Anti-settling multilayer spiral pole plate damper based on giant electrorheological fluid

Abstract

The invention discloses an anti-settling multilayer spiral pole plate damper based on giant electrorheological fluid, and relates to the technical field of dampers. The damper comprises an outer cylinder, an upper end cover is arranged at the upper end of the outer cylinder, a lower end cover is arranged at the lower end of the outer cylinder, a floating piston connected to the outer cylinder in a sliding mode is arranged in the outer cylinder, a compensation cavity between the floating piston and the lower end cover is filled with compressed air, a working cavity between the upper end cover and the floating piston is filled with the giant electrorheological fluid, a spindle structure is arranged in the outer cylinder, penetrates through the upper end cover and can slide relative to the upper end cover, a plurality of spiral blade pole plates and a plurality of electrode plates are arranged on the spindle structure in the circumferential direction, each spiral blade pole plate is connected to one electrode plate, and an anti-settling structure is arranged at the lower end of the spindle structure. The damper has the advantages of being simple in structure, high in response speed, light in weight, small in size, large in damping force and capable of automatically preventing settling.

Description

technical field [0001] The invention relates to the technical field of dampers, in particular to an anti-subsidence multilayer spiral plate damper based on giant electrorheological fluid. Background technique [0002] Electrorheological fluid is a suspension system composed of micro-nano particles with high dielectric constant and low conductivity dispersed in an insulating base fluid. It is an electrically responsive soft material. Under the action of an external electric field, the solid particles can be polarized and interact in a millisecond instant, forming a chain or columnar structure parallel to the electric field, so that the liquid behaves as a solid-like constitutive state with a certain yield stress, making the surface The apparent viscosity increases by several orders of magnitude. This effect of causing a fluid to change state is called the electrorheological effect. Giant electrorheological fluid is a major breakthrough in the development of electrorheologic...

AI Technical Summary

Problems solved by technology

The traditional passive control damper can only provide non-adjustable damping force, and its vibration control effect is not ideal

However, the existing new active / semi-active control dampers still have problems such as small yield stress or limited working stroke.

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