Vibration and noise characteristics of high speed train depending on its speed

속도변화에 따른 고속철도차량의 진동 및 소음 특성

  • 이준석 (한국철도기술연구원/과학기술연합대학원대학교 미래첨단교통시스템공학과) ;
  • 이시우 (한국철도기술연구원 철도시스템안전연구본부) ;
  • 고효인 (한국철도기술연구원 철도시스템안전연구본부) ;
  • 유원희 (한국철도기술연구원 철도시스템안전연구본부)
  • Published : 2007.05.17

Abstract

In this paper, the characteristics of noise and vibration of high speed train is analyzed depending on its speed. The speed is a very important parameter because it can affect the interaction between the train and the environment as well as the characteristics of the train itself. To measure its characteristics, we analyzed the signals from microphones and accelerometers which were attached to the passenger car of the high speed train. The signals from each sensor were stored in the recorder, and then analyzed by using the signal processing program. The data from each sensor are analyzed with the spectrogram. From the spectrogram, we found some distinct characteristics of the passenger car. Also, the characteristics of the noise propagation were inferred from the spectrogram.

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