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Study on the Design of Deformation Tube for 200kJ Large Energy Absorption

200kJ 대용량 에너지 흡수용 변형튜브 설계에 관한 연구

Kim, Jin Mo;Lee, Jong Kil;Kim, Ki Nam
김진모;이종길;김기남

  • Received : 2015.11.24
  • Accepted : 2016.03.04
  • Published : 2016.04.30

Abstract

The market share of high-speed railway vehicles is increasing across the world. A high-performance impact energy absorption factor is essential to satisfy the safety standards of railway vehicles. A deformed tube assembly is a typical energy absorption factor in railway vehicles. The tube assembly comprises a deformed tube and a press-fitting punch, its performance depends on the absorption energy characteristics in the plastic zone of the tube. In this study, a deformed tube assembly of a railway vehicle is designed that can absorb a maximum impact energy of 200kJ under plastic deformation. Slab method and finite element analysis are used to estimate the reaction force of the punch in the initial stage, the performance of the designed tube assembly is confirmed experimentally.

Keywords

Deformation tube;Impact energy absorption apparatus;Squeezing tube;Passenger safety;Expansion tube

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Acknowledgement

Grant : 대용량 에너지흡수장치가 적용된 TSI 표준형 연결기 시스템 개발

Supported by : 국토교통부