Device for reducing the vibration generated on the structure of a rotary-wing aircraft
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United States of America Patent
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Aug 28, 2001
Grant Date -
N/A
app pub date -
Sep 28, 1999
filing date -
Oct 12, 1998
priority date (Note) -
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Abstract
The present invention relates to a device for reducing vibration generated on the structure (2) of a rotary-wing aircraft, particularly a helicopter. According to the invention, the device (1A) comprises at least one flapping mass (3) connected to the structure (2), at least one controllable actuating device (5A) capable of causing the flapping mass (3) to flap, and a control unit (UC1) intended to control the actuating device (5A) in such a way that it causes the flapping mass (3) to flap at a frequency and at an amplitude which allows the vibrations to be reduced and minimized.
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