Double-moving endurance experiment apparatus of vibration damper

A technology of durability test and shock absorber, which is applied in the direction of vibration test, measuring device, machine/structural component test, etc., and can solve problems such as large vibration, poor response of belt drive, and large noise

Inactive Publication Date: 2009-04-08
CHERY AUTOMOBILE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The test bench can only achieve single-action durability test, the belt drive has poor response, low control precision, and high noise, especially the noise of the slider pair can reach more than 85dBA, and it is inconvenient to adjust the stroke, and the vibration is particularly large

Method used

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  • Double-moving endurance experiment apparatus of vibration damper
  • Double-moving endurance experiment apparatus of vibration damper
  • Double-moving endurance experiment apparatus of vibration damper

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0020] Such as figure 1 , 2 As shown, a shock absorber double-action durability test device includes a commercially available hydraulic servo actuator 2, a hydraulic servo controller, and an experimental support; the hydraulic servo controller includes a sine wave for two different frequencies and amplitudes The system is controlled by superimposed waves, the hydraulic servo controller is electrically connected to the hydraulic servo actuator 2, the experimental support includes a gantry 1, and the hydraulic servo actuator 2 is fixed on the beam 11 of the gantry 1 , the hydraulic cylinder of the hydraulic servo actuator 2 is downward, the power output shaft 13 is fixed to the upper end of the shock absorber 3 under test, and the shock absorber 3 under test is fixed under the gantry 1.

[0021] In the double-action durability test device of the shock absorber, the experimental support also includes an upper connecting plate 10, which is fixed on the power output shaft 13 of th...

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PUM

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Abstract

The invention discloses a vehicle shock-absorber double-acting endurance test apparatus, comprising a hydraulic servo actuator, a hydraulic servo controller and a test bracket. The hydraulic servo controller comprises a system controlling a waveform formed by folding two sine waves with the different frequencies and swings; the hydraulic servo controller is connected with the hydraulic servo actuator; the test bracket comprises a gantry and the hydraulic servo actuator is fixed on a beam of the gantry; and the hydraulic cylinder of the hydraulic servo actuator is arranged downward and a power output shaft is fixed with the upper end of the shock-absorber to be tested and the lower end of the tested shock-absorber is fixed under the gantry. The invention can respectively brings an action with different frequencies and swings to the upper and lower ends of the shock-absorber to respectively simulate the movement of wheels and vehicle body; and the control precision is high and the noise is lower.

Description

technical field [0001] The invention belongs to a kind of vibration test device, which is used for testing the shock absorber on the automobile suspension, in particular to a double-action durability test device which respectively applies an action of different frequency and amplitude to the upper and lower ends of the automobile shock absorber . Background technique [0002] The shock absorber is one of the important parts of the automobile suspension, and its durability must be verified during the vehicle development process. According to the domestic shock absorber industry standard QC / T 545-1999, there are two types of shock absorber durability tests: One is the single-action method, that is, the action is performed at a single frequency and a single amplitude. This method will be eliminated in the new national standard for shock absorbers. The other is the double-action method, that is, the upper and lower ends of the shock absorber are respectively applied. An action ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/04G01M7/02
Inventor 杜兵强军林腾海杰
Owner CHERY AUTOMOBILE CO LTD
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