The Journal of the Convergence on Culture Technology (문화기술의 융합)

The International Promotion Agency of Culture Technology (국제문화기술진흥원)
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A Study on Optimum Spacing of Rail Joint for Personal Rapid Transit(PRT) Track System

소형무인경전철 레일이음매의 적정 간격 산정 연구

  • 최정열 ((주)모든텍 철도인프라연구소) ;
  • 김필수 (성남시청 도시계획과) ;
  • 정지승 (동양대학교 철도건설안전공학과)
  • Received : 2018.05.08
  • Accepted : 2018.07.15
  • Published : 2018.08.31
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Abstract

The objective of this study was to estimate the optimum spacing of rail joint for a personal rapid transit(PRT) track system, and to compare the results with the normal rail and rail joint by performing the finite element analysis(FEA) and field measurements using actual vehicles. Based on the FEA and field measurement results compared, the optimum spacing of the rail joints was calculated to be maximum of 1.20m based on the rail displacement. The vertical displacement of the normal rail was higher than that of the rail joint at a spacing of 1.0m, but it was considered that the vehicle riding performance and serviceability of track would be improved in terms of the stability of the train due to similar to rail defection between normal rail and rail joint. Also, because of the proposed rail joint spacing in this study was longer than the current rail joint spacing, the economic effect would be expected by decreasing the amount of sleepers.

본 연구에서는 레일이음매를 배제할 수 없는 각관형 레일을 사용하는 PRT궤도구조를 대상으로 레일이음매 설치위치 및 간격을 최적화함으로써 레일이음매부의 충격 및 승차감 저하 현상을 최소화 하고자 수치해석 및 현장측정을 통해 열차주행 시 PRT 차량의 실 열차속도를 고려한 궤도 구조의 일반부 및 레일이음매부의 동적거동을 파악하여 레일이음매의 적정간격을 산정하였다.

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References

  1. J.S. Lee, K.T. Kim, “PRT Application Study Using Corridor Analysis; Focused on Nan-Gok Area,” Journal of the Korean Society for Railway, Vol. 14, No. 2, pp. 188-193, 2011. https://doi.org/10.7782/JKSR.2011.14.2.188
  2. J.S. Lee, “PRT Benefit Estimation Study Focused on Nan-Gok Line,” Journal of the Korean Society for Railway, Vol. 14, No. 4, pp. 370-375, 2011. https://doi.org/10.7782/JKSR.2011.14.4.370
  3. J.G. Cho, J.S. Koo, S.W. Kang, R.G. Jeong, “A Study on Design Specifications and Evaluation of Structural Strength for PRT,” Transactions of Korea Society of Automotive Engineers, Vol. 21, No. 4, pp. 153-161, 2013. https://doi.org/10.7467/KSAE.2013.21.4.153
  4. J.G. Cho, J.W. Kim, H.T. Kim, J.S. Koo, S.K. Kang, R.G. Jeong, “A Study on the Durability and Running Stability Evaluation of the Korean PRT,” Transactions of Korea Society of Automotive Engineers, Vol. 22, No. 5, pp. 50-58, 2014. https://doi.org/10.7467/KSAE.2014.22.5.050
  5. J.Y. Choi, "Qualitative Analysis for Dynamic Behavior of Railway Ballasted track," Ph.D dissertation, Technical University of Berlin, 2014
  6. J.Y. Choi, "Prediction of Displacement Induced by Tilting Trains Running on Ballasted Tracks through Measurement of Track Impact Factors," Engineering Failure Analysis, Vol. 31, pp. 360-374, 2013 https://doi.org/10.1016/j.engfailanal.2013.02.004
  7. J.Y. Choi, J.H. Kim, “Evaluation of Dynamic Behavior of Rail Joints on Personal Rapid Transit Track,” Journal of the Korean Society of Safety, Vol. 31, No. 5, pp. 89-94, 2016. https://doi.org/10.14346/JKOSOS.2016.31.5.89
  8. H.T. Kim, "A Study on Suspension Optimization of the Korean PRT Vehicle to Improve Its Running Stability and Ride Quality," Master's thesis, Seoul National University of Science and Technology, 2015.
  9. J.Y. Choi, "Influence of Track Support Stiffness of Ballasted Track on Dynamic Wheel-Rail Forces," Journal of Transportation Engineering, 139:709-718, 2013. https://doi.org/10.1061/(ASCE)TE.1943-5436.0000543
  10. Y.K. Han, S.R. Baek, J.K. Yoon, J.H. Lim, “A Study on Side Impact from Car-to-Car using Finite Element Analysis,” The Journal of The Institute of Internet, Broadcasting and Communication(IIBC), Vol. 15, No. 3, pp. 201-209, 2015. https://doi.org/10.7236/JIIBC.2015.15.3.201