A process for assembling aircraft control surfaces (1, 1′), in particular high-lift devices and wing portions, allows implementing smooth control surfaces in short times, wherein the control surface is defined by an upper skin (2) and by a lower skin (9), the upper skin being destined to form the leading edge (4) of the control surface by means of the connection to a front spar (3), wherein the upper skin and the lower skin are made of a laminar composite material which, not yet hardened, is fastened to structural elements (3, 5, 6, 7) of the control surface by means of an adhesive; and wherein the resin of the composite material and the adhesive are hardened simultaneously in autoclave.

A large-size wind power blade with a multi-beam structure and its manufacturing method, wherein the blade adopts a hollow layout structure and comprises a blade skin suction edge, a blade skin pressure edge, a main load-carrying structure crossbeam and anti-shearing webs, wherein the blade skin suction edge and the blade skin pressure edge are combined to form a cavity structure having a streamlined cross section, wherein a support structure formed by the combination of the main load-carrying structure crossbeam and the anti-shearing web is located in the cavity. Both the blade skin suction edge and the blade skin pressure edge adopt a multi-segment combined structure, wherein the multiple segments are connected to the side surface of the main load-carrying structure crossbeam to integrally form the blade skin suction edge and the skin pressure edge. Under the premise of ensuring the structural rigidity and strength, the anti-bending capability as well as the stability of the blade of the present invention is increased. With the use of high modulus carbon fiber laxer, the weight of the blade is reduced, the load of the blade, especially the fatigue load, is reduced is reduced.

Disclosed is a wind turbine blade and a method for its manufacture. A lower shell part and an upper shell part are provided, each shell part having a leading edge end and a trailing edge end. A flatback profile component and web for connecting an inner surface of the lower side shell part with an inner surface of the upper side shell part are connected. The assembly which comprises the flatback profile component and the at least one web are placed on the lower shell part and the upper shell part is mounted. The wind turbine blade comprises a flatback profile component being arranged at the trailing edge, wherein the flatback profile component is coupled by at least one distance holder with at least one web, wherein the web couples the interior surface of the upwind side shell part with the interior surface of the downwind side shell part.

Aspects of the disclosure are directed to a toolset configured to fabricate a component of an aircraft, the toolset comprising: a mold base configured to seat at least one mandrel, a mold lid configured to be coupled to the mold base, and at least one driver block that is integral with the mold lid and projects from an interior surface of the mold lid.

A method of forming a wind turbine blade shear web flange section (36) by resin transfer moulding comprises providing a mould assembly (84) comprising a mould surface (86) defining a mould cavity and arranging a plurality of elongate flange elements (46) with the mould surface in an array (80) such that the flange elements are positioned one on top of another with first and second longitudinal ends (56,60) of each flange element longitudinally offset from respective first and second longitudinal ends of a neighbouring flange element so as to form a tapered portion (58,62) at each of a first and second longitudinal end of the flange section (36). A The method further comprises injecting resin to the mould cavity and curing the array of flange elements in a resin matrix to form a cured flange section having a laminate construction.

A method of forming a rotor blade, including forming at least one of a partial upper skin, a partial lower skin, and a partial support network using an additive manufacturing process; and forming a first receptacle in at least a one of the partial upper skin, the partial lower skin, and the partial support network using the additive manufacturing process. The first receptacle is configured to receive of at least one of an electronic component and a mechanical component. In some embodiments, there is a method of manufacturing a rotor blade that includes forming a first locating receptacle in at least one of the upper skin, the lower skin, and the support network using the additive manufacturing process; and positioning at least one of the upper skin, the lower skin, and the support network in a desired position on a fixture based, in part, on the first locating receptacle.

Disclosed is a part element for a wind turbine blade and a method for manufacturing a part element. The part element comprises a primary sheet having a primary first side and a primary second side. The part element comprises a first fibre thread extending in a primary first direction and forming a first primary loop on the primary first side of the primary sheet from a primary first L1 point to a primary first L2 point. The part element comprises a second fibre thread extending in a primary second direction and forming a second primary loop extending from a primary second L1 point at the primary first side of the primary sheet to a primary second L2 point at the primary first side. A first pre-shaped element is positioned between the first fibre thread and the second fibre thread.

A pultruded fibrous composite strip, a spar cap made from such strips, a wind turbine rotor blade having such a spar cap and a method for making a spar cap from such strips is provided. The strip is stacked with similar strips to form the spar cap. The strip has a substantially constant cross-section defined by first and second mutually opposed and longitudinally extending sides, and by first and second longitudinal edges. The first and the second sides include first and second abutment surfaces, respectively. The first and the second abutment surfaces are non-planar. When the strip is stacked with similar strips, and subsequently integrated within shell of the wind turbine blade, the non-planar profile of the strips at least partially obviates formation of resin rich pockets at the interface of the spar cap and the shell and/or stress concentration between the edges of the spar cap and the shell.

A blade element is provided and includes courses of bias plies continuously machine-wrapped about leading and trailing edges at an angle relative to a long axis of the blade axis and unidirectional plies interwoven in parallel with the long axis between adjacent courses of the bias plies on upper and lower surfaces to promote respective tangential geometries of the bias plies at the leading and trailing edges, the unidirectional plies not extending into the leading and trailing edges.

A method of making a prefabricated root section (26) for a wind turbine blade (10) is described. The method comprises: providing a male mould (28) extending longitudinally in a spanwise direction between an inboard end (30) and an outboard end (32) and extending transversely in a chordwise direction between a leading edge (34) and a trailing edge (36), the male mould (28) defining a male mould surface (38) of convex curvature in the chordwise direction; providing a root plate (48) having one or more root inserts (50) projecting therefrom, the or each root insert (50) being arranged along an arcuate path; arranging one or more inner fibrous layers (40) on the male mould surface (38); arranging the root plate (48) at the inboard end (30), of the male mould (28) such that the or each root insert (50) overlays an inner fibrous layer at the root end of the mould (28). The method further comprises arranging one or more outer fibrous layers on top of the inner fibrous layers (40) and on top of the or each root insert (50), providing resin to the fibrous layers (40) and to the or each root insert (50) and curing the resin to form a prefabricated root section (26) for subsequent use in the manufacture of a wind turbine blade (10). Curing the resin to form the prefabricated root section (26) is conducted before removing the prefabricated root section (26) from the male mould (28).