Multi-magnetic-couple magneto-rheological damper with uniformly distributed magnetic flux

Abstract

The invention provides a multi-magnetic-couple magneto-rheological damper with uniformly distributed magnetic flux. The multi-magnetic-couple magneto-rheological damper comprises a cylinder barrel, a piston and a piston rod, wherein the piston comprises an even number of magnetic couple structures, and the even number of magnetic couple structures are evenly distributed in a hollow area of the cylinder barrel in the circumferential direction of a magnetic conductive inner ring; the magnetic conductive inner ring is arranged in the inner circumferential direction of the arrangement of the even number of magnetic couple structures, a magnetic conductive outer ring is arranged in the outer circumferential direction of the arrangement of the even number of magnetic couple structures, and a damping channel is arranged between the inner wall of the cylinder barrel and the magnetic conductive outer ring; the piston rod vertically penetrates through a middle hole of the magnetic conductive inner ring, is parallel to the axial direction of the cylinder barrel and is matched with the magnetic conductive inner ring; the magnetic conductive outer ring is provided with magnetic resistance gaps which are arranged in the circumferential direction, and the magnetic resistance gaps are arranged between the two adjacent magnetic couple structures; and the extension section, arranged on the magnetic conductive outer ring, of each magnetic couple structure forms an extension structure with the gradually-changed sectional area, so that uniform distribution of magnetic flux of the damping channel is achieved. The magnetic lines of force of the damping channel of the multi-magnetic-couple magneto-rheological damper are uniformly distributed.

Description

technical field [0001] The invention relates to the technical field of structural vibration control, in particular to a multi-magnetic couple magnetorheological damper with uniform magnetic flux distribution. Background technique [0002] At present, magnetorheological dampers are widely used in the field of structural vibration control due to their large output value, wide dynamic adjustable range, fast response speed, and good semi-active controllability. With the application of magnetorheological dampers Demand continues to increase, and higher requirements are placed on magnetorheological dampers for miniaturization, light weight, high efficiency, and high damping force. [0003] Traditional magneto-rheological dampers usually design the piston as an I-shaped structure, and a single or multiple sets of excitation coils are wound on the coil slots in the middle area of ​​the piston, so that the magnetorheological fluid undergoes rheology. Since the coil slot occupies mos...

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Problems solved by technology

[0004] The invention provides a multi-magnetic couple magneto-rheological damper with uniform magnetic flux distribution, which is used to solve t

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