Hello
I am trying to study the effect of bend-twist coupling on the structural mechanics of a wind turbine blade using FAST. In order to incorporate the coupling using the anisotropic property of composite laminates can I possibly change the stiffness matrices in the blade input file with the laminate stiffnesses? Is that enough?
Bend-twist coupling
Moderator: Bonnie.Jonkman
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Dhivya.Sundar
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- Joined: Wed Sep 04, 2019 1:19 am
- Organization: Nanyang Technological University
- Location: Singapore
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Jason.Jonkman
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Re: Bend-twist coupling
Dear Dhivya,
There are two ways to induce bend-twist coupling in a blade...through the geometry of the blade and through an anisotropic composite laminate layup. Both of these effects can be simulated in the BeamDyn module of FAST / OpenFAST. For the latter, BeamDyn allows the user to specify the full 6x6 stiffness matrix at each beam cross section, which allows for analyzing any anisotropic composite laminate layup.
Best regards,
There are two ways to induce bend-twist coupling in a blade...through the geometry of the blade and through an anisotropic composite laminate layup. Both of these effects can be simulated in the BeamDyn module of FAST / OpenFAST. For the latter, BeamDyn allows the user to specify the full 6x6 stiffness matrix at each beam cross section, which allows for analyzing any anisotropic composite laminate layup.
Best regards,
Jason Jonkman, Ph.D.
Senior Engineer | National Wind Technology Center (NWTC)
National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov
Senior Engineer | National Wind Technology Center (NWTC)
National Renewable Energy Laboratory (NREL)
15013 Denver West Parkway | Golden, CO 80401
+1 (303) 384 – 7026 | Fax: +1 (303) 384 – 6901
nwtc.nrel.gov
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