Car body with multiple survival cells of high uniform stiffness: the new concept of increasing passive safety of high-speed trains / Mirosław Włodzimierz Mrzygłód // W: Passive Safety of Rail Vehicles ... więcej

Car body with multiple survival cells of high uniform stiffness: the new concept of increasing passive safety of high-speed trains / Mirosław Włodzimierz Mrzygłód // W: Passive Safety of Rail Vehicles : 10th International Symposium, Berlin 7-8 May 2015 : [proceedings]. Bd. 55 / TU Berlin. – Berlin : Verlag des IFV Bahntechnik e.V., 2015. – (Bahntechnik Aktuell : Schriftenreihe des Interdisziplinären Forschungsverbundes Bahntechnik ; 55). – K. 99-104 : rys. – Bibliogr. 14 poz., Summ. – Dodatkowy tyt.: Railway-Network Proceedings : 10th International Symposium on Passive Safety of Rail Vehicles, Crashworthiness and Interior Design. – ISBN 978-3-940727-48-0

The paper deals with a new concept of car bodies structural optimization of high-speed trains. The design optimization was done from the point of view uniform crashworthiness and structural protection ... więcej

The paper deals with a new concept of car bodies structural optimization of high-speed trains. The design optimization was done from the point of view uniform crashworthiness and structural protection of occupants’ survival space. For the derailment scenario, the author decided to find the solution in the form of rigid frame structure (survival cells), which will provide safety space for the passengers. The new methodology of crashworthiness design is using the topology optimization procedures to find a structural solutions. Moreover, in the design process a new concept of manufacture constraints is included. In illustrative example of optimization, the CCSA algorithm of topology optimization was used to define a thin-walled car body structure. As the optimization result a new design proposition of a car body with multiple survival cells of high uniform stiffness was obtained. The methodology presented in the paper can be easily applied to railway vehicles significantly increasing passengers’ passive safety.