In order to research impacting characteristics of the trainset, the impacting model and governing equations are established, in which, the stiffness and nonlinear damping of a buffer, friction force between rail and the vehicles wheels is considered. The stiffness and nonlinear damping of the buffers used in the model is verified by testing results. By numerical simulation, it is found that when moving trainset impacts standing trainset, because the impacting force, stroke of the buffers located in impacting interface is the maximum, the buffers capacity must be large enough to avoid rigid impact. The impacting force, comfort and safety of moving vehicles or standing vehicles far from the impacting interface with the same distance are nearly same. The farer the vehicle is from impacting interface, the little the vehicles damage is, and the safer the passages are. When vehicles are more, the maximum impacting force is constant approximately; when vehicles are fewer, the maximum impacting force descends obviously. If vehicles are fewer, after impacting, it takes short time for trainset to stop.
Research on Impacting Loads between Metro Vehicles
Applied Mechanics and Materials ; 628 ; 199-204
22.09.2014
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Study on Impacting Characteristics of a Metro Vehicle
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