| Improving Collision Energy Absorption In High Speed Train By Using Thin Walled Tubes Ehsan Salimi, Habib Molatefi, MohammadAli Rezvani and Erfan Shahsavari
International Journal of Railway, vol. 6, no. 3, pp.85-89, 2013
Abstract : The purpose of this paper is investigating the effect and influence rates of utilizing thin walled energy absorption tubes
for improving crashworthiness parameter by increasing energy absorption of the body in high speed railcars. In order to
find this, a proper profile of available tubes is chosen and added to the structure of selected high speed train in Iranian
railway network (Pardis Trainset) and then examined in the scenario of impact with other moving rolling stock. Because
of the specific features of LS-DYNA 3D software at collision analysis, the dynamic simulation has been performed in
LS-DYNA 3D. The results of the analysis clearly indicate the improvement of train crashworthiness as the energy
absorption of structure increases more than 30 percent in comparison with the original body. This strategy delays and
reduces the shock to the structure. The verification of the simulation is by using ECE R66 standard.
Keyword :
Crashworthiness, Thin walled tube, High speed train, Dynamic simulation, LS-DYNA 3D
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