Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
On Nonlinear Wind Tunnel Aeroelastic Tests and Application of 0-1 Test for Chaos
Submission Author:
Michelle Westin , SP , Brazil
Co-Authors:
Michelle Westin, ROBERTO GIL ANNES DA SILVA, Airton Nabarrete, José Manoel Balthazar, Angelo Marcelo Tusset, Guênia Mara Vieira Ladeira
Presenter: José Manoel Balthazar
doi://10.26678/ABCM.COBEM2017.COB17-0201
Abstract
Nonlinear aeroelastic phenomena are continuously investigated in aeronautical researches. The nonlinearity nature can be aerodynamic or structural. This work will investigate a very flexible wing with high aspect ratio subjected to unsteady flow. A flutter analysis is proceeded in order to evaluate the error between the computational results and the experiment. Since the linear flutter theory considers small disturbances, nonlinear phenomena are expected. The experiment time series shall be analyzed and the evaluation if the system presents chaotic behavior will be performed through the 0-1 test.
Keywords
Flutter, 0-1test, chaos, Wind Tunnel, Aeroelasticity
