Dual frequency hub mounted vibration suppressor system
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United States of America Patent
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Mar 26, 2013
Grant Date -
Sep 24, 2009
app pub date -
Jan 13, 2009
filing date -
Mar 20, 2008
priority date (Note) -
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Abstract
A vibration suppressor system includes an annular electric motor system which independently controls rotation of at least two masses about the axis of rotation to reduce in-plane vibration of the rotating system. A method of reducing vibrations in a rotary-wing aircraft includes independently controlling a relative angular position of a multiple of independently rotatable masses to reduce vibrations of a main rotor system.
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