Abstract
The objective of the present work is to analyze the aerodynamic effects on the structural loads of rotor blade due to structural oscillation and inflow conditions. For the calculation of aerodynamic loads on the rotor blades, vortex lattice method based on panel method was adopted. In order to consider the blade oscillation in the edgewise and flapwise directions, a structural model with multiple degrees of freedom based on multi-body dynamics was used. The effects of the blade oscillation are taken account in the aerodynamic load calculation through the relative flow velocity due to oscillation along with the deformation and the displacement of the blades. The calculated results have been compared with the measurement results and the validity of the calculation model is evaluated.
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