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Symmetry Approach to Extension of Flutter Boundaries via Mistuning

dc.contributor.authorShapiro, Benjamin
dc.date.accessioned2009-09-10T16:25:14Z
dc.date.available2009-09-10T16:25:14Z
dc.date.issued1998-05
dc.identifier.citationShapiro, B. Symmetry Approach to Extension of Flutter Boundaries via Mistuning. Journal of Propulsion and Power, vol14, no3, pg354-366, May-June 1998.en
dc.identifier.urihttp://hdl.handle.net/1903/9427
dc.description.abstractA general framework is presented for analyzing and optimizing stability increases resulting from mistuning. The framework given is model independent and is based primarily on symmetry arguments. Difficult practical issues are transformed to tractable mathematical questions. It is shown that mistuning analysis reduces to a block circular matrix eigenvalue/vector problem that can be solved efficiently even for large problems. Similarly, the optimization becomes a standard linear constraint quadratic programming problem and can be solved numerically. Because the methods given are model-independent, they can be applied to various models and allow the researcher to easily conclude which models accurately capture mistuning and which do not. A simple quasisteady model for flutter in a cascade is used to illustrate and validate results in this paper.en
dc.format.extent949918 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen
dc.publisherAmerican Institute of Aeronautics and Astronauticsen
dc.subjectmistuningen
dc.subjectaerodynamicsen
dc.titleSymmetry Approach to Extension of Flutter Boundaries via Mistuningen
dc.typeArticleen
dc.relation.isAvailableAtA. James Clark School of Engineeringen_us
dc.relation.isAvailableAtAerospace Engineeringen_us
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.rights.licenseReprinted with permission of the American Institute of Aeronautics and Astronautics, Inc (http://www.aiaa.org/content.cfm?pageid=2)


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