Hydroelastic vibration analysis of plates partially submerged in fluid with an isogeometric FE-BE approach
Hydroelastic vibration analysis of plates partially submerged in fluid with an isogeometric FE-BE approach
The hydroelastic vibration analysis of clamped rectangular plates both vertically
and horizontally submerged in fluid is studied by isogeometric FE/BE approach
in this paper. By adopting the linear hydroelasticity theory, the computational
procedure of the fluid-structure interaction problem is divided into two parts.
In the first part, dynamic analysis of the structure in vacuo conditions and in
the absence of external forces is carried out by NURBS-based isogeometric -
finite element method (IGAFEM). Then, in the second part, it is assumed that fluid is inviscid, incompressible and irrotational, and fluid forces directly correspond to inertial effects of the structure. Thus, displacements of the elastic
structure due to modal vibrations are in same phase with the acceleration of the
fluid particles, and fluid forces on the freely vibrating structure are obtained by
NURBS-based isogeometric boundary element method (IGABEM). In order to
verify the accuracy of the present methodology, a convergence study is carried
out with the available numerical and experimental data providing the generalized added mass coefficients, and the effects of the thickness and aspect ratio are also investigated. It is found that the numerical results are in good agreement with the previous results, thus validating the proposed approach.
Isogeometric Analysis, hydroelasticity, finite element method, boundary element method
316-329
Yildizdag, M.Erden
cf2161e2-0619-4d52-88ed-c7ec82ea52b4
Ardic, Ibrahim
e94cc112-b414-40c0-b6d5-517d23c93b48
Demirtas, Murat
b961da3a-430f-4acc-a37d-11ee6edb9cd3
Ergin, Ahmet
2f555521-de15-4cc2-9683-3a869ec97944
Yildizdag, M.Erden
cf2161e2-0619-4d52-88ed-c7ec82ea52b4
Ardic, Ibrahim
e94cc112-b414-40c0-b6d5-517d23c93b48
Demirtas, Murat
b961da3a-430f-4acc-a37d-11ee6edb9cd3
Ergin, Ahmet
2f555521-de15-4cc2-9683-3a869ec97944
Yildizdag, M.Erden, Ardic, Ibrahim, Demirtas, Murat and Ergin, Ahmet
(2018)
Hydroelastic vibration analysis of plates partially submerged in fluid with an isogeometric FE-BE approach.
Ocean Engineering, .
(doi:10.1016/j.oceaneng.2018.12.008).
Abstract
The hydroelastic vibration analysis of clamped rectangular plates both vertically
and horizontally submerged in fluid is studied by isogeometric FE/BE approach
in this paper. By adopting the linear hydroelasticity theory, the computational
procedure of the fluid-structure interaction problem is divided into two parts.
In the first part, dynamic analysis of the structure in vacuo conditions and in
the absence of external forces is carried out by NURBS-based isogeometric -
finite element method (IGAFEM). Then, in the second part, it is assumed that fluid is inviscid, incompressible and irrotational, and fluid forces directly correspond to inertial effects of the structure. Thus, displacements of the elastic
structure due to modal vibrations are in same phase with the acceleration of the
fluid particles, and fluid forces on the freely vibrating structure are obtained by
NURBS-based isogeometric boundary element method (IGABEM). In order to
verify the accuracy of the present methodology, a convergence study is carried
out with the available numerical and experimental data providing the generalized added mass coefficients, and the effects of the thickness and aspect ratio are also investigated. It is found that the numerical results are in good agreement with the previous results, thus validating the proposed approach.
Text
Article1
- Accepted Manuscript
More information
Accepted/In Press date: 5 December 2018
e-pub ahead of print date: 12 December 2018
Keywords:
Isogeometric Analysis, hydroelasticity, finite element method, boundary element method
Identifiers
Local EPrints ID: 450750
URI: http://eprints.soton.ac.uk/id/eprint/450750
ISSN: 0029-8018
PURE UUID: 6a4739d9-387e-40e4-99d2-93ac9cc50176
Catalogue record
Date deposited: 10 Aug 2021 16:30
Last modified: 17 Mar 2024 06:45
Export record
Altmetrics
Contributors
Author:
M.Erden Yildizdag
Author:
Murat Demirtas
Author:
Ahmet Ergin
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics