Title: | Design of a large deformable obstacle for railway crash simulations according to the applicable standard |
Authors: | Špirk, Stanislav Kemka, Vladislav Kepka, Miloslav Malkovský, Zdeněk |
Citation: | Applied and Computational Mechanics. 2012, vol. 6, no. 1, p. 83-92. |
Issue Date: | 2012 |
Publisher: | University of West Bohemia |
Document type: | článek article |
URI: | http://www.kme.zcu.cz/acm/index.php/acm/article/view/142/160 http://hdl.handle.net/11025/1309 |
ISSN: | 1802-680X (Print) 2336-1182 (Online) |
Keywords: | kolejová vozidla;železnice;odolnost vůči nárazu;kolize;metoda konečných prvků;simulace |
Keywords in different language: | rail vehicles;railway;crashworthiness;collision;finite element method;simulation |
Abstract: | This article discusses the design of a deformable obstacle to be used in simulated rail and road vehicle collisions as prescribed by scenario 3 specified by standard ČSN EN 15227. To approve a vehicle in accordance with this standard, it is necessary to carry out numeric simulations of its collision with a large obstacle, following the standard’s specification. A simulated impact of a rigid ball into the obstacle is used to calibrate the obstacle’s properties, and the standard specifies limit deformation characteristics for that collision. The closer are the deformation characteristics observed in the test to the limit characteristics prescribed by the standard, the more favorable results can be expected when using the obstacle in actual numeric simulations of frontal impacts of rail vehicles. There are multiple ways to design a FEM model of the obstacle; this article discusses one of those. It shows that given a suitable definition of material properties, this particular approach yields quite favorable deformation characteristics. |
Rights: | © 2012 University of West Bohemia. All rights reserved. |
Appears in Collections: | Volume 6, number 1 (2012) Články / Articles (RTI) Volume 6, number 1 (2012) |
Please use this identifier to cite or link to this item:
http://hdl.handle.net/11025/1309
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.