Methods of manufacture of wind turbine blades and other structures

A technology of ribs and fibers, applied in the field of improved structural configuration, which can solve the problems of increased failure chance, tower deformation, inefficiency, etc.

Inactive Publication Date: 2011-05-11
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It should be understood that blades lacking sufficient stiffness may suffer from several performance deficiencies, including increased chances of failure, inefficiency, deformation causing tower crashes, and other performance issues

Method used

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  • Methods of manufacture of wind turbine blades and other structures
  • Methods of manufacture of wind turbine blades and other structures
  • Methods of manufacture of wind turbine blades and other structures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] Generally, as those of ordinary skill in the art will appreciate, the blade of a wind turbine is constructed by connecting two separately formed halves, which when connected form an airfoil. The airfoil is usually the main body of the wind rotor blade, which interacts with the wind to cause rotation. Refer to the attached picture again, Figure 4 with Figure 5 Each shows a half piece that can be used to construct an airfoil 48 of a wind turbine blade 10 and provides an example of a rib-reinforced shell 50 according to an embodiment of the present application. Although shown as a half airfoil in the drawings, it should be understood that the present invention is applicable to construction techniques in which half of the airfoil is constructed as a single piece or more than half of the airfoil is constructed as a single piece. As explained in more detail below, the rib-reinforced shell 50 is a shell that includes a cross pattern or a grid or lattice structure substantially...

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PUM

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Abstract

A method of manufacturing a rib-stiffened shell 50 for a structure, wherein the rib-stiffened shell 50 comprises an outer skin 56 supported by a plurality of fiber ribs 54, the fiber ribs 54 comprising thickened strips of substantially unidirectional fiber, and wherein the fiber ribs 54 comprise a crisscrossing pattern that includes a plurality of junctions, the junctions 58 comprising an intersection of two or more of the fiber ribs 54, the method comprising the steps of: configuring a convex mold 70, the shape of which corresponds to the contour of the outer skin 56 of the structure; configuring a plurality of grooves 74 in the convex surface of the convex mold 70 that correspond to the pattern of the fiber ribs 54; laying up unidirectional fiber in the grooves 74 of the convex mold 70; and applying the outer skin 56 over the convex surface of the convex mold 70.

Description

Technical field [0001] The present application generally relates to methods, systems and / or devices related to the structure and construction of wind turbine rotor blades. More specifically, but without limiting meaning, the present application relates to methods, systems and / or equipment related to improved structural configuration and methods to construct airfoil and other structures of wind turbine rotor blades. Background technique [0002] Wind turbines are machines that convert the kinetic energy of wind into mechanical energy. If the mechanical energy is used directly by the machine, such as for pumping water or grinding wheat, the wind turbine can be called a windmill. Likewise, if the mechanical energy is also converted into electrical energy, the turbine can be called a wind generator or wind power plant. [0003] Wind turbines use one or more airfoils in the form of "blades" to generate lift and capture momentum from the moving air given to the rotor. Each blade is us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/30B29C70/34F03D1/06
CPCB29D99/0014B29D99/0028B29L2031/085F03D1/0675F05B2240/301F05B2250/711F05B2280/6013F05C2253/16Y02E10/72Y02P70/50
Inventor J·马修
Owner GENERAL ELECTRIC CO
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