Numerical Prediction of Aerodynamic Noise Radiated from High Speed Train Pantograph

摘要：

　　As the train speeds increase,aerodynamic noise of the train becomes one of the main problems.The pantograph,because of its high location,installed between the transmission lines and the vehicle,the aerodynamic noise generated by it cannot be reduced by using sound barrier or other traditional ways,so that the research of the noise source becomes more and more important.In this paper,the flow field and the aerodynamic noise of the pantogragh is numerical simulated and analyzed using Fluent.The flow field is calculated by the Large Eddy Simulation(LES) method,the FW-H acoustic analogy based on the Lighthill acoustic theory is selected as the acoustic model.The computational results show when a train runs at 200km/h,how this typical dipole source produced by pantogragh is distributed in the frequency domain and have a view about the spatial distribution of sound field.

作者: W.ZHANG Y.CHEN Z.YANG

作者单位: Shanghai Automotive Wind Tunnel Center Tongji University, 4800 Caoan Road Jiading District Shanghai 201804, China

会议类型: 国际会议

会议名称: Sixth International Conference on Nonlinear Mechanics(第六届国际非线性力学会议)(ICNM-VI)

会议地点: 上海

会议语种:英文

页码: 463-467

在线出版日期: 2013-08-01（万方平台首次上网日期，不代表论文的发表时间）