Trends to lower structural fraction of aircraft increase flexibility effects. Higher bandwidth control systems combined with these more flexible structures cause more aeroservoelastic interactions. Active, closed-loop control systems allow greater flexibility. To take advantage of this design possibility, an integrated ASE model is needed for conceptual and preliminary design stages of aircraft. This report seeks to define the equations of motion of a flexible aircraft from first principles to aid future discussions between experts in the specialties which make up ASE: aerodynamics, controls, and structures. This theoretical report documents the development of the equations, and states under what conditions the assumptions and approximations are accurate. It consists of 5 sections on different technical areas and a summary section: 1) Linearization of flexible aircraft hybrid-coordinate dynamic equations and inclusion of aerodynamic and gravitational loads; 2) Derivation of equations of motion and stability derivatives for a flexible aircraft vehicle; 3) Aerodynamics for aeroservoelasticity; 4) Model-order reduction for linear systems; and 5) Hydraulic actuator equations for aeroservoelastic modeling. Flight control systems; Servomechanisms. (edc)


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Modeling Flexible Aircraft for Flight Control Design


    Beteiligte:
    E. C. Bekir (Autor:in) / W. J. Davis (Autor:in) / A. Goforth (Autor:in) / H. Hassig (Autor:in) / E. J. Horowitz (Autor:in)

    Erscheinungsdatum :

    1989


    Format / Umfang :

    434 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Flight Control of Flexible Aircraft

    Nguyen, Nhan T. | NTRS | 2017


    Numerical Aspects of Nonlinear Flexible Aircraft Flight Dynamics Modeling

    Simpson, R.J. / Palacios, R. / American Institute of Aeronautics and Astronautics; American Society of Mechanical Engineers; American Society of Civil Engineers | British Library Conference Proceedings | 2013


    Numerical aspects of nonlinear flexible aircraft flight dynamics modeling

    Simpson, Robert J. / Palacios, Rafael | AIAA | 2013


    Flight Dynamic Simulation Modeling of Large Flexible Tiltrotor Aircraft

    Juhasz, O. / Celi, R. / Ivler, C. et al. | British Library Conference Proceedings | 2012


    Design of sliding mode flight control system for a flexible aircraft

    Mohamed, Majeed / Gopakumar, Madhavan | SAGE Publications | 2022