This paper designs an incremental nonlinear dynamic inversion control law for free-flying flexible aircraft, which can regulate rigid-body motions, alleviate gust loads, reduce the wing root bending moment, and suppress elastic modes. By fully exploring the sensor measurements, the model dependency of the proposed control law can be reduced while maintaining desirable robustness, which simplifies the implementation process and reduces the onboard computational load. The elastic states are observed online from accelerometer measurements, with a Padé approximation to model the pure time delay. Theoretical analyses based on the Lyapunov methods and the nonlinear system perturbation theory show that the proposed control has inherent robustness to model uncertainties, external disturbances, and sudden actuator faults. These merits are demonstrated by time-domain simulations in various spatial turbulence and gust fields, as well as by a Monte Carlo study.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Flexible Aircraft Gust Load Alleviation with Incremental Nonlinear Dynamic Inversion


    Contributors:

    Published in:

    Publication date :

    2019-07-01




    Type of media :

    Conference paper , Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Flexible Aircraft Gust Load Alleviation with Incremental Nonlinear Dynamic Inversion

    Wang, Xuerui / Van Kampen, Erik-Jan / De Breuker, Roeland et al. | AIAA | 2018


    Flexible Aircraft Gust Load Alleviation with Incremental Nonlinear Dynamic Inversion (AIAA 2018-0774)

    Wang, Xuerui / Van Kampen, Erik-Jan / De Breuker, Roeland et al. | British Library Conference Proceedings | 2018