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Compression-shear mixed multi-layer magnetorheological elastomer shock absorber

A technology of magnetorheological elastomers and shock absorbers, applied in the direction of springs/shock absorbers, springs, low internal friction springs, etc., can solve the problems of small adjustment range and low longitudinal rigidity, etc. Stiffness, the effect of enhancing the vibration damping effect

Inactive Publication Date: 2017-01-11
OCEAN UNIV OF CHINA
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Problems solved by technology

[0004] Aiming at the problems of small adjustment range and low longitudinal stiffness of current magnetorheological elastomer intelligent shock absorbers, the present invention proposes a compression-shear hybrid multilayer magnetorheological elastomer shock absorber

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  • Compression-shear mixed multi-layer magnetorheological elastomer shock absorber

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specific Embodiment approach

[0020] like figure 1 As shown, the compression-shear hybrid multilayer magnetorheological elastomer shock absorber includes a magnetic permeable cylinder 2 installed on the base 1, a piston 3 installed in the magnetic permeable cylinder 2, and a mounting seat 4 installed on the base 1 Excitation coil 5 on the outer wall. The base 1, the magnetic tube 2 and the piston 3 are all made of alloy steel or other high-strength and high-permeability materials.

[0021] The shock absorber further includes a magneto-rheological elastomer, which includes a first shear-type magneto-rheological elastomer 6 and a compression-type second magnetorheological elastomer 7 . The first magnetorheological elastomer 6 is glued between the piston 3 and the magnetic permeable cylinder 2 . A vibration-damping layer structure 8 is installed between the mounting base 4 and the piston 3, and the vibration-damping layer structure 8 includes a stacked second magnetorheological elastomer 7 and a magnetic gu...

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Abstract

A compression-shear mixed multi-layer magnetorheological elastomer shock absorber comprises a magnetic conductive tube mounted on a base, a piston mounted in the magnetic conductive tube, a magnet exciting coil mounted on the outer wall of a mounting seat arranged on the base as well as magnetorheological elastomers, wherein the magnetorheological elastomers comprise a shear type first magnetorheological elastomer and compression type second magnetorheological elastomers; the first magnetorheological elastomer is mounted between the piston and the magnetic conductive tube; a shock absorbing layer structure is mounted between the mounting seat and the piston and comprises the second magnetorheological elastomers and magnetic conductive plates, and the second magnetorheological elastomers and the magnetic conductive plates are arranged alternately. According to the compression-shear mixed multi-layer magnetorheological elastomer shock absorber, under joint action of the shear type magnetorheological elastomer and the compression type magnetorheological elastomers, the adjusting ranges of the rigidity and damping of the shock absorber are increased, the shock absorbing effect is enhanced, and the shock absorber can attenuate vibration load of different frequency and amplitudes.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery and relates to a shock absorber, in particular to a multilayer magnetorheological elastomer intelligent shock absorber based on a compression-shear hybrid mode. Background technique [0002] Offshore platforms are large structures for offshore oil exploitation, processing, and transportation. During their service, they are excited by environmental loads such as waves, sea winds, and ocean currents, and are in a state of forced vibration for a long time. With the increase of the application water depth of the platform, the structural size increases, the overall stiffness decreases, and the dynamic response of the platform increases. The continuous vibration of the platform may cause fatigue damage and damage, reduce the service life, and affect the working comfort of offshore operators and reduce work efficiency. Therefore, it is of great engineering significance to effectively suppr...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/36
CPCF16F1/361
Inventor 冷鼎鑫武桐桐刘贵杰
Owner OCEAN UNIV OF CHINA
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