This paper presents an initial step toward model identification from wind tunnel data for an airliner configuration. Two approaches to modeling a transport configuration are considered and applied to both steady and large-amplitude forced-oscillation wind tunnel data taken over a wide range of angles of attack. Only limited conclusions could be drawn from this initial data set. Although model estimated time histories of normal force and pitching moment agree reasonably well with the corresponding measured values, model damping parameters did not, for some cases, have values consistent with small amplitude oscillatory data. In addition, large parameter standard errors implied poor information content for model structure determination and parameter estimation. Further investigation of the modeling problem for more general aerodynamic models is recommended with close attention to experiment design for obtaining parameters with high accuracy.


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    Title :

    Estimation of Longitudinal Unsteady Aerodynamics of a Wing-Tail Combination From Wind Tunnel Data


    Contributors:

    Conference:

    AIAA Guidance, Navigation, and Control Conference and Exhibit ; 2006 ; Keystone, CO, United States


    Publication date :

    2006-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





    AIAA-2006-6154 Estimation of Longitudinal Unsteady Aerodynamics of a Wing-Tail Combination from Wind Tunnel Data

    Murphy, P. / Klein, V. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2006




    Unsteady Aerodynamics in Model-Based Wind Estimation from Fixed-Wing Aircraft Motion

    Halefom, Mekonen H. / Hopwood, Jeremy W. / Woolsey, Craig A. | AIAA | 2024