Self-adaptive inverse vibration isolation control method for super-magnetostrictive vibration isolation platform

A giant magnetostrictive and self-adaptive inverse technology, applied in self-adaptive control, general control system, control/regulating system, etc. Good vibration effect, improve the precision and stability of vibration isolation control, and improve the effect of vibration reduction effect

Inactive Publication Date: 2018-03-16
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method also needs to first compensate the nonlinear part, and then design the linear controller, the whole design process is very complicated
[0013] In addition, the above-mentioned traditional control algorithms such as PID, robustness, etc. are all aimed at controlling linear systems or weakly nonlinear systems, and need to know the accura

Method used

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  • Self-adaptive inverse vibration isolation control method for super-magnetostrictive vibration isolation platform
  • Self-adaptive inverse vibration isolation control method for super-magnetostrictive vibration isolation platform
  • Self-adaptive inverse vibration isolation control method for super-magnetostrictive vibration isolation platform

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Embodiment 1

[0054] Embodiment 1 of the present invention: an adaptive inverse vibration isolation control method for a giant magnetostrictive vibration isolation platform, such as Figure 7 shown, including the following steps:

[0055] S1, estimating the magnitude of the vibration signal of the giant magnetostrictive actuator; specifically, the following steps may be included:

[0056] S11, Establishing the model of the giant magnetostrictive actuator

[0057] S12, the model It is connected in parallel with the giant magnetostrictive actuator, and the output of the giant magnetostrictive actuator is summed with the input vibration signal d, and then the model of the giant magnetostrictive actuator is subtracted The output, that is, the vibration signal of the giant magnetostrictive actuator

[0058] S2, use the Filtered-εLMS adaptive inverse controller to control the giant magnetostrictive actuator to output isolated vibration; specifically include: use the Filtered-εLMS adaptiv...

Embodiment 2

[0075] Embodiment 2: An adaptive inverse vibration isolation control method for a giant magnetostrictive vibration isolation platform, comprising the following steps:

[0076] S1, estimating the magnitude of the vibration signal of the giant magnetostrictive actuator;

[0077] S2, using the Filtered-εLMS adaptive inverse controller to control the output isolation vibration of the giant magnetostrictive actuator.

Embodiment 3

[0078] Embodiment 3: An adaptive inverse vibration isolation control method for a giant magnetostrictive vibration isolation platform, comprising the following steps:

[0079] S1, estimating the magnitude of the vibration signal of the giant magnetostrictive actuator;

[0080] S2, using the Filtered-εLMS adaptive inverse controller to control the output isolation vibration of the giant magnetostrictive actuator.

[0081] Step S1 may include the following steps:

[0082] S11, Establishing the model of the giant magnetostrictive actuator

[0083] S12, the model It is connected in parallel with the giant magnetostrictive actuator, and the output of the giant magnetostrictive actuator is summed with the input vibration signal d, and then the model of the giant magnetostrictive actuator is subtracted The output, that is, the vibration signal of the giant magnetostrictive actuator

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Abstract

The invention discloses a self-adaptive inverse vibration isolation control method for a super-magnetostrictive vibration isolation platform. The self-adaptive inverse vibration isolation control method comprises the following steps that S1, a Filtered-epsilon LMS self-adaptive inverse controller is adopted to control a super-magnetostrictive actuator to output isolation vibration. The method utilizes a nonlinear adaptive filter and adopts the self-adaptive inverse controller adopting Filtered-epsilon LMS algorithm structure design, the size of vibration signals of the super-magnetostrictive actuator is estimated, then the Filtered-epsilon LMS self-adaptive inverse controller is adopted to control the super-magnetostrictive actuator to output isolation vibration, and accordingly the vibration isolation control precision and stability of the super-magnetostrictive vibration isolation platform are improved.

Description

technical field [0001] The invention relates to an adaptive inverse vibration isolation control method for a giant magnetostrictive vibration isolation platform, which belongs to the field of dynamic hysteresis nonlinear system modeling and control. Background technique [0002] Vibration control refers to isolating the vibration of the controlled object through certain technical methods to meet certain engineering requirements. Vibration control is divided into active control and passive control according to whether external input is used in the control process. Among them, passive control is a relatively mature vibration passive control method developed today. It mainly reduces the vibration of the structure by changing the stiffness, damping and mass distribution of the object structure in the system, or changing the transmission path of the external load. response. Active control refers to the use of external energy to exert control force or change the dynamic characte...

Claims

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Application Information

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IPC IPC(8): G05B13/04
CPCG05B13/042
Inventor 张臻马耀鹏杨新宇
Owner BEIHANG UNIV
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