Publisher DOI: | 10.1115/1.4007251 | Title: | Structural-acoustic vibration problems in the presence of strong coupling | Language: | English | Authors: | Voß, Heinrich Stammberger, Markus |
Issue Date: | 28-Nov-2012 | Source: | Journal of Pressure Vessel Technology, Transactions of the ASME 135 (1): 11303 - (2013-01-01) | Abstract (english): | 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 multilevel substructuring (AMLS) method for huge fluid-solid structures. The reliability and efficiency of the method are demonstrated by the free vibrations of a structure completely filled with water. © 2013 American Society of Mechanical Engineers. |
URI: | http://hdl.handle.net/11420/10384 | ISSN: | 1528-8978 | Institute: | Mathematik E-10 | Document Type: | Article | Journal: | Journal of pressure vessel technology |
Appears in Collections: | Publications without fulltext |
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