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Study on Computational Simulation of a Metro Collision Accident and Improvement of Passive Safety

도시철도 충돌사고 시뮬레이션 및 충돌안전도 개선방안 연구

  • Jung, Hyun Seung (Railroad Safety Research Division, Korea Railroad Research Institute) ;
  • Son, Seung Wan (Railroad Safety Research Division, Korea Railroad Research Institute) ;
  • Kwon, Tae Soo (Railroad Safety Research Division, Korea Railroad Research Institute) ;
  • Kim, Jin Sung (Railroad Safety Research Division, Korea Railroad Research Institute)
  • 정현승 (한국철도기술연구원 철도안전연구실) ;
  • 손승완 (한국철도기술연구원 철도안전연구실) ;
  • 권태수 (한국철도기술연구원 철도안전연구실) ;
  • 김진성 (한국철도기술연구원 철도안전연구실)
  • Received : 2015.04.09
  • Accepted : 2015.06.16
  • Published : 2015.09.01

Abstract

In this study, we simulate the railway crash accident that occurred at the Sangwangsimni station on the Seoul Metro Line #2, and we propose a solution to minimize the damage. We use LS-DYNA, which is the commercial software employed for collision analysis to perform 1-D and 3-D simulations for the recurrence of accidents. By performing 1-D simulations, we analyze the load, displacement, absorbed energy of the couplers, and acceleration of vehicles, and we evaluate the safety in accidental collisions. By performing 3-D simulations, we analyze the deformation of the car and over-ridding. We propose methods to improve the safety in collisions involving railway vehicles, and we perform collision accident simulations to determine improvements when applying a high-performance energy absorber to the front car.

Keywords

Passive Safety;Metro Train;Collision Accident;Simulation

References

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