Variable friction viscous fluid mixed damper

Abstract

The invention provides a variable friction viscous fluid mixed damper. The variable friction viscous fluid mixed damper comprises a first connecting lug ring, a second connecting lug ring, a pull rod,two end plates, a friction cylinder, a seal ring arranged in the friction cylinder, a first high-strength elastic device, a second high-strength elastic device, a third high-strength elastic device,multiple connecting plates, multiple connecting rods, a variable friction piston set, an adjusting valve, an oil storage cabin and viscous fluid. Through the technical scheme, different damping forcesare provided for the mixed damper.

Description

Technical field [0001] The invention relates to the technical field of energy consumption and shock absorption control in building structures, in particular to a variable friction viscous fluid hybrid damper. Background technique [0002] The damper is also called a damping device, which can provide movement resistance and reduce movement energy. It is widely used in fields such as high-rise buildings, bridges, and structural seismic reconstruction. At present, the dampers in the field of energy dissipation control technology can be roughly divided into two categories, one is displacement-dependent dampers represented by friction dampers; the other is velocity-dependent dampers represented by viscous fluid dampers Device. The friction damper has the characteristics of long deformation capacity and stable energy consumption, but its damping force is relatively fixed. However, the viscous fluid damper has mass loss due to the viscous fluid during long-term use, so the energy con...

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Problems solved by technology

The friction damper has the characteristics of long deformation capacity and stable energy dissipation capacity, but its damping force is relatively fixed

However, the viscous fluid damper will lose mass due to the viscous fluid during long-term use, so the energy dissipation capacity of the viscous fluid damper is unstable.

In practical engineering applications, we hope that the dampers can exert different damping forces to meet the needs of different earthquake stages, but the existing dampers do not fulfill the above functions well.

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