A method based on parametric reduced-order models to efficiently predict the transient response of aeroelastic systems with concentrated structural nonlinearities is presented. The approach approximates the nonlinear response in a piecewise-linear manner through time integration of sub-linear reduced-order models; these are parameterized with respect to the nonlinearity and are efficiently obtained by balanced truncation and interpolation. The procedure is applied to the optimization of a wing tip device for passive loads alleviation which features a nonlinear stiffness, showing the effectiveness and efficiency of the methodology.
Parametric reduced-order model approach for simulation and optimization of aeroelastic systems with structural nonlinearities
2016
Article (Journal)
English
Static aeroelastic analysis including geometric nonlinearities based on reduced order model
British Library Online Contents | 2017
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