소음진동 (Journal of KSNVE)

한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
권호 표지

철도차량의 전동음 예측에 관한 연구 -차륜과 레일의 소음 기여도 분석-

A Study on Prediction of Rolling Noise for Railway -Noise Contribution of Wheels and Rail-

  • 김재철 (한국철도기술연구원 차량연구부) ;
  • 구동회 (한국철도기술연구원 차량연구부)
  • 발행 : 2000.06.01
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초록

The major source of railway noises is rolling noise caused by the interaction of the wheels and rails. This rolling noise is generated by the roughness of the wheel /rail surface on tangent track in the absence of discontinuities such as wheel flats or rail joints. These roughness cause relative vibrations of the wheel and rail at their contact area. The vibrations generated at the contact area are treansmitted through the wheel and rail structures exciting resonances of the wheel and travelling waves in the rail. Then these vibrations radiate noise to the wayside. In this paper we predict the rollingnoise radiated from radial/axial motion of the wheel and vertical/lateral motion of the rail using Remington's analytical model and then compare of the predicted sound pressure and measured one. Although there are some inaccuracy in our prediction. these results show in good agreement between 500 Hz and 3150 Hz.

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참고문헌

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