Simulation Study on Aerodynamic Noise Characteristics of High-Temperature Superconducting Maglev Train

被引：1
|
作者：
Yang Z. [1 ,2 ,3 ]
Yang C. [1 ,2 ,3 ]
Gao J. [1 ,2 ,3 ]
Lü Z. [1 ,2 ,3 ]
Liu H. [1 ,2 ,3 ]
机构：
[1] School of Traffic & Transportation Engineering, Central South University, Hunan, Changsha
[2] Joint International Research Laboratory of Key Technology for Rail Traffic Safety, Central South University, Hunan, Changsha
[3] National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle, Central South University, Hunan, Changsha
来源：
Zhongguo Tiedao Kexue/China Railway Science | 2023年 / 44卷 / 02期
关键词：
Aerodynamic noise; High-temperature superconducting maglev train; Large eddy simulation; Penetrable integral surface;
D O I：
10.3969/j.issn.1001-4632.2023.02.10
中图分类号：
学科分类号：
摘要：
Aerodynamic noise is the main source of noise of high-temperature superconducting maglev trains. Taking the 8-car model with 1: 8 scaling of the new high-temperature superconducting maglev train as the research object, numerical simulations of the aerodynamic noise characteristics of the train under 4 speed levels, namely 500, 550, 600 and 650 km ∙ h−1, are conducted by establishing a penetrable integral surface based on the large eddy simulation (LES) method and the K-FWH equation. The results show that under the constraint of U-shaped track, the aerodynamic excitations around the train are mainly concentrated on both sides of the train roof, the tail train streamline and the wake area. The dipole sources are mainly distributed on both sides of the roof surface of the middle train, the tail train streamline and behind the superconducting coil; and the wake area is also a key source area of aerodynamic noise. The radiated noise spectrum of the train shows the characteristic of the “broad peak” (100 Hz-315 Hz). The low-frequency noise energy increases as the train speed increases. The variation laws of radiation noise level at the measured points are consistent under the 4 speed levels, and the maximum noise values are 94. 2, 96. 4, 100. 1 and 105. 2 dB(A), respectively. As the train speed increases, the energy share of the quadrupole source increases continuously, and the average energy share of the quadrupole sources at the 16 measurement points exceeds 90% when the train speed is greater than 600 km ∙ h−1. The research results can provide a reference for the aeroacoustics optimization design for high-temperature superconducting maglev trains. © 2023 Chinese Academy of Railway Sciences. All rights reserved.
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页码：92 / 101
页数：9
相关论文
共 20 条
  • [1] DING Sansan, YAO Shuanbao, CHEN Dawei, Aerodynamic Lift Force of High-Speed Maglev Train［J］, Journal of Mechanical Engineering, 56, 8, pp. 228-234, (2020)
  • [2] XIONG Jiayang, DENG Zigang, Research Progress of High-Speed Maglev Rail Transit［J］, Journal of Traffic and Transportation Engineering, 21, 1, pp. 177-198, (2021)
  • [3] DENG Z G, ZHANG W H, ZHENG J，, Et al., A High-Temperature Superconducting Maglev Ring Test Line Developed in Chengdu，China［J］, IEEE Transactions on Applied Superconductivity, 26, 6, pp. 1-8, (2016)
  • [4] WU Yuwei, GAO Jianyong, YANG Zhigang, Numerical Simulation of Radiated Aeroacoustic Characteristics of TR08 Maglev Trains［J］, Journal of Railway Science and Engineering, 19, 10, pp. 2794-2803, (2022)
  • [5] ZHANG Jie, WU Yuwei, GAO Jianyong, Et al., Numerical Simulation of Aerodynamic Noise Characteristics of High-Speed Maglev Train with a Speed of 600 km·h<sup>−1</sup>［J］, China Railway Science, 42, 6, pp. 112-121, (2021)
  • [6] ZHOU P, ZHAO C F，, Et al., Numerical Study on the Flow Field Characteristics of the New High-Speed Maglev Train in Open Air［J］, Journal of Zhejiang University：SCIENCE A, 21, 5, pp. 366-381, (2020)
  • [7] HUANG S, YANG M Z., Aerodynamics of High-Speed Maglev Trains Passing Each Other in Open Air［J］, Journal of Wind Engineering and Industrial Aerodynamics, 188, pp. 151-160, (2019)
  • [8] TAN X M, YANG Z G，, Et al., Characteristics and Mechanism Analysis of Aerodynamic Noise Sources for High-Speed Train in Tunnel［J］, Complexity, (2018)
  • [9] FRANCESCANTONIO P D., A New Boundary Integral Formulation for the Prediction of Sound Radiation［J］, Journal of Sound and Vibration, 202, 4, pp. 491-509, (1997)
  • [10] HAWKINGS D L., Sound Generation by Turbulence and Surfaces in Arbitrary Motion ［J］, Philosophical Transactions of the Royal Society of London：Series A，Mathematical，Physical and Engineering Sciences, 264, 1151, pp. 321-342, (1969)
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