Aircraft frequency adaptive modal suppression system
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United States of America Patent
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Jan 19, 1999
Issued Date -
N/A
app pub date -
Dec 30, 1996
filing date -
Jun 28, 1993
priority date (Note) -
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Abstract
An aircraft modal suppression system which recognizes that the frequency and phase of the body bending mode varies when the weight of the aircraft differs from the design gross weight. An active damper notch filter which is tabulated as a function of aircraft gross weight is utilized, thereby enabling not only the frequency, but also the width and depth of the notch filter to vary according to the gross weight of the aircraft.
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