DECOUPLING PROCEDURE FOR THE MODAL ANALYSIS OF STRUCTURES IN CONTACT WITH INCOMPRESSIBLE FLUIDS.

Antoniadis, I; Kanarachos, A

dc.contributor.author	Antoniadis, I	en
dc.contributor.author	Kanarachos, A	en
dc.date.accessioned	2014-03-01T01:06:43Z
dc.date.available	2014-03-01T01:06:43Z
dc.date.issued	1987	en
dc.identifier.issn	0748-8025	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/9587
dc.subject	Incompressible Fluid	en
dc.subject	Modal Analysis	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Mathematics, Applied	en
dc.subject.other	MATHEMATICAL TECHNIQUES - Vectors	en
dc.subject.other	VIBRATIONS - Analysis	en
dc.subject.other	DECOUPLING PROCEDURE	en
dc.subject.other	INCOMPRESSIBLE FLUIDS	en
dc.subject.other	HYDRODYNAMICS	en
dc.title	DECOUPLING PROCEDURE FOR THE MODAL ANALYSIS OF STRUCTURES IN CONTACT WITH INCOMPRESSIBLE FLUIDS.	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/cnm.1630030611	en
heal.identifier.secondary	http://dx.doi.org/10.1002/cnm.1630030611	en
heal.language	English	en
heal.publicationDate	1987	en
heal.abstract	A decoupling procedure is described for the modal analysis of structures in contact with incompressible fluids. According to this procedure, the problem can be decoupled in two main subproblems, each defined only on the structure or the fluid domain. First, a set of basis vectors for the structural displacements - and the corresponding 'mass' and 'stiffness' terms - must be computed. Then a set of potential (Laplacian) problems for the fluid must be solved, using the structural basis vectors in the place of the structural displacements at the normal pressure derivative (Neumann) boundary conditions on the fluid-structure interface. If the 'in vacuum' structural eigenmodes are used as basis vectors, some important computational and physical advantages result. Numerical examples verify the efficiency of the approach.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	Communications in Applied Numerical Methods	en
dc.identifier.doi	10.1002/cnm.1630030611	en
dc.identifier.isi	ISI:A1987K970400010	en
dc.identifier.volume	3	en
dc.identifier.issue	6	en
dc.identifier.spage	507	en
dc.identifier.epage	517	en