A segmented blade, which includes a first blade segment having a first main beam, wherein the first main beam includes a first body portion disposed within the first blade segment and a first engaging portion extending from an end portion of the first body portion toward a direction which is away from the blade root; a second blade segment having a second main beam, wherein the second main beam includes a second body portion disposed within the second blade segment and a second engaging portion extending from an end portion of the second body portion toward a direction which approaches the blade root, and the second engaging portion being engaged in the first engaging portion; and an outer skin, which covers a gap between the first blade segment and the second blade segment. Also provided are a method for connecting segmented blades and a wind power generator set.

A jointed wind turbine rotor blade includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint line. Each of the first and second blade segments includes opposite spar caps. The first and second blade segments are connected at the chord-wise joint line by internal joint structure, wherein the joint structure is bonded to the opposite spar caps in at least the second blade segment. The spar caps in the second blade segment have a first section with a first chord-wise width that is unbonded to the joint structure and a second section with a second chord-wise width that is bonded to the joint structure. The second chord-wise width is greater than the first chord-wise width.

A method for mating a first surface of a first structure to a second surface of a second structure, the method comprising: providing a device at least comprising: a first body adapted for insertion at least in a through hole of the first surface; and a second body adapted for insertion at least in a through hole of the second surface, the first body being further adapted for being mechanically coupled with a second body, and the second body being mechanically coupled with the first body; inserting at least a first portion of the first body in the through hole of the first surface; inserting the second body in the through hole of the second surface when the first and second surfaces are spaced apart by a distance; providing an apparatus for winding the second body; arranging the second body on the apparatus; and pulling one of the first and second structures towards the other one of the first and second structures by winding the second body with the apparatus.

A rotor blade for a wind turbine includes first and second blade segments extending in opposite directions from a chord-wise joint. Each of the first and second blade segments includes at least one shell member defining an airfoil surface and an internal support structure. The internal support structure of the first blade segment includes a beam structure extending lengthwise, whereas the internal support structure of the second blade segment includes a receiving section that receives the beam structure of the first blade segment. Further, the rotor blade includes at least one chord-wise extending pin positioned through the beam structure and the receiving section at the chord-wise joint so as to secure the first and second blade segments together. The rotor blade includes at least one additional support member that receives a portion of the chord-wise extending pin so as to reduce a chord-wise bending deflection of the chord-wise extending pin at the chord-wise joint.

Disclosed is a method for sealing a joint between a first blade section and a second blade section of a wind turbine blade, a sealing member and a wind turbine blade comprising a sealing member. The sealing member having a first surface and a second surface. The sealing member having a width between a first edge and a second edge. The sealing member being configured for attachment to the first outer shell along the first edge, and for attachment to the second outer shell along the second edge. The sealing member comprising a corrugated section between the first edge and the second edge, the corrugated section comprising one or more valleys and/or ridges extending along a lengthwise direction of the sealing member.

Provided is a wind turbine rotor blade with a longitudinal direction, at least one first rotor blade section with a first front side and one second rotor blade section with a second front side and a separation point between the first and second rotor blade sections. The first and second front sides abut against each other at the separation point. The first front side has a plurality of first recesses, and the second front side has a plurality of second recesses. Further provided is a fastening unit, which is designed to fasten the first and second rotor blade sections to each other at the separation point. The fastening unit has a plurality of first inserts made out of metal, which are arranged in the first recesses, and a plurality of second inserts made out of metal, which are arranged in the second recesses. The first inserts each have a first end and a second end. The second inserts each have a first end and a second end. The first ends of the first and second inserts are each arranged at the separation point. The fastening unit has a plurality of clamping units, which are suitable for bracing the first and second inserts against each other, wherein the respective first ends of the first and second inserts abut against each another and are braced against each other in the braced state.

The disclosure concerns a segmented wind turbine rotor blade, which is formed by at least two rotor blade segments, wherein at a division area of the wind turbine rotor blade the segments are firmly connected together at respective connection ends via a plurality of connecting elements, wherein a gap is formed between the connection ends, and a fairing is attached to the segments at the division area, the fairing covering the gap and the connecting elements; wherein the fairing is divided into at least two separate fairing sections, the fairing sections are coupled together at coupling regions at the pressure side and/or at the suction side of the rotor blade, and the coupling regions are spaced apart from the trailing edge or leading edge. The disclosure also concerns a method.

A segmented wind turbine blade comprises a first blade segment and a second blade segment connected to the first blade segment by means of male spar part protruding from the second blade segment and received in the cavity of a female spar part of the first blade segment.

The first blade segment comprises a spar cap bonded to an inner surface of a shell portion of the first blade segment.

The spar cap comprises a longitudinally extending scarf connection between a first spar cap portion made from pultrusions and a second spar cap portion being bonded to an outer surface of the female spar part, wherein the longitudinally extending scarf connection is spaced from, adjoins or partially overlaps the longitudinal inner end of the female spar part in the longitudinal direction of the blade.

A connecting structure of segmented wind turbine blade containing a metallic pin with a coating layer of self-lubricating liner containing a polymer matrix, aramid filers and polytetrafluoroethylene fibers, and multiple metallic bushings is disclosed.

An extendable wind turbine blade for being extended in length during operation thereof, the wind turbine blade having an exterior surface with a root region and an airfoil region and comprising a first blade segment including a first portion of the exterior surface, a second blade segment including a second portion of the exterior surface, and a connection mechanism connecting the blade segments, and being configured to bring the wind turbine blade to a retracted state, in which the portions of the exterior surface are flush and adjoining, when the wind turbine blade operates above a threshold rotational speed and to bring the wind turbine blade to an extended state, in which the portions of the exterior surface are disconnected and the blade length is at least 101% of the blade length in the retracted state, when the wind turbine blade operates below the threshold rotational speed.