Stability analysis of high performance aircraft must account for errors in the system model. A method for computing flutter margins that incorporates flight data has been developed using robust stability theory. This paper considers applying this method to update flutter margins during a post-flight or on-line analysis. Areas of modeling uncertainty that arise when using flight data with this method are investigated. The amount of conservatism in the resulting flutter margins depends on the flight data sets used to update the model. Post-flight updates of flutter margins for an F/A-18 are presented along with a simulation of on-line updates during a flight test.


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    Title :

    Utilizing Flight Data to Update Aeroelastic Stability Estimates


    Contributors:
    Lind, Rick (author) / Brenner, Marty (author)

    Conference:

    Atmospheric Flight Mechanics Conference ; 1997 ; New Orleans, LA, United States


    Publication date :

    1997-01-01


    Type of media :

    Preprint


    Type of material :

    No indication


    Language :

    English




    Utilizing Flight Data to Update Aeroelastic Stability Estimates

    Lind, R. / Brenner, M. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 1997



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