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A train impact model test device

A test device and impact model technology, applied in measurement devices, impact testing, railway vehicle testing, etc., can solve the problems of large computational workload, many simplified assumptions, complex numerical modeling, etc., to avoid serious damage and to achieve accurate simulation data. , the effect of reducing casualties and losses

Active Publication Date: 2019-01-15
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • A train impact model test device
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Experimental program
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Embodiment

[0024] figure 1 Shown, a kind of specific embodiment of the present invention is, a kind of train impact model test device, it is characterized in that:

[0025] The middle part of table top 1 places the I-shaped steel 14 of simulated track, and the train marshalling model 3 is installed on the I-shaped steel 14; The two sides of the front part of the train marshalling model 3 are provided with wing plates 15, fixed on the table top 1 just behind the wing plate 15 There is an impact cylinder 16; the impact cylinder 16 is connected with the air compressor 4;

[0026] The platform 1 in front of the train formation model 3 is fixed with an angle-adjustable rigid baffle 2 simulating the side wall of the tunnel, and a force sensor 11 is installed in the middle of the rigid baffle 2;

[0027] Two laser emitters 13a are installed on the table 1 on one side of the front part of the I-shaped steel 14, and two laser sensors 13b are installed on the table 1 on the other side of the fron...

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Abstract

A train impact model test device is characterized in that: an I-shaped steel for simulating a track is placed in the middle of the platform, and a train marshalling model is installed on the I-shaped steel; both sides of the front part of the train marshalling model are provided with wing plates, and the rear of the wing plate is The impact cylinder is fixed on the table; the impact cylinder is connected with the air compressor; the angle-adjustable rigid baffle that simulates the side wall of the tunnel is fixed on the table in front of the train marshalling model, and a force sensor is installed on the rigid baffle; the front part of the I-shaped steel Two laser transmitters are installed on one side of the table, and two laser sensors are installed on the other side of the table. The device can simulate the impact of the train marshalling on the side wall of the tunnel at different speeds and different impact angles, and obtain the impact force of the train derailment hitting the tunnel, so as to provide more accurate and reliable test basis for the anti-collision design and construction of the tunnel, so as to avoid train derailment The impact will cause serious damage to the tunnel, induce secondary disasters such as floods, and reduce casualties and losses caused by accidents.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/08G01M17/08
CPCG01M7/08G01M17/08
Inventor 晏启祥曾勤徐亚军黄希
Owner SOUTHWEST JIAOTONG UNIV
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