Buffer-type suspension-type particle tuning quality damper

Abstract

The invention relates to a buffer-type suspension-type particle tuning quality damper. The damper comprises a damping cavity, particle swarms, a buffer material, a steel cable and a limiting device. The damping cavity is rectangular or cylindrical, the damping cavity can be a single one or a plurality of damping cavities can be arranged horizontally or vertically, a layer of particle swarms is laid on a single cavity, an embedded part arranged inside a structure is hinged with the damping cavity through the steel cable, and the limiting device is arranged outside the damper so as to avoid damage of the structure due to excessive vibration. Under the action of wind or / and earthquakes, the device can vibrate along multiple directions horizontally, on one hand, through the natural vibration frequency of the tuning structure, on the other hand, through rolling, sliding, friction and collision transfer of the particle swarms and kinetic energy of a dissipative structure, after the buffer material is added, the energy dissipated by the collision is increased. The buffer material is added in the damping cavity, the damping cavity is suspended by using the steel cable, the vibration attenuation effect is better than that of a device with no buffer material, and the device provides vibration attenuation effects in more directions than a suspending device with a unidirectional hinge.

Description

technical field [0001] The invention relates to a buffer type suspended particle tuned mass damper which is hinged with the main structure by a steel cable and filled with particles in one or more cavities and added buffer materials. Energy is dissipated through tuning and frictional collision, which belongs to civil engineering Structure (including high-rise buildings, high-rise structures and bridge structures, etc.) vibration control field. Background technique [0002] In recent years, the tuned mass damper (TMD) or tuned liquid damper (TLD) vibration reduction control technology has been widely valued for its characteristics of small changes to the original structure, simple construction, and significant vibration reduction effects, and has been widely used in civil engineering at home and abroad. get applied. As a new type of energy dissipation and vibration reduction control technology, the particle damper has the advantages of small changes to the original system, w...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of narrow tuning frequency band of traditional tuned mass dampers and high cost of energy-dissipating dampers, as well as the limited energy-dissipating capacity and poor tuning ability of traditional particle dampers due to particle stacking and elastic collisions, the purpose of the present invention is to A buffer-type suspended particle tuned mass damper is proposed. This device combines the advantages of the tuned mass damper and the particle damper, and improves it. That is, it is hinged with the main structure through steel cables and filled in one or more cavities. Particles and additional cushioning material to form a cushioning suspended particle tuned mass damper

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