A Study on Wheel Noise Reduction Device for Railway Vehicle

철도차량 운행시 차륜방사소음 저감장치에 관한 연구

  • 이병철 ((주)에이브이티, 기술연구소) ;
  • 이진영 ((주)에이브이티, 기술연구소) ;
  • 호경찬 ((주)에이브이티, 기술연구소) ;
  • 이용현 ((주)에이브이티, 기술연구소) ;
  • 김건영 ((주)에이브이티, 기술연구소)
  • Published : 2010.06.10

Abstract

The noise emitted during train operation is generated with various reasons. It is known that the major noise generation is classified according to the ranges of train speed; that is, engine noise at lower speed range, rolling noise at medium speed range, and air-borne noise at higher speed range. These noises are transmitted in combined form with the noises generated from track components and under-carriage, etc. The rolling noise as a major noise at medium speed range is caused by the vibration occurred at wheel/rail interface. The vibration occurred at wheel/rail interface is transmitted to wheel and rail, and this vibration is emitted from wheel and rail as a noise. The object of this study is to investigate the effect of wheel damper of low noise wheel. In this study theoretical and experimental analysis is performed by numerical model calculations and impact test.

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