Robust Flutter Analysis Considering Mode Shape Variations
2008 (English)In: Journal of Aircraft, ISSN 0021-8669, Vol. 45, no 3, 1070-1074 p.Article in journal (Refereed) Published
A study was conducted to perform robust flutter analysis, considering mode shape variation problems. The study demonstrated that the assumption of a fixed modal base can lead to incorrect flutter results. It was demonstrated the nominal model can act as the basis for performing robust flutter analysis. The study assumed that the critical flutter mode shape can be represented by a linear combination of eigenmodes. The study also demonstrated that the modal base method can be used, to solve the problem of mode shape variations. It was also demonstrated that results of mode shape variation problems can be improved significantly, by adding structural eigenvectors.
Place, publisher, year, edition, pages
2008. Vol. 45, no 3, 1070-1074 p.
Lead; Modal analysis; Zinc; Eigen-modes; flutter analysis; Linear combination (LC); Mode shapes
IdentifiersURN: urn:nbn:se:kth:diva-7271DOI: 10.2514/1.28728ISI: 000256688600032ScopusID: 2-s2.0-46449130257OAI: oai:DiVA.org:kth-7271DiVA: diva2:12230
QC 20100713. Uppdaterad från Submitted till Published 20100713.2007-06-012007-06-012010-07-13Bibliographically approved