한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제21권3호
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  • Pages.248-257
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  • 2011
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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철로를 따라 전파되는 파동 해석을 위한 고주파수 대역 철로 모델링

Modelling of Railway Tracks for Wave Propagation along Railway Tracks at High Frequencies

  • 유정수 (울산대학교 조선해양공학부)
  • 투고 : 2011.01.17
  • 심사 : 2011.03.02
  • 발행 : 2011.03.20
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초록

It was reported recently that railpads can be included as a continuous elastic support of the rail and the model was justified from experiments. In general, however, railpads are installed discretely on sleepers with a regular span. The effect of the discrete railpad was not clearly examined so far in such a high frequency range. In this paper, the effect of the railpads in track modelling for high frequencies is investigated by means of the finite element analysis. To do that, the railpads are regarded as 'a continuous elastic support' and 'a discrete elastic support' in this paper. The dispersion relations and decaying features are predicted and compared between the two models up to 80 kHz.

키워드

참고문헌

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피인용 문헌

  1. Wave Propagation in a Strip Plate with Longitudinal Stiffeners vol.23, pp.6, 2013, https://doi.org/10.5050/KSNVE.2013.23.6.512