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Horizontal tuning frame type eddy current damper

An eddy current damper and eddy current damping technology, which is applied in the direction of protective buildings/shelters, building components, and earthquake resistance, can solve problems such as not completely solved, achieve good results, improve energy consumption efficiency, and achieve good results. Effect

Active Publication Date: 2020-12-29
湖南省潇振工程科技有限公司
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  • Abstract
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Problems solved by technology

[0007] But all still do not thoroughly solve above-mentioned two problems in above-mentioned invention

Method used

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  • Horizontal tuning frame type eddy current damper
  • Horizontal tuning frame type eddy current damper

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Embodiment Construction

[0037] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] like figure 1 and figure 2 Shown is a negative stiffness level tuned mass magnetic field modulation type eddy current damper, the damper includes a support system, a spring-mass system, an eddy current damping system and a negative stiffness system; the support system includes an outer frame (11) and a guide rod (12), the guide rod (12) is horizontally arranged and its two ends are fixedly mounted on the outer frame (11); the spring mass system includes a spring (1) and a counterweight (2), the The spring (1) is sleeved on the guide rod (12), the fixed end of the spring (1) is consolidated with the outer frame (11), and the free end is consolidated with the counterweight (2); the counterweight (2) set on the guide rod (12) and can carry out horizontal linear motion along it; the eddy current damping system ...

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Abstract

The invention provides a horizontal tuning frame type eddy current damper. The horizontal tuning frame type eddy current damper comprises a supporting system, a spring mass system, an eddy current damping system and a negative stiffness system, wherein the supporting system comprises an outer frame and a guide rod; the spring mass system comprises a spring and a balancing weight; the eddy currentdamping system comprises a low-speed end permanent magnet, a high-speed end permanent magnet, a guide rail, a sliding block, a magnetism adjusting plate, a conductor plate and back iron; the negativestiffness system comprises a moving permanent magnet and a fixed permanent magnet; and the damper applies the magnetic field modulation principle and the concept of a negative stiffness nonlinear energy trap. The moving speed of the high-speed end permanent magnet is increased through the magnetism adjusting plate, and the energy consumption efficiency of the damper is improved. The movement of the balancing weight can be promoted through the tangential component of repulsive force between the permanent magnets of the same name, and therefore the vibration reduction frequency band is widened,robustness is better, and the problem that the vibration reduction effect is poor when a traditional tuning mass damper is out of order is solved.

Description

technical field [0001] The invention belongs to the field of vibration control devices for engineering structures, and in particular relates to a negative stiffness horizontally tuned mass magnetic field modulation type eddy current damper. Background technique [0002] Structural vibration reduction using a tuned mass damper (TMD) is a kind of passive control technology for structural vibration. It is widely used in the field of engineering structures. Installing it in a vibrating bridge structure or high-rise building structure has a very obvious effect on structural vibration. inhibitory effect. [0003] However, there is room for further improvement in the traditional horizontal eddy current tuned mass damper: 1. The energy consumption efficiency of the eddy current damper needs to be further improved; 2. The vibration reduction frequency band of the traditional TMD is narrow, so it is necessary to widen the vibration reduction frequency band to improve the robustness of...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 封周权陈政清宋佳华旭刚牛华伟
Owner 湖南省潇振工程科技有限公司
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