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Semi-vehicle mass simulation state based bogie hanging natural vibration characteristic test bed

A technology for simulating state and natural vibration characteristics, which can be used in the measurement of resonance frequency, railway vehicle testing, and measuring devices. Accurate and conducive to the effect of social development

Inactive Publication Date: 2011-12-28
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the currently developed bogie parameter determination test bench can only measure the bogie suspension parameters (stiffness and damping), and cannot conduct research on bogie natural vibration characteristics (mode shape and frequency)

Method used

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  • Semi-vehicle mass simulation state based bogie hanging natural vibration characteristic test bed
  • Semi-vehicle mass simulation state based bogie hanging natural vibration characteristic test bed
  • Semi-vehicle mass simulation state based bogie hanging natural vibration characteristic test bed

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Embodiment Construction

[0053] The above object of the present invention is achieved through the following technical solutions, which are described below in conjunction with the accompanying drawings.

[0054] refer to figure 1 , 2 , 3, 4, 5, a bogie suspension natural vibration characteristics test bench based on half-car mass simulation state, the test bench includes test bench positioning and auxiliary support device A, test bench vibration loading device B and half car mass Simulate loading device C. The test bench positioning and auxiliary support device A is fixedly connected with the test bench concrete foundation III, providing a fixed position for the test bench positioning, loading and auxiliary devices and providing counter force support for the actuators in all directions; the test bench vibration loading device B It is fixedly connected with the components on the test bench positioning and auxiliary support device A, fixedly constrains the tested bogie II, and performs a certain form o...

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Abstract

The invention relates to a railway vehicle bogie hanging natural vibration characteristic detection equipment, in particular to a semi-vehicle mass simulation state based bogie hanging natural vibration characteristic test bed. The test bed is mainly composed of a test bed positioning and auxiliary supporting device, a test bed excitation loading device and a semi-vehicle mass simulation loading device; wherein the test bed positioning and auxiliary supporting device is fixedly connected onto a test bed concrete foundation, the test bed excitation loading device is fixedly connected with a construction member on the test bed positioning and auxiliary supporting device, the semi-vehicle mass simulation loading device is connected with the swing bolster or air spring of a bogie to be testedand is fixedly connected with the construction member on the test bed positioning and auxiliary supporting device, the test bed can utilize a mass block to load the bogie, so as to achieve the aim ofsimulating semi-vehicle mass; and an electro-hydraulic servo system cooperatively controls actuators in different directions, so as to excite the bogie to be tested, thus meeting the requirement of natural vibration frequency test in bogie frame transverse, yawing, nodding and side rolling vibration modes.

Description

technical field [0001] The invention relates to a detection device for the natural vibration characteristic of the bogie suspension of a rail vehicle, in particular to a test bed for the natural vibration characteristic of the bogie suspension based on the semi-car mass simulation state. Background technique [0002] A rail vehicle is a multi-degree-of-freedom system. According to the characteristics of a multi-degree-of-freedom vibration system, the car body and frame as a mass body should have vibration modes and natural vibration frequencies, which are generally called vehicle suspension natural vibration characteristics. According to the suspension degree of freedom of the suspended rigid body, the motions of the rail vehicle body and the bogie frame include: vertical (floating), lateral (swaying), shaking head, nodding and rolling. During the test, the corresponding degrees of freedom are forced to vibrate according to the mode shape to be measured, and the natural freq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M17/10G01H13/00
Inventor 苏建张栋林王金田宫海彬谭富星潘洪达陈熔林慧英戴建国张立斌刘玉梅徐观贾永幸田广东
Owner JILIN UNIV
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