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 soft-exponential 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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ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering
June 15–20, 2008
Estoril, Portugal
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4818-0
PROCEEDINGS PAPER
Finite Element Simulations and Experimental Investigations of Simple 2-D Geometries in Slamming
Adrian Constantinescu,
Adrian Constantinescu
University of Lie`ge, Lie`ge, Belgium
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Philippe Rigo
Philippe Rigo
University of Lie`ge; FNRS Belgium, Lie`ge, Belgium
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Adrian Constantinescu
University of Lie`ge, Lie`ge, Belgium
Alain Neme
ENSIETA, Brest, France
Nicolas Jacques
ENSIETA, Brest, France
Philippe Rigo
University of Lie`ge; FNRS Belgium, Lie`ge, Belgium
Paper No:
OMAE2008-57482, pp. 475-484; 10 pages
Published Online:
July 27, 2009
Citation
Constantinescu, A, Neme, A, Jacques, N, & Rigo, P. "Finite Element Simulations and Experimental Investigations of Simple 2-D Geometries in Slamming." Proceedings of the ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. Volume 1: Offshore Technology. Estoril, Portugal. June 15–20, 2008. pp. 475-484. ASME. https://doi.org/10.1115/OMAE2008-57482
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