In this paper, an enhanced response sensitivity approach is proposed for parameter identification of nonlinear time-delay aeroelastic systems. Two common aeroelastic models are investigated, namely, the aeroelastic system under the unsteady Theodorsen aerodynamic forces and the airfoil-store system under the steady incompressible flow. The work of this paper is mainly threefold. First, the motion equations of two aeroelastic models including time-delay signals are derived, and the response sensitivity analysis with respect to the system parameters is conducted. Then, parameter identification is formulated as a nonlinear least-squares problem, and the enhanced response sensitivity approach is developed to get the solution. Finally, numerical examples are studied to verify the effectiveness of the proposed method. The results reveal that the proposed approach can give accurate, robust, and efficient identification of the parameters for time-delay aeroelastic systems.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Parameter Identification of Nonlinear Aeroelastic System with Time-Delayed Feedback Control


    Contributors:
    Liu, G. (author) / Wang, L. (author) / Liu, J. K. (author) / Lu, Z. R. (author)

    Published in:

    AIAA Journal ; 58 , 1 ; 415-425


    Publication date :

    2020-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Nonlinear Time Delayed Feedback Control of Aeroelastic Systems: A Functional Approach

    Marzocca, P. / Librescu, L. / Silva, W. et al. | British Library Conference Proceedings | 2003


    Nonlinear Time Delayed Feedback Control of Aeroelastic Systems: A Functional Approach

    Marzocca, Piergiovanni / Librescu, Liviu / Silva, Walter | AIAA | 2003



    Parameter Identification Method for Nonsmooth Aeroelastic System

    Li, Wen-Long / Chen, Yan-Mao / Liu, Ji-Ke et al. | AIAA | 2022


    System Identification for Nonlinear Aeroelastic Models

    Popescu, Cristina / Wong, Yau / Lee, Benedict | AIAA | 2005