基于可靠性分析的DSA200型受电弓检修参数优化研究  

Research on maintenance parameter optimization of DSA200 type pantograph based on reliability analysis

作　　者：毛永文 李勇[3] MAO Yongwen;LI Yong(School of Locomotive and Vehicle,Sichuan Railway College,Chengdu 611732,China;School of Information Science and Technology,University of Science and Technology of China,Hefei 230026,China;School of Mechatronic Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China)

机构地区：[1]四川铁道职业学院机车车辆学院,成都611732 [2]中国科学技术大学信息科学技术学院,合肥230026 [3]兰州交通大学机电工程学院,兰州730070

出　　处：《机械强度》2025年第2期103-110,共8页Journal of Mechanical Strength

基　　金：四川铁道职业学院2022年度校级科研项目(202212001)。

摘　　要：针对DSA200型受电弓预防维修存在欠维修或过维修问题,提出一种利用受电弓失效数据来优化检查维修参数的方法。首先,利用图参数法对受电弓部件失效数据进行分析,拟合失效时间分布模型,初步判定失效数据服从指数分布,进一步采用Bartlett值法,验证失效数据服从指数分布的有效性;其次,基于受电弓组成结构和工作特性,构建受电弓为各部件串联的可靠性框图模型,根据受电弓部件具有恒定失效率特征,得出受电弓失效率;再次,建立受电弓预防性维修和更换最小费用模型,得到受电弓最优预防性维修的间隔时间和最优备件数量;最后,利用故障树分析法,分析受电弓部件的结构重要度、概率重要度和关键重要度,得出受电弓故障概率及检查维修中重点关注的部件。优化后的受电弓检查维修参数能够为检修人员提升维修水平和降低维修成本提供科学参考。Aiming at the issues of under-maintenance or over-maintenance in preventive maintenance of DSA200 type pantograph,a method was proposed to optimize inspection and maintenance parameters by using pantograph failure data.Firstly,the failure datas of the pantograph components were analyzed by using graph parameter method,which failure time distribution models were fitted.The failure datas were preliminarily determined to obey the exponential distribution,and the Bartlett value method was further used to verify the validity of the failure data obey exponential distribution.Secondly,based on the structure and working characteristics of pantographs,a reliability block diagram model with pantograph components in series was constructed.According to the characteristics of constant failure rate of pantograph components,the failure rate of pantographs was obtained.Thirdly,the minimum cost model of preventive maintenance and replacement of pantographs was established,and the optimal preventive maintenance interval and the optimal number of spare parts were obtained.Finally,the structure importance,probability importance and critical importance of pantograph components were analyzed by using fault tree analysis method,and the failure probability of pantograph and the key components in inspection and maintenance were obtained.The optimized pantograph inspection and maintenance parameters can provide scientific reference for maintenance personnel to improve their maintenance level and reduce maintenance costs.

关 键 词：DSA200型受电弓 指数分布 检修间隔时间 备件数量 故障树分析法 

分 类 号：U264.34[机械工程—车辆工程]