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Durability Evaluation of the Korean Gauge - Adjustable Wheelset System

궤간가변 윤축시스템의 내구성 평가

  • Ahn, Seung-Ho (Dept. of Railway Operation System Engineering, Korea National University of Transportation) ;
  • Chung, Kwang-Woo (Dept. of Railway Operation System Engineering, Korea National University of Transportation) ;
  • Jang, Seung-Ho (ECO-Transportation System Research Division, Korea Railroad Research Institute) ;
  • Kim, Chul-Su (Dept. of Railway Vehicle System Engineering, Korea National University of Transportation)
  • 안승호 (한국교통대학교 철도운전시스템공학과) ;
  • 정광우 (한국교통대학교 철도운전시스템공학과) ;
  • 장승호 (한국철도기술연구원 에코시스템연구실) ;
  • 김철수 (한국교통대학교 철도차량시스템공학과)
  • Received : 2012.11.15
  • Accepted : 2012.12.06
  • Published : 2012.12.31

Abstract

To reduce the cost and the time of transport in Eurasian railroad networks such as TKR(Trans-Korea Railway), TCR(Trans-China Railway) and TSR(Trans-Siberia Railway) owing to the problem of different track gauges (narrow/standard/broad gauge), it is important to develop the gauge-adjustable wheelset(GAW) system to adapt easily to these gauges. The Korean GAW system is developing and will be adapting to the brand new freight trains' to improve the conventional overseas GAW system. In this study, structural and durability analyses are performed from the viewpoint of the safe-life design. The core parts of the system might be safe in range of $1{\times}10^7$ cycles from the result of durability analysis. Moreover, to examine the safety of the system while running on a track, rig fatigue test was performed according to UIC code. The safety of the Korean GAW system is demonstrated through testing that all safety-relevant conditions are satisfied.

이종궤간(표준줴/광궤)이 존재하는 유라시아 철도네트워크(TKR, TCR 및 TSR)의 화물운송시간 및 비용을 절감하기 위해서는 이 구간을 자유롭게 운행할 수 있는 궤간가변 윤축시스템의 개발이 중요하다. 국내에서는 기존 해외 윤축시스템을 보완하고자 새로운 한국형 궤간가변 윤축시스템을 개발 및 제작중이다. 본 연구에서는 안전-수명설계관점에서 강도와 내구성해석을 수행하였다. 본 시스템의 내구성해석결과로서, 주요부품은 $1{\times}10^7$ 사이클까지 안전하였다. 또한, 주행중 안전성을 확인하기위하여 국제철도규정 UIC에 따라 리그피로시험을 수행하였다. 이 시험을 통하여 본 궤간가변 윤축시스템은 관련 안전규정에 만족함을 확인하였다.

Keywords

References

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