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An omnidirectional tuned mass damper for flexible towers of wind turbines

A wind turbine, tuned mass damping technology, applied in the installation/supporting configuration of wind turbines, wind power generation, building types, etc., can solve the problems of high cost of vortex-induced vibration control and difficult construction

Active Publication Date: 2021-05-18
ZHEJIANG WINDEY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly provides an omnidirectional tuning mass damper for flexible use of wind power generating sets with simple structure and convenient construction, which can effectively control the dynamic response of the wind-loaded vortex-induced vibration of the flexible tower and ensure the safety and reliability of the flexible tower. The device solves the technical problems existing in the prior art that the height of the tower increases, the cost of vortex-induced vibration control is high, and the construction is difficult.

Method used

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  • An omnidirectional tuned mass damper for flexible towers of wind turbines
  • An omnidirectional tuned mass damper for flexible towers of wind turbines
  • An omnidirectional tuned mass damper for flexible towers of wind turbines

Examples

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Embodiment 1

[0021] Such as figure 1 and figure 2 As shown, an omnidirectional tuned mass damper for a flexible tower of a wind power generating set of the present invention includes a counterweight mass 1 located in a square-shaped support frame 2, and the counterweight mass 1 is composed of several circular The upper and lower counterweight plates 11 are superimposed and fixed together, wherein the diameter of the counterweight plate 11 corresponding to the upper and lower ends of the counterweight mass 1 is smaller than the diameter of the counterweight plate 11 in the middle, and is coaxial on the bottom surface of the counterweight mass 1 A square horizontal support disc 6 is installed horizontally, and the horizontal support disc 6 is located between the large-diameter counterweight disc 11 and the small-diameter counterweight disc 11 at the lower end of the counterweight mass 1, such as Figure 4 As shown, a sliding plate 8 is coaxially fixed on the bottom surface of the counterwe...

Embodiment 2

[0023] It includes a tower body vertically supported on the ground, and two sets of support frames 2 with counterweight masses 1 are coaxially installed in the corresponding tower body cavity above the ground, and each set of support frames 2 consists of two support frames 2 Composition, two support frames 2 are superimposed and connected to each other, one set of support frames 2 is located at the top of the tower body, and the other group is located at the middle of the tower body. All the other parts are identical to Example 1.

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Abstract

The invention discloses a tuned mass damper, provides an omnidirectional tuned mass damper for the flexibility of a wind power generating set that ensures the safety and reliability of a flexible tower, and solves the problem that the tower can vary with height in the prior art. Increase, technical problems such as high cost of vortex-induced vibration control, difficult construction, etc., it includes the counterweight mass block, the counterweight mass block is slidingly supported on the bottom surface in the support frame, and the upper and lower ends of the counterweight mass block One end of several upper support springs and lower support springs are respectively hooked, and the other ends of the upper support springs and lower support springs are respectively horizontally hooked on the corresponding support frames, so that the counterweight mass remains in a stable support state.

Description

technical field [0001] The invention relates to a tuned mass damper, in particular to a flexible tower of a wind power generation unit with simple structure and convenient construction, which can effectively control the dynamic response of the wind-loaded vortex-induced vibration of the flexible tower and ensure the safety and reliability of the flexible tower. Omnidirectional tuned mass damper for barrel. Background technique [0002] With the development of large-scale wind turbines, the tower is the main load-bearing part of the wind turbine, and the height of the tower is getting higher and higher. When the height of the rigid tower is higher than 100m, its weight will increase exponentially. Increase, production and transportation costs increase, so the flexible tower solves the above problems well, it can not only meet the height requirements, but also effectively reduce production and transportation costs, but the natural frequency of the flexible tower is generally l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D13/20E04B1/98E04H9/02
CPCE04H9/021F03D13/20Y02E10/72Y02E10/728
Inventor 罗勇水庄剑余陈棋应有卓沛骏
Owner ZHEJIANG WINDEY