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Xiao You-gang, Tian Hong-qi, Zhang Hong. Prediction of interior aerodynamic noise of high-speed train cab[J]. Journal of Traffic and Transportation Engineering, 2008, 8(3): 10-14.
Citation: Xiao You-gang, Tian Hong-qi, Zhang Hong. Prediction of interior aerodynamic noise of high-speed train cab[J]. Journal of Traffic and Transportation Engineering, 2008, 8(3): 10-14.
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Prediction of interior aerodynamic noise of high-speed train cab

  • 1.

    Key Laboratory for Traffic Safety on Track of Ministry of Education, Central South University, Changsha 410075, Hunan, China

  • 2.

    Postdoctoral Workstation, CSR Sifang Locomotive and Rolling Stock Co., Ltd., Qingdao 266111, Shandong, China

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  • Author Bio:

    Xiao You-gang(1970-), male, PhD, associate professor, +86-731-2655345, csuxyg@163.com

  • Received Date: 2007-12-03
  • Publish Date: 2008-06-25
    Abstract
  • In order to decrease the noise in train cab, the fluctuation pressures of head curved surface of high-speed train were calculated by using large eddy simulation method, which were exerted on the finite element model of train cab as excitement load, the vibration speeds of cab plates were obtained by using harmonic response analysis, and were taken as the excitement condition of acoustic boundary element model of train cab, and the interior aerodynamic noises at different frequencies were attained by using acoustic analysis. Computation result shows that the aerodynamic noises levels in cab change from 52.3 to 58.8 dB (A), at the transitional place from cab windowpane to train roof and near the largest outline of head longitudinal section, the noise press level (SPL) of field points are greater, the noises are dominant ranging from 50 to 315 Hz; the aerodynamic noises in cab are low frequency noises mainly, if the largest outline of head longitudinal section is smoother, the noises will be reduced.

     

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    • References(11)
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