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Robust aeroelastic stability analysis considering frequency-domain aerodynamic uncertainty
KTH, Superseded Departments, Aeronautical and Vehicle Engineering.
2003 (English)In: Journal of Aircraft, ISSN 0021-8669, Vol. 40, no 1, 189-193 p.Article in journal (Refereed) Published
Abstract [en]

The problem of modeling frequency-domain aerodynamic uncertainty for a slender wing structure is investigated. Based on an unsteady lifting-line theory used for the generalized aerodynamic forces, a quite versatile uncertainty description with a clear physical interpretation is proposed. The uncertainty description is easily put in a form suitable for application of the mu framework in robust linear control. Because only frequency response matrices are required for the mu computations, the proposed uncertainty description can be used for robust stability and performance analysis without rational function approximations of the aerodynamic transfer function matrices. The usefulness of the uncertainty description and the methods available for robust aeroelastic stability analysis is demonstrated by performing aeroelastic wind-tunnel experiments.

Place, publisher, year, edition, pages
2003. Vol. 40, no 1, 189-193 p.
URN: urn:nbn:se:kth:diva-22257ISI: 000181038800025OAI: diva2:340955
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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