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A Study on the Uplift for Applying of Heavy Simple Catenary System in a Overhead Rigid Conductor Rail Transition Section

강체전차선로 이행구간 Heavy Simple Catenary 적용을 위한 압상량 고찰

  • Kim, Wan-il (Dept. of Transportation System Engineering, Korea National University of Transportation) ;
  • Park, Weon-Chan (SeoulMetro) ;
  • Lee, Jae-Bong (Dept. of Transportation System Engineering, Korea National University of Transportation) ;
  • Kim, Jae-Moon (Dept. of Transportation System Engineering, Graduate School of Transportation, Korea National University of Transportation)
  • Received : 2018.02.05
  • Accepted : 2018.04.03
  • Published : 2018.05.01

Abstract

The transition section of the overhead rigid conductor rail (ORCR) consists of a direct induction device and a limit point to prevent the power supply failure and failure of the electric railway vehicle pantograph due to the difference of the uplift in the catenary line. In T-Bar transition section, a twin simple catenary is mostly installed between the overhead catenary system (OCS) in the ground section and the ORCR in the underground section. In this paper, we compare and analyze the possibility of replacing the twin simple catenary with heavy simple catenary. The reliability of numerical analysis results was confirmed by comparing field test with numerical results. Comparing the numerical results of the twin simple catenary with the heavy simple catenary in the transition section, the difference uplift is 5.9[mm] on average. When applying heavy simple catenary instead of twin simple catenary, the slight difference of uplift can be compensated by adjusting the height of hanger-ear or support bracket.

Acknowledgement

Grant : 철도부품창의연구센터

Supported by : 국토교통과학기술진흥원

References

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