碳滑板非对称外形对高速受电弓气动阻力影响研究  

Numerical Study on Influence of Asymmetrical Carbon Contact Strip on Aerodynamic Drag of a Pantograph

作　　者：高广军[1,2,3,4] 向南燊 王岳宸 许澳 丁艳思 张洁[1,2,3,4] GAO Guangjun;XIANG Nanshen;WANG Yuechen;XU Ao;DING Yansi;ZAHNG Jie(State Key Laboratory of Heavy-duty and Express High-power Electric Locomotive,Central South University,Changsha,410075;School of Traffic&Transportation Engineering,Central South University,Changsha,410075;National&Local Joint Engineering Research Center of Safety Technology for Rail Vehicle,Central South University,Changsha 410075;Key Laboratory of Railway Industry of Aerodynamics,Central South University,Changsha 410075;National Engineering Technology and Research Center for System Integration of Railway Vehicle,CRRC Changchun Railway Vehicles Co.Ltd.,Changchun 130062)

机构地区：[1]中南大学重载快捷大功率电力机车全国重点实验室,长沙410075 [2]中南大学交通运输工程学院,长沙410075 [3]中南大学轨道交通列车安全保障技术国家地方联合工程研究中心,长沙410075 [4]中南大学空气动力学铁路行业重点实验室,长沙410075 [5]中车长春轨道客车股份有限公司国家轨道客车系统集成工程技术研究中心,长春130062

出　　处：《机械工程学报》2025年第6期206-216,共11页Journal of Mechanical Engineering

基　　金：国家重点研发计划课题(2020YFA0710903);国家铁路集团有限公司科技研究开发计划课题(K2021J004-B)资助项目。

摘　　要：以单个受电弓为基础,对受电弓碳滑板进行气动性能优化研究,建立五种不同计算模型,分析非对称碳滑板的气动力以及流场特性。研究结果表明,将碳滑板的迎风面与背风面优化成圆弧面可以优化滑板区域的流场结构,气流流过碳滑板后的减速效应减弱,使得碳滑板区域的气动阻力有所减小。仅将碳滑板背风面的圆弧弧度加大形成非对称滑板,碳滑板区域的气动减阻效果进一步增强。四种优化受电弓模型气动减阻率均达到12.0%以上,最优减阻率达到13.8%,其中碳滑板减阻率达到91.8%。列车整车气动减阻设计可以获得思路和数据支撑。Based on a single pantograph,the carbon contact strip of pantograph is optimized into five different models and their flow fields are analyzed.The results show that optimizing the windward and leeward sides of the carbon contact strip into a circular surface can optimize the flow field structure of the panhead area,and the deceleration effect of the airflow through the skateboard is greatly reduced,which reduces the aerodynamic drag of the carbon contact strip area.Only increasing the arc of the leeward side of the carbon contact strip can also optimize the aerodynamic drag of the carbon contact strip area.The aerodynamic drag optimization rate of all four optimized pantograph models reaches more than 12%,and the drag of modelⅣreduces 13.84%,and the drag reduction rate of the carbon contact strip reaches 91.82%.Aerodynamic drag reduction design of new high-speed trains can receive references and data support.

关 键 词：受电弓 碳滑板 减阻 流场结构 

分 类 号：U270.11[机械工程—车辆工程] U264.34[交通运输工程—载运工具运用工程]