Some advances in the study of classical-flutter-based generators

This work focuses on wind-energy harvesting from two-degree-of-freedom vibrations induced by the classical-flutter instability. The main features of the system response, both at the incipient motion and during the large-amplitude limit-cycle oscillations, are discussed. The results point out some peculiar (and non-intuitive) behaviours, ruled by the still-air frequency ratio and the damping of the translational motion component, the latter simulating the operation of a conversion apparatus.