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음향 카메라를 이용한 축소형 철도차량 소음특성 연구

A Study on Noise Characteristics of Small Scale Railway Vehicle using Acoustic Camera

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Abstract

Driving on the track of a railway vehicle running noise and peripheral devices can be distinguished by the behavior of the noise, and speed 200 km/h below the railway vehicle's main source of noise driving the friction that occurs between wheel and rail is the noise. In this study, the friction of railway vehicle in order to measure the noise sound using the acoustic camera to track the position of driving the generation of noise sources, and that the cause was investigated. As a result, an increase in speed up, were found to increase the friction noise. In addition, the noise source and the acoustic camera was able to measure its size.

참고문헌 (5)

  1. B, Mauclaire, "Noise Generated by High Speed Train", Proc INTERNOISSE, ‘90 (1990)
  2. S. Peters, "Prediction of Rail-wheel Noise from High Speed Trains", Acoustica, 28, pp.318~321 (1973)
  3. 우관제, "철도차량 구조기인 소음의 저감에 관한 연구", 한국철도학회논문집, 11(6), pp.519~523 (2008), 한국철도학회
  4. S.R. Kim, "Measurement of Aerodynamic Noise of Maglev Vehicle Models using Sound Camera", the Korean Society for Noise and Vibration Engineering, 2008 spring proceedings, pp.637~640 (2008)
  5. 이승일, "축소형 철도차량의 설계변수에 따른 횡진동 해석", 한국소음진동공학회논문집, 16(12), pp.1231~1237 (2006), 한국소음진동공학회

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