Compound structure formed by implementing magnet exciting coil in magnetorheological elastomer

A magnetorheological elastomer and excitation coil technology, applied in the field of magnetorheological materials, can solve the problems of reducing the magnetorheological effect of magnetorheological elastomers, bulky structure, and reduced magnetic induction intensity, and achieve simple structure and low production cost Low, high shear modulus effect

Inactive Publication Date: 2009-12-30
CHONGQING UNIV
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, although new manufacturing methods have been proposed, the developed magnetorheological elastomers still have problems of insufficient mechanical properties and insufficient magnetotropic effects, which restrict the design and application of magnetorheological elastomer-based devices.
In the application process of magnetorheological elastomers, in addition to the problems of the material itself, there are also low application efficiency of the applied magnetic field, poor ability of magnetic field strength to penetrate the elastomer, and bulky structure; and there is an angle between the magnetorheological elastomer and the magnetic field when deformation occurs. , resulting in a smaller magnetic induction intensity, thereby reducing the magnetorheological effect of magnetorheological elastomers and other issues

Method used

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  • Compound structure formed by implementing magnet exciting coil in magnetorheological elastomer
  • Compound structure formed by implementing magnet exciting coil in magnetorheological elastomer

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Embodiment Construction

[0014] First, fix the excitation coil 3 in the mold, and mix the liquid polymer and ferromagnetic particles uniformly; then inject the mixture into the mold, and the ferromagnetic particles will be randomly distributed; finally, add permanent magnets to the structure. The constant magnetic field generated by the magnet 4 causes it to slowly solidify at a certain temperature. At this time, the magnetic field will cause the ferromagnetic particles to form complex structures such as chains. During the solidification process, the excitation coil 3 will interact with the base material and chain magnetic particles. The structure is tightly combined and remains unchanged after curing. The excitation coil 3 is integrally compounded inside the magnetorheological elastomer 2 material, and the excitation coil energization joint 1 is left, the structure is as figure 1 Shown.

[0015] During production, it is best to arrange the excitation coil 3 in the middle position of the magnetorheologica...

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Abstract

The invention provides a compound structure formed by implementing a magnet exciting coil in a magnetorheological elastomer. The structure mainly comprises the magnetorheological elastomer and the magnet exciting coil, wherein the magnet exciting coil is implemented in the magnetorheological elastomer; the magnet exciting coil is fixed in a mould when the magnetorheological elastomer is produced, uniformly mixed raw materials of the magnetorheological elastomer are injected into the mould, the raw materials of the magnetorheological elastomer, under the action of an external magnetic field, are slowly solidified, the magnet exciting coil is integrally compounded in the materials of the magnetorheological elastomer, and the electrification head of the magnet exciting coil is kept out. The structure has the technical scheme that under the circumstance of electrification, a conductive coil can generate a magnetic field in the coil due to the electromagnetic induction effect, and corresponding magnetic lines of force of the magnetic field respectively penetrate through the magnetorheological elastomer; and by constantly changing exciting currents in the coil, the magnetic-induced shear modulus of the elastomer can be controlled, and a magnetorheological elastomer actuator can be regulated, thereby eliminating various shocks and vibrations during the implementation of projects.

Description

Technical field [0001] The invention belongs to the technical field of magnetorheological materials, and specifically relates to a composite structure of magnetorheological elastomer implanted with an excitation coil. Background technique [0002] Magnetorheological elastomers are a new branch of magnetorheological materials, which have broad application prospects in aerospace, automobiles, ships, vibration control and other fields. Magnetorheological elastomers have both the advantages of magnetorheological materials and elastomers, and overcome the disadvantages of magnetorheological fluid settlement and poor stability. Therefore, magnetorheological materials have become a hot spot in recent years. However, although new manufacturing methods have been proposed, the developed magnetorheological elastomers still have insufficient mechanical properties and insufficient magneto-induced effects, which restrict the design and application of magnetorheological elastomer-based devices....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F1/44H01F1/28H01F13/00F16F9/53
Inventor 余淼王四棋董小闵李敏
Owner CHONGQING UNIV
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