Invention Grant
- Patent Title: Wind turbine blade having a bond line adjacent a sandwich panel of the blade
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Application No.: US14906585Application Date: 2014-07-23
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Publication No.: US09739260B2Publication Date: 2017-08-22
- Inventor: Jesper Hasselbalch Garm
- Applicant: LM WP PATENT HOLDING A/S
- Applicant Address: DK Kolding
- Assignee: LM WINDPOWER A/S
- Current Assignee: LM WINDPOWER A/S
- Current Assignee Address: DK Kolding
- Agency: Nath, Goldberg & Meyer
- Agent Jerald L. Meyer; Tanya E. Harkins
- Priority: EP13178448 20130730
- International Application: PCT/EP2014/065851 WO 20140723
- International Announcement: WO2015/014692 WO 20150205
- Main IPC: F03D1/06
- IPC: F03D1/06 ; B29L31/08

Abstract:
A wind turbine blade and an associated method of manufacture is described, wherein a structural bond line of the blade is positioned to be adjacent to a sandwich panel construction of the blade. By locating the structural bond line nest to a sandwich region of the blade, the buckling strength of the joint is improved and the risk of crack initiation in the adhesive joint is reduced considerably. This allows for a reduction in the amount of structural adhesive used in the blade, and/or a reduction in the amount of core material which is required in the sandwich panel to maintain the required blade stiffness. A particular advantage is provided in the region of the trailing edge of the blade, wherein the relocated structural joint considerably reduces the risk of buckling in the trailing edge side of the blade.
Public/Granted literature
- US20160168997A1 WIND TURBINE BLADE HAVING A BOND LINE ADJACENT A SANDWICH PANEL OF THE BLADE Public/Granted day:2016-06-16
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