한국산학기술학회논문지 (Journal of the Korea Academia-Industrial cooperation Society)

  • 제16권12호
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  • Pages.8516-8524
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  • 2015
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  • 1975-4701(pISSN)
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  • 2288-4688(eISSN)
한국산학기술학회 (The Korea Academia-Industrial cooperation Society)
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UIC518 방법에 의한 국내 및 프랑스 고속철도 차량 진동가속도 분석

Analysis of the acceleration measured on Korea and France high speed railways using UIC518 code

  • 최일윤 (한국철도기술연구원 첨단고속철도연구실) ;
  • 김남포 (한국철도기술연구원 물류시스템연구실) ;
  • 이준석 (한국철도기술연구원 첨단고속철도연구실) ;
  • 임지훈 (한국철도기술연구원 첨단고속철도연구실)
  • Choi, Il-Yoon (Advanced High-speed Railroad Systems Research Division, Korea Railroad Research Institute) ;
  • Kim, Nam Po (Logistics System Research Division, Korea Railroad Research Institute) ;
  • Lee, Jun S (Advanced High-speed Railroad Systems Research Division, Korea Railroad Research Institute) ;
  • Lim, Jihoon (Advanced High-speed Railroad Systems Research Division, Korea Railroad Research Institute)
  • 투고 : 2015.09.04
  • 심사 : 2015.12.04
  • 발행 : 2015.12.31
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초록

궤도틀림은 직접 궤도검측을 통해서도 평가가 가능하지만, 차체 진동가속도의 계측을 통해서도 간접적으로 관리상태를 파악할 수 있으며, 최근 이에 대한 연구가 활발히 진행되고 있다. 이러한 간접적인 방법을 통해 국내 경부고속철도 자갈궤도의 유지보수 수준을 조사하고 평가하기 위하여, 국내 경부고속철도와 프랑스 고속철도(TGV)의 차체 진동가속도 계측을 수행하고 UIC518 규격에 제시된 방법에 따라 차체 진동가속도 계측 데이터에 대한 신호처리를 수행하였다. 차체 진동가속도는 차량의 주행속도에 따라서도 영향을 많이 받으므로, 신호처리된 계측결과를 속도대역별로 구분하여 상하방향 차체가속도 및 좌우방향 차체가속도의 크기에 따른 빈도분포를 계산하였다. 이렇게 계산된 빈도분포로부터 차량 주행속도에 따른 차체 진동가속도의 분포특성을 조사하고 UIC518에 제시된 기준과 비교하였다. 또한, 경부고속철도와 프랑스 고속철도의 상하방향 및 좌우방향 차체가속도의 빈도분포에 대한 정량적 비교분석을 수행하고, 국내 경부고속철도 자갈궤도 구간의 궤도틀림 관리수준을 평가하였다.

Track irregularities can be evaluated not only directly by track inspection but also indirectly by measurement of carbody accelerations and many researches are being conducted. Carbody accelerations were measured on the Kyeongbu high speed railway and France high speed line to investigate the situation of the track maintenance at Korea high speed line by using indirect method. Digital signal processing for the measured acceleration data were conducted according to UIC518 code. Since the vehicle speed affects the car body acceleration, the lateral and vertical acceleration of the car body were classified according to the vehicle speed and the distribution characteristics of these acceleration were investigated and evaluated by UIC518 criteria. Finally, the running behavior of KTX on Korea high speed railway were compared with that on France. Distribution characteristics of these acceleration were evaluated and discussed in terms of the track maintenance in Korea high speed line.

키워드

참고문헌

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