The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Analysis of Change of Contact Force in the Pantograph Pan Head of Next Generation High Speed Train

차세대 고속전철 팬터그래프 팬 헤드의 압상력 변화 해석

  • Kang, Hyungmin (Dept. of Mechanical Engineering, Dongyang Mirae University) ;
  • Kwon, Hyeok-bin (Dept. of Transportation System Engineering, Graduate School of Transportation)
  • 강형민 (동양미래대학교 기계공학과) ;
  • 권혁빈 (한국교통대학원 교통시스템공학과)
  • Received : 2016.08.25
  • Accepted : 2016.10.28
  • Published : 2017.02.01
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Abstract

In order to investigate the change of contact force of pantograph pan head due to the change of aerodynamic force, three dimensional flow around the pan head were calculated. For this, the aerodynamic modeling of pan head of CX pantograph was performed and the standard deviation of the contact force of the simulation results were compared with those of the experimental results of wind tunnel tests. From the comparison, it was confirmed that the current grid system and the numerical methodologies can be utilized to calculate the aerodynamic characteristics of the pantograph pan head. By using these grid system and the methodologies, the standard deviations of the contact force of pan head were calculated with velocities as 200, 250, 300, 350, and 400 km/h. The maximum standard deviation of the aerodynamic contact force of pan head was 92 N at 400 km/h and statistical minimum contact force was more than 0 N. Therefore, it was confirmed that and the pan head of CX pantograph was statistically contacted with the catenary system with the train speed of 350 km/h though the aerodynamic contact force was changed.

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References

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