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Robust wing flutter suppression considering aerodynamic uncertainty
KTH, Superseded Departments, Aeronautical and Vehicle Engineering.
KTH, Superseded Departments, Aeronautical and Vehicle Engineering.
2004 (English)In: Journal of Aircraft, ISSN 0021-8669, Vol. 41, no 2, 331-334 p.Article in journal (Refereed) Published
Abstract [en]

A robust aeroservoelastic stability analysis considering frequency-domain aerodynamic uncertainty is utilized for robust control law design for flutter suppression of a flexible wing. The problem of stabilizing the wing in flutter using a minimum amount of control power is posed. For this purpose, numerical optimization is used to minimize the norm of a simple low-order controller subject to constraints on robust closed-loop stability. Robust stability is enforced in the optimization problem by posing constraints on the upper bounds on structured singular values and eigenvalues obtained from a linear stability analysis. The resulting controller is synthesized using gain scheduling, and robust wing flutter suppression is demonstrated in wind-tunnel testing.

Place, publisher, year, edition, pages
2004. Vol. 41, no 2, 331-334 p.
National Category
Vehicle Engineering
URN: urn:nbn:se:kth:diva-23324DOI: 10.2514/1.9328ISI: 000220774700017ScopusID: 2-s2.0-2342544108OAI: diva2:342022
QC 20100525 QC 20111101Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2011-11-01Bibliographically approved

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Borglund, DanNilsson, Ulrik
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