Real vehicle impact test system for pneumatic emission type railway vehicle

A test system and impact test technology, applied in railway vehicle testing, impact testing, machine/structural component testing, etc., can solve the problems of high energy level, large impact area and large volume during impact, and achieve simple and easy operation. , Construct scientific and reasonable effect

Active Publication Date: 2014-07-30
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The two technical solutions disclosed above, although they can be applied in the automotive field, they cannot be directly used in the impact test of rail vehicles.
The fundamental reason is the particularity of the structure of rail vehicles, which are large in size, mass, and large in impact area, generally not less than 4 meters by 4 meters; especially rail vehicles running on high-speed rails have high speeds and high energy levels during impact, so they cannot For direct reference, it is necessary to redevelop the real vehicle crash test system for rail vehicles

Method used

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  • Real vehicle impact test system for pneumatic emission type railway vehicle
  • Real vehicle impact test system for pneumatic emission type railway vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] A steel rail 6 is arranged on the foundation 7 between the launcher 2 and the impact wall 10; the real vehicle 3 is placed on the steel rail 6, and the launcher 2 is installed at the end of the real vehicle 3 facing away from the impact wall 10; the launcher 2 is a pneumatic launching device, It includes a walking trolley 14, a bracket 15, an air storage tank 16, an air compressor 17, a hollow piston 18, a trigger mechanism 19 and a cylinder liner 20; the middle of the hollow piston 18 is installed on the bracket 16; one end of the hollow piston 18 is connected to the air storage tank 16 is connected, the air storage tank 16 is connected with the air compressor 17; the other end of the hollow piston 18 is covered with a cylinder liner 20, the cylinder liner 20 is installed on the traveling trolley 14, and the traveling trolley 14 is placed on the rail 6; the hollow piston 18 is connected to the cylinder A trigger mechanism 19 is arranged between the sleeves 20; the trigg...

Embodiment 2

[0053] Basically the same as Embodiment 1, the difference is the impact wall 10. The impact wall 10 includes a uniform force plate 11, a force measurement acquisition device and an impact pier 13, the uniform force plate 11 faces the actual vehicle 3, and the force measurement acquisition device is located between the uniform force plate 11 and the impact pier 13; the force measurement acquisition device is: A load cell array 12; the central console 1 is electrically connected to the load cell array 12 and receives impact data.

Embodiment 3、4

[0055] On the basis of Embodiments 1 and 2, respectively, the test system is configured to use a braking device, a speed-regulating braking device joint 4 and a debugging speed measuring device 5 during debugging conditions; the speed-regulating braking device joint 4 is fixed on the actual vehicle. 3; the debugging speed measuring device 5 is arranged on one side or both sides of the steel rail 6 and is electrically connected to the central console 1, and the debugging speed measuring device 5 is located at the position when the real vehicle 3 starts to slide freely.

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Abstract

The invention relates to a real vehicle impact test system for a pneumatic emission type railway vehicle. The test system comprises a central control desk, an emitter, a real vehicle and an impact wall, wherein the real vehicle is put on a railway between the emitter and the impact wall; the emitter is a pneumatic emitting device and comprises a walking trolley, a support, an air storage tank, an air compressor, a hollow piston, a triggering mechanism and a cylinder sleeve, the hollow piston is installed on the support, the cylinder sleeve is installed on the walking trolley, and the triggering mechanism is arranged between the hollow piston and the cylinder sleeve; an impact speed measuring device and a high-speed photography device are installed on the side face of the impact wall. In the impact test process, the central control desk controls the emitter, the impact speed measuring device, the high-speed photography device and a force measurement and collection device of the impact wall to work through programs, and receives and stores related data; the unpowered free sliding distance of the real vehicle is at least 1.1 times the effective travel of the emitter, the test impact speed of the real vehicle and the impact wall is not smaller than 25 km/h, and after the experiment, analytical calculation is performed to output an experiment result.

Description

technical field [0001] The invention relates to a real vehicle impact test system of a pneumatic launch type rail vehicle. Background technique [0002] Train collisions seriously threaten the safety of passengers. In order to reduce the losses caused by train collision accidents, the development of impact-resistant and energy-absorbing car bodies is an important way to reduce the losses caused by train collision accidents, and it is also an inevitable trend in the development of the world's railway passenger car body structures (including urban rail transit vehicles). In the crashworthiness research of rail vehicle structure, the real vehicle crash test is an irreplaceable research method that can truly reflect the crash process. The development of a crash-resistant energy-absorbing vehicle body must rely on the actual vehicle crash test. [0003] The Chinese patent application number is 200610046823.3, titled "Automobile Passive Safety System Crash Test Method", which di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/08G01M17/08
Inventor 田红旗刘国伟梁习锋高广军鲁寨军姚松王中钢
Owner CENT SOUTH UNIV
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