Three-dimensional vibration-insulation supporting seat of fiber magnetorheological fluid particles

Abstract

The invention provides a three-dimensional vibration-insulation supporting seat of fiber magnetorheological fluid particles. The three-dimensional vibration-insulation supporting seat comprises an upper connecting plate, a horizontal vibration-insulation supporting seat body, a middle connecting plate and a vertical vibration-insulation supporting seat body; and the vertical vibration-insulation supporting seat body comprises a silicone oil storage chamber, a fiber magnetorheological fluid fine particle layer, a wire ring, a fiber magnetorheological fluid coarse particle layer, a lower connecting plate, a magnetic conductive guiding rod, a permanent magnet and a steel sleeve. The three-dimensional vibration-insulation supporting seat is constituted through series connection of the vertical vibration-insulation supporting seat body on the lower portion of the three-dimensional vibration-insulation supporting seat and the middle connecting plate and has a function that vertical stiffness can be adjusted; by adding fiberglass or carbon fibers in magnetorheological fluid, the compression-resisting strength of the magnetorheological fluid particles can be effectively improved; by installing the magnetorheological fluid fiber particle layers with two particle sizes, the resonance effect possibly caused by vertical stimulation can be avoided; and by exerting electric current in different directions and with different sizes, the a magnetic field generated by the permanent magnet can be strengthened or weakened, and further the adjustable range of stiffness of the magnetorheological fluid particles and the width of the vertical stimulation vibration-insulation frequency are enlarged.

Description

technical field [0001] The invention belongs to the technical field of vibration control of civil and construction engineering, and in particular relates to a three-dimensional shock-isolation bearing of fiber magnetorheological particles. Background technique [0002] Magnetorheological materials are a class of smart materials with controllable rheological properties. Under the action of an external magnetic field, their rheological properties can undergo continuous, rapid and reversible changes, so they have been widely used in the fields of aerospace, automobiles and building structures. Applications. As a new branch of magnetorheological materials, magnetorheological elastomers are solidified by polymers such as rubber and ferromagnetic particles under the action of an external magnetic field. They have the advantages of both magnetorheological materials and elastomers, and at the same time It can overcome the settlement and stability problems of the magnetorheological ...

AI Technical Summary

Problems solved by technology

Although scholars at home and abroad have proposed a variety of seismic isolation devices, these devices have some defects and are rarely used in vertical seismic isolation of actual engineering structures.

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