The influence of structural modelling on the dynamic behaviour of a bulker in waves
The influence of structural modelling on the dynamic behaviour of a bulker in waves
Modelling assumptions when idealising the structure of mono-hulled vessels may have an effect on the predicted wave-induced loads, when using fluid-flexible structure interaction (FFSI) models. The aim of this paper is to demonstrate the influence of structural modelling on the dynamic behaviour of a bulker in waves, a ship structure with large deck openings. Three idealisations are used, namely the original bulker with all relevant deck openings, and the open and closed ship configurations where the deck structure between deck openings is ignored and plated over, respectively. Two- and three-dimensional hydroelasticity analyses are applied for each configuration and model. Dry hull natural frequencies, mode shapes and steady state wave-induced loads, such as vertical and horizontal bending moments and twisting moment, in regular waves are presented and discussed for all configurations. It is shown that the major influence of the structural modelling occurs in the antisymmetric dynamic behaviour of this vessel.
bulk carriers, structural modelling, fluid-flexible structure interaction, finite element analysis, strip theory idealisation, pulsating source idealisation, wave-induced loads, symmetric response, antisymmetric response
25-34
Hirdaris, S.E.
3fc55841-74b3-41ff-a8f6-fe15a080aa5c
Miao, S.H.
9700ffca-6422-4e03-b71e-d377dc752937
Price, W.G.
b7888f47-e3fc-46f4-9fb9-7839052ff17c
Temarel, P.
b641fc50-5c8e-4540-8820-ae6779b4b0cf
2006
Hirdaris, S.E.
3fc55841-74b3-41ff-a8f6-fe15a080aa5c
Miao, S.H.
9700ffca-6422-4e03-b71e-d377dc752937
Price, W.G.
b7888f47-e3fc-46f4-9fb9-7839052ff17c
Temarel, P.
b641fc50-5c8e-4540-8820-ae6779b4b0cf
Hirdaris, S.E., Miao, S.H., Price, W.G. and Temarel, P.
(2006)
The influence of structural modelling on the dynamic behaviour of a bulker in waves.
Fourth International Conference on Hydroelasticity in Marine Technology, Wuxi, China.
09 - 13 Sep 2006.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
Modelling assumptions when idealising the structure of mono-hulled vessels may have an effect on the predicted wave-induced loads, when using fluid-flexible structure interaction (FFSI) models. The aim of this paper is to demonstrate the influence of structural modelling on the dynamic behaviour of a bulker in waves, a ship structure with large deck openings. Three idealisations are used, namely the original bulker with all relevant deck openings, and the open and closed ship configurations where the deck structure between deck openings is ignored and plated over, respectively. Two- and three-dimensional hydroelasticity analyses are applied for each configuration and model. Dry hull natural frequencies, mode shapes and steady state wave-induced loads, such as vertical and horizontal bending moments and twisting moment, in regular waves are presented and discussed for all configurations. It is shown that the major influence of the structural modelling occurs in the antisymmetric dynamic behaviour of this vessel.
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Published date: 2006
Venue - Dates:
Fourth International Conference on Hydroelasticity in Marine Technology, Wuxi, China, 2006-09-09 - 2006-09-13
Keywords:
bulk carriers, structural modelling, fluid-flexible structure interaction, finite element analysis, strip theory idealisation, pulsating source idealisation, wave-induced loads, symmetric response, antisymmetric response
Organisations:
Fluid Structure Interactions Group
Identifiers
Local EPrints ID: 43904
URI: http://eprints.soton.ac.uk/id/eprint/43904
PURE UUID: 038a7825-52e2-4811-b410-30a3d47772ee
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Date deposited: 06 Feb 2007
Last modified: 12 Dec 2021 02:48
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Contributors
Author:
S.E. Hirdaris
Author:
S.H. Miao
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