Analysis of gravity and inertial loadings in irregular compound motion of wind-wheel blades.
Analytical dependencies are deduced for determining the influence of gravity and inertial loadings originating from blades' rotation round three axes: that of the wind-wheel (in interacting with the air stream), of the tower (in changing the wind bearing), and of the Earth, on blades dynamics. Formulae for calculating axial forces, a well as bend and shear loadings affecting elementary areas of blades in their compound motion, are presented. <i>Keywords</i>: blades of a wind wheel, blade dynamics, gravity loadings, inertial loads, Earth rotation loadings.