Stability of a Flexible Helicopter Rotor Blade in Forward Flight

摘要: The problem of the stability transient motion in flapping plane a flexible helicopter rotor blade forward flight is considered. formulation considers two degrees freedom—rigid and elastic bending. A new method determining developed, using concept Stability Number. It shown that results obtained by inclusion degree freedom agree with experimental to much larger extent than was achieved analyses neglecting flexibility. Numerical solutions equations M.I.T. "Whirlwind'' high-speed computer are given for number cases, both rigid blades.