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Building structure with means to reduce induced vibrations

A technology of building structure and installation status, which is applied to the assembly of wind turbines, building components, installation/support configuration of wind turbines, etc., and can solve problems such as changes

Active Publication Date: 2019-10-29
SIEMENS GAMESA RENEWABLE ENERGY AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This results in varying loads at the building

Method used

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  • Building structure with means to reduce induced vibrations
  • Building structure with means to reduce induced vibrations
  • Building structure with means to reduce induced vibrations

Examples

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Embodiment Construction

[0103] figure 1 A vortex generator is shown at a building structure.

[0104] figure 1 A building structure 1 with an outer surface 2 is shown. Vortex generators 9 and 10 are attached to the outer surface 2 of the building structure 1 .

[0105] The vortex generators 3 are arranged in rows 9 , 10 which are mainly oriented in the longitudinal direction of the building structure 1 .

[0106] exist figure 1 In , the building structure 1 is a tubular chimney or tower.

[0107] when figure 1 With the tubular chimney or tower section shown in the installed and upright orientation, the fin rows 9 , 10 are oriented in a substantially vertical direction along the outer surface 2 of the building structure 1 .

[0108] The rows of fins 9 , 10 are spaced apart from each other along the outer surface 2 of the building structure 1 at an angle measured along the perimeter of the outer surface 2 of the building structure 1 . For example, the angle between the two rows of fins 9, 10 is ...

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PUM

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Abstract

An arrangement to reduce vortex induced vibrations in a building structure. A building structure is disclosed, comprising an outer surface, whereby a vortex generator is connected to the outer surfaceof the building structure. The vortex generator is prepared and arranged in a way to generate vortices in an airstream passing by the outer surface.

Description

technical field [0001] The invention relates to an arrangement for reducing eddy current induced vibrations in a building structure. Background technique [0002] For tall structures such as towers, the wind interacts with the structure. The wind blows through the building. As the moving air leaves the building, vortices are created at the ends of the building. Eddy currents in the wake of a building cause varying air pressures at the building's surface. This results in varying loads at the building. [0003] It is known that vortex streets can form in the wake of buildings. A vortex is formed in the wake of a building and is shaded at a certain frequency. This causes the load at the building to vary with a certain frequency. Thus, vibrations are induced in the building. The induced vibrations may have a frequency close to or the same as the natural frequency of the building. In such a situation, the building starts to resonate and the loads in the building structure...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D13/10F03D13/20E04B1/98F03D7/02
CPCE04B1/98F05B2240/122F05B2240/912F05B2260/96F03D13/20Y02B10/30Y02E10/728Y02E10/72F05B2240/3062E04H12/08
Inventor P.B.恩沃德森A.G.根扎勒兹A.洛尔文C.J.斯坦
Owner SIEMENS GAMESA RENEWABLE ENERGY AS
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