High-speed offset impact performance testing device and method for train energy absorption test piece
A technology of impact performance and testing equipment, which is applied in the field of cushioning and energy absorption, can solve problems such as increase, and achieve the effects of simple construction, accurate test data, and fast and convenient test methods
Active Publication Date: 2021-06-29
CRRC QINGDAO SIFANG CO LTD +1
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Problems solved by technology
Due to the increase of running speed, the change of the running track, and the improvement of the control method, the risk of derailment and rear-end collision of some trains and other track trains is reduced, but the risk of foreign matter intrusion and high-speed impact offset by the train is increased.
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[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.
[0037] Such as Figure 1-3 As shown, the present invention first discloses a high-speed offset impact performance testing device for train energy-absorbing test pieces, including a driving device 1, an accelerating gun barrel 2, a barrel base 3, an impact projectile 4, and an energy-absorbing test piece 5 , slide rail 6, tooling seat 7, reinforcement tooling 8, rear plate 9, mounting seat 10, force sensor 11, force measuring wall 12 and installation base plate 13, first high-speed photographic camera 14, second high-speed photographic camera 15 and light source 16, wherein the reinforcing tooling 8 includes tie rods 17 and beams 18.
[0038]The driving device 1 has the function of storing and releasing high-pressure gas, which is realized by the ai...
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The invention discloses a high-speed offset impact performance testing device and method for a train energy absorption test piece. The testing device comprises an impact bullet, a high-speed camera, the energy absorption test piece, a mounting seat, a mounting bottom plate, a force measuring sensor and a driving device, the energy absorption test piece is mounted on the mounting seat and is opposite to a launching port of the impact bullet on the driving device; the mounting seat is in sliding connection with the mounting bottom plate in the acceleration track direction of the impact projectile, and the high-speed camera is arranged towards the launching opening and the energy absorption test piece. The high-speed camera is arranged at the tail end of an acceleration gun barrel for measurement and calculation, so that the speed of the impact projectile ejected out of the acceleration gun barrel can be quickly obtained; the deformation condition and the damage condition of the test piece can be conveniently recorded through the high-speed photographing device on the side surface of the test piece; the change condition of the impact force in the whole process can be directly obtained through the dynamic force sensor; and after impact is completed, the test piece is taken down for observation and sectioning, and then the internal deformation mode of the test piece can be visually obtained.
Description
technical field [0001] The invention belongs to the technical field of buffer energy absorption, in particular to a high-speed bias impact performance testing device and method for train energy absorption test pieces. Background technique [0002] At present, collision is one of the serious accident forms faced by all vehicles. The collision safety of vehicles has become the focus of society and one of the core technical features of equipment. Many countries in Europe and the United States have formulated regulations on the crashworthiness of rail vehicles. Technical specifications are enforced. With the development of the rail transit industry, the operating speed of some trains has been continuously increased, and the operating environment has some differences from the previous rail trains. Due to the increase of running speed, the change of running track, and the improvement of control method, the risk of derailment and rear-end collision of some trains and other track t...
Claims
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Login to View More IPC IPC(8): G01N3/307G01M7/08
CPCG01N3/307G01M7/08
Inventor 丁叁叁姚松杜俊涛王万静付善强雷彬
Owner CRRC QINGDAO SIFANG CO LTD