公开(公告)号：US12044205B2

公开(公告)日：2024-07-23

申请号：US17798998

申请日：2021-04-28

Applicant: LM Wind Power A/S ,  BLADE DYNAMICS LIMITED ,  BLADE DYNAMICS LLLP

Inventor： Madhi Baviloliaie ,  Jeppe Jørgensen ,  Rama Razeghi ,  Michael Koefoed ,  Jens Zangenberg Hansen ,  Thomas Merzhaeuser ,  Amir Riahi ,  Andrew M. Rodwell

IPC: F03D1/06 ,  B29C70/00 ,  B29C70/08 ,  B29C70/52 ,  B32B5/02 ,  B32B5/06 ,  B32B5/12

CPC classification number: F03D1/0675 ,  B32B5/12 ,  B32B2262/0253 ,  B32B2262/0276 ,  B32B2262/101 ,  B32B2262/106 ,  B32B2603/00 ,  F05B2240/30 ,  F05B2280/6013

Abstract: An interlayer sheet for a spar cap is provided. The interlayer sheet includes a first fibre layer having a first plurality of fibres with a first upper fibre surface and a first lower fibre surface, and a second fibre layer having comprising a second plurality of fibres with a second upper fibre surface and a second lower fibre surface. The first fibre layer is arranged on top of the second fibre layer, such that the first lower fibre surface is in contact with the second upper fibre surface. The first fibre layer is of a different characteristic than the second fibre layer. A number of the interlayer sheets may be arranged between a plurality of pre-cured fibre-reinforced elements to make a spar cap for a wind turbine blade.

公开(公告)号：US12247542B2

公开(公告)日：2025-03-11

申请号：US17911855

申请日：2021-04-28

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

Inventor： Mahdi Baviloliaie ,  Jeppe Jørgensen ,  Michael Koefoed ,  Jens Zangenberg Hansen ,  Thomas Merzhaeuser ,  Rama Razeghi ,  Amir Riahi ,  Andrew M. Rodwell

IPC: F03D1/06 ,  B29C70/00 ,  B29C70/52 ,  B29C70/54 ,  B32B5/06 ,  B32B27/08 ,  B32B27/20

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：US20230323855A1

公开(公告)日：2023-10-12

申请号：US18043183

申请日：2021-08-31

Applicant: LM Wind Power A/S

Inventor： Graham Andress Aldinger ,  Scott Jacob Huth ,  Rohit Agarwal ,  Amir Riahi ,  Andrew Mitchell Rodwell ,  Thomas Merzhaeuser

IPC: F03D1/06

CPC classification number: F03D1/0683 ,  F05B2280/6003 ,  F05B2230/60

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.