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Mass center two-degree-of-freedom adjusting type collision test trolley with power

A technology of collision test and degree of freedom, applied in the field of rail vehicle collision test, can solve the problems of lack of versatility and the inability to adjust the weight of the whole vehicle, and achieve the effect of improving the test accuracy and increasing the rigidity

Pending Publication Date: 2019-12-10
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Putting the simple crash test platform on the bogie for the crash test will cause the position of the center of mass of the vehicle to change. At the same time, the weight of the vehicle cannot be adjusted, which does not have good versatility. crash test bench

Method used

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  • Mass center two-degree-of-freedom adjusting type collision test trolley with power
  • Mass center two-degree-of-freedom adjusting type collision test trolley with power
  • Mass center two-degree-of-freedom adjusting type collision test trolley with power

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings, enabling those skilled in the art to implement it with reference to the description.

[0024] refer to Figure 1 to Figure 3 , the described a kind of center of mass dual-degree-of-freedom adjustable self-powered crash test trolley is characterized in that it mainly consists of a vehicle frame 1, a support truss 2, an end wall brace device 3, a counterweight unit 4, a measurement and control unit, The No. 1 power unit 5 and the No. 2 power unit 6 are composed. The vehicle frame 1 is the basic skeleton of the crash test trolley. row of evenly distributed bolt holes, the support truss 2 is fixedly installed on the vehicle frame 1, and its front end is connected with the end wall diagonal bracing device 3, and the end wall diagonal bracing device 3 is supported on the vehicle frame by its own diagonal brace 1, the lower end of which is fixedly installed on the ve...

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Abstract

The invention relates to a mass center two-degree-of-freedom adjusting type collision test trolley with power. The collision test trolley comprises a trolley frame, a supporting truss, an end wall inclined strut device, a balance weight unit, a measurement and control unit, a first power unit, a second power unit and the like. The collision test trolley is provided with a power system itself, andcan achieve self acceleration or deceleration. The mass center position of the collision test trolley can be adjusted in two degrees of freedom in the transverse and longitudinal directions of the trolley body, so that the application range is expanded. The end wall inclined strut device adopts a mode of inclined strut and half vehicle body support, the rigidity of the end wall inclined strut device is greatly improved, and the energy absorption of the structure of the end wall inclined strut device is reduced. The collision test trolley is provided with a speed measurement system which is matched with the power system, the real-time control on the vehicle speed of the collision test trolley can be realized, and the accuracy of test data is improved.

Description

technical field [0001] The invention belongs to the field of rail vehicle crash tests, and relates to a center-of-mass dual-degree-of-freedom adjustable crash test platform with self-powered power. More precisely, in the present invention, the crash test trolley itself has a power system, which can accelerate or decelerate itself. At the same time, the position of the center of mass of the crash test trolley can be adjusted in two degrees of freedom in the lateral and longitudinal directions of the vehicle body, expanding the scope of application. The diagonal bracing device of the end wall adopts the method of diagonal bracing and half body support, which greatly increases the rigidity of the end wall diagonal bracing device and reduces the energy absorption of its own structure. The real-time control of the vehicle speed of the crash test platform improves the accuracy of the test data. Background technique [0002] Crash test rig is the most direct and effective method t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/08G01M7/08
CPCG01M17/08G01M7/08
Inventor 胡常青苏建徐观邱雯婕张伟伟张程王东亚朱婷婷苗晓锋林慧英陈熔
Owner JILIN UNIV
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