BLADE-MOUNTED CENTRIFUGAL PENDULUM

摘要

: A helicopter having a multiblade main rotor lift unit includes a plurality of pendulus mass units mounted to oscillate in the plane of the rotor. The mass units are connected to a rotatable shaft which passes through a blade grip for each blade. Vibrations generated in the plane of the rotor system are damped by the oscillating pendulums which are tuned to minimize the vibrations in the lift unit.