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Slamming load on trimaran cross section with rigid and flexible arches

Slamming load on trimaran cross section with rigid and flexible arches
Slamming load on trimaran cross section with rigid and flexible arches
In this paper, the mixed mode function–modified MPS method was adopted to simulate the water-structure dynamic interaction during slamming impacts on the cross deck of trimaran. The water was considered as an incompressible inviscid fluid and the “conceptual particle” model was used to enhance the stability of the intense free surface interaction during the “filling-up” process under the cross deck. The numerical model for the coupled rigid and flexible modal superposition model was derived for the dynamics of the trimaran hull with rigid and flexible arches, and the flexible arch was simplified by a beam structure. The fluid and structure solvers were coupled in a standard iterative way. The results for rigid-body arch cases obtained with the use of improved free surface condition show good improvement, in comparison to the experiment data. From the study of flexible arch cases with different flexibilities, it is found that the relatively soft structure can reduce the local pressure and slamming load.
Trimaran, moving particle semi-implicit (MPS) method, slamming, flexible arch, Fluid structure interaction
0951-8339
227-241
Sun, Zhe
59e9a029-3204-41bc-8543-faa8b25f4a4b
Jiang, Yi-chen
0a385a1b-dd53-480f-833e-9dd1dc9f2f89
Zhang, Gui-yong
729e770f-c782-4d4e-9c83-c20d8b2a2ed5
Zong, Zhi
2c3cf193-2757-446e-9021-ff9282838e63
Xing, Jing
d4fe7ae0-2668-422a-8d89-9e66527835ce
Djidjeli, Kamal
94ac4002-4170-495b-a443-74fde3b92998
Sun, Zhe
59e9a029-3204-41bc-8543-faa8b25f4a4b
Jiang, Yi-chen
0a385a1b-dd53-480f-833e-9dd1dc9f2f89
Zhang, Gui-yong
729e770f-c782-4d4e-9c83-c20d8b2a2ed5
Zong, Zhi
2c3cf193-2757-446e-9021-ff9282838e63
Xing, Jing
d4fe7ae0-2668-422a-8d89-9e66527835ce
Djidjeli, Kamal
94ac4002-4170-495b-a443-74fde3b92998

Sun, Zhe, Jiang, Yi-chen, Zhang, Gui-yong, Zong, Zhi, Xing, Jing and Djidjeli, Kamal (2019) Slamming load on trimaran cross section with rigid and flexible arches. Marine Structures, 66, 227-241. (doi:10.1016/j.marstruc.2019.04.010).

Record type: Article

Abstract

In this paper, the mixed mode function–modified MPS method was adopted to simulate the water-structure dynamic interaction during slamming impacts on the cross deck of trimaran. The water was considered as an incompressible inviscid fluid and the “conceptual particle” model was used to enhance the stability of the intense free surface interaction during the “filling-up” process under the cross deck. The numerical model for the coupled rigid and flexible modal superposition model was derived for the dynamics of the trimaran hull with rigid and flexible arches, and the flexible arch was simplified by a beam structure. The fluid and structure solvers were coupled in a standard iterative way. The results for rigid-body arch cases obtained with the use of improved free surface condition show good improvement, in comparison to the experiment data. From the study of flexible arch cases with different flexibilities, it is found that the relatively soft structure can reduce the local pressure and slamming load.

Text
rigid and flex trimaran arches-revision v1.0-20181223 - Accepted Manuscript
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More information

Accepted/In Press date: 29 April 2019
e-pub ahead of print date: 13 May 2019
Published date: July 2019
Keywords: Trimaran, moving particle semi-implicit (MPS) method, slamming, flexible arch, Fluid structure interaction

Identifiers

Local EPrints ID: 431798
URI: http://eprints.soton.ac.uk/id/eprint/431798
ISSN: 0951-8339
PURE UUID: a5dc271b-15d1-464b-8fb8-619cb8921e19

Catalogue record

Date deposited: 17 Jun 2019 16:30
Last modified: 07 Oct 2020 04:52

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Contributors

Author: Zhe Sun
Author: Yi-chen Jiang
Author: Gui-yong Zhang
Author: Zhi Zong
Author: Jing Xing
Author: Kamal Djidjeli

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