Efficient computation of robust flutter boundaries using the mu-k method
2006 (English)In: Journal of Aircraft, ISSN 0021-8669, Vol. 43, no 6, 1763-1769 p.Article in journal (Refereed) Published
A simple and efficient algorithm for robust flutter analysis is presented. First, a general linear fractional transformation formulation of the mu-k method is provided, making it straightforward to pose the uncertain flutter equation in a form suitable for structured singular value analysis. The new formulation establishes a close connection between mu-k flutter analysis and traditional frequency-domain flutter analysis, which is used to formulate an efficient algorithm for computation of robust flutter boundaries. The proposed method is successfully applied to an F-16 sample test case with uncertain external stores aerodynamics, showing that standard tools for structural dynamics and unsteady aerodynamics can be used to perform robust flutter analysis with only modest additional modeling.
Place, publisher, year, edition, pages
2006. Vol. 43, no 6, 1763-1769 p.
IdentifiersURN: urn:nbn:se:kth:diva-16224DOI: 10.2514/1.20190ISI: 000242989800019ScopusID: 2-s2.0-33846046340OAI: oai:DiVA.org:kth-16224DiVA: diva2:334266
QC 201005252010-08-052010-08-05Bibliographically approved