Flutter-margin method accounting for modal parameters uncertainties
FLUTTER flight testing relies on the in-flight measurement of the aircraft modal
characteristics at a number of preflutter airspeeds. To that effect, a test aircraft is
instrumented with a range of sensors located at key locations to capture the aeroelastic
modes that participate in the structural dynamics of the aircraft, namely, in the flutter
mechanism. For instance, Fig. 1 illustrates an F-18 instrumented for flutter flight testing. At
each test point, the aircraft is excited, and the aeroelastic response is recorded. Received 21 …
characteristics at a number of preflutter airspeeds. To that effect, a test aircraft is
instrumented with a range of sensors located at key locations to capture the aeroelastic
modes that participate in the structural dynamics of the aircraft, namely, in the flutter
mechanism. For instance, Fig. 1 illustrates an F-18 instrumented for flutter flight testing. At
each test point, the aircraft is excited, and the aeroelastic response is recorded. Received 21 …
FLUTTER flight testing relies on the in-flight measurement of the aircraft modal characteristics at a number of preflutter airspeeds. To that effect, a test aircraft is instrumented with a range of sensors located at key locations to capture the aeroelastic modes that participate in the structural dynamics of the aircraft, namely, in the flutter mechanism. For instance, Fig. 1 illustrates an F-18 instrumented for flutter flight testing. At each test point, the aircraft is excited, and the aeroelastic response is recorded.
revision received 9 August 2004; accepted for publication 10 August 2004. Copyright c 2004 by the authors. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission. Copies of this paper may be made for personal or internal use, on condition that the copier pay the $10.00 per-copy fee to the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923; include the code 0021-8669/05 $10.00 in correspondence with the CCC.∗ Associate Professor, PO Box 17000, Department of Mechanical Engi-
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