辽宁工程技术大学学报（自然科学版）2023，Vol.42Issue(6)：740-747,8.DOI:10.11956/j.issn.1008-0562.2023.06.014
强电流下弓网滑动电接触磨损特性分析和建模
Analysis and modeling of wear characteristics of pantograph-catenary sliding electrical contact under high current
摘要
Abstract
In order to solve the friction and wear problem of the sliding electric contact of the pantograph of electrified railway,the wear characteristics of the pantograph slide were studied by using the self-made sliding electric contact tester of the pantograph slide,and the variation law of the wear rate with the contact current,sliding speed,pressure fluctuation amplitude and fluctuation frequency was obtained.Based on this,the mathematical model expression of the wear rate is constructed through the study of the proportional relationship between no-current-carrying wear,pressure load fluctuation wear,total wear rate under current-carrying friction and wear rate under pure mechanical friction by using Archard wear model.The combination of general global optimization algorithm and McQuart algorithm is used to optimize the parameter identification of the wear rate model expression,and the accuracy of the wear rate model is proved.The qualitative analysis of the wear rate is transformed into the quantitative analysis of the wear rate,which has certain guiding significance for further research on the wear of the arch mesh system.关键词
弓网系统/摩擦磨损/Archard磨损模型/参数辨识Key words
pantograph-catenary system/friction and wear/Archard wear model/parameters identification分类
信息技术与安全科学引用本文复制引用
陈忠华,李纪臻,邢植良,王喜利,时光..强电流下弓网滑动电接触磨损特性分析和建模[J].辽宁工程技术大学学报（自然科学版）,2023,42(6):740-747,8.基金项目
辽宁省自然基金指导计划资助项目(2019-ZD-0034) （2019-ZD-0034）
