Particle-group idler wheel synergistic tuned damper

Abstract

The invention relates to a particle-group idler wheel synergistic tuned damper comprising an external cavity unit, limiting springs, a nested-type particle group, an internal cavity unit, metal partition plates, a damping particle group, a damping hole, viscous liquid and a buffering material. Each of the internal cavity unit and the external cavity unit of the damper is a cylinder, the external cavity unit is filled with the viscous liquid, the internal cavity unit is controlled in the external cavity unit through the limiting springs, and by taking the nested-type particle group as idler wheels, the internal cavity unit moves back and forth in the any horizontal direction along with continuous sloshing of the viscous liquid; the interior of the internal cavity unit is divided into a plurality of subspaces through the metal partition plates, damping holes are formed in the vertical metal partition plates, and the subspaces are composed of air, the particle groups and the viscous liquid; back-forth sloshing of the viscous liquid drives the internal cavity unit to move back and forth for vibration reduce; and energy is consumed through friction between the viscous liquid and dampingholes. According to the particle-group idler wheel synergistic tuned damper, the advantages of various dampers are combined, the vibration-reducing frequency band is widen, multi-directional vibration-reducing and energy dissipation are achieved, the efficiency is high, and typical practicability in the field of civil structure vibration control is achieved.

Description

Technical field [0001] The invention relates to a particle group roller coordinated tuning damper. The internal cavity unit of the damper uses a nested particle group as a roller to slide in any direction in the outer cavity unit. The cavity is filled with viscous liquid and passes through multiple large and small particles. Collision and continuous sloshing of the tuning liquid transfer and dissipate the structural kinetic energy, which can realize all-directional tuning energy dissipation and shock absorption at the structural level. It belongs to the field of vibration control of civil structures (including high-rise buildings, high-rise structures and bridge structures, etc.). technical background [0002] With the development of high-strength and ultra-high building structures in recent years, issues such as earthquakes and wind-induced vibrations have received key attention and research. The passive control technology of damping and energy dissipation of dampers is widely u...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the limitations of the existing tuned mass damper, such as narrow damping frequency band and single control direction, the purpose of the present invention is to provide a particle group roller coordinated tuned damper, which is easy to install and easy to introduce on the basis of the traditional tuned mass damper. The tuned liquid damper (TLD), which is easy to adjust the frequency, comprehensively utilizes the advantages of various dampers, so as to achieve the requirements of wide application range, sensitive response, wide frequency band of vibration reduction, multi-directional coordinated vibration reduction effect, etc., and meet the actual needs of civil engineering

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