This thesis addresses the application issues raised implementing flight control designs derived from optimal control theory and the challenges in obtaining acceptable handling qualities when using these techniques. Using the USAF TPS FCS project as the controller architecture, four controllers were designed using classical methods, and H2, H3, and mixed H2/H optimal control theory. These designs were implemented in the Calspan VSS II Learjet, simulating unstable aircraft longitudinal dynamics and a limited handling qualities flight test evaluation was performed. The design phase found the optimal control techniques, as applied, difficult to design to handling qualities specifications. The H2, H3 and mixed H2/H controllers were unstable and often contained high frequency poles, which were difficult to implement. The flight test rated the designs acceptable on approach, but no handling qualities level for approach was determined.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Modern Flight Control Design, Implementation, and Flight Test


    Contributors:

    Publication date :

    1997


    Size :

    141 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Design, Implementation and Flight-Test of Incremental Backstepping Flight Control Laws (AIAA 2018-0384)

    van Ekeren, Wim / Looye, Gertjan / Kuchar, Richard O. et al. | British Library Conference Proceedings | 2018





    Flight test of modern fighter

    Ziquan, Z. | British Library Online Contents | 2003