Free Vibrations of Fluid–Solid Structures With Strong Coupling
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Free vibrations of fluid-solid structures are governed by unsymmetric eigenvalue problems. A common approach which works fine for weakly coupled systems is to project the problem to a space spanned by modes of the uncoupled system. For strongly coupled systems however the approximation properties are not satisfactory. This paper reports on a framework for taking advantage of the structure of the unsymmetric eigenvalue problem allowing for a variational characterization of its eigenvalues, and structure preserving iterative projection methods. We further cover an adjusted automated multi-level sub-structuring method for huge fluid-solid structures.
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2018 ◽
Vol 20
(06)
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pp. 1750095
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2013 ◽
Vol 19
(3)
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pp. 754-779
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2012 ◽
Vol 11
(3)
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pp. 861-883
2020 ◽
Vol 269
(3)
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pp. 2328-2385
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