Intelligent self-adaptive vibration absorber, array integrating device and application of intelligent self-adaptive vibration absorber

A self-adaptive, shock absorber technology, applied in the direction of shock absorber, vibration suppression adjustment, shock absorber, etc., can solve the problems that cannot be solved, and can not solve the corresponding adjustment of the most frequency of the shock absorber, so as to achieve precise control and adjustment The effect of precision and high power generation efficiency

Active Publication Date: 2015-07-29
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the adjustment method cannot be adjusted online when the controlled object is working, and the structure is fixed after each adjustment, so the natural frequency is determined, and it still cannot solve the most effective vibration absorber under the condition that the controlled object frequency changes with time. Corresponding adjustment of frequency
In addition, the current technology cannot solve the problem of dense frequency and multi-frequency characteristic vibration suppression.

Method used

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  • Intelligent self-adaptive vibration absorber, array integrating device and application of intelligent self-adaptive vibration absorber
  • Intelligent self-adaptive vibration absorber, array integrating device and application of intelligent self-adaptive vibration absorber
  • Intelligent self-adaptive vibration absorber, array integrating device and application of intelligent self-adaptive vibration absorber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] This embodiment provides an intelligent adaptive shock absorber, such as figure 1 As shown, including: driving body, mass body and elastic beam; where:

[0079] The driving body is arranged at one end of the elastic beam;

[0080] The mass body is movably arranged on the elastic beam, and automatically reciprocates along the elastic beam under the driving force of the driving body; when the mass body moves to a position in a resonance state with the controlled object, the mass body is elastically The position on the beam is fixed automatically.

[0081] The natural frequency expression of the intelligent adaptive vibration absorber is Wherein, K is the stiffness coefficient of elastic beam, and described M is the quality of mass body;

[0082] The expression of the stiffness coefficient K of the elastic beam is: K=3EI / L 3 , where, I is the second moment of section, E is the elastic modulus, and L is the length of the cantilever beam formed by the mass body on the e...

Embodiment 2

[0094] Embodiment 2 is a variation example of embodiment 1, such as figure 1 As shown, in this embodiment, on the basis of Embodiment 1, the intelligent adaptive shock absorber further includes a terminal limit sensor device, and the terminal limit sensor device is arranged at the other end of the elastic beam.

[0095] Further, the terminal limit sensor device includes a fixed permanent magnet and an excitation coil, the fixed permanent magnet is arranged on the elastic beam, and an excitation field can be formed between the excitation coil and the fixed permanent magnet.

[0096]When the mass body and the controlled object are in the resonance state, the current intensity generated by the excitation coil is the largest, and the resonance state is self-sensed through the current intensity.

[0097] The terminal limit sensor device is arranged in the frame body.

Embodiment 3

[0099] Embodiment 3 is a variation example of embodiment 2, such as figure 1 As shown, in this embodiment, on the basis of Embodiment 2, the intelligent adaptive vibration absorber also includes a piezoelectric sensor device, and the piezoelectric sensor device includes a ferromagnet, a magnetostrictive body, a magnetizer and a piezoelectric body, The ferromagnet is arranged outside the fixed permanent magnet, a closed magnetic circuit is formed between the ferromagnetic body and the magnetoconductor, the magnetostrictive body is located in the closed magnetic circuit, and the piezoelectric body is in contact with the magnetostrictive body , and generate electrical signals under the stretching force of the magnetostrictive body;

[0100] When the mass body and the controlled object are in a resonance state, the electric signal strength is the largest, and the resonance state is self-sensed through the electric signal strength.

[0101] The piezoelectric sensor device is arran...

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Abstract

The invention provides an intelligent self-adaptive vibration absorber. The intelligent self-adaptive vibration absorber comprises a driving body, a mass body, an elastic beam, a terminal limiting sensor and a piezoelectric sensor device, wherein the driving body is arranged at one end of the elastic beam; the mass body is movably arranged on the elastic beam, and moves in a reciprocating way along the elastic beam under the driving force of the driving body; the terminal limiting sensor and the piezoelectric sensor device are arranged on the end part of the other end of the elastic beam; self-adaptive control of the inherent frequency of the vibration absorber is realized through adjustment of the length of a cantilever beam formed on the elastic beam by the mass body. Meanwhile, the invention provides an array integrating device based on the intelligent self-adaptive vibration absorber and application of the intelligent self-adaptive vibration absorber. The intelligent self-adaptive vibration absorber is simple in structure, and is suitable for multi-field popularization; precision suppression of single vibration of a controlled object can be realized, precision suppression control can be performed on multi-frequency laminated vibration of the controlled object, and inertial driving and power generation application are realized through structural specificity.

Description

technical field [0001] The present invention relates to an active vibration control device in the technical field of active vibration absorbers, in particular to an intelligent self-adaptive vibration absorber and an array integration device that can be adaptively adjusted according to the vibration source strength and vibration source orientation for optimal effect vibration suppression and its application. Background technique [0002] Vibration is a common problem in the field of precision engineering, and the research on vibration reduction and isolation theory, technology and devices is also very extensive. Because the dynamic vibration absorber can realize the vibration control effect through surface adsorption without affecting any structure of the main vibrating body (controlled object), the structure design is simple, and the installation and use are very convenient, so it has been widely valued. However, when the design structure of the dynamic vibration absorber ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/03
CPCF16F7/1011F16F15/002F16F15/005
Inventor 杨斌堂
Owner SHANGHAI JIAO TONG UNIV
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