Aerodynamic Noise Reduction using Porous Materials and their Application to High-speed Pantographs

Aerodynamic Noise Reduction using Porous Materials and their Application to High-speed Pantographs

Aerodynamic noise is a major source of wayside noise generated along high-speed railway lines, making it important to reduce the phenomenon. To this end, a new aerodynamic noise reduction method that involves covering the surface of objects with a particular porous material has been developed. To ve...

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Veröffentlicht in:Quarterly Report of RTRI 2009, Vol.50(1), pp.26-31
Hauptverfasser: SUEKI, Takeshi, IKEDA, Mitsuru, TAKAISHI, Takehisa
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Sprache:eng
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aerodynamic noise
high-speed railway
pantograph
porous material
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container_title Quarterly Report of RTRI
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creator SUEKI, Takeshi
IKEDA, Mitsuru
TAKAISHI, Takehisa
description Aerodynamic noise is a major source of wayside noise generated along high-speed railway lines, making it important to reduce the phenomenon. To this end, a new aerodynamic noise reduction method that involves covering the surface of objects with a particular porous material has been developed. To verify its aerodynamic noise reduction effects, wind tunnel tests using cylinders and a high-speed pantograph were conducted, and the noise produced was measured. The results showed that the noise generated from the cylinders and the high-speed pantograph were reduced by the application of porous materials, thus confirming that the method is effective in reducing such aerodynamic noise.
doi_str_mv 10.2219/rtriqr.50.26
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source J-STAGE Free; EZB-FREE-00999 freely available EZB journals
subjects aerodynamic noise
high-speed railway
pantograph
porous material
title Aerodynamic Noise Reduction using Porous Materials and their Application to High-speed Pantographs
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