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      한국형 고속전철의 전동소음 예측에 관한 연구 = Prediction of Rolling Noise of KTX(Korean Train Express)

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      https://www.riss.kr/link?id=A2020383

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      다국어 초록 (Multilingual Abstract)

      Wheel-rail noise is normally classified into three categories : rolling, squeal and impact noise. In this paper, rolling noise caused by the irregularity between a wheel and rail is analysed as follows: The irregularity between the wheel and rail is assumed as combination of sinusoidal profiles. Wheel-rail contact stiffness is linearized by using Hertzian contact theory, and then contact force between the wheel and rail is calculated.
      Vibration of the rail and wheel is calculated theoretically by receptance method and FEM depending on the geometry of wheel or rail for the frequency range of 100~5000Hz, important for noise generation. The radiation caused by those vibration is computed by BEM. To verify this analysis tools, rolling noise is calculated by preceding analysis steps using typical roughness data and it is compared with experimental rolling noise data. This analysis tools show reasonable results and used for the prediction of KTX rolling noise.
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      Wheel-rail noise is normally classified into three categories : rolling, squeal and impact noise. In this paper, rolling noise caused by the irregularity between a wheel and rail is analysed as follows: The irregularity between the wheel and rail is a...

      Wheel-rail noise is normally classified into three categories : rolling, squeal and impact noise. In this paper, rolling noise caused by the irregularity between a wheel and rail is analysed as follows: The irregularity between the wheel and rail is assumed as combination of sinusoidal profiles. Wheel-rail contact stiffness is linearized by using Hertzian contact theory, and then contact force between the wheel and rail is calculated.
      Vibration of the rail and wheel is calculated theoretically by receptance method and FEM depending on the geometry of wheel or rail for the frequency range of 100~5000Hz, important for noise generation. The radiation caused by those vibration is computed by BEM. To verify this analysis tools, rolling noise is calculated by preceding analysis steps using typical roughness data and it is compared with experimental rolling noise data. This analysis tools show reasonable results and used for the prediction of KTX rolling noise.

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      목차 (Table of Contents)

      • Ⅰ. 서론
      • Ⅱ. 차륜과 레일의 동특성 해석
      • Ⅲ. 차륜과 레일의 방사 해석
      • Ⅳ. 결론
      • Ⅰ. 서론
      • Ⅱ. 차륜과 레일의 동특성 해석
      • Ⅲ. 차륜과 레일의 방사 해석
      • Ⅳ. 결론
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