FLUID-STRUCTURE-SOIL INTERACTION OF A MOORED WAVE ENERGY DEVICE: Fluid-structure-soil interaction of a moored wave energy device
FLUID-STRUCTURE-SOIL INTERACTION OF A MOORED WAVE ENERGY DEVICE: Fluid-structure-soil interaction of a moored wave energy device
This paper explores the response of a wave energy device during extreme and operational conditions and the effect of this response on the geotechnical stability of the associated taut moorings. The non-hydro static wave-flow model SWASH is used to simulate the response of a taut-moored wave energy converter. The predicted forces acting on the mooring system are used to compute the build-up of excess pore pressures in the soil around the mooring anchor and the resulting changes in strength and capacity. An initial loss of strength is followed by a subsequent increase in capacity, associated with long-term cyclic loading and hardening due to consolidation. The analyses show how cyclic loading may actually benefit and reduce anchoring requirements for wave energy devices. It demonstrates the viability of a close interdisciplinary approach towards an optimized and cost-effective design of mooring systems, which form a significant proportion of expected capital expenditures.
fluid structure soil, wave energy, geotechnical stability, Cyclic loading, mooring system
1-7
The American Society of Mechanical Engineers
Tom, Joe G.
41ee52e3-5eed-43a4-909b-819339875081
Rijnsdorp, Dirk
66d954f5-5680-4c2e-9faa-a95b44a1ad84
Ragni, Raffaele
0627d060-609a-43be-a29f-a7e63f4e8264
White, David
a986033d-d26d-4419-a3f3-20dc54efce93
9 June 2019
Tom, Joe G.
41ee52e3-5eed-43a4-909b-819339875081
Rijnsdorp, Dirk
66d954f5-5680-4c2e-9faa-a95b44a1ad84
Ragni, Raffaele
0627d060-609a-43be-a29f-a7e63f4e8264
White, David
a986033d-d26d-4419-a3f3-20dc54efce93
Tom, Joe G., Rijnsdorp, Dirk, Ragni, Raffaele and White, David
(2019)
FLUID-STRUCTURE-SOIL INTERACTION OF A MOORED WAVE ENERGY DEVICE: Fluid-structure-soil interaction of a moored wave energy device.
In Proceedings of the ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering: OMAE2019.
The American Society of Mechanical Engineers.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper explores the response of a wave energy device during extreme and operational conditions and the effect of this response on the geotechnical stability of the associated taut moorings. The non-hydro static wave-flow model SWASH is used to simulate the response of a taut-moored wave energy converter. The predicted forces acting on the mooring system are used to compute the build-up of excess pore pressures in the soil around the mooring anchor and the resulting changes in strength and capacity. An initial loss of strength is followed by a subsequent increase in capacity, associated with long-term cyclic loading and hardening due to consolidation. The analyses show how cyclic loading may actually benefit and reduce anchoring requirements for wave energy devices. It demonstrates the viability of a close interdisciplinary approach towards an optimized and cost-effective design of mooring systems, which form a significant proportion of expected capital expenditures.
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OMAE2019-95419
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Accepted/In Press date: 3 May 2019
Published date: 9 June 2019
Venue - Dates:
Proceedings of the ASME 2019 38th International conference on Ocean, Offshore and Arctic Engineering OMAE2019: OMAE2019, , Glasgow, United Kingdom, 2019-06-09 - 2019-06-14
Keywords:
fluid structure soil, wave energy, geotechnical stability, Cyclic loading, mooring system
Identifiers
Local EPrints ID: 432766
URI: http://eprints.soton.ac.uk/id/eprint/432766
PURE UUID: 9ee689c5-31cd-4524-be12-d762da1c5df2
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Date deposited: 26 Jul 2019 16:30
Last modified: 16 Mar 2024 04:32
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Contributors
Author:
Joe G. Tom
Author:
Dirk Rijnsdorp
Author:
Raffaele Ragni
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