Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Analysis of Running Safety According to Changes of Guard Rail Length on F10/F12 Turnout

F10/F12 분기기에서의 가드레일 길이 변화에 따른 주행안전성 해석

  • Eom, Beom Gyu (Dept. of Rolling Stock System Engineering, Graduate School of Railroad, Seoul Nat'l Univ. of Science and Technology) ;
  • Kim, Sung Jong (Korea Agency for Infrastructure Technology Advancement) ;
  • Lee, Seung Il (Korea Nat'l Univ. of Transportation) ;
  • Lee, Hi Sung (Dept. of Rolling Stock System Engineering, Graduate School of Railroad, Seoul Nat'l Univ. of Science and Technology)
  • 엄범규 (서울과학기술대학교 철도전문대학원 철도차량시스템공학과) ;
  • 김성종 (국토교통과학기술진흥원) ;
  • 이승일 (한국교통대학교) ;
  • 이희성 (서울과학기술대학교 철도전문대학원 철도차량시스템공학과)
  • Received : 2012.04.25
  • Accepted : 2013.03.07
  • Published : 2013.06.01
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Abstract

The speed-limit regulation on a turnout is the main factor inhibiting the speed-up of conventional lines. The specified speed for a train moving through a turnout system is lower than that for a train traveling over the general track. This is done to ensure the running safety of a railway vehicle moving through a turnout. In this study, the shape change example of the guard rail component of a turnout in the Daegu Metropolitan Transit Corporation (DTRO) system was studied. A theoretical examination of the geometrical interaction formula according to wheel/rail shape at the turnout was conducted. Running safety analysis by changing the length of the guard rail on the F10/F12 turnout using the developed analysis techniques (by VI-Rail) was achieved, and the effect on railway safety was examined accordingly.

기존선에서의 속도향상을 저해하는 요인은 매우 다양하지만, 그 중 분기기 통과속도 제한규정을 가장 대표적 사례로 손꼽히고 있다. 현재, 기존선 분기기의 직선측 최고 통과속도는 일반 선로의 차량 최고 주행속도에 비하여 낮은 속도로 제한되어 운행하고 있으며 분기기내에서 주행속도를 제한하는 것은 분기기 통과 시 철도차량의 주행안전성을 확보하는데 목적을 두고 있다. 본 연구에서는 대구도시철도공사의 분기기 가드레일에 대한 형상 변경사례를 기반으로 하여, 분기기에서의 차륜/레일 형상에 따른 기하학적 관계식을 이론적으로 검토하였으며, 개발한 VI-Rail 분기기 해석기법을 통하여 F10/F12 분기기에서의 가드레일 길이 변화에 따른 주행안전성 해석을 수행하여 그에 따른 영향을 살펴보았다.

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References

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