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Computational simulation demonstrates superior efficiency of a mesh-free RBF-FD approach over finite element modeling in wind turbine blades, suggesting improved dynamic reliability.
The purpose of the present study is to conduct an advanced modal analysis of a three-dimensional wind turbine blade using a mesh-free method for sustainable energy. The blade is an essential component of the horizontal-axis wind turbines found in modern farms. The NREL S835 blade model is considered vital under clamped-free boundary conditions. These conditions play a significant role in analysis modal as they reduce design costs and avoid failures risks in the green energy production domain. The mesh-free method is a node-based method that is implemented. It is constructed on a scattered nodal distribution rather than mesh traditional methods. A particular type of mesh-free method is an hybrid formulation based on a radial basis function and finite difference: RBF-FD, and it is a robust in nature for vibration analysis of wind turbine blades. The governing equation based on the Lagrange’s formulation and is employed in the RBF-FD method. Numerical analysis has been performed which shows the efficiency of the mesh-free method over the finite element method for the entire range of frequency, i.e., 0–8 Hz. This research underscores the importance of mesh-free methods to enhance the dynamic analysis, long term reliability and sustainability of wind energy systems.
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Mnebhi-Loudyi et al. (2026) studied this question.
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