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Device with distributed masses for reducing the vibration caused by a lift rotor of a rotorcraft, and hub of a rotor provided with such a device
Device with distributed masses for reducing the vibration caused by a lift rotor of a rotorcraft, and hub of a rotor provided with such a device
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机译:具有减小的质量的用于减小由旋翼机的提升旋翼引起的振动的装置以及设置有这种装置的旋翼的毂
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摘要
The device (1) has a support (10) secured in rotation around a rotation axis (AX) of a lift rotor. Main oscillating masses (22) are distributed around the support by being connected to the support through a deformable unit (30), where each main mass is provided with recesses (21', 22'). Each main mass is forced to move only in a horizontal plane (P) by the deformable unit. Each main mass is provided with secondary oscillating masses (41, 42) suspended within the recesses by elastic units (50) so as to move in a direction perpendicular to the horizontal plane. An independent claim is also included for a hub for a lift rotor of a rotorcraft, comprising an upper part integrated to a support of a vibration reducing device.
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