Aerodynamic noise prediction model of pantograph for high-speed train

China’s rapid development of high-speed train has been in the research spotlight over the years; this paper presents a method to predict the transmission of aerodynamic noise and rail noise inside train compartments for high-speed trains operating at speeds larger than 200 km/h. The numerical tool could be used in parameter studies for noise control. In order to develop the noise prediction model of high speed train, the noise source of high-speed train is analyzed. Based on the noise analysis, the SEA model is built. Due to the small noise difference in one train car, the SEA model is divided into head cab, head passenger cab and middle car three parts. Combined with the finite and boundary element method, the input power and SEA parameters are researched and calculated. In the end of the paper, the results of SEA noise predicting model are compared with theoretical calculation results in order to verify the engineering use.

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Aerodynamic noise of high-speed train pantographs: Comparisons between field measurements and an updated component-based prediction model

Applied Acoustics ◽

10.1016/j.apacoust.2020.107791 ◽

2021 ◽

Vol 175 ◽

pp. 107791

Author(s):

Xiaowan Liu ◽

Jin Zhang ◽

David Thompson ◽

Eduardo Latorre Iglesias ◽

Giacomo Squicciarini ◽

...

Keyword(s):

Prediction Model ◽

High Speed ◽

Field Measurements ◽

Aerodynamic Noise ◽

High Speed Train

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Flow Simulation and Aerodynamic Noise Prediction for a High-Speed Train Wheelset

International Journal of Aeroacoustics ◽

10.1260/1475-472x.13.7-8.533 ◽

2014 ◽

Vol 13 (7-8) ◽

pp. 533-552 ◽

Cited By ~ 20

Author(s):

J. Y. Zhu ◽

Z. W. Hu ◽

D. J. Thompson

Keyword(s):

High Speed ◽

Flow Simulation ◽

Aerodynamic Noise ◽

Noise Prediction ◽

High Speed Train

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Study on the Aerodynamic Noise Characteristics of the Pantograph of the High-speed Train

Journal of Mechanical Engineering ◽

10.3901/jme.2018.04.231 ◽

2018 ◽

Vol 54 (4) ◽

pp. 231 ◽

Cited By ~ 1

Author(s):

Jiali LIU

Keyword(s):

High Speed ◽

Aerodynamic Noise ◽

High Speed Train ◽

Noise Characteristics

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Reduction of Aerodynamic Noise of High-speed Train Pantograph

Journal of Mechanical Engineering ◽

10.3901/jme.2017.06.094 ◽

2017 ◽

Vol 53 (6) ◽

pp. 94

Author(s):

Yadong ZHANG

Keyword(s):

High Speed ◽

Aerodynamic Noise ◽

High Speed Train

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The Application of Numerical Simulation Technology in the External Aerodynamic Noise Field of High-Speed Train

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.101-102.197 ◽

2011 ◽

Vol 101-102 ◽

pp. 197-201 ◽

Cited By ~ 2

Author(s):

Zhen Gyu Zheng ◽

Ren Xian Li

Keyword(s):

Numerical Simulation ◽

Boundary Condition ◽

High Speed ◽

Aerodynamic Noise ◽

Dipole Source ◽

Center Line ◽

High Speed Train ◽

Noise Field ◽

Computational Fluid Dynamics Cfd ◽

Flow Pressure

This paper utilized the Boundary Element Method (BEM) combined with the Computational Fluid Dynamics (CFD) based on Lighthill’s analogy in the high-speed train model, and converted the fluctuating flow pressure near the vehicle’s surface into the dipole source boundary condition in acoustics grid, eventually succeeded in completing the numerical simulation of aerodynamic noise field outside the high-speed train by introducing the dipole source boundary condition into the train BEM model. The results show that the main aerodynamic noise controlling area is 15-20 meters away from the track center line in the horizontal direction, and the Sound Press Level (SPL) is 63-72dB.

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