• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 26 Issue 4
Aug.  2013
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Article Contents
LEI Cheng, XIAO Shoune, LUO Shihui. New Special Energy-Absorbing Component at Vehicle End of Rail Vehicles[J]. Journal of Southwest Jiaotong University, 2013, 26(4): 738-744. doi: 10.3969/j.issn.0258-2724.2013.04.022
Citation: LEI Cheng, XIAO Shoune, LUO Shihui. New Special Energy-Absorbing Component at Vehicle End of Rail Vehicles[J]. Journal of Southwest Jiaotong University, 2013, 26(4): 738-744. doi: 10.3969/j.issn.0258-2724.2013.04.022

New Special Energy-Absorbing Component at Vehicle End of Rail Vehicles

doi: 10.3969/j.issn.0258-2724.2013.04.022
  • Received Date: 10 Mar 2012
  • Publish Date: 25 Aug 2013
  • In order to improve the crashworthiness of rail vehicles, a new special energy-absorbing component at vehicle end was designed according to the energy-absorbing principle of axial cutting and compression process of thin-walled metal structure. An equivalent three-dimensional finite element model for the absorbing process of energy-absorbing component was established using the explicit finite element software LS-DYNA, based on which a numerical simulation of the energy-absorbing process was made. The influences of cutting depth, tool rake angle, and chip central angle on the performance of the energy-absorbing component were analyzed. The results show that the energy absorption and interface force of the energy-absorbing component was proportional to the cutting depth and chip central angle, and inversely proportional to the tool rake angle, but was little affected by cutting depth. The stroke efficiency of the new energy-absorbing component can arrive at 100%, and its compression efficiency and gross efficiency can reach more than 70%, all higher than those of the existing energy-absorbing component.

     

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