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Use of the finite element displacement method to solve solid-fluid interaction vibration problems [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 1978.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
Pages: 30 : digital, PDF file
Additional Creators:
Babcock & Wilcox Company, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
It is shown through comparison to experimental, theoretical, and other finite element formulations that the finite element displacement method can solve accurately and economically a certain class of solid-fluid eigenvalue problems. The problems considered are small displacements in the absence of viscous damping and are 2-D and 3-D in nature. In this study the advantages of the finite element method (in particular the displacement formulation) is apparent in that a large structure consisting of the cylinders, support flanges, fluid, and other experimental boundaries could be modeled to yield good correlation to experimental data. The ability to handle large problems with standard structural programs is the key advantage of the displacement fluid method. The greatest obstacle is the inability of the analyst to inhibit those rotational degrees of freedom that are unnecessary to his fluid-structure vibration problem. With judicious use of element formulation, boundary conditions and modeling, the displacement finite element method can be successfully used to predict solid-fluid response to vibration and seismic loading.
Report Numbers:
E 1.99:conf-781202--33
conf-781202--33
Subject(s):
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Note:
Published through SciTech Connect.
01/01/1978.
"conf-781202--33"
ASME meeting, San Francisco, CA, USA, 10 Dec 1978.
Brown, S. J.; Hsu, K. H.
Funding Information:
EW-76-C-15-0003
View MARC record | catkey: 14116564