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Running Safety Analysis of Railway Vehicle Depending on Railway Inclination Change Under Actual Track Conditions

실제 선로조건에서의 레일 경좌 변화에 따른 철도차량의 주행안전성 해석

  • Kim, Moon Ki (Dept. of Rolling Stock System Engineering, Graduate School of Railroad, Seoul Nat'l Univ. of Science and Technology) ;
  • Eom, Beom Gyu (Dept. of Rolling Stock System Engineering, Graduate School of Railroad, Seoul Nat'l Univ. of Science and Technology) ;
  • Lee, Hi Sung (Dept. of Rolling Stock System Engineering, Graduate School of Railroad, Seoul Nat'l Univ. of Science and Technology)
  • 김문기 (서울과학기술대학교 철도전문대학원 철도차량시스템공학과) ;
  • 엄범규 (서울과학기술대학교 철도전문대학원 철도차량시스템공학과) ;
  • 이희성 (서울과학기술대학교 철도전문대학원 철도차량시스템공학과)
  • Received : 2013.04.29
  • Accepted : 2013.09.13
  • Published : 2013.11.01

Abstract

Railways are currently subject to the enforcement of speed limits for each curve as prescribed by the Railway Operating Rules in Korea. However, research is required to determine the maximum speed of trains passing through each curve that allows them to run without the risk of derailment in relation to the speed enhancement of existing railway tracks. In addition, factors affecting the running safety of railway vehicles can be classified into those in terms of vehicle aspects and those in terms of track aspects. This study sought to analyze the running safety of railway vehicles according to changes in the inclination of the rail from among the factors affecting the enhancement of safety against derailment. To increase the speed of trains passing through curves that have high derailment risk, this study also analyzed the running safety of railway vehicles according to the inclination of the rail and changes in running speed while a vehicle passes through each curve section in both the up and the down train line sections between Namsunghyun and Chungdo, which represent the actual conditions of railway tracks.

Keywords

Rail Inclination;Running Safety;Derailment Coefficient;Wheel unloading Ratio;Curve

References

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