Rotor head pendular resonator
AssigneeEurocopter
InventorsThomas Manfredotti, Michel Anthoine
Life of this patent
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Abstract
The resonator includes pendular bodies, each oscillating around an axis on a support coaxial with the rotor mast and rotated by the rotor head around the axis of the rotor at a rotational speed above the rotational speed of the rotor.
Claims12
A pendular rotor resonator, for the attenuation of vibrations generated by the motion of a rotor, comprising a rotor head at the location of which a rotor mast, rotated around a rotational axis of the rotor, rotates integrally with a hub connected to blades of the rotor, the resonator comprising at least one pendular body, mounted oscillatingly around an axis of pendular motion spaced from the centre of inertia of the pendular body and from the axis of the rotor, on a support coaxial with the rotor mast and rotated around the axis of the rotor, wherein said support is rotated on the rotor head at a rotational speed above the rotational speed of the rotor.
Dependencies are inferred from the claim text.