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An eddy current particle inertia damper

A particle damping and eddy current technology, applied in protective buildings/shelters, building types, buildings, etc., can solve the problems of less particle collisions, unstable damping properties, limited energy consumption, etc., to improve vibration reduction effect, increase the robustness of vibration reduction, and the effect of high collision efficiency

Active Publication Date: 2021-09-03
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of narrow damping frequency band of traditional tuned mass dampers, unstable damping properties and frequent maintenance, less particle collisions of traditional particle dampers, and limited energy dissipation capacity caused by particle stacking. Provide an eddy current type particle inertial damper

Method used

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  • An eddy current particle inertia damper
  • An eddy current particle inertia damper
  • An eddy current particle inertia damper

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Embodiment Construction

[0038] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] Such as figure 1 , 2 As shown, it is an eddy current type particle inertial damper, which includes a single pendulum damping unit and a particle inertial unit. Connected, the rotating shaft 12 drives the rotary drum 14 in the particle inertial unit to rotate.

[0040] In this embodiment, the pendulum damping unit includes a pendulum damping unit box 1, a pendulum mass body 2, a conductor plate 3, a spring 4, a permanent magnet 5, an elastic expansion plate 6, a buffer baffle 7, particles 8, and a transmission shaft 9. Cushioning material 11, bolts 15; the upper end of the pendulum mass body 2 is fixed on the drive shaft 9, when the structure vibrates, the pendulum mass body 2 and the conductor plate 3 move relative to each other to generate eddy current damping, driving the drive shaft 9 Rotate, and increase the impact efficiency of...

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Abstract

The invention relates to an electric eddy current particle inertial capacity damper, which comprises a single pendulum damping unit and a particle inertial capacity unit, which are connected by a gear transmission assembly, and through the gear transmission assembly, the swing of the single pendulum damping unit can be Transfer to the particle inertial unit; the pendulum damping unit includes a pendulum damping unit box and a pendulum mass body, and the pendulum mass body is swingably arranged in the pendulum damping unit box, and its upper end Connected with the gear transmission assembly, the pendulum mass body is provided with a permanent magnet, and corresponding to the permanent magnet, a conductor plate is provided on the inner wall of the pendulum damping unit box, and the pendulum mass body swings eddy current damping effect. The invention can not only consume energy through the tuning of a single pendulum mass body, but also can consume energy through particle collision and elastic-plastic deformation, and has multiple energy consumption mechanisms. better.

Description

technical field [0001] The invention belongs to the field of vibration control of civil structures, in particular to an eddy current type particle inertial capacity damper. Background technique [0002] At present, in the field of civil engineering, structural vibration control technology plays an important role in anti-seismic and wind resistance. Among them, the development of passive control technology is relatively mature, and it is widely used in engineering because of its simple concept, clear mechanism, and no need for external energy input. Practice. Among them, the mechanical principle of the tuned mass damper is simple and clear, the change to the original structure is small, and the vibration reduction effect is obvious. It has been maturely used in engineering practice, but it can only have a good performance in a small specific frequency range near the resonance area. Vibration reduction effect, the vibration reduction effect is not good for frequencies that de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 鲁正周超杰柳祥千
Owner TONGJI UNIV
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