时速600 km高速磁浮列车天线气动声学影响研究  

Study on aeroacoustic effect of high speed maglev train antennaat 600 km/h

作　　者：吕镇东 杨志刚[1,2,3] 袁思齐[1,2,3] 刘翰林 杨成 李盈利 LÜZhendong;YANG Zhigang;YUAN Siqi;LIU Hanlin;YANG Cheng;LI Yingli(Key Laboratory of Traffic Safety on Track,Ministry of Education,School of Traffic&Transportation Engineering,Central South University,Changsha 410075,China;Joint International Research Laboratory of Key Technologies for Rail Traffic Safety,Central South University,Changsha 410075,China;National and Local Joint Engineering Research Center of Safety Technology for Rail Vehicle,Changsha 410075,China;Key Laboratory of Aerodynamic Noise Control,China Aerodynamics Research and Development Center,Mianyang 621000,China)

机构地区：[1]中南大学交通运输工程学院,轨道交通安全教育部重点实验室,湖南长沙410075 [2]中南大学轨道交通安全关键技术国际合作联合实验室,湖南长沙410075 [3]轨道交通列车安全保障技术国家地方联合工程研究中心,湖南长沙410075 [4]中国空气动力研究与发展中心气动噪声控制重点实验室,四川绵阳621000

出　　处：《中南大学学报（自然科学版）》2023年第11期4561-4572,共12页Journal of Central South University:Science and Technology

基　　金：气动噪声控制重点实验室研究基金资助项目(2101ANCL20210302);中国国家铁路集团有限公司科技研究开发计划课题(P2019J008);超导电动磁浮关键技术研究与工程样车研制项目噪声研究气动部分项目(9600009576)。

摘　　要：基于改进的延迟分离涡模型(IDDES)和K-FWH积分方法,针对有/无天线的3种600 km/h高速磁浮列车工况,研究天线模型对列车远场辐射噪声特征的影响。研究结果表明:天线的存在显著增强了车体表面偶极子源辐射,无天线模型、有天线模型1和有天线模型2偶极子辐射噪声声压级最大值分别为91.2、96.0和94.6 dB(A),采用可穿透积分面得到的远场辐射噪声声压级最大值分别为98.9、99.8和100.4 dB(A),四极子声源辐射能量占比分别为89.3%、81.5%和83.1%。辐射频谱呈现“宽峰”特征,主能区位于300~1 000 Hz频段,天线的存在使得峰值频率稍向高频迁移,同时有天线模型存在与天线局部扰动相关的小峰值。Based on the improved delayed separated eddy model(IDDES)and K-FWH integration approach,the impact of antenna models on the far-field radiation noise characteristics of a high-speed maglev train operating at 600 km/h was investigated for three different maglev train situations,both with and without antennas.The results show that the dipole source radiation on the surface of the car is significantly improved by the antenna's presence.The maximum sound pressure levels of dipole radiated noise for the no antenna model,antenna model 1,and antenna model 2 are 91.2,96.0 and 94.6 dB(A),respectively.The penetrating integrating surface provides the highest sound pressure levels of far-field radiated noise,which are 98.9,99.8 and 100.4 dB(A),respectively.The quadrupole sound source radiated energy accounts for 89.3%,81.5%and 83.1%on average,respectively.The radiation spectrum has a"broad peak"characteristic,with the primary energy region located in the 300-1000 Hz frequency band,the existence of the antenna causes the peak frequency to move slightly to high frequency,and there are minor peaks associated with the antenna model's local disruption.

关 键 词：高速磁浮列车 气动噪声 IDDES 可穿透积分面 天线 

分 类 号：U292.917[交通运输工程—交通运输规划与管理]