Abstract
The collision simulation between a city tram and a car at a level crossing is carried out based on the multi-body dynamics. Compared with the finite element method, this method has an obvious advantage of fast computation speed, so that it is convenient for the study on the dynamic responses and derailment mechanism of railway vehicles during a collision accident. The simulation results show that when a city tram is laterally impacted by a car at a level crossing, the dynamic response and the derailment risk of the collided city tram are greatly influenced by the boundary conditions, such as the mass and speed of the colliding car, the structural arrangement and the loading condition of the city tram. Moreover, in terms of the space limitation of the city tram, two measures are proposed to decrease the lateral impact force during its transition from car body to wheel set. One is to use the secondary damper and the other is to increase the secondary lateral clearance. The simulation results point out that the derailment coefficient of the improved city tram can be reduced by 52%, from 1.63 to 0.79.
Highlights
Tramway is a very important mode of urban passenger transport and it is operated in more than 400 cities all over the world
Unlike finite element method (FEM), multi-body dynamics have the advantage of predicting the gross motion of railway vehicles, so that it is convenient for the study on the dynamic responses and derailment mechanism of the city tram during a collision accident.[14,15,16,17,18,19,20]
The collision simulation between a city tram and a car at a level crossing is carried out based on the multibody dynamics
Summary
Tramway is a very important mode of urban passenger transport and it is operated in more than 400 cities all over the world. In these collisions, some collided city trams derailed. The researches on the crashworthiness of rail vehicles have been mainly concentrated in the frontend collisions (according to the EN 15227)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
