A multi-layer shear extrusion hybrid giant electrorheological fluid damper

Abstract

The invention discloses a multi-layer shear and extrusion mixed type giant electrorheological fluid damper comprising a positive plate group, a negative plate group, a lower pressing cover, an outer cylinder, an upper pressing cover and an insulated rod. The positive plate group and the negative plate group are staggered and stacked. Intervals are reserved between the positive plate group and thenegative plate group. The negative plate group is fixed through an upper plate fastening piece. The positive plate group is fixed through a lower plate fastening piece. The lower plate fastening pieceis fixedly connected with the lower pressing cover. The outer cylinder is fixedly connected with the lower pressing cover and the upper pressing cover. The upper pressing cover is provided with a liquid inlet hole, a wire hole and a though hole used for vertical movement of the insulated rod. A wire connected with the positive plate group and the negative plate group enters the wire hole. After penetrating through the through hole, the insulated rod is fixedly connected with the upper plate fastening piece. According to the multi-layer shear and extrusion mixed type giant electrorheological fluid damper, through the design of mixing the shear mode and the extrusion mode, the volume and weight of the giant electrorheological fluid damper are reduced, and the damping effect of the giant electrorheological fluid damper is also improved.

Description

technical field [0001] The invention relates to a structure of a giant electrorheological fluid damper, in particular to a multilayer shear extrusion hybrid giant electrorheological fluid damper. Background technique [0002] Giant electrorheological fluid is a suspension formed by polarizable dielectric particles uniformly dispersed in the base fluid of giant electrorheological fluid. When an electric field is applied to it, its properties such as viscosity and shear strength change instantaneously, and its viscosity The size, strength, etc. can be adjusted continuously with the electric field, and the adjustable range is large, even reaching several orders of magnitude. It can be converted from low-viscosity fluid to high-viscosity fluid, or even solid. When the external electric field is removed, it can return to the fluid state within milliseconds. This controllable, reversible and continuous transition between the properties of liquid and solid can realize the controlla...

AI Technical Summary

Problems solved by technology

In practical engineering, electrorheological dampers are usually required to provide greater damping force, which makes electrorheological dampers designed with traditional structures larger in size and mass

In addition, the slip between the electrorheological fluid and the electrode plate of the damper restricts the full performance of the electrorheological variant, resulting in the actual damping force being smaller than the theoretical damping force

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