Train impact model testing device

Abstract

The invention relates to a train impact model testing device. The train impact model testing device is characterized in that the central part of a table board is provided with an I-shaped steel bar for simulating a rail, and a train formation model is installed on the I-shaped steel bar; two sides of the front part of the train formation model are provided with wing plates, and impact cylinders are fixed on the table board right behind the wing plates; the impact cylinders are connected with an air compressor; an angle-adjustable rigid baffle plate which simulates the tunnel side wall is arranged on the table board in front of the train formation model, and the rigid baffle plate is provided with a force transducer; and two laser emitters are installed on the table board at one side of the front part of the I-shaped steel bar, and two laser inductors are correspondingly installed on the table board at the other side. The train impact model testing device can simulate the impact of the train formation to the tunnel side wall at different speeds and different impact angles, the impact force generated when the train derails and impacts a tunnel is obtained, a more accurate and reliable test basis can be provided for the anti-impact design and construction of the tunnel, and therefore the case that the train derails and impacts the tunnel, the tunnel is severely damaged, and secondary disasters such as flood disasters are induced can be avoided, and injuries, deaths and loss caused by accidents can be reduced.

Description

technical field [0001] The invention relates to a train impact model test device. Background technique [0002] In recent years, with the increase of train speed, train derailment incidents have occurred frequently around the world, such as the derailment accident of an intercity express train near the town of Eschede in Germany in 1998, and the derailment accident of a train on the YTN high-speed railway in South Korea in 2011. , the high-speed train derailment accident in Wenzhou, China in the same year, and the high-speed train derailment accident near Santiago, Spain in 2013. These train derailment accidents not only caused a large number of casualties, but also may cause major damage to the railway infrastructure, especially when the derailment accident occurs in a long underwater shield tunnel, the tunnel damage caused by the impact on the shield tunnel is very easy to induce Secondary disasters such as floods will increase the difficulty of rescue and the casualty ra...

AI Technical Summary

Problems solved by technology

This numerical simulation method involves high-speed contact problems, complex numerical modeling, many simplified assumptions, and a large computational workload; in addition, the objective factors affecting train impact are very complex, and the curve of train derailment impact load obtained by theoretical simulation is consistent with the actual impact load. The deviation is large and the reliability is low

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