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A parallel-series capillary variable system natural frequency automobile shock absorber operating method

A technology of natural frequency and operation method, applied in the direction of shock absorber, liquid shock absorber, shock absorber, etc., can solve the problems of non-adjustable natural frequency and small adjustable range, and achieve simple and easy technical means and low cost , the effect of improving quality

Active Publication Date: 2019-01-15
SOUTH CHINA UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The system natural frequency of the hydraulic shock absorber is an important performance index of the automobile shock absorber. A disadvantage of the current performance of the hydraulic shock absorber is that the system natural frequency of the shock absorber cannot be adjusted or the adjustable range is very small

Method used

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  • A parallel-series capillary variable system natural frequency automobile shock absorber operating method
  • A parallel-series capillary variable system natural frequency automobile shock absorber operating method
  • A parallel-series capillary variable system natural frequency automobile shock absorber operating method

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Experimental program
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Embodiment

[0045] figure 1 , figure 2 See the background technology section for related content.

[0046] Such as image 3 shown. The resistance adjustment section includes four capillaries, which are R8, R4, R2, and R1; they are equal in length and connected in series with the solenoid valve V R8 , V R4 , V R2 , V R1 control its work. The ratio of the cross-sectional areas of these four capillaries is 8:4:2:1; their lengths are all L R .

[0047] The frequency modulation section includes four capillaries, which are m8, m4, m2, and m1; they have the same cross-sectional area and are connected in parallel with the solenoid valve V m8 , V m4 , V m2 , V m1 Control its work; the ratio of the lengths of these four capillaries is 8:4:2:1. In the present embodiment, the length L of the shortest capillary m1 among the four capillaries m1 Equal to the length L of the capillary in the resistance adjustment section R half of. The diameter d of these four capillaries m Equal to 4 t...

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Abstract

The invention discloses a parallel-serial capillary tube varying system inherent frequency vehicle shock absorber running method. A capillary tube parallel damping association segment and a capillary tube serial system inherent frequency association segment are sequentially connected to a pipeline between an upper oil bin oil conveying opening and a lower oil bin oil conveying opening from top to bottom; the capillary tube parallel damping association segment comprises four parallel capillary tubes, and each capillary tube is in serial connection with an electromagnetic valve and controls the electromagnetic valve to work; the capillary tube serial system inherent frequency association segment comprises four serial capillary tubes; the four capillary tubes are all in parallel connection with an electromagnetic valve and controls the valve to work. The diameter of the minimum capillary tube of the frequency adjusting segment is far larger than the diameter of the capillary tube of the resistance adjusting segment; in the matrix type work state table, according to the condition, the configuration value Smn of the electromagnetic valve in the frequency adjusting segment is selected, and through the manner of changing the mass, the problem that the inherent frequency of an automobile hydraulic shock absorber system cannot be adjusted or the adjustable range is very small is solved.

Description

technical field [0001] The invention relates to the field of hydraulic automobile shock absorbers, in particular to a method for operating the natural frequency automobile shock absorber of a parallel-series capillary variable system. Background technique [0002] The vibration reduction methods of automobiles mainly include hydraulic type, pneumatic type and electromagnetic type. The hydraulic type is currently the most widely used vehicle vibration reduction method. The system natural frequency of the hydraulic shock absorber is an important performance index of the automobile shock absorber. A disadvantage of the current hydraulic shock absorber performance is that the system natural frequency of the shock absorber cannot be adjusted or the adjustable range is very small. [0003] The quality of the natural frequency of the hydraulic vehicle shock absorber system will directly affect the vibration amplitude, comfort and ride comfort of the vehicle. [0004] It is well k...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/34F16F9/44F16F9/14
CPCF16F9/14F16F9/34F16F9/44
Inventor 容强
Owner SOUTH CHINA UNIV OF TECH
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