Anti-corrosion and high-flux double-liquid damper

Abstract

The invention provides an anti-corrosion and high-flux double-liquid damper. The anti-corrosion and high-flux double-liquid damper comprises an outer sleeve and two symmetric damping structures; eachdamping structure comprises a magnetorheological fluid cylinder, a shear thickening fluid cylinder and a core column; the shear thickening fluid cylinders are coaxial with the outer sleeve, and axes of the magnetorheological fluid cylinders and the outer sleeve are parallel; the big end of each core column is arranged in the corresponding shear thickening fluid cylinder, and the small end extendsout of the top of the outer sleeve; the three magnetorheological fluid cylinders are arranged in the same plane and located at three vertices of an equilateral triangle respectively, and the adjacentmagnetorheological fluid cylinders are connected through a first connecting part; the bottoms of the shear thickening fluid cylinders are connected with the tops of the three magnetorheological fluidcylinders through second springs and second connecting parts; the two symmetric damping structures are connected through first springs; the core column of one damping structure extends out of the topof the outer sleeve and is fixed with the outer sleeve; and a magnet exciting coil is arranged on the inner wall of each magnetorheological fluid cylinder. The damper has a good damping effect, can beeffectively resistant to wear and corrosion, can realize automatic restoration and has a wider applicable load range.

Description

technical field [0001] The invention belongs to the technical field of engineering structure vibration control, and relates to a corrosion-resistant high-flux double-liquid damper. Background technique [0002] Shock and vibration are relatively common natural phenomena, which widely exist in industrial production and mechanical equipment. In order to avoid the interference and damage caused by it, the energy absorption and dissipation of shock and vibration are paid more attention. Magneto-rheological fluid is a smart material with excellent performance. When it receives a magnetic field, the magnetic particles in it are arranged in a chain along the direction of the magnetic field and become a Bingham solid plastic. The apparent viscosity increases. Once the magnetic field is removed, the fluid Returning to the original Newtonian fluid state with good fluidity, its response time is only a few milliseconds. This continuous, reversible, rapid and easy-to-control change in v...

AI Technical Summary

Problems solved by technology

The shear thickening fluid damper is to use the shear thickening characteristics of the shear thickening fluid to protect the main structure against the impact load response. However, the damping force and stiffness of the shear thickening fluid damper are due to the shear The thickener does not undergo shear thickening behavior, so its control effect is not ideal

In addition, most of the dampers after experiencing strong vibration are damaged to varying degrees. Because the damage is irreversible or because the installation and disassembly are complicated, a lot of energy and financial resources are spent.

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