公开(公告)号：WO2021219751A1

公开(公告)日：2021-11-04

申请号：PCT/EP2021/061185

申请日：2021-04-28

Applicant: LM WIND POWER A/S ,  BLADE DYNAMICS LIMITED ,  BLADE DYNAMICS LLLP

Inventor： BAVILOLIAIE, Mahdi ,  JØRGENSEN, Jeppe ,  RAZEGHI, Rama ,  KOEFOED, Michael ,  HANSEN, Jens Zangenberg ,  MERZHAEUSER, Thomas ,  RIAHI, Amir ,  RODWELL, Andrew M.

IPC: B29D99/00 ,  B29C70/08 ,  B29C70/44 ,  B29C70/54 ,  B29C70/00 ,  B32B5/02 ,  B32B5/06 ,  B32B5/26 ,  B32B7/02 ,  B32B7/09 ,  B32B7/12 ,  F03D1/06 ,  B29C70/30 ,  B29L31/08 ,  B29C70/52

Abstract: The present disclosure relates to a spar cap (10) for a wind turbine blade (1000) comprising: a plurality of spar cap layers (20) and a first interlayer (30) arranged between the first spar cap layer (20a) and the second spar cap layer (20b) and comprising: a number of first interlayer areas (31), including a first primary interlayer area (31a), comprising a first number of interlayer sheets (33) comprising a first plurality of fibres (35); and a number of second interlayer areas (32), including a second primary interlayer area (32a), comprising a second number of interlayer sheets (34) comprising a second plurality of fibres (36), wherein the first number of interlayer sheets (33) is of a different characteristic than the second number of interlayer sheets (34).

公开(公告)号：WO2022029314A1

公开(公告)日：2022-02-10

申请号：PCT/EP2021/072059

申请日：2021-08-06

Applicant: BLADE DYNAMICS LLLP ,  LM WIND POWER A/S

Inventor： MERZHAEUSER, Thomas ,  RIAHI, Amir ,  RODWELL, Andrew M.

IPC: B32B5/00 ,  B32B5/26 ,  B32B7/022 ,  B32B27/00

Abstract: The present invention relates to a spar cap for a wind turbine blade comprising a plurality of pre-cured fibre-reinforced elements and a plurality of interlayers. The plurality of precured fibre-reinforced elements include a first pre-cured fibre-reinforced element and a second pre-cured fibre-reinforced element and the plurality of interlayers include a first interlayer comprising a first plurality of fibres embedded in a first cured resin. The first interlayer is being arranged between the first pre-cured fibre-reinforced element and the second pre-cured fibre-reinforced element. The first plurality of fibres have a first elastic modulus, the first cured resin has a second elastic modulus, the first and/or second p recured fibre-reinforced elements have a third elastic modulus, and the first interlayer has a fourth elastic modulus. The ratio between the first elastic modulus and the second elastic modulus is between 1:4 and 4:1 and/or the ratio between the third elastic modulus and the fourth elastic modulus is between 1:4 and 4:1.

公开(公告)号：WO2021219755A1

公开(公告)日：2021-11-04

申请号：PCT/EP2021/061190

申请日：2021-04-28

Applicant: LM WIND POWER A/S ,  BLADE DYNAMICS LIMITED ,  BLADE DYNAMICS LLLP

Inventor： BAVILOLIAIE, Mahdi ,  JØRGENSEN, Jeppe ,  RAZEGHI, Rama ,  KOEFOED, Michael ,  HANSEN, Jens Zangenberg ,  MERZHAEUSER, Thomas ,  RIAHI, Amir ,  RODWELL, Andrew M.

IPC: B29C70/24 ,  B29C70/88 ,  B29C70/12 ,  B29D99/00 ,  B29C70/52 ,  B29C70/08 ,  B29C70/44 ,  B29C70/54 ,  F03D1/06 ,  B29C70/00 ,  B32B5/02 ,  B32B5/06 ,  B32B5/26 ,  B32B7/02 ,  B32B7/12

Abstract: The present invention relates to an interlayer sheet (20) for a spar cap (10) comprising: a first fibre layer (30) comprising a first plurality of fibres, having a first upper fibre surface (31) and a first lower fibre surface (32), a second fibre layer (40) comprising a second plurality of fibres, having a second upper fibre surface (41) and a second lower fibre surface (42). The first fibre layer (30) is arranged on top of the second fibre layer (40), such that the first lower fibre surface (32) is in contact with the second upper fibre surface (41). The first fibre layer (30) is of a different characteristic than the second fibre layer (40). Furthermore, the present invention relates to a spar cap (10) for a wind turbine blade, comprising a plurality of pre-cured fibre-reinforced elements including at least a first pre-cured fibre-reinforced element (60) and a second pre-cured fibre-reinforced element (70);

公开(公告)号：WO2022043575A1

公开(公告)日：2022-03-03

申请号：PCT/EP2021/073992

申请日：2021-08-31

Applicant: LM WIND POWER A/S

Inventor： ALDINGER, Graham, Andress ,  HUTH, Scott, Jacob ,  AGARWAL, Rohit ,  RIAHI, Amir ,  RODWELL, Andrew, Mitchell ,  MERZHAEUSER, Thomas

IPC: F03D1/06

Abstract: A method of joining first and second blade components of a rotor blade of a wind turbine includes arranging the first blade component and the second blade component together at an interface. The first and second blade components are formed of different materials having different stiffnesses. The method further includes providing at least one gap at the interface of the blade components. Further, the method includes securing the blade components together by at least partially filling the gap with at least one filler material. Moreover, the method includes further securing the blade components together via an infusion process, wherein, during the infusion process, additional filler material further fills the gap or covers at least a portion of the at least one filler material. In addition, the method includes allowing the filler material(s) to cure. Thus, upon curing, the filler material(s) is configured to smoothly transition a load between the different materials of the blade components, thereby limiting an associated stress at the interface.