Quarterly Report of RTRI
Online ISSN : 1880-1765
Print ISSN : 0033-9008
ISSN-L : 0033-9008
PAPERS
Development of Rail Noise Isolating Material
Masanori HANSAKAShogo MAMADAKiyoshi SATO
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2007 Volume 48 Issue 4 Pages 215-220

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Abstract

Recently, there has been an increasing need to control the rolling noise generated between wheels and rails, but conventional countermeasures such as noise-proof walls have a big disadvantage in that their installation is very labor-intensive. Therefore, the authors have developed a new type of material, named as rail noise isolating material (RNIM), which consists of two laminated layers, one of a foamed ethylene-propylene rubber and another of vibration-damping steel. Impact tests performed in a laboratory and on a commercial line and noise measurements of passing trains verified that RNIM is effective in reducing rolling noise.

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© 2007 by Railway Technical Research Institute
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