JOINTED ROTOR BLADE HAVING INTERNAL SUPPORT STRUCTURE WITH VARYING FIBER ORIENTATION FOR PIN REINFORCEMENT

    公开(公告)号:US20220082078A1

    公开(公告)日:2022-03-17

    申请号:US17415871

    申请日:2018-12-19

    Abstract: A rotor blade for a wind turbine includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. The blade segments each have 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 that structurally connects with the internal support structure of the second blade segment via a receiving section. The rotor blade further includes one or more pin joints positioned on at least one of internal support structures of the blade segments. Further, at least one of internal support structures is constructed, at least in part, of a resin material having a plurality of fibers cured therein. The fibers are arranged with varying fiber orientations along a span of the rotor blade at locations of the pin joint(s).

    COMPLIANT STRUCTURES FOR JOINTED ROTOR BLADES

    公开(公告)号:US20210396207A1

    公开(公告)日:2021-12-23

    申请号:US17289987

    申请日:2018-11-01

    Abstract: A rotor blade includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. Each of the first and second blade segments has at least one shell member defining an airfoil surface. The first blade segment includes a beam structure having a receiving end with at least one span-wise extending pin extending therefrom. The second blade segment includes a receiving section that receives the beam structure. The receiving section includes a chord-wise member having a pin joint slot defined therethrough. The pin joint slot receives the span-wise extending pin at the receiving end of the beam structure so as to secure the first and second blade segments together. Moreover, the chord-wise member, the pin joint slot, and/or the span-wise extending pin includes at least one compliant structure formed of a compliant material that allows a deformation thereof to follow a shear deformation of the rotor blade.

    SPAR CAP CONFIGURATION FOR A JOINTED WIND TURBINE BLADE

    公开(公告)号:US20210381484A1

    公开(公告)日:2021-12-09

    申请号:US17288448

    申请日:2018-10-25

    Abstract: 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.

    JOINTED WIND TURBINE ROTOR BLADE HAVING VARYING MATERIAL COMBINATIONS ALONG ITS SPAN FOR PIN REINFORCEMENT

    公开(公告)号:US20210372366A1

    公开(公告)日:2021-12-02

    申请号:US17290308

    申请日:2019-10-30

    Abstract: A jointed rotor blade includes a first blade segment and a second blade segment extending in opposite directions from a chord-wise joint. Each of blade segments has 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 that structurally connects with the internal support structure of the second blade segment via a receiving section. The rotor blade further includes one or more pin joints positioned on at least one of internal support structures of the first blade segment or the second blade segment. Thus, at least one of internal support structures of the first blade segment or the second blade segment includes varying material combinations along a span of the rotor blade at locations of the one or more pin joints so as to reinforce the one or more pin joints.

    Method for manufacturing a wind turbine rotor blade root assembly

    公开(公告)号:US11167507B2

    公开(公告)日:2021-11-09

    申请号:US15923043

    申请日:2018-03-16

    Abstract: A method for manufacturing a rotor blade root assembly includes placing outer skin layer(s) onto a blade mold and arranging a root plate with a plurality of through holes adjacent to an end face of the blade mold. The method also includes placing a plurality of root inserts atop the outer skin layer(s) and abutting against the root plate, with each of the root inserts defining a fastener hole. The method also includes inserting a root fastener into each of the aligned through holes and longitudinal fastener holes. Moreover, the method includes placing inner skin layer(s) atop the root inserts. Further, the root plate may include at least one fluid hole configured therethrough to provide a non-gas tight root plate. Alternatively, at least one seal may be arranged between the root plate and the blade mold that forms a non-gas tight connection with either or both of the root plate or the blade mold during a vacuum infusion process. Thus, the method includes securing the outer skin layer(s), the root inserts, the inner skin layer(s), and the root fasteners together to form the root assembly via the vacuum infusion process.

    JOINT ASSEMBLY FOR A WIND TURBINE ROTOR BLADE

    公开(公告)号:US20190040842A1

    公开(公告)日:2019-02-07

    申请号:US15670102

    申请日:2017-08-07

    CPC classification number: F03D1/0675 F05B2240/302

    Abstract: A joint assembly for joining rotor blade segments of a wind turbine rotor blade includes a female structural member secured within a first rotor blade segment. The female structural member includes first bore holes on opposing sides thereof that are aligned in a chord-wise direction. Further, the joint assembly includes a male structural member extending longitudinally from an end face of a second rotor blade segment. As such, the male structural member is received within the female structural member of the first rotor blade segment such that the first and second rotor blade segments are aligned and connected. The male structural member includes second bore holes on opposing sides thereof. Further, the second bore holes are aligned with the first bore holes. Moreover, the joint assembly includes at least one chord-wise extending pin extending through the first and second bore holes so as to join the first and second rotor blade segments. In addition, the male structural member has a height that increases from a blade root of the rotor blade towards the at least one chord-wise extending pin.

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