A nonlinear controller for flutter suppression: from simulation to wind tunnel testing
A nonlinear controller for flutter suppression: from simulation to wind tunnel testing
Active control for flutter suppression and limit cycle oscillation of a wind tunnel wing section is presented. Unsteady aerodynamics is modelled with strip theory and the incompressible two-dimensional classical theory of Theodorsen. A good correlation of the stability behaviour between simulation and experimental data is achieved. The paper focuses on the introduction of a nonlinearity in the plunge degree of freedom of an experimental wind tunnel test rig and the design of a nonlinear controller based on partial feedback linearization. To demonstrate the advantages of the nonlinear synthesis on linear conventional methods, a linear controller is implemented for the nonlinear system that exhibits limit cycle oscillations above the linear flutter speed. The controller based on partial feedback linearization outperforms the linear control strategy based on pole placement. Whereas feedback linearization allows to suppress fully the limit cycle oscillations, the pole placement fails to achieve any significant reduction in amplitudes
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Tantaroudas, N.D.
51093cf2-7166-4d4f-84b9-533a7027ae77
Jiffri, S.
7102044b-7b04-482f-9dac-2aa456db8dd1
Mottershead, J.E.
319e643a-d4b4-49bb-ade7-d9696ebf9a09
11 January 2014
Da Ronch, A.
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Tantaroudas, N.D.
51093cf2-7166-4d4f-84b9-533a7027ae77
Jiffri, S.
7102044b-7b04-482f-9dac-2aa456db8dd1
Mottershead, J.E.
319e643a-d4b4-49bb-ade7-d9696ebf9a09
Da Ronch, A., Tantaroudas, N.D., Jiffri, S. and Mottershead, J.E.
(2014)
A nonlinear controller for flutter suppression: from simulation to wind tunnel testing.
AIAA SciTech 2014, 55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, National Harbor, Moldova, Republic of.
11 - 15 Jan 2014.
19 pp
.
(doi:10.2514/6.2014-0345).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Active control for flutter suppression and limit cycle oscillation of a wind tunnel wing section is presented. Unsteady aerodynamics is modelled with strip theory and the incompressible two-dimensional classical theory of Theodorsen. A good correlation of the stability behaviour between simulation and experimental data is achieved. The paper focuses on the introduction of a nonlinearity in the plunge degree of freedom of an experimental wind tunnel test rig and the design of a nonlinear controller based on partial feedback linearization. To demonstrate the advantages of the nonlinear synthesis on linear conventional methods, a linear controller is implemented for the nonlinear system that exhibits limit cycle oscillations above the linear flutter speed. The controller based on partial feedback linearization outperforms the linear control strategy based on pole placement. Whereas feedback linearization allows to suppress fully the limit cycle oscillations, the pole placement fails to achieve any significant reduction in amplitudes
Text
AIAA-2014-0345.pdf
- Version of Record
More information
Published date: 11 January 2014
Venue - Dates:
AIAA SciTech 2014, 55th AIAA/ASMe/ASCE/AHS/SC Structures, Structural Dynamics, and Materials Conference, National Harbor, Moldova, Republic of, 2014-01-11 - 2014-01-15
Organisations:
Aerodynamics & Flight Mechanics Group
Identifiers
Local EPrints ID: 363683
URI: http://eprints.soton.ac.uk/id/eprint/363683
PURE UUID: 39c2af10-71b2-4271-9744-0c96113ea321
Catalogue record
Date deposited: 31 Mar 2014 08:42
Last modified: 15 Mar 2024 03:46
Export record
Altmetrics
Contributors
Author:
N.D. Tantaroudas
Author:
S. Jiffri
Author:
J.E. Mottershead
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics
