Aircraft multi-axis modal suppression system
Vibrations due to excitation of the natural modes of an aircraft's body are suppressed by an active multi-axis modal suppression system. Dedicated sensors are positioned in the aircraft at optimal locations for sensing modal induced vibrations. The sensor produced signals are processed through...
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Format | Patent |
Language | English French German |
Published |
06.01.2010
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Abstract | Vibrations due to excitation of the natural modes of an aircraft's body are suppressed by an active multi-axis modal suppression system. Dedicated sensors are positioned in the aircraft at optimal locations for sensing modal induced vibrations. The sensor produced signals are processed through control logic which, in response thereto, and in response to aircraft inertial, velocity and altitude related signals produces output control signals. The control signals effect control surface deployment creating forces to suppress the natural mode induced vibrations on multiple geometric axis's. More particularly, symmetric and anti-symmetric control surface deployments are used on one or more geoaietric axis's to damp lateral, longitudinal, vertical and most importantly torsional vibrational modes. |
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AbstractList | Vibrations due to excitation of the natural modes of an aircraft's body are suppressed by an active multi-axis modal suppression system. Dedicated sensors are positioned in the aircraft at optimal locations for sensing modal induced vibrations. The sensor produced signals are processed through control logic which, in response thereto, and in response to aircraft inertial, velocity and altitude related signals produces output control signals. The control signals effect control surface deployment creating forces to suppress the natural mode induced vibrations on multiple geometric axis's. More particularly, symmetric and anti-symmetric control surface deployments are used on one or more geoaietric axis's to damp lateral, longitudinal, vertical and most importantly torsional vibrational modes. |
Author | KIOUMARS, NAJMABADI JOHN, HO K CHUONG, TRAN B |
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DocumentTitleAlternate | Système de suppression des modes de vibration selon plusieurs axes dans un avion System zur Modenunterdrückung auf mehreren Achsen eines Flugzeugs |
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Notes | Application Number: EP20030078445 |
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Snippet | Vibrations due to excitation of the natural modes of an aircraft's body are suppressed by an active multi-axis modal suppression system. Dedicated sensors are... |
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SubjectTerms | AEROPLANES AIRCRAFT AVIATION CONTROLLING COSMONAUTICS HELICOPTERS PERFORMING OPERATIONS PHYSICS REGULATING SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES TRANSPORTING |
Title | Aircraft multi-axis modal suppression system |
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