An airplane model is usually obtained from preliminary wind tunnel experiments and CFD analysis. These models are then tuned from flight test measurements using system identification, and are used for airplane stability assessment and control design. However, sometimes no or little preliminary data and documentation are available and flight test identification is the main mean to obtain the model needed for control system design. If so, the purpose of this paper is to identify the grey-box model of an airplane without initial data using a combination of the least square and output error estimation methods. A grey-box model identification is preferred because it gives aerodynamic parameter estimations of the airplane. Before flight test data are available, this method was applied to the Cessna Citation X business airplane's high fidelity simulations and carried out with human-in-the-loop on a professional level D flight dynamics simulator designed and manufactured by CAE Inc. More than 1,000 flight simulations were made for different airplane configurations in speeds (140 to 240 kt), altitudes (10,000 to 46,300 ft), masses (24,000 to 33,000 lb) and longitudinal center of gravity positions (17 to 34% of the mean aerodynamic chord). Promising results were obtained for the short period dynamic motion, which allowed the Cessna Citation X's longitudinal stability assessment. The identification method that was used and tested on the research simulator will be used for Hydra Technologies S4 Ehéctatl UAV model identification from real flight test data.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Cessna Citation X Airplane Grey-Box Model Identification without Preliminary Data


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2014 Aerospace Systems and Technology Conference ; 2014



    Publication date :

    2014-09-16




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Cessna Citation X Airplane Grey-Box Model Identification without Preliminary Data

    Hamel, C. / Botez, R. / Ruby, M. et al. | British Library Conference Proceedings | 2014


    Analysis: Cessna Citation Bravo

    George, F. | British Library Online Contents | 1997


    Cessna sort deux Citation

    Online Contents | 2014


    Cessna - Citation Bravo fliegt

    Online Contents | 1995


    Cessna Citation X Engine Model Identification from Flight Tests

    Ghazi, Georges / Messi Achigui, Joseph / Botez, Ruxandra | SAE Technical Papers | 2015