Abstract:
Disclosed is wind turbine blade and a spar beam for structurally connecting a first blade section and a second blade section of a wind turbine blade. The spar beam comprises a first fibre reinforced element extending parallel to a spar beam axis. The spar beam comprising a conductive beam sheath circumscribing at least a beam sheath angular distance of the spar beam about the spar beam axis and longitudinally extending from a fourth beam axis position to a fifth beam axis position. The first fibre reinforced element is positioned between the conductive beam sheath and the spar beam axis.
Abstract:
The present invention relates to wind turbine blade and a method of manufacturing the wind turbine blade. An aerodynamic shell is provided with a recess (70) at its inner surface, the recess (70) extending with-in the shell along a spanwise direction of the blade. A first region of the recess (70) has a first width and a second region of the recess (70) has a second width exceeding the first width. A transition region is provided between the first region and the second region of the re-cess. A first and a second spar cap (80, 82) are arranged within the shell.
Abstract:
The loading apparatus (1) for loading rolls (2) of fibre based sheet material to an application unit for the production of fibre-reinforced parts comprises a frame (4) on which a lift (5) is arranged displaceably in vertical direction and is adapted to carry at least one roll (2). The lift (5) comprises a swivel mechanism (6) arranged rotatably about a swivel axis (7) and comprising at least first grippers (18) adapted to releasably grip shaft ends (9) of a first roll (2a) and second grippers (19) adapted to releasably grip shaft ends (10) of a second roll (2b). A method of loading rolls is also disclosed.
Abstract:
A vortex generator device (70) for mounting on a wind turbine blade (10) is disclosed. The device comprises: a base (71) having, when mounted on an exterior of the wind turbine blade (10), an inner side (72) for attaching on a surface, such as the exterior of the wind turbine blade (10), and an outer side (73) facing away from the exterior of the wind turbine blade (10). The device is provided with a vane vortex generator pair comprising a first vane (79) and a second vane (80) protruding from the outer side (73) of the base (71). The inner side (72) of the base (71) is provided with a recess (74) or undercut for obtaining an adhesive (81).
Abstract:
The present invention relates a method of manufacturing a wind turbine blade (10) part using a preform (98). A plurality of layers are arranged within a preform mould (90) to form a stack of layers, wherein one or more of the layers is formed by an elongate fabric (70) comprising a fibre material treated with a binding agent. The elongate fabric comprises an alternating pattern of first sections of fibre material free from binding agent and second sections of fibre material treated with binding agent.
Abstract:
A mould system for moulding a blade shell of a wind turbine blade includes a first mould for manufacturing a first blade shell part and a second mould for moulding a second blade shell part. The first mould has a first moulding side with a first moulding surface defining an outer shape of the first blade shell part. The second mould has a second moulding side with a second moulding surface defining an outer shape of the second blade shell part. The mould system is configured to rotate and position the first mould such that the first moulding side is facing the second moulding side and such that the first blade shell part may be joined with the second blade shell part so as to form the blade shell. The first mould includes a first mould flange along at least a part of the periphery of the first moulding surface.
Abstract:
A method of manufacturing an embedding element (76) for embedment in a shell structure of a wind turbine rotor blade (10) is provided, wherein the method comprises arranging a fibre material (99) and a binding agent on the lower mould plate (93) in between the first movable core member (97) and the second movable core member (98). One or both of the core members can be pushed towards the cavity for compacting the fibre material (99), which is then heated together with the binding agent to form the embedding element (76) or a preform (90) thereof.
Abstract:
A main laminate for a wind turbine blade, a wind turbine blade, and methods for manufacturing such components are disclosed. The main laminate extends along a longitudinal direction and comprising a connector element comprising a conductive mesh portion and an elongated connector part, wherein a connector part length is longer than an edge distance between the conductive mesh portion and a first edge, and wherein a secondary connector portion of the elongated connector part is bendable around a bend axis substantially parallel to the longitudinal direction.
Abstract:
The present invention relates to a pre-manufactured spar cap for a wind turbine blade comprising a spar cap structure comprising a plurality of fibre-reinforced composite elements arranged in stacked rows and separated by interlayers and a first and/or second damage tolerant cover sheet. The first and/or second damage tolerant cover sheets each comprises a first damage tolerant fibre layer and a second damage tolerant fibre layer attached to each other in attachment areas, wherein the attachments areas are separated from each other by a distance between 1-5 cm. Furthermore, the spar cap structure and the first and/or second damager tolerant cover sheet are embedded in a first cured resin. The present invention also relates to a damage tolerant cover sheet as such, as well as a wind turbine comprising a first and/or second damage tolerant cover sheet. Also, the present invention relates to methods of manufacturing a premanufactured spar cap, a wind turbine shell member and a wind turbine blade comprising the first and/or second damage tolerant cover sheet.
Abstract:
The present invention relates to a method of manufacturing a fibre-reinforced spar cap (45) for a wind turbine blade. A plurality of pultruded fibre plates (70) is arranged in a spar cap mould (62) to form a stacked arrangement (69) of pultruded fibre plates (70). An insert member (86) is arranged next to a lateral surface (67) of the stacked arrangement (69), wherein the first insert member (86) comprises a connecting surface (87), and wherein the first insert member (86) is arranged such that its connecting surface abuts against the first lateral surface (67) of the stacked arrangement (69). Resin is infused into the stacked arrangement (69) and the insert member (86) to form the fibre-reinforced spar cap (45) or a preform thereof, which can be trimmed to the required size.