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A method for calculating the pressure loss of a parallel-series R-type automobile shock absorber

A calculation method and shock absorber technology, applied in calculation, computer-aided design, instruments, etc., can solve problems such as uncertain control models, no calculation method for shock absorber pressure loss, etc.

Active Publication Date: 2019-01-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] When controlling the resistance of the shock absorber, because there is no better calculation method for the pressure loss of the shock absorber, the control model of the control system has certain limitations. uncertainty

Method used

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  • A method for calculating the pressure loss of a parallel-series R-type automobile shock absorber
  • A method for calculating the pressure loss of a parallel-series R-type automobile shock absorber
  • A method for calculating the pressure loss of a parallel-series R-type automobile shock absorber

Examples

Experimental program
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Embodiment

[0120] Such as figure 1 shown;

[0121] The parallel 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 four capillaries are all of length L R ; they have different diameters, the largest of which is d Rmax . The flow resistances of the capillaries R8, R4, R2, and R1 in the resistance-adjusting section are R fR8 , R fR4 , R fR2 , R fR1 ; the reciprocal of the flow resistance of the four capillaries The ratio is 8:4:2:1.

[0122] The series 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 c...

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Abstract

The invention discloses a method for calculating the pressure loss of a parallel-series R-type automobile shock absorber. In the pipeline between the upper bunker and the lower bunker, a capillary shunt resistance regulating section and a capillary series frequency regulating section are sequentially connected from the top to the bottom. The shunt resistance-regulating section of the capillary tube consists of four capillaries connected in parallel in turn, and the series connection of the capillaries of the resistance-regulating section is provided with an electromagnetic valve to control theoperation of the capillaries. The series frequency modulation section of capillary tube includes four capillaries connected in series in turn. Frequency-modulated capillaries are connected in parallel with solenoid valves to control their operation. The diameter of the smallest capillary tube in the frequency modulation section is twice more than that of the largest capillary tube in the resistance modulation section. The invention provides a method for calculating the pressure loss of an R-type automobile shock absorber, and achieves the purpose of reducing the uncertainty of a control model. The invention provides a theoretical basis for improving the control quality of shock absorber.

Description

technical field [0001] The invention relates to the field of hydraulic automobile shock absorbers, in particular to a method for calculating pressure loss of parallel-series R-type automobile shock absorbers. 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. [0003] figure 1 It is a structural schematic diagram of the existing parallel-series R-type automobile shock absorber. For the working principle of the parallel-series R-type automobile shock absorber, please refer to the patent number ZL 201621442464.9, and the patent name is a matrix parallel-series capillary variable system natural frequency the shock absorber. [0004] The automobile shock absorber comprises a vehicle frame, a spring, an axle, a hydraulic cylinder, an upper oil tank, a piston, a lower oil tank, a resistance adj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20G06F2119/06
Inventor 容强
Owner SOUTH CHINA UNIV OF TECH