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Device and method for vibration detection and control of multi-flexible articulated beams driven by pneumatic artificial muscles

A pneumatic artificial muscle and flexible hinge technology, applied to vibration measurement in solids, measurement devices, and vibration measurement, etc., can solve problems such as small driving displacement, high-frequency noise signals in acceleration signals, and inability to adjust large-scale deformations. , to achieve the effects of fast suppression, high control precision, and no pollution to control precision

Active Publication Date: 2021-12-17
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

However, the measured acceleration signal is likely to contain high-frequency noise signals, so low-pass filtering is required
[0004] The piezoelectric driver has the characteristics of fast response, wide frequency band, good linearity, and easy processing. It is especially suitable for vibration control applications of flexible structures such as flexible beams. However, its driving displacement is small, and it cannot perform large-scale deformation. Adjustment

Method used

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  • Device and method for vibration detection and control of multi-flexible articulated beams driven by pneumatic artificial muscles
  • Device and method for vibration detection and control of multi-flexible articulated beams driven by pneumatic artificial muscles
  • Device and method for vibration detection and control of multi-flexible articulated beams driven by pneumatic artificial muscles

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Embodiment

[0040] Such as figure 1 As shown, a multi-flexible hinged beam vibration detection and control device driven by pneumatic artificial muscles includes a flexible hinged beam body part, a pneumatic artificial muscle part, a vibration signal detection part and a drive control part;

[0041] ——The body part of the flexible hinged beam includes:

[0042] Six flexible beams with exactly the same size and material are respectively the first flexible beam 10, the second flexible beam 12, the third flexible beam 14, the fourth flexible beam 15, the fifth flexible beam 16 and the sixth flexible beam 17. The first flexible beam 10 is fixed with the second flexible beam 12 through the hinge 11 to form the first flexible hinged beam, which is installed in the vertical upward direction, and the third flexible beam 14 is fixed with the fourth flexible beam 15 through the hinge to form the second flexible hinged beam. The beam is installed horizontally to the right, and the fifth flexible be...

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Abstract

The invention discloses a multi-flexible hinged beam vibration detection and control device and method driven by pneumatic artificial muscles, including a flexible hinged beam body part, a pneumatic artificial muscle part, a vibration signal detection part and a drive control part; the flexible hinged beam body part includes three Flexible hinged beam, the flexible hinged beam is connected by two flexible beams through a hinge, one end of the flexible hinged beam is fixed on the turntable driven by the pneumatic artificial muscle by a bracket, and the other end is a free end, the flexible hinged beams are respectively arranged in the vertical upward, Horizontally to the right and vertically downward. The vibration signal of the flexible hinged beam structure is detected by the piezoelectric sensor and the acceleration sensor, and the turntable driven by the pneumatic artificial muscle and the piezoelectric driver are used as the actuators to suppress the vibration. The invention has the characteristics of fast response and air-tightness, and can realize fast and stable detection and active control of the bending vibration of the multi-rotation flexible hinged beam.

Description

technical field [0001] The invention relates to the field of vibration control, in particular to a vibration detection and control device and method for a multi-flexible hinged beam driven by pneumatic artificial muscles. Background technique [0002] The flexible structure has the characteristics of light weight, low energy consumption and flexible operation, and has a wide range of applications in the fields of aerospace engineering and industrial production. However, the flexible structure has low stiffness, high flexibility, and dense low-frequency modes, and it is easy to generate long-term continuous vibration under the action of external disturbance, thus affecting the stability and reliability of the system. Therefore, it is necessary to conduct in-depth research on the vibration detection and active control methods of flexible structures. [0003] Compared with the precise measurement of the velocity signal and displacement signal of a flexible structure, the measu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01H1/12
CPCG01H1/12
Inventor 邱志成陈思文
Owner SOUTH CHINA UNIV OF TECH
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