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-hydrostatic 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.
| Original language | English |
|---|---|
| Title of host publication | Ocean Renewable Energy |
| Publisher | The American Society of Mechanical Engineers (ASME) |
| ISBN (Electronic) | 9780791858899 |
| Publication status | Published - 2019 |
| Event | ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019 - Glasgow, United Kingdom Duration: 9 Jun 2019 → 14 Jun 2019 |
Publication series
| Name | Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE |
|---|---|
| Volume | 10 |
Conference
| Conference | ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019 |
|---|---|
| Country | United Kingdom |
| City | Glasgow |
| Period | 9/06/19 → 14/06/19 |
Fingerprint
Cite this
}
Fluid-structure-soil interaction of a moored wave energy device. / Tom, Joe G.; Rijnsdorp, Dirk P.; Ragni, Raffaele; White, David J.
Ocean Renewable Energy. The American Society of Mechanical Engineers (ASME), 2019. omae2019-95419 (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 10).Research output: Chapter in Book/Conference paper › Conference paper
TY - GEN
T1 - Fluid-structure-soil interaction of a moored wave energy device
AU - Tom, Joe G.
AU - Rijnsdorp, Dirk P.
AU - Ragni, Raffaele
AU - White, David J.
PY - 2019
Y1 - 2019
N2 - 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-hydrostatic 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.
AB - 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-hydrostatic 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.
UR - http://www.scopus.com/inward/record.url?scp=85075907560&partnerID=8YFLogxK
UR - https://event.asme.org/OMAE2019
M3 - Conference paper
T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
BT - Ocean Renewable Energy
PB - The American Society of Mechanical Engineers (ASME)
ER -