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, measuring devices, etc., can solve the problems of mode shape and frequency research, and the natural vibration characteristics of bogies can not be solved, so as to achieve accurate detection and shorten the research and development cycle time, save test time and cost

Inactive Publication Date: 2011-04-06
JILIN UNIV
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Problems solved by technology

However, the currently developed bogie parameter determination test bench can only measure the bogie suspension parameters

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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Example Embodiment

[0053] The above objectives of the present invention are achieved through the following technical solutions, which are described as follows with reference to the drawings.

[0054] Refer to figure 1 , 2 , 3, 4, 5, a test bed for bogie suspension self-vibration characteristics based on the half-car mass simulation state, the test bed includes test bed positioning and auxiliary support device A, test bed excitation loading device B and half car mass Simulation loading device C. The test bench positioning and auxiliary support device A is fixedly connected to the test bench concrete foundation III, which provides installation and fixed positions for the test bench positioning, loading and auxiliary devices, and provides counter-force support for the various actuators; test bench excitation loading device B It is fixedly connected with the components of the test bench positioning and auxiliary support device A, and the tested bogie II is fixed and restrained, and a certain form of ex...

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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 tested and 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 of simulating 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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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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