Method of manufacturing a wind turbine blade and a wind turbine blade thereof
AssigneeLm Wind Power US Technology Aps
InventorJordy Hertel Nilsson Van Kalken
Life of this patent
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Abstract
This invention relates to a method and a wind turbine blade, wherein one or more airflow modifying devices are attached to a wind turbine blade having a base aerodynamic profile. The base aerodynamic profile is configured to substantially carry the structural loading of this modified wind turbine blade. The airflow modifying device is manufactured via 3D-printing and/or via 3D-machining and optionally coated or laminated before attachment. Once attached, the airflow modifying device may further be coated or laminated before working the outer surfaces into their finished shape.
Claims17
A method of manufacturing a device (19) for modifying an aerodynamic profile of a wind turbine blade (5), the wind turbine blade (5) having a base aerodynamic profile, wherein the method comprises:
- manufacturing a body (24) of the device (19) having at least one outer surface (21) and at least one contact surface (20), the at least one contact surface (20) is shaped to substantially follow the contour of said base aerodynamic profile, when attached, wherein the body (24) forms a complex profile extending in a chordwise direction and further in a longitudinal direction, the complex profile is configured to modify said base aerodynamic profile of the wind turbine blade (5), when attached, and wherein the complex profile has concave and convex curvature in the chordwise and longitudinal directions;
- and
- applying (33′) at least one layer of fibre material or a coating over at least a portion of said at least one outer surface (21) of the body (24) to form the device (19), the device (19) being configured to be attached to the wind turbine blade (5),
- wherein said body (24) is manufactured (31) by three-dimensional printing and/or by three-dimensional machining of a base element (31a) of said device (19).
A device (19) for modifying an aerodynamic profile of a wind turbine blade (5), the device (19) comprising a body (24) forming a complex profile extending in a chordwise direction and further in a longitudinal direction, the body (24) has at least one outer surface (21) and at least one contact surface (20), the device (19) is configured to modify a base aerodynamic profile of the wind turbine blade (5), when attached, wherein the at least one contact surface (20) is shaped to substantially follow a contour of said base aerodynamic profile of the wind turbine blade (5), characterised in that at least one layer of fibre material or a coating extends over at least a portion of said at least one outer surface (21) of the body (24), and wherein the complex profile has concave and convex curvature in the chordwise and longitudinal directions.
Dependencies are inferred from the claim text.