Identification of nonlinear aeroelastic systems based on the Volterra theory: progress and opportunities.

*(English)*Zbl 1104.70014Summary: We present the identification of nonlinear aeroelastic systems based on Volterra theory of nonlinear systems. Recent applications of the theory to problems in computational and experimental aeroelasticity are reviewed. Computational results include the development of computationally efficient reduced-order models using an Euler/Navier-Stokes flow solver and the analytical derivation of Volterra kernels for a nonlinear aeroelastic system. Experimental results include the identification of aerodynamic impulse responses, the application of higher-order spectra to wind-tunnel flutter data, and the identification of nonlinear aeroelastic phenomena from flight flutter test data of the active aeroelastic wing aircraft.

##### MSC:

70K99 | Nonlinear dynamics in mechanics |

93C95 | Application models in control theory |

74F10 | Fluid-solid interactions (including aero- and hydro-elasticity, porosity, etc.) |

76G25 | General aerodynamics and subsonic flows |

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