高速列车受电弓气动噪声降噪*
网络出版日期: 2017-03-20
基金资助
*国家科技支撑计划(2013BAG24B02)、国家重点研发计划课题(2016YFB1200403)和高速铁路基础研究联合基金(U1234208)资助项目; 20160323收到初稿，20161129收到修改稿;
Reduction of Aerodynamic Noise of High-speed Train Pantograph
Online published: 2017-03-20
基于Lighthill声学理论，采用宽频带噪声源模型、大涡模拟和Ffowcs Williams-Hawkings声学模型对某型高速列车气动噪声进行数值模拟，建立3节编组高速列车整车气动噪声模型，分析该型高速列车的主要气动噪声声源及远场气动噪声特性，并以受电弓为主要气动噪声源进行降噪研究，主要考虑受电弓的开/闭口方式、不同受电弓导流罩结构、受电弓导流罩不同安装位置等主要噪声源部位处的低噪声设计。基于以上分析，得到低噪声的高速列车受电弓结构，较原始高速列车其最大声压级减小3.1 dBA，达到低噪声设计目标。且通过风洞试验验证了所提出的高速列车气动噪声计算方法的有效性和正确性。
张亚东 , 韩璐 , 李明 , 张继业 . 高速列车受电弓气动噪声降噪*[J]. 机械工程学报, 2017 , 53(6) : 94 -101 . DOI: 10.3901/JME.2017.06.094
Based on Lighthill acoustic theory in this paper,broadband noise source model,large eddy simulation and Ffowcs Williams-Hawkings equation are used to perform numerical simulations in aerodynamic noise of a high-speed train. The aerodynamic noise model of full scale high-speed train is established. The main aerodynamic noise source and the characteristics of far-field aerodynamic noise of a high-speed train are analyzed,as well the analysis methods of noise reduction based on the main noise source is presented. The low-noise design and improvement of high-speed train primarily based on the main noise source such as the knuckle-downstream direction/the knuckle-upstream direction,the different pantograph fairings and the different installations of pantograph fairings. Based on the above analysis,the low-noise structure of full scale high-speed train pantograph which max sound pressure level is 3.1 dBA lower than the original trains is obtained. Thus the designed goal of noise reduction has been achieved. In addition,the accuracy and effectiveness of calculating method of aerodynamic noise has been proved by wind tunnel test.
[1] TALOTTE C. Aerodynamic noise：A critical survey[J]. Journal of Sound and Vibration，2000，231(3)：549-562.
[2] SCHETZ J A. Aerodynamics of high-speed trains[J]. Annual Review of Fluid Mechanics，2001，33(1)：371-414.
[3] 沈志云. 高速列车的动态环境及其技术的根本特点[J]. 铁道学报，2006，28(4)：1-5.
SHEN Zhiyun. Dynamic environment of high-speed train and its distinguished technology[J]. Journal of the China Railway Society，2006，28(4)：1-5.
[4] MELLET C，LÉTOURNEAUX F，POISSON F，et al. High speed train noise emission：Latest investigation of the aerodynamic/rolling noise contribution[J]. Journal of Sound and Vibration，2006，293(3)：535-546.
[5] THOMPSON D J，LATORRE I E，LIU X，et al. Recent developments in the prediction and control of aerodynamic noise from high-speed trains[J]. International Journal of Rail Transportation，2015，3(3)：119-150.
[6] KITAGAWA T，NAGAKURA K. Aerodynamic noise generated by shinkansen cars[J]. Journal of Sound and Vibration，2000，231(5)：913-924.
[7] 张亚东，张继业，李田. 高速列车整车气动噪声声源特性分析及降噪研究[J]. 铁道学报，2016，38(7)：40-49.
ZHANG Yadong，ZHANG Jiye，LI Tian. Research on aerodynamic noise source characterization and noise reduction of high-speed trains vehicle[J]. Journal of the China Railway Society，2016，38(7)：40-49.
[8] KING III W F. A precis of developments in the aeroacoustics of fast trains[J]. Journal of Sound and Vibration，1996，193(1)：349-358.
[9] NOGER C，PATRAT J C，PEUBE J，et al. Aeroacoustical study of the TGV pantograph recess[J]. Journal of Sound and Vibration，2000，231(3)：563-575.
[10] SUEKI T，IKEDA M，TAKAISHI T. Aerodynamic noise reduction using porous materials and their application to high-speed pantographs[J]. Quarterly Report of RTRI，2009，50(1)：26-31.
[11] LEE J，CHO W. Prediction of low-speed aerodynamic load and aeroacoustic noise around simplified panhead section model[J]. Proceedings of the Institution of Mechanical Engineers, Part F：Journal of Rail and Rapid Transit，2008，222(4)：423-431.
[12] IKEDA M，SUZUKI M，YOSHIDA K. Study on optimization of panhead shape possessing low noise and stable ae
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