Test bench for suspension self-vibration property of steering frame of railway vehicle based on sine frequency sweeping method

A rail vehicle, sine frequency sweep technology, used in vehicle testing, vibration testing, machine/structural component testing, etc., can solve the problem of rail vehicle bogie suspension self-vibration characteristics without special equipment or instruments, and achieve shortened Research and development cycle, accurate detection, and the effect of being conducive to the development of society

Inactive Publication Date: 2011-05-04
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 2. Domestic bogie parameter test bench situation
[0011] At present, there is no special equipment or instrument for testing the natural vibration characteristics of rail vehicle bogie suspension based on the sine sweep method

Method used

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  • Test bench for suspension self-vibration property of steering frame of railway vehicle based on sine frequency sweeping method
  • Test bench for suspension self-vibration property of steering frame of railway vehicle based on sine frequency sweeping method
  • Test bench for suspension self-vibration property of steering frame of railway vehicle based on sine frequency sweeping method

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Embodiment Construction

[0050] The specific content and working process of the present invention will be described in further detail below in conjunction with the embodiment shown in the accompanying drawings.

[0051] refer to figure 1 , 2 , 3, 4, 5, 6, a rail vehicle bogie suspension natural vibration characteristic test bench related to the present invention is mainly composed of cast iron platform assembly A, excitation beam assembly B, transverse actuator support beam C, vehicle Body longitudinal fixing seat assembly D and boarding rail assembly E. Among them, cast iron platform assembly A mainly includes cast iron platform 1, ground anchor net 2; excitation beam assembly B includes excitation beam 3, vertical actuator 4, lateral actuator 5, movable rail U-shaped clamp 6. The longitudinal connecting rod assembly 7 of the excitation beam, wherein the vertical actuator 4 is fixedly connected with the cast iron platform assembly A through bolts; ) in the iron plate; the car body longitudinal fix...

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Abstract

The invention relates to a test bench for suspension self-vibration property of a steering frame of a railway vehicle based on a sine frequency sweeping method. The device is designed for meeting the need of detecting the suspension dynamic property of the steering frame of the railway vehicle. The test bench mainly comprises a cast iron platform assembly, an excitation cross beam assembly, a transverse actuator supporting cross beam, a vehicle body longitudinal fixed seat assembly and an upper vehicle rail assembly, wherein the cast iron platform assembly mainly comprises a cast iron platform and a ground anchor device net; the excitation cross beam assembly comprises an excitation cross beam, a vertical actuator, a transverse actuator, a U-shaped blocking clamp of a movable rail and an excitation cross beam longitudinal connecting rod assembly; the transverse actuator supporting cross beam is fixed on an iron plate which is pre-embedded in a foundation of the test bench through a bolt; the vehicle body longitudinal fixed seat assembly comprises a vehicle body longitudinal supporting counterforce support, a ground rail, a vehicle body connecting flange and a vehicle body connecting rod; and the upper vehicle rail assembly comprises an upper vehicle inlet section rail assembly and an upper vehicle intermediate section rail assembly.

Description

technical field [0001] The invention relates to a detection device for dynamic characteristics of rail vehicle bogie suspension, in particular to a rail vehicle bogie suspension natural vibration characteristic test bed based on a sinusoidal frequency sweep method. 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 suspension natural vibration characteristics. According to the motion degrees of freedom of the car body and frame, the corresponding natural vibration frequencies can be measured by forcing the corresponding degrees of freedom to vibrate. According to the different excitation signals, the methods for measuring the natural vibration frequency of the suspension of rolling stock can be divided into sine frequency sweep method, step...

Claims

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Application Information

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IPC IPC(8): G01M7/06G01H17/00G01M17/007
Inventor 苏建宫海彬刘晓录张栋林张立斌潘洪达刘玉梅陈熔贾永幸林慧英徐观戴建国
Owner JILIN UNIV
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