Instytut Budownictwa Wodnego
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Essay #8808 details

ATTRIBUTEVALUE
typeA
database id8808
titleVibrations of a horizontal band elastic plate submerged in fluid of constant depth
authorsSzmidt K.1, Hedzielski B.1
affiliations
pages191 — 214
notesKopia w oprac. Tp4448
DOI10.1515/heem-2016-0012
full text linkhttp://www.ibwpan.gda.pl/storage/app/media/ahem/ahem63str191.pdf
keywordselastic plate, free vibrations, forced vibrations, eigenfrequencies, co-vibrating mass of fluid
abstractsThe paper deals with free and forced vibrations of a horizontal thin elastic plate submerged in an infinite layer of fluid of constant depth. In free vibrations, the pressure load on the plate results from assumed displacements of the plate. In forced vibrations, the fluid pressure is mainly induced by water waves arriving at the plate. In both cases, we have a coupled problem of hydrodynamics in which the plate and fluid motions are coupled through boundary conditions at the plate surface. At the same time, the pressure load on the plate depends on the gap between the plate and the fluid bottom. The motion of the plate is accompanied by the fluid motion. This leads to the so-called co-vibrating mass of fluid, which strongly changes the eigenfrequencies of the plate. In formulation of this problem, a linear theory of small deflections of the plate is employed. In order to calculate the fluid pressure, a solution of Laplace’s equation is constructed in the doubly connected infinite fluid domain. To this end, this infinite domain is divided into sub-domains of simple geometry, and the solution of the problem equation is constructed separately for each of these domains. Numerical experiments are conducted to illustrate the formulation developed in this paper.
attributes [reviewed] [scientific]
languageen
points14
PART OF
typeC
database id8831
year2016
seriesArchives of Hydro-Engineering and Environmental Mechanics
issueVol. 63, No.2-3
publisherWydawnictwo IBW PAN

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