A wave propagation model of distributed energy absorption system for trains
A wave propagation model of distributed energy absorption system for trains
- New search for: Ding, Zhaoyang
- New search for: Zheng, Zhijun
- New search for: Yu, Jilin
- New search for: Ding, Zhaoyang
- New search for: Zheng, Zhijun
- New search for: Yu, Jilin
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. It is found that ignoring the elastic wave effect of carriages will lead to a wrong estimate of the energy absorption capability and the contribution of individual energy absorber.
Document information
A wave propagation model of distributed energy absorption system for trains
International Journal of Crashworthiness ; 24 , 5 ; 508-522
2019-09-03
15 pages
Article (Journal)
Electronic Resource
English
Similar titles
Pressure wave propagation in a short tunnel caused by passings trains
| Tema Archive | 1995
Central energy system for trains
Engineering Index Backfile | 1930
Wave propagation by the passage of two high-speed trains in a tunnel
| Tema Archive | 1996