 威布尔分布 改善因子 故障率 

分 类 号：F253.7[经济管理—国民经济]