SWING CONTROL DEVICE AND METHOD FOR ROTOR CRAFT

摘要

PROBLEM TO BE SOLVED: To provide a swing control device and method suppressing a swing without impairing stability of a blade flapping motion in the swing control. SOLUTION: When a rotor 1 receives a gust, the rotor attitude is changed. A flapping sensor 6 detects a flapping angle of each blade 2 and the rotor attitude is measured through an analysis. The measured rotor attitude is passed through a notch filter 21 so as to remove 1/rev frequency equal to the rotation speed of the rotor. That is to say, a natural oscillation component of the flapping is removed. The rotor attitude is feedback controlled to become a prescribed attitude based on the signal formed by removing the natural oscillation component of the flapping so that the swing is suppressed without impairing the stability of the blade flapping motion.