Vibration-attenuation control device for eddy current damper

An eddy current damper and control device technology, which is applied to building types, buildings, building components, etc., can solve the problems of difficulty in ensuring the vibration control effect of shock absorbers, and achieve the effects of great practical value, high cost performance and convenient maintenance.

Inactive Publication Date: 2017-05-10
SHANDONG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

At present, the main passive control devices include shock isolation devices, energy dissipation shock absorbers, and mass-tuned TMD devi

Method used

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  • Vibration-attenuation control device for eddy current damper
  • Vibration-attenuation control device for eddy current damper

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Embodiment Construction

[0028] Embodiments of the present invention will be described in detail below in conjunction with technical solutions and accompanying drawings.

[0029] The eddy current damper is an energy dissipation and vibration reduction device made by the damping effect of the eddy current. It has the advantages of long service life, less maintenance and easy installation. At present, it is mainly used as the damping element of the tuned mass damper in civil engineering The field of vibration control of structures. Correspondingly, the present invention is based on the principle of electromagnetic induction. During the vibration process, electromagnetic force will be generated to hinder its vibration, and an electric eddy current will be formed to convert the mechanical energy of vibration into electrical energy and finally heat energy for dissipation. In addition, the spring pendulum is a nonlinear system, and its motion mode is the coupling of two modes of spring vibration and overall...

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Abstract

The invention discloses a vibration-attenuation control device for an eddy current damper. The vibration-attenuation control device comprises a box-shaped structure, wherein a spring pendulum which is connected with the top surface of the box-shaped structure is perpendicularly arranged in the box-shaped structure and can swing in various directions in the box-shaped structure; according to the movement mode of the spring pendulum, up-down vibration of a spring is coupled with swinging of the spring pendulum; the spring pendulum comprises the spring and a cylinder structure which is vertically connected to the lower end of the spring; magnets are respectively connected to the four horizontal directions of the cylinder structure and the lower end of the cylinder structure; the magnets can swing back and forth along with the cylinder structure and move relative to the box-shaped structure; eddy current can be generated on various surfaces of the box-shaped structure; and the box-shaped structure can be obstructed by an electromagnetic force to move relatively.

Description

technical field [0001] The invention belongs to the field of vibration reduction control of towering structures, in particular to an eddy current damper vibration reduction control device, which can be used for vibration reduction control in civil engineering structures. Background technique [0002] Towering structure is a slender structure with high height, relatively small cross-section, and lateral load plays a major role. Because of its tall and beautiful form, it is widely used in many fields such as communication, electric power and chemical industry. Compared with ordinary building structures, high-rise structures have smaller horizontal stiffness, are sensitive to wind loads and earthquakes, and are prone to greater static and dynamic responses. [0003] my country is a country where wind disasters and earthquake disasters occur relatively frequently. Under the action of strong winds or strong earthquakes, high-rise structures react strongly or even collapse frequen...

Claims

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Application Information

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IPC IPC(8): E04H9/02E04H9/14E04B1/98
CPCE04H9/02E04H9/027E04H9/14
Inventor 田利潘海洋郭刘潞
Owner SHANDONG UNIV
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