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Vortex vibration energy dissipation type frequency modulation liquid damper

A technology of frequency modulation liquid damping and vortex vibration, which is applied in building components, anti-vibration and other directions, can solve problems such as low efficiency, and achieve the effects of simple structure, good vibration reduction effect, and increased robustness and application range.

Active Publication Date: 2017-11-28
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the above use the different flow modes of the fluid itself (pore energy consumption, flow energy consumption, etc.) to consume energy, and a small part uses the collision of small particles to dissipate part of the energy. Dissipate energy, relatively low efficiency

Method used

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  • Vortex vibration energy dissipation type frequency modulation liquid damper
  • Vortex vibration energy dissipation type frequency modulation liquid damper
  • Vortex vibration energy dissipation type frequency modulation liquid damper

Examples

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Embodiment Construction

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0026] refer to figure 1 - As shown in Figure 7, the eddy vibration energy dissipation type frequency modulation liquid damper includes a water tank 1, a frequency modulation liquid 2, an elongated elastic body 3 and a connection node 4, and the water tank 1 and the elongated elastic body 3 are connected through the The node 4 is connected, and the frequency modulation liquid 2 is filled in the water tank 1 .

[0027] Further, the water tank 1 has two forms: frequency modulation liquid damper TLD form and frequency modulation liquid column damper TLCD form, which are welded by steel plates. The size and shape are designed according to the shock absorption requirements of the main structure, and can be cylindrical, cuboid, etc. Many forms.

[0028] Further, the elongated elastic body 3 has a circular cross-section and includes two i...

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Abstract

The invention relates to a vortex vibration energy consumption type tuned liquid damper which comprises a water tank, tuned liquid, a long and thin elastomer and a connecting node.The water tank is firmly connected with a body structure.The long and thin elastomer is connected to the interior of the water tank through the connecting node.The tuned liquid is injected into the water tank according to the designed liquid level.The structure vibrates so that the tuned liquid in the water tank can vibrate at a certain frequency; within the motion speed range of the tuned liquid, the long and thin elastomer is subjected to a vortex-induced resonance, large-amplitude transverse vibration is generated, the vibration energy of the liquid is dissipated, and damping is provided for the tuned liquid damper.The vortex vibration energy consumption type tuned liquid damper has the advantages of being simple in structure, good in liquid damping energy consumption mode, stable in vibration reduction effect and the like.

Description

technical field [0001] The invention is a tuning and vibration damping device for engineering structures, which is used for dynamic effect control caused by earthquake action or wind load, belongs to the technical field of energy consumption and vibration reduction control of building structures, and specifically relates to a vortex vibration energy consumption type frequency modulation liquid damper. Background technique [0002] In recent years, passive control technology has been increasingly applied to the response control of civil engineering structures under dynamic loads (wind loads, earthquakes, etc.). In passive control, the tuned liquid damper (Tuned Liquid Damper, TLD for short) is an effective structure damping control device, which uses the dynamic side pressure generated by the liquid in the fixed water tank during the sloshing process to provide vibration damping force of. The TLD will vibrate under earthquake or wind load, which will cause the liquid in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98
CPCE04B1/98
Inventor 陈鑫李爱群王洪张志强
Owner SUZHOU UNIV OF SCI & TECH
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