开/闭口运行对高速受电弓气动噪声特性影响的风洞试验研究  

Wind tunnel test study on influence of open/close operation on aerodynamic noise characteristics of high-speed pantographs

作　　者：李波 黄思俊 靳铠龙 杨小雨 马亚民 姚华栋 牛纪强 LI Bo;HUANG Sijun;JIN Kailong;YANG Xiaoyu;MA Yamin;YAO Huadong;NIU Jiqiang(Beijing CRRC CED Railway Electric Technology Co.Ltd.,Beijing 100176,China;Tangshan Institute,Southwest Jiaotong University,Tangshan 063000,China;School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China;Department of Mechanics and Maritime Sciences,Chalmers University of Technology,Gothenburg 41296,Sweden)

机构地区：[1]北京中车赛德铁道电气科技有限公司,北京100176 [2]西南交通大学唐山研究院,河北唐山063000 [3]西南交通大学机械工程学院,四川成都610031 [4]查尔姆斯理工大学力学与海事科学系,瑞典哥德堡41296

出　　处：《中南大学学报（自然科学版）》2024年第5期1846-1854,共9页Journal of Central South University:Science and Technology

基　　金：国家自然科学基金资助项目(52172359,52372363);中国国家铁路集团科技研究开发计划项目(K2021J004-A);河北省自然科学基金资助项目(E2022105032)。

摘　　要：针对北京中车赛德公司自主研制的高速受电弓开展160~324 km/h风速下的气动噪声风洞实验,对比分析风速、开/闭口运行状态对受电弓气动噪声特性的影响规律,并预测更高风速下的受电弓气动噪声。研究结果表明:受电弓气动噪声及其传播特性与风速、运行状态密切相关,弓头及附近区域受到脱落涡的影响易出现单音噪声。远场噪声总声能以风速的5.6~6.0次方增加,通过数据拟合推测400 km/h风速下开/闭口状态受电弓远场噪声总声压级分别为106.8 dB和106.6 dB。Wind tunnel tests of aerodynamic noise at wind speeds from 160 km/h to 324 km/h were carried out for high speed pantograph developed by Beijing CRRC CED Co.Ltd.The effects of wind speed and open/close operation status on pantograph aerodynamic noise characteristics were analyzed,and the pantograph aerodynamic noise at higher speed was predicted.The results show that the aerodynamic noise of the pantograph and its propagation characteristics are closely related to the wind speed and operating status.The panhead and nearby areas are prone to single-tone noise due to the influence of shedding vortices.The total sound pressure energy of the far-field noise increases with the power of 5.6−6.0 of wind speed.The total sound pressure levels of the pantograph far-field noise in the open/closed state are predicted to be about 106.8 dB and 106.6 dB respectively at the wind speed of 400 km/h by data fitting.

关 键 词：高速列车 受电弓 开/闭口运行 气动噪声 风洞试验 

分 类 号：U264.34[机械工程—车辆工程]