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Non-iterative solution of the flutter eigenvalue problem using Laplace-domain aerodynamic loads.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Flight Dynamics.ORCID iD: 0000-0002-3199-8534
2009 (English)In: IFASD 2009, 2009Conference paper (Other academic)
Abstract [en]

An efficient method for the non-iterative solution of the nonlinear flutter eigenvalue problem is presented. The properties of the piecewise quadratic decomposition employed make it particularly suitable for the parallel solution of aeroelastic stability problems where interaction of rigid-body and elastic motion is of interest or where the flutter damping must be obtained with accuracy, e.g. when comparison to flutter flight testing is intended. Ad- ditionally, the method allows the use of Laplace-domain aerodynamics if available. The paper presents a realistically complex test case which exposes some of the advantages and current shortcoming of the proposed solution procedure.

Place, publisher, year, edition, pages
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Aerospace Engineering
URN: urn:nbn:se:kth:diva-77691OAI: diva2:491957
International Forum on Aeroelasticity and Structural Dynamics 2009, Seattle, USA
FQCAvailable from: 2012-02-15 Created: 2012-02-07 Last updated: 2012-02-15Bibliographically approved

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