Robust Aeroelastic Control of Very Flexible Wings using Intrinsic Models

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Title: Robust Aeroelastic Control of Very Flexible Wings using Intrinsic Models
Authors: Wang, Y
Wynn, A
Palacios, R
Item Type: Conference Paper
Abstract: This paper explores the robust control of large exible wings when their dynamics are written in terms of intrinsic variables, that is, velocities and stress resultants. Assuming 2-D strip theory for the aerodynamics, the resulting nonlinear aeroelastic equations of motion are written in modal coordinates. It is seen that a system which experiences large displacements can nonetheless be accurately described by a system with only weak nonlinear couplings in this description of the wing dynamics. As result, a linear robust controller acting on a control surface is able to effectively provide gust load alleviation and flutter suppression even when the wing structure undergoes large deformations. This is numerically demonstrated on various representative test cases. © 2013 by Yinan Wang, Andrew Wynn and Rafael Palacios.
Issue Date: 2-Aug-2013
URI: http://hdl.handle.net/10044/1/11076
DOI: http://dx.doi.org/10.2514/6.2013-1485
Copyright Statement: Copyright © 2013 by Yinan Wang, Andrew Wynn and Rafael Palacios. Published by the American Institute of Aeronautics and Astronautics, Inc., with permission.
Conference Name: 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, Boston, Massachusetts
Conference Location: Boston, Massachusetts.
Publication Status: Published
Start Date: 2013-04-08
Finish Date: 2013-04-11
Conference Place: USA
Appears in Collections:Aeronautics



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