Investigation of Pantograph Effect on High-Speed Train Noise

Xiao Feng Zhang; You Gang Xiao; He Lian Deng; Jian Feng Huang

doi:10.4028/www.scientific.net/AMM.233.239

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 233Investigation of Pantograph Effect on High-Speed...

Investigation of Pantograph Effect on High-Speed Train Noise

Abstract:

Using microphone and removable planar microphone array, the exterior and interior vehicle noise near pantograph were investigated when the train ran at 250-350km/h, the noise spectrum characters of these areas were obtained. The results show that at the pantograph seat and in the vehicle below pantograph, the noise spectrum show a broad band distribution, and the noise energy is mainly concentrated within the range of 100Hz-2kHz. Interior vehicle noise below pantograph is a non-uniform reverberant sound field, the regions with larger sound pressure level (SPL) are distributed near the roof, the floor, the side wall below the luggage. For reducing interior vehicle noise below pantograph, such measures as using low noise pantograph, adding sound insulation pad, filling sound absorption materials and improving sealing performance should be taken, and these measures should be effective at 100Hz-2kHz.

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Periodical:

Applied Mechanics and Materials (Volume 233)

Pages:

239-242

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.233.239

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Online since:

November 2012

Authors:

Xiao Feng Zhang, You Gang Xiao, He Lian Deng, Jian Feng Huang

Keywords:

Exterior Noise, Interior Noise, Pantograph, Planar Microphone Array

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