Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10416526 | Journal of Fluids and Structures | 2005 | 19 Pages |
Abstract
Two basic issues related to the open/closed-loop aeroelasticity of 2-D lifting surfaces in an incompressible flow field are considered. These concern the subcritical aeroelastic response to external time-dependent excitations, and the flutter instability of actively controlled airfoils involving a time-delayed feedback control. Results and comparisons regarding the flutter instability obtained via the first Volterra kernel in conjunction with a frequency eigenvalue analysis are presented. In the same context, the implications on the instability boundary and aeroelastic response of the presence of time-delays in the feedback control are investigated and pertinent conclusions are supplied.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
L. Librescu, P. Marzocca, W.A. Silva,