Experimental benchmark of a free plunging wing with imposed flap oscillations

Model-form and predictive uncertainty quantification in linear aeroelasticity

“…We consider the canonical flutter problem of an oscillating typical airfoil section in an incompressible flow. Although the Theodorsen's lift model (Theodorsen, 1935;Bisplinghoff et al, 1955;Fung, 1969;Leishman, 2006) was developed three quarters of a century ago, this frequency-domain based aerodynamical operator is still very popular since it provides a simple but accurate description of the unsteady aerodynamic loads (Olsman et al, 2010;Amandolese et al, 2013;Sterenborg et al, 2014). Moreover, state-space representations for this lift model can be derived to develop feedback control laws and optimal controllers by using rational function approximations to the Theodorsen's transfer function (Jones, 1938;Vepa, 1977;Coller and Chamara, 2004;Leishman and Nguyen, 1989;Brunton and Rowley, 2013).…”