A fatigue and stress distribution analysis of horizontal axis wind turbine blade

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Published: Apr 25, 2022
DOI: https://doi.org/10.14456/apst.2022.50
Keywords:
Horizontal Axis Wind Turbine Composite Wind Turbine Blade Computational Fluid Dynamics Fatigue life Fatigue Analysis Wind Energy

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Fakada D. Gurmesa
Faculty of Mechanical Engineering, Jimma Institute of Technology, Jimma University, Jimma, Ethiopia
Johnson A. Santhosh
Faculty of Mechanical Engineering, Jimma Institute of Technology, Jimma University, Jimma, Ethiopia
Biniyam A. Biniyam A.
Department of Mechanical Engineering, College of Engineering & Technology, Wolkite University, Ethiopia
Firew T. Kassaye
Faculty of Mechanical Engineering, Jimma Institute of Technology, Jimma University, Jimma, Ethiopia
Yahiya A. Kedir
Faculty of Mechanical Engineering, Jimma Institute of Technology, Jimma University, Jimma, Ethiopia

Abstract

Fatigue stress distributions developed on the wind turbine lead to fatigue failure due to various loads. The present study was performed under various loads such as gravitational load, centrifugal forces, and aerodynamic forces (lift and drag pressure) for Horizontal-Axis Wind Turbine (HAWT) blade made of composite materials (E-glass fibre). Fatigue failure analysis of wind turbine blade type the National Advisory Committee for Aeronautics (NACA) 4412 performed under wind speed of 35 m/s. After completing both the Computational Fluid Dynamics (CFD) and static structural analysis, the output results such as total stress, deformation, and shear stress are identified. Simultaneously, critical locations on the blade are shown on the CFD results. It is concluded that the maximum stress location in a wind turbine is the blade's leading edge and the blade root (part the nearer of the hub). The wind speed increases beyond recommendation design, and it decreases the life of the wind turbine blade. The blade's leading edge is more deformed, and the centrifugal load is considered the most influential factor in the life of the blades.

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How to Cite
Gurmesa, F. D., Santhosh, J. A., Biniyam A., B. A., Kassaye, F. T., & Kedir, Y. A. (2022). A fatigue and stress distribution analysis of horizontal axis wind turbine blade. Asia-Pacific Journal of Science and Technology, 27(03), APST–27. https://doi.org/10.14456/apst.2022.50
Issue
Vol. 27 No. 03 (2022): MAY-JUN
Section
Research Articles
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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