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Horizontally tuned cantilever type eddy current damper

An eddy current damper, eddy current damping technology, applied in vibration suppression adjustment, spring/shock absorber, non-rotational vibration suppression, etc. The effect of efficiency

Active Publication Date: 2021-01-29
湖南省潇振工程科技有限公司
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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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  • Horizontally tuned cantilever type eddy current damper
  • Horizontally tuned cantilever type eddy current damper

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Embodiment Construction

[0033] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] like figure 1 and figure 2 Shown is a horizontal eddy current tuned mass damper with a negative stiffness nonlinear energy well. It includes a mass unit, a connection unit, a stiffness unit, a negative stiffness unit and an eddy current damping unit; the mass unit includes a counterweight (1); the connection unit includes a load-bearing component (2) for bearing the weight of the counterweight, The outer connecting plate (3) arranged on the top of the damper and the trapezoidal bracket (4) which is fixedly arranged under the outer connecting plate (3) and is generally wide at the top and narrow at the bottom; the stiffness unit includes a cantilever plate (5), and the cantilever The plate (5) is used to vertically connect the load-bearing component (2) and the outer connecting plate (3), so that the counter...

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Abstract

The invention provides a horizontally tuned cantilever type eddy current damper. The horizontally tuned cantilever type eddy current damper comprises a mass unit, a connecting unit, a rigidity unit, anegative rigidity unit and an eddy current damping unit, wherein the mass unit comprises a balancing weight; the connecting unit comprises a bearing component, an outer connecting plate and a trapezoidal support; the rigidity unit comprises a cantilever plate; the negative rigidity unit comprises a moving permanent magnet, a fixed permanent magnet, a mounting backup plate and a limiting cushion block a; and the eddy current damping unit comprises a low-speed end permanent magnet, a high-speed end permanent magnet, a guide rail, a sliding block, a magnetic adjusting plate, a conductor plate and a back iron. According to the horizontally tuned cantilever type eddy current damper, the magnetic field modulation principle and the concept of a negative rigidity nonlinear energy trap are applied, the moving speed of the high-speed end permanent magnet is increased through the magnetic adjusting plate, and the energy consumption efficiency of the damper is improved; and movement of the balancing weight can be promoted through the difference value of the attraction force between the different permanent magnets, so that the vibration reduction frequency band is widened, the robustness is better, and the problem that the vibration reduction effect is poor when a traditional tuned mass damper is imbalanced is solved.

Description

technical field [0001] The invention belongs to the field of vibration control devices for engineering structures, in particular to a cantilever type horizontal eddy current tuned mass damper with negative stiffness nonlinear energy wells. Background technique [0002] Structural vibration reduction using a tuned mass damper (TMD) is a kind of passive control technology for structural vibration. Inertia and reverse vibration, the main structure exerts a force opposite to the vibration direction, coupled with the energy dissipation effect of the damping unit, so that the vibration of the main structure is significantly attenuated. This device is widely used in the field of engineering structures, and it is installed in vibrating bridge structures or high-rise building structures, which has a very obvious suppression effect on structural vibrations. [0003] However, there is room for further improvement in the traditional horizontal eddy current tuned mass damper: 1. The ene...

Claims

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Application Information

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IPC IPC(8): F16F15/02
CPCF16F15/02F16F15/035
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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