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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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WES | Articles | Volume 4, issue 1
Wind Energ. Sci., 4, 57–69, 2019
https://doi.org/10.5194/wes-4-57-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Wind Energ. Sci., 4, 57–69, 2019
https://doi.org/10.5194/wes-4-57-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research articles 28 Jan 2019

Research articles | 28 Jan 2019

Determination of natural frequencies and mode shapes of a wind turbine rotor blade using Timoshenko beam elements

Evgueni Stanoev and Sudhanva Kusuma Chandrashekhara
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AR by Evgueni Stanoev on behalf of the Authors (11 Dec 2018)  Author's response    Manuscript
ED: Publish as is (25 Dec 2018) by Lars Pilgaard Mikkelsen
ED: Publish subject to technical corrections (02 Jan 2019) by Jakob Mann(Chief Editor)
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Short summary
In the frame of a multi-body simulation of a wind turbine, the lowest rotor blade eigenmodes are used to describe their elastic deformations. In this paper, a finite Timoshenko beam element is proposed based on the transfer matrix method. The element stiffness and mass matrices are derived by numerical integration of the differential equations of motion. A numerical example with generic rotor blade data demonstrates the performance of the method in comparison with FAST/ADAMS software results.
In the frame of a multi-body simulation of a wind turbine, the lowest rotor blade eigenmodes are...
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