Eddy current metal damper with multiplex damping and energy dissipating functions

Abstract

The invention discloses an eddy current metal damper with multiplex damping and energy dissipating functions. The eddy current metal damper comprises an eddy current composite board and a metal damper, the eddy current composite board comprises a magnetism conducting board and an eddy current board, the magnetism conducting board is used for supporting and magnetism conducting, and the eddy current board is arranged at the inner side of the magnetism conducting board, is of a structure with an opened bottom face and is used for cutting a magnetic line generated by a permanent magnet, and generating eddy current to dissipate seismic energy; the top of the metal damper is embedded in the eddy current board, a gap is left, the metal damper comprises a metal board, and the metal board is filled with the permanent magnet. According to the eddy current metal damper, the limiting and yielding energy dissipating capacity of the metal damper and the electromagnetic induction energy dissipatingprinciple of the eddy current damper are comprehensively utilized, the damping and energy dissipating effects are achieved to the larger extent, the eddy current metal damper has the energy dissipating capacity large enough, and the limiting effect is also achieved.

Description

Technical field [0001] The invention relates to a damper, in particular to an eddy current metal damper with multiple shock absorption and energy consumption. Background technique [0002] A damper is a device that provides movement resistance and consumes movement energy. The current bridge dampers mainly include displacement type and velocity type. Displacement-type dampers usually use metal yield energy consumption. Its energy consumption capacity is related to the hysteresis curve and deformation of metal components. It can also limit displacement while damping energy consumption. Displacement dampers have a better effect on controlling structural displacement. Good, but the effect of controlling structural acceleration is not good. Velocity-type dampers are usually made of fluid movement, especially when the fluid passes through the orifice, it will produce flow resistance. The flow resistance is proportional to the relative speed of motion. The velocity-type damper has a ...

AI Technical Summary

Problems solved by technology

Displacement dampers usually use metal yield energy dissipation, and its energy dissipation capacity is related to the hysteretic curve and deformation of metal components. It can also play a role in limiting displacement while reducing shock energy consumption. Displacement dampers are less effective in controlling structural displacement. Good, but poor control of structural acceleration

Velocity-type dampers are usually made of the principle of fluid motion, especially when the fluid passes through the orifice, which will generate flow resistance. The flow resistance is proportional to the relative motion speed. Velocity-type dampers have a better control effect on structural acceleration. , but the velocity type damper cannot provide stiffness and does not have the function of anti-drop beam

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