A wave propagation model of distributed energy absorption system for trains
作者: Zhaoyang DingZhijun ZhengJilin Yu
作者单位: 1CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics , University of Science and Technology of China , Hefei , China
刊名: International Journal of Crashworthiness, 2019, Vol.24 (5), pp.508-522
来源数据库: Taylor & Francis Journal
DOI: 10.1080/13588265.2018.1479482
关键词: Distributed energy absorption systemElastic wave effectPlastic compaction waveTheoretical analysis
原始语种摘要: Abstract(#br)The dynamic response of distributed energy absorption system used as a passive safety device in high-speed trains is investigated with a one-dimensional wave propagation model, in which carriages are modelled with elastic rods and energy absorber layers are described by a rigid-perfectly plastic-locking material model. Three collision scenarios are analyzed by taking the stresses and velocities of the interfaces as control variables and a set of ordinary deferential equations is obtained for each stage of collision, the duration of which is the time for the elastic wave to pass from one end of the rod to the other. A platform phenomenon of response in all stages is observed. A simplified approximate analysis procedure is proposed to analyze the energy absorption capability....
全文获取路径: Taylor & Francis  (合作)
影响因子:0.789 (2011)

  • absorption 吸收
  • energy 能量
  • propagation 传播
  • distributed 分布的
  • system 
  • capability 能力
  • deferential 输精管的
  • absorber 吸收器
  • elastic 有弹性的
  • variables 变量