Three-dimensional tunable local-resonance-type metamaterial magneto-rheological vibration isolating support
A technology of local resonance and vibration isolation bearings, which is applied in the fields of mechanical structures, materials, and electromagnetics, and can solve problems such as vibration isolation bearings that do not use three-dimensional local resonance metamaterials of magnetorheological elastomers.
Active Publication Date: 2017-10-24
GUANGDONG TITAN INTELLIGENT POWER CO LTD
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Problems solved by technology
[0004] There are many kinds of vibration isolation bearings, but there is no vibration isolation bearing of three-dimensional local resonance metamaterials using magnetorheological elastomer as the cladding.
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[0016] Such as figure 1 As shown, the three-dimensional tunable local resonance type metamaterial magnetorheological vibration isolation support provided by this embodiment includes: a magnetic steel frame 10, a magnetic steel plate 20, a soft magnetic material piece 30, and a local resonance type metamaterial module 40. Steel foil 50 and coil 60. The magnetically permeable steel frame 10 has a base 11 and a supporting portion 12 provided on the upper side of the base 11. The magnetically permeable steel plate 20 is set on the top of the supporting portion 12 of the magnetically permeable steel frame through a soft magnetic material 30, and the coil 60 is wound around On the support 12 of the magnetic steel frame 10, the local resonance type metamaterial module 40 is arranged between the base 11 of the magnetic steel frame 10 and the magnetic steel plate 20. The local resonance type metamaterial module 40 is arranged in a matrix A plurality of cubic crystal structure domain re...
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Abstract
The invention discloses a three-dimensional tunable local-resonance-type metamaterial magneto-rheological vibration isolating support which comprises a magnetic conductive steel frame, a magnetic conductive steel plate, a soft magnetic material piece, a local-resonance-type metamaterial module, steel foil and a coil. The magnetic conductive steel frame is provided with a pedestal and a supporting part arranged at one side of the upper portion of the pedestal. The magnetic conductive steel plate is arranged at the top end of the supporting part of the magnetic conductive steel frame through the soft magnetic material piece. The coil is wound on the supporting part. The local-resonance-type metamaterial module is arranged between the pedestal of the magnetic conductive steel frame and the magnetic conductive steel plate. The local-resonance-type metamaterial module is formed by arraying a plurality of cube crystal lattice local-resonance-type metamaterial units in a matrix mode. The steel foil is arranged between layers of the multiple local-resonance-type metamaterial units. The local-resonance-type metamaterial units consist of cube tungsten inner cores, magneto-rheological elastomer envelopes arranged on the peripheries of the tungsten inner cores and epoxy resin matrixes arranged on the peripheries of the magneto-rheological elastomer envelopes. By means of the three-dimensional tunable local-resonance-type metamaterial magneto-rheological vibration isolating support, low and medium frequency band elastic waves can be blocked, and the positions and widths of the frequency bands can be adjusted.
Description
Technical field [0001] The invention relates to the fields of materials, mechanical structures, electromagnetic technology and the like, and in particular to a vibration isolation support used in engineering structures. Background technique [0002] Magnetorheological elastomer is composed of natural rubber or silicone rubber matrix and magnetic particles. Magnetic particles will form a chain-like aggregate structure under the condition of an external magnetic field. Its mechanical properties can be continuously, rapidly and reversibly controlled by an external magnetic field. Effect, its stiffness and damping can be dynamically controlled. Magnetorheological elastomer materials have broad application prospects in aerospace, automotive, vibration control and other fields. [0003] Acoustic metamaterials are new artificial microstructures with sub-wavelength dimensions, which can flexibly control and manipulate the propagation of elastic waves with wavelengths two orders of magnitu...
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IPC IPC(8): F16F7/00F16F1/36
CPCF16F1/361F16F7/00F16F2224/0208F16F2224/025F16F2228/005F16F2228/04F16F2230/32
Inventor 许振龙童杰卜新华黄亮国
Owner GUANGDONG TITAN INTELLIGENT POWER CO LTD
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