Abstract
As the operating speed of a train increases, there is a growing interest in reducing damage caused by derailment and collision accidents. Since a collision with the surrounding structure after a derailment accident causes a great damage, protective facilities like a barrier wall or derailment containment provision (DCP) are installed to reduce the damage due to the secondary collision accident. However, the criteria to design a protective facility such as locations and design loads are not clear because of difficulties in predicting post-derailment behaviors. In this paper, we derived a simplified frame model that can predict post derailment behaviors in the design phase of the protective facilities. The proposed vehicle model can simplify for various frames to reduce the computation time. Also, the actual derailment tests were conducted on a real test track to verify the reliability of the model. The simulation results of the proposed model showed reasonable agreement to the test results.
Highlights
As train speeds increase, safety becomes increasingly significant
The overall trend of collision acceleration was found toand becolliding similar. at Conclusions and the simulation have similar behaviors derailing and colliding at the same time. Protective facilities such as barrier walls are installed in a dangerous zone in order to reduce. Protective such barrier are installed in a facilities dangerous zone in order behaviors to reduce damage after thefacilities derailment ofas a train, butwalls research on protective with derailment damage after thefacilities derailment a Dynamic train, but research onisprotective facilitiesway with behaviors
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Summary
Safety becomes increasingly significant. Railway accidents are reported around the world every day. Be guided by the outer rail before collide against and the design barrier loads of the protective facility, it is important to know the derailment behaviors of trains. Liang Ling [15] studied the efficacy of the guard rail system (GRS) to minimize the derailment of potential of trains laterally colliding by a heavy vehicle, and the sensitivities of parameters of the guard rail system such as the flange way width, and reported the installation height. The deviation prevention effects by installation of a derailment containment provision (DCP), which is one of the barrier types, are verified through the derailment tests
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