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Finite element simulations and experimental investigations of simple 2-D geometrics in slamming Constantinescu, A.; Nême, A.; Jacques, N.; Rigo, P. (2008). Finite element simulations and experimental investigations of simple 2-D geometrics in slamming, in: ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering, June 15–20, 2008, Estoril, Portugal - Volume 1: Offshore Technology. pp. 475-484. https://dx.doi.org/10.1115/OMAE2008-57482 In: (2008). ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering, June 15–20, 2008, Estoril, Portugal - Volume 1: Offshore Technology. ASME: New York. ISBN 978-0-7918-4818-0.

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Beschikbaar in	Auteurs
VLIZ [ aanvragen ]
Documenttype: Congresbijdrage

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Trefwoord

Marien/Kust

Author keywords

slamming; fluid-structure interaction; hydro-elastic analysis;ABAQUS/Explicit; shock press

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Auteurs		Top
Constantinescu, A. Nême, A. Jacques, N. Rigo, P.

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Abstract

This paper presents a numerical and experimental study of fluid structure interaction during the impact of a solid body on a water surface. The main request is the modeling of the slamming forces acting on the ship structure in severe sea conditions. The numerical work uses the finite element modeling of a structure impact with free water surface. The first analysis use the commercial finite element code ABAQUS/Standard and combines the assumption of small displacements for the ideal fluid and the solid with an asymptotic formulation for accurate pressure evaluation on the boundary of the wet surface. For deformable strickers, two methods are developed. The first method employs a weak fluid-structure coupling. The second method, more accurate, uses an implicit fluid-structure coupling using a convergence criterion. The second analysis is represented by the simulations of slamming with ABAQUS/Explicit. The simulation uses a viscous, compressible fluid and a softexponential law to manage the contact between fluid and solid. The results in term of pressure and total effort applied to the rigid structure are in good agreement with first numerical results and especially with the FLUENT CFD. In order to validate the numerical methods, slamming experimental tests were carried out with a new hydraulic shock press at the ENSIETA laboratory.

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