Nonlinear mixed rotary energy dissipation damper

Abstract

The invention relates to a nonlinear mixed rotary energy dissipation damper which comprises a venting hole, a damper shell, a horizontal connecting rod, a sealing ring, an annular rotary bearing, rotary steel plates, damping liquid, damping particles, a sleeve, a rotary thread, nonlinear spring dampers and a guide rail. Under the action of the rotary thread, the sleeve rotates around the sleeve axis, the rotary steel plates stir the viscous liquid and the damping particles in the damper, and damping force is provided. Under the action of an earthquake, the horizontal displacement is restrained through nonlinear springs or variable-friction dampers, the viscous liquid and the particles are placed in a container to serve as a main component of the damper, energy is dissipated under the driving of the rotary steel plates, and the energy dissipation efficiency is improved. The liquid serves as a filling substance, the noise generated by collisions between particles and the inner wall of an original particle damper can be better reduced, and meanwhile, the problems that as for the traditional particle damper, the particles in the particle damper are stacked together, so that the motion capacity of the particles is limited, most collisions between the particles and a cavity are elastic collisions, and the collision energy dissipation capacity is limited are solved to a certain extent.

Description

technical field [0001] The invention designs a nonlinear hybrid rotary energy consumption damper. The invention belongs to the technical field of anti-seismic and vibration reduction in structural engineering. Background technique [0002] A damper is a device that provides resistance to movement and consumes movement energy. In the 20th century, especially in the past 20 or 30 years, people have made great efforts to improve the anti-vibration ability of buildings, and achieved remarkable results. The most proud of this achievement is the "structural protection system". People jump out of the traditional concept of strengthening the vibration resistance of beams, columns and walls, combined with the dynamic performance of the structure, and cleverly avoid or reduce the damage of earthquake and wind by means of dampers. Base isolation, various energy-absorbing and energy-dissipating systems using dampers, mass resonance damping systems on the roof of high-rise buildings a...

AI Technical Summary

Problems solved by technology

Traditional vibration damping devices such as tuned mass dampers, etc., make structural vibration attenuation very obvious, but it has defects such as narrow vibration damping frequency band, limited energy dissipation capacity and high damper setting price.

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