Eddy current tuned mass damper for vibration reduction of fan tower and installation method thereof

A technology of tuning mass damping and eddy current damping, which is applied in the field of vibration reduction, can solve problems such as potential safety hazards, collisions with wind turbine tower walls, elevators, etc., and achieve reliable and safe installation, high installation accuracy, and eliminate potential safety hazards.

Active Publication Date: 2021-09-21
湖南省潇振工程科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for wind turbine tower damper to solve the problem that the mass block of the pendulum type eddy current tuned mass damper in the prior art may hit the wall of the wind turbine tower and the elevator, and there are potential safety hazards. Vibrated eddy current tuned mass damper and installation method thereof

Method used

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  • Eddy current tuned mass damper for vibration reduction of fan tower and installation method thereof
  • Eddy current tuned mass damper for vibration reduction of fan tower and installation method thereof
  • Eddy current tuned mass damper for vibration reduction of fan tower and installation method thereof

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Experimental program
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Effect test

Embodiment 1

[0049] Such as Figure 1-Figure 5 As shown in Fig. 1, an eddy current tuned mass damper for wind turbine tower vibration reduction includes an eddy current damper generator, a swing assembly and a limit assembly.

[0050] The eddy current damping generator includes a conductor plate 11 and a magnetic steel 12, and the conductor plate 11 and the magnetic steel 12 are arranged oppositely with a certain gap between them.

[0051] A tower diaphragm 8 is arranged inside the fan tower, and a conductor plate support 2 is arranged on the tower transverse diaphragm 8. The conductor plate 11 is installed on the conductor plate support 2, and the conductor plate 11 is a copper plate. Figure 1-Figure 5 Shown is the upper tower diaphragm 8 , and the lower tower diaphragm 8 is correspondingly provided under the conductor plate support 2 , and the conductor plate support 2 is installed on the lower tower diaphragm 8 .

[0052] The swing assembly includes a swing rod 7 and a mass block 3, t...

Embodiment 2

[0058] An installation method of an eddy current tuned mass damper for vibration reduction of a fan tower, installing the eddy current tuned mass damper for wind tower vibration reduction as described in Embodiment 1, comprising the following steps:

[0059] Step 1: making a transport trolley 13 capable of sliding along the wall 1 of the tower tube.

[0060] Such as Figure 6-Figure 7 As shown, the transport trolley 13 includes an arcuate plate 14 , a first wheel 15 , a second wheel 16 and a plurality of rings 17 . The first wheel 15 and the second wheel 16 are arranged in a figure-eight shape, and the first wheel 15 and the second wheel 16 can be arranged directly perpendicular to the arc-shaped tower tube wall 1, or the included angle with the tower tube wall 1 is 70 Between -110 degrees. The arc-shaped plate 14 is arranged between the first wheel 15 and the second wheel 16, and the arc-shaped plate 14 is a concentric arc structure with the tower tube wall 1, and the arc-s...

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Abstract

The invention relates to the technical field of vibration reduction, in particular to an eddy current tuned mass damper for vibration reduction of a fan tower and an installation method thereof. The eddy current tuned mass damper includes an eddy current damper generator and a swing assembly, and an eddy current damper The generator includes conductive plates and magnetic steel arranged at intervals. The swing assembly includes a swing rod and a mass block. The mass block is fixedly connected to the lower end of the swing rod, and the magnetic steel is fixed at the lower end of the mass block. It also includes a limit assembly. The limit assembly includes The limit rope, the limit rope is a ring structure, the limit rope is located on the periphery of the mass block, and the limit rope is used to limit the displacement of the mass block. In the present invention, a flexible limit rope is arranged on the periphery of the mass block to limit the excessive displacement of the mass block, which can effectively prevent the mass block from colliding with the wall of the fan tower tube and the elevator, and eliminate potential safety hazards; and the limit rope is used for flexible positioning, The structure is simple, the cushioning effect is obvious, and it has a good limit effect for collisions at different angles, and it is not easy to cause fatigue problems.

Description

technical field [0001] The invention relates to the technical field of vibration reduction, in particular to an eddy current tuned mass damper for vibration reduction of a fan tower and an installation method thereof. Background technique [0002] Wind turbines are usually called wind turbines, and wind turbines generally consist of wind rotors, generators and towers. The tower is an important load-bearing part in the fan. During use, the fan tower has the problem of excessive vibration under the action of wind load. [0003] Oil viscous dampers are usually used to control the vibration of wind turbine towers. Not only does it have oil leakage defects, but also the durability and reliability cannot meet the requirements. Therefore, technicians consider using pendulum eddy current tuned mass dampers for vibration control. The pendulum eddy current tuned mass damper uses eddy current damping technology, the conductor plate and the fixed magnetic steel produce relative motion,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 陈谨林张弘毅朱元鸿黄劲牛华伟陈政清
Owner 湖南省潇振工程科技有限公司
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