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Device and method for realizing desired damping force of magnetorheological damper

A magnetorheological damper and damping force technology, applied in springs/shock absorbers, vibration suppression adjustment, mechanical equipment, etc., can solve the problems of low control accuracy and inability to accurately describe the dynamic behavior of magnetorheological dampers, etc. Achieve low cost and improve the effect of open-loop control

Active Publication Date: 2022-07-19
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dynamic inverse model of the magnetorheological damper commonly used in open-loop control usually cannot accurately describe the dynamic behavior of the magnetorheological damper at different frequencies, so that the control accuracy is low

Method used

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  • Device and method for realizing desired damping force of magnetorheological damper
  • Device and method for realizing desired damping force of magnetorheological damper
  • Device and method for realizing desired damping force of magnetorheological damper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] see Figure 1 to Figure 3 , the realization device of the desired damping force of the magnetorheological damper, including the mounting bracket, the damper 1 and the control unit.

[0074] The damper 1 applies a damping force to the actuating head 22 .

[0075] The damper 1 is a magnetorheological damper.

[0076] The mounting bracket includes a frame, a mounting base 21 , an actuating head 22 , an excitation platform 23 , a fixing bracket 24 , a swing arm 25 , a connecting rod 26 and a fixing member 27 .

[0077] The frame is carried on the excitation platform 23 .

[0078] The piston rod of the damper 1 is fixed on the top of the frame.

[0079] The frame includes beams 281 and two uprights 282 .

[0080] One ends of the two uprights 282 are respectively fixed on the excitation platform 23 , and the other ends are fixedly connected through the beam 281 .

[0081] One of the uprights 282 is fixedly connected to the fixing bracket 24 .

[0082] The mounting base ...

Embodiment 2

[0126] A device for realizing the desired damping force of a magnetorheological damper, including a mounting bracket, a damper 1 and a control unit;

[0127] The damper 1 applies a damping force to the actuating head 22;

[0128] The mounting bracket includes a frame, a mounting base 21, an actuating head 22, an excitation platform 23, a fixing bracket 24, a swing arm 25, a connecting rod 26 and a fixing piece 27;

[0129] The frame is mounted on the excitation platform 23;

[0130] The top of the frame fixes the piston rod of the damper 1;

[0131] The mounting base 21 fixes the piston cylinder of the damper 1;

[0132] The mounting base 21 is fixed on the actuating head 22;

[0133] The actuating head 22 is mounted on the excitation platform 23;

[0134] The vibration of the actuating head 22 can be analogous to the excitation from the road surface received by the suspension damper of the automobile;

[0135] The excitation platform 23 applies external excitation to the...

Embodiment 3

[0149] The device for realizing the desired damping force of the magnetorheological damper, the main structure is shown in Embodiment 2, wherein the current driver 35 is a three-polarity full-bridge current driver.

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PUM

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Abstract

The invention discloses a device and a method for realizing the desired damping force of a magnetorheological damper. The device comprises a mounting bracket, a damper (1) and a control unit; the method steps are: 1) Calculate a desired output current value I. 2) The microcontroller sends a control signal to the current driver according to the desired current value I. After receiving the control signal, the current driver outputs current to the coil of the damper, so that the current value of the damper coil is equal to the desired current value I, so that the damper outputs the desired damping force F to the actuating head. According to the motion state of the magnetorheological damper and the desired damping force, the present invention can deliver an appropriate current to the coil of the magnetorheological damper, so as to realize the function of following the actual damping force to the desired damping force.

Description

technical field [0001] The invention relates to the control field of a magnetorheological damper, in particular to a device and method for realizing the desired damping force of the magnetorheological damper. Background technique [0002] As an intelligent actuator, magnetorheological dampers have received extensive attention in the fields of automobiles and buildings. The control process of a magnetorheological damper is usually to obtain the desired damping force through a function-oriented control algorithm according to the motion state of the damper, and then use an open-loop or closed-loop control method to achieve the desired damping force. It can be seen that achieving the desired damping force is a key part of the control of the magnetorheological damper. In terms of control methods, open-loop control is gradually being used more and more because of its certain cost advantages. However, the dynamic inverse model of the magnetorheological damper that is commonly use...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/027F16F15/023
CPCF16F15/027F16F15/023
Inventor 张志飞鲁红伟徐中明
Owner CHONGQING UNIV