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Reinforced blade for wind turbine

A technology for wind turbines and blades, which is applied in the field of wind turbine blades, and can solve problems such as sudden breakage of blades and reduction of blade resistance to extrusion pressure

Active Publication Date: 2012-05-23
布拉德纳公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Distortion of the profile reduces the resistance of the blade to crushing pressure and can lead to sudden rupture of the blade

Method used

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  • Reinforced blade for wind turbine
  • Reinforced blade for wind turbine
  • Reinforced blade for wind turbine

Examples

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Embodiment Construction

[0073] The present invention will now be described more fully hereinafter with reference to the accompanying drawings that illustrate exemplary embodiments of the invention. However, this invention may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. The figures are schematic and simplified for the sake of clarity, they only show details necessary for the understanding of the invention, while other details have been omitted. Throughout the figures, the same reference numerals are used for identical or corresponding parts.

[0074] figure 1 A cross-section of a wind turbine blade 1 is shown, showing (by dashed lines) the gap between the trailing edge 4 and the inner spar / web 5 in operation due to flap direction loads originating from aerodynamic and ...

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PUM

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Abstract

The present invention relates to a reinforced blade for a wind turbine, and in particular to a wind turbine blade comprising a shell having a section with an aerodynamic profile, and at least one internal reinforcing floor connected inside the shell and extending substantially along the profile chord in order to increase the strength of the blade and to prevent or reduce deformations of the surface of the blade caused by edgewise and flapwise loading of the blade structure.

Description

technical field [0001] The present invention relates to a reinforced blade for a wind turbine, in particular to a wind turbine blade comprising: an airfoil shell having an aerodynamically contoured portion; and at least one internal stiffening rib, the at least An internal stiffener rib is attached within the wing shell and extends substantially along the profile chord to increase the strength of the blade and prevent or reduce deformation of the blade surface caused by edge and flap loads of the blade structure . Background technique [0002] A wind turbine blade usually consists of an aerodynamic wing shell and an inner spar such as a beam or spar, which can be a single beam but often two spars are used and which together with the wing shell can be said to form a box profile. Aerodynamic wing shells typically include laminates made of fiber reinforced plastic, fiberglass, and / or other materials. [0003] The part of the aerodynamic wing shell in which the inner spar is p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06F03D3/06
CPCF03D1/0675F05B2260/96F03D3/062Y02E10/721Y02E10/74Y10T29/49339Y02E10/72
Inventor 芬德·莫霍尔特·詹森
Owner 布拉德纳公司