Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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Analysis on Safety and Ride Comfort of KTX According to Track Surface

고저틀림에 따른 KTX 주행거동 특성 분석

  • 최일윤 (한국철도기술연구원 차륜궤도연구실) ;
  • 구동회 (한국철도기술연구원, 시험인증단) ;
  • 황석렬 (국제대학 자동차계열) ;
  • 임윤식 (한국철도기술연구원 차륜궤도연구실)
  • Received : 2010.11.03
  • Accepted : 2010.11.30
  • Published : 2010.12.06
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Abstract

Track irregularities is one of key factors influencing running behavior of train. In order to ensure safety and ride comfort, it is highly important that relationship between track irregularity and running behavior of vehicle is identified and the criteria for track irregularities is adequately established. Numerical analysis was conducted to investigate influence of surface on running behavior of KTX and various wavelength and amplitude of surface were considered in numerical analysis. Derailment, lateral load, bogie acc., body acc. of numerical analysis results were investigated to evaluate the effect on track profile on safety and ride comfort of KTX.

궤도틀림은 철도차량의 주행거동에 영향을 미치는 중요인자 중 하나이다. 따라서, 적정한 승차감 및 주행안전성 확보를 위해서는 궤도틀림과 차량거동과의 상관관계를 규명하고 적정한 궤도틀림 관리방안을 마련하는 것이 매우 중요하다. 본 논문에서는 궤도틀림 중 경부고속선에서 궤도정정작업 중에서 가장 많은 보수 비중을 차지하고 있는 고저틀림과 KTX 주행거동과의 상관관계를 조사하고자 고저틀림의 파장과 진폭을 매개변수로 차량주행해석을 수행하였다. 탈선계수, 횡압, 대차 횡가속도, 차체 연직 및 횡가속도 등의 KTX 차량거동에 대한 수치해석 결과분석을 통하여 고저틀림의 진폭 및 파장이 KTX 차량의 주행거동에 미치는 영향을 분석하였다.

Keywords

References

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