Real vehicle collision test system of rail vehicles

Abstract

A real vehicle collision test system of rail vehicles comprises a central control platform, a transmitter, a real vehicle and a collision wall; the real vehicle is placed on a rail which is arranged between the transmitter and the collision wall; the lateral side of the collision wall is provided with a collision speed measuring device and a high-speed photography device; in the collision test process, work of the transmitter, the collision speed measuring device, the high-speed photography device and a measured force collection device of the collision wall is controlled by a program of the central control platform and related data are received and stored; the real vehicle accelerates within the effective stroke through the transmitter, the real vehicle collides with the collision wall after a certain distance of unpowered free sliding, and the free sliding distance of the real vehicle is at least 1.1 times of the effective stroke of the transmitter; the test collision speed during the collision of the real vehicle and the collision wall is 1 to 2 times of the set collision speed, the set collision speed is 20 to 40 % of the real vehicle operating speed, and the lowest test collision speed is not less than 25 miles every hour; analytical calculation is performed after the test is achieved and a test result is output.

Description

technical field [0001] The invention relates to a rail vehicle actual vehicle impact test system. Background technique [0002] Train collision accidents 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 study of the crashworthiness of rail vehicle structures, the real vehicle impact test is an irreplaceable research method that can truly reflect the impact process. The crashworthy and energy-absorbing vehicle body must be developed based on the actual vehicle crash test. [0003] Chinese patent application number is 200610046823.3, and the name is called " automobile passive safety system collision test method " and...

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

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