Survey and comparison of engineering beam theories for helicopter rotor blades

摘要: Nomenclature A = blade cross-sectional area #!, B2 constants E Young's modulus e root offset eA tension axis chordwise F internal forces / applied G shear H angular momentum Iv. moment of inertia about the deformed y /,. z J polar K strain km radius gyration kml km2 flapwise Lv in-plane load Lw out-of-plane M My torsion m running mass, moment, Eq. (16) P — linear q generalized displacement R length r coordinate T u extension V speeds v bending w force 6 twist