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Multilayer unidirectional tuning liquid column damper

A tuning liquid column damping, one-way technology, applied in vibration suppression adjustment, anti-vibration, building components, etc., can solve the problems of decreased control performance, deviation from the natural vibration frequency of the structure, frequency sensitivity of single-layer TLCD, etc., to improve the robustness , Broaden the tuning frequency band and reduce the effect of dynamic excitation

Active Publication Date: 2021-04-16
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the structural frequency changes due to external conditions and the TLCD frequency remains unchanged, the TLCD frequency will deviate from the structural natural frequency, resulting in a decrease in control performance
Therefore, the control performance of single-layer TLCD is very sensitive to frequency

Method used

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  • Multilayer unidirectional tuning liquid column damper
  • Multilayer unidirectional tuning liquid column damper
  • Multilayer unidirectional tuning liquid column damper

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Embodiment Construction

[0031] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0032] Such as Figure 1~3 As shown, a multi-layer one-way tuning liquid column damper proposed by the present invention is a U-shaped box as a whole in appearance, and the U-shaped box is composed of a plurality of Us stacked from inside to outside but not in contact. Formed plate 1 and U-shaped end plates 4 located on both sides of all U-shaped plates are enclosed, each U-shaped plate 1 is provided with a baffle plate 2 at the horizontal section, each adjacent two U-shaped plates 1 and both sides The end plates 4 respectively form a U-shaped cavity, and each U-shaped cavity is filled with a liquid 3 to form a liquid column, and the U-shaped cavities are independent from each other to avoid the flow of the liquid 3 between different U-shaped cavities; The top of each U-shaped cavity is open and lo...

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Abstract

The invention relates to a multilayer unidirectional tuning liquid column damper. The damper is a box body which is integrally in a U shape, wherein the box body is formed by enclosing a plurality of U-shaped plates which are stacked from inside to outside and do not make contact with one another and U-shaped end plates located on the two sides of all the U-shaped plates; a baffle is arranged at the horizontal section of each U-shaped plate; every two adjacent U-shaped plates and the end plates on the two sides form a U-shaped cavity; each U-shaped cavity is filled with liquid to form a liquid column; the U-shaped cavities are independent of one another; and the tops of the U-shaped cavities are open and located on the same horizontal plane. According to the multilayer unidirectional tuning liquid column damper, on the basis of an existing unidirectional tuning liquid column damper, the damping effect is improved in the mode that the U-shaped plates are stacked, the tuning frequency bandwidth can be increased so that the multi-order vibration mode of the structure can be controlled at the same time, and the quality of the liquid in the damper can be improved so that the control efficiency of a certain order of vibration mode can be improved; and the natural vibration frequency of the unidirectional tuning liquid column damper is easy to adjust, and installation and maintenance are convenient.

Description

technical field [0001] The invention belongs to the technical field of vibration control devices for civil structures, and in particular relates to a multi-layer one-way tuning liquid column damper. Background technique [0002] The tuned liquid column damper (Tuned Liquid Column Damper, TLCD) was proposed by Sakai in 1989. It is an economical and simple structural vibration control device, and it has received extensive attention and research in the field of structural control. The TLCD is usually a U-shaped rectangular water tank filled with liquid. By adjusting the length of the liquid, the frequency of the TLCD is close to the frequency of the building structure (the liquid frequency of the TLCD depends on the total length of the liquid in the horizontal section and the vertical section, generally by adjusting the liquid The length of the vertical section of the TLCD is used to adjust the natural frequency of the TLCD), and energy dissipation is achieved by liquid head lo...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04H9/02F16F9/53
Inventor 王进廷丁昊潘坚文
Owner TSINGHUA UNIV
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