DeRisk - Accurate prediction of ULS wave loads. Outlook and first results

Henrik Bredmose, Martin Dixen, Amin Ghadirian, Torben J. Larsen, Signe Schløer, Søren Juhl Andersen, Shaofeng Wang, Harry B. Bingham, Ole Lindberg, Erik Damgaard Christensen, Malene Hovgaard Vested, Stefan Carstensen, Allan Peter Engsig-Karup, Ole Skov Petersen, H. F. Hansen, Jesper Sandvig Mariegaard, P. H. Taylor, T. A. A. Adcock, C. Obhrai, O. T. Gudmestad & 5 others Niels Jacob Tarp-Johansen, C. P. Meyer, J. R. Krokstad, L. Suja-Thauvin, T. D. Hanson

Research output: Contribution to journalConference articleResearchpeer-review

323 Downloads (Pure)

Abstract

Loads from extreme waves can be dimensioning for the substructures of offshore wind turbines. The DeRisk project (2015-2019) aims at an improved load evaluation procedure for extreme waves through application of advanced wave models, laboratory tests of load effects, development of hydrodynamic load models, aero-elastic response calculations and statistical analysis. This first paper from the project outlines the content and philosophy behind DeRisk. Next, the first results from laboratory tests with irregular waves are presented, including results for 2D and 3D focused wave groups. The results of focused wave group tests and a 6-hour (full scale duration) test are reproduced numerically by re-application of the wave paddle signal in a fully nonlinear potential flow wave model. A good match for the free surface elevation and associated exceedance probability curve is obtained. Finally, the utilization of DeRisk's results in practical design is discussed. (C) 2016 Published by Elsevier Ltd.
Original languageEnglish
JournalEnergy Procedia
Volume94
Pages (from-to)379-387
ISSN1876-6102
DOIs
Publication statusPublished - 2016
Event13th Deep Sea Offshore Wind R&D Conference - Trondheim, Norway
Duration: 20 Jan 201622 Jan 2016
https://www.sintef.no/projectweb/deepwind_2016/

Conference

Conference13th Deep Sea Offshore Wind R&D Conference
CountryNorway
CityTrondheim
Period20/01/201622/01/2016
Internet address

Bibliographical note

Copyright 2016 Published by Elsevier Ltd.This is an open access article under the CC BY-NC-ND license.

Keywords

  • Extreme waves
  • Offshore wind turbines
  • Hydrodynamic loads
  • Numerical modelling
  • Physical model tests

Cite this

Bredmose, Henrik ; Dixen, Martin ; Ghadirian, Amin ; Larsen, Torben J. ; Schløer, Signe ; Andersen, Søren Juhl ; Wang, Shaofeng ; Bingham, Harry B. ; Lindberg, Ole ; Christensen, Erik Damgaard ; Vested, Malene Hovgaard ; Carstensen, Stefan ; Engsig-Karup, Allan Peter ; Petersen, Ole Skov ; Hansen, H. F. ; Mariegaard, Jesper Sandvig ; Taylor, P. H. ; Adcock, T. A. A. ; Obhrai, C. ; Gudmestad, O. T. ; Tarp-Johansen, Niels Jacob ; Meyer, C. P. ; Krokstad, J. R. ; Suja-Thauvin, L. ; Hanson, T. D. / DeRisk - Accurate prediction of ULS wave loads. Outlook and first results. In: Energy Procedia. 2016 ; Vol. 94. pp. 379-387.
@inproceedings{cefccb258b6d4c83a2f48a4fcba32829,
title = "DeRisk - Accurate prediction of ULS wave loads. Outlook and first results",
abstract = "Loads from extreme waves can be dimensioning for the substructures of offshore wind turbines. The DeRisk project (2015-2019) aims at an improved load evaluation procedure for extreme waves through application of advanced wave models, laboratory tests of load effects, development of hydrodynamic load models, aero-elastic response calculations and statistical analysis. This first paper from the project outlines the content and philosophy behind DeRisk. Next, the first results from laboratory tests with irregular waves are presented, including results for 2D and 3D focused wave groups. The results of focused wave group tests and a 6-hour (full scale duration) test are reproduced numerically by re-application of the wave paddle signal in a fully nonlinear potential flow wave model. A good match for the free surface elevation and associated exceedance probability curve is obtained. Finally, the utilization of DeRisk's results in practical design is discussed. (C) 2016 Published by Elsevier Ltd.",
keywords = "Extreme waves, Offshore wind turbines, Hydrodynamic loads, Numerical modelling, Physical model tests",
author = "Henrik Bredmose and Martin Dixen and Amin Ghadirian and Larsen, {Torben J.} and Signe Schl{\o}er and Andersen, {S{\o}ren Juhl} and Shaofeng Wang and Bingham, {Harry B.} and Ole Lindberg and Christensen, {Erik Damgaard} and Vested, {Malene Hovgaard} and Stefan Carstensen and Engsig-Karup, {Allan Peter} and Petersen, {Ole Skov} and Hansen, {H. F.} and Mariegaard, {Jesper Sandvig} and Taylor, {P. H.} and Adcock, {T. A. A.} and C. Obhrai and Gudmestad, {O. T.} and Tarp-Johansen, {Niels Jacob} and Meyer, {C. P.} and Krokstad, {J. R.} and L. Suja-Thauvin and Hanson, {T. D.}",
note = "Copyright 2016 Published by Elsevier Ltd.This is an open access article under the CC BY-NC-ND license.",
year = "2016",
doi = "10.1016/j.egypro.2016.09.197",
language = "English",
volume = "94",
pages = "379--387",
journal = "Energy Procedia",
issn = "1876-6102",
publisher = "Elsevier",

}

Bredmose, H, Dixen, M, Ghadirian, A, Larsen, TJ, Schløer, S, Andersen, SJ, Wang, S, Bingham, HB, Lindberg, O, Christensen, ED, Vested, MH, Carstensen, S, Engsig-Karup, AP, Petersen, OS, Hansen, HF, Mariegaard, JS, Taylor, PH, Adcock, TAA, Obhrai, C, Gudmestad, OT, Tarp-Johansen, NJ, Meyer, CP, Krokstad, JR, Suja-Thauvin, L & Hanson, TD 2016, 'DeRisk - Accurate prediction of ULS wave loads. Outlook and first results', Energy Procedia, vol. 94, pp. 379-387. https://doi.org/10.1016/j.egypro.2016.09.197

DeRisk - Accurate prediction of ULS wave loads. Outlook and first results. / Bredmose, Henrik; Dixen, Martin; Ghadirian, Amin; Larsen, Torben J.; Schløer, Signe; Andersen, Søren Juhl; Wang, Shaofeng; Bingham, Harry B.; Lindberg, Ole; Christensen, Erik Damgaard; Vested, Malene Hovgaard; Carstensen, Stefan; Engsig-Karup, Allan Peter; Petersen, Ole Skov; Hansen, H. F.; Mariegaard, Jesper Sandvig; Taylor, P. H.; Adcock, T. A. A.; Obhrai, C.; Gudmestad, O. T.; Tarp-Johansen, Niels Jacob; Meyer, C. P.; Krokstad, J. R.; Suja-Thauvin, L.; Hanson, T. D.

In: Energy Procedia, Vol. 94, 2016, p. 379-387.

Research output: Contribution to journalConference articleResearchpeer-review

TY - GEN

T1 - DeRisk - Accurate prediction of ULS wave loads. Outlook and first results

AU - Bredmose, Henrik

AU - Dixen, Martin

AU - Ghadirian, Amin

AU - Larsen, Torben J.

AU - Schløer, Signe

AU - Andersen, Søren Juhl

AU - Wang, Shaofeng

AU - Bingham, Harry B.

AU - Lindberg, Ole

AU - Christensen, Erik Damgaard

AU - Vested, Malene Hovgaard

AU - Carstensen, Stefan

AU - Engsig-Karup, Allan Peter

AU - Petersen, Ole Skov

AU - Hansen, H. F.

AU - Mariegaard, Jesper Sandvig

AU - Taylor, P. H.

AU - Adcock, T. A. A.

AU - Obhrai, C.

AU - Gudmestad, O. T.

AU - Tarp-Johansen, Niels Jacob

AU - Meyer, C. P.

AU - Krokstad, J. R.

AU - Suja-Thauvin, L.

AU - Hanson, T. D.

N1 - Copyright 2016 Published by Elsevier Ltd.This is an open access article under the CC BY-NC-ND license.

PY - 2016

Y1 - 2016

N2 - Loads from extreme waves can be dimensioning for the substructures of offshore wind turbines. The DeRisk project (2015-2019) aims at an improved load evaluation procedure for extreme waves through application of advanced wave models, laboratory tests of load effects, development of hydrodynamic load models, aero-elastic response calculations and statistical analysis. This first paper from the project outlines the content and philosophy behind DeRisk. Next, the first results from laboratory tests with irregular waves are presented, including results for 2D and 3D focused wave groups. The results of focused wave group tests and a 6-hour (full scale duration) test are reproduced numerically by re-application of the wave paddle signal in a fully nonlinear potential flow wave model. A good match for the free surface elevation and associated exceedance probability curve is obtained. Finally, the utilization of DeRisk's results in practical design is discussed. (C) 2016 Published by Elsevier Ltd.

AB - Loads from extreme waves can be dimensioning for the substructures of offshore wind turbines. The DeRisk project (2015-2019) aims at an improved load evaluation procedure for extreme waves through application of advanced wave models, laboratory tests of load effects, development of hydrodynamic load models, aero-elastic response calculations and statistical analysis. This first paper from the project outlines the content and philosophy behind DeRisk. Next, the first results from laboratory tests with irregular waves are presented, including results for 2D and 3D focused wave groups. The results of focused wave group tests and a 6-hour (full scale duration) test are reproduced numerically by re-application of the wave paddle signal in a fully nonlinear potential flow wave model. A good match for the free surface elevation and associated exceedance probability curve is obtained. Finally, the utilization of DeRisk's results in practical design is discussed. (C) 2016 Published by Elsevier Ltd.

KW - Extreme waves

KW - Offshore wind turbines

KW - Hydrodynamic loads

KW - Numerical modelling

KW - Physical model tests

U2 - 10.1016/j.egypro.2016.09.197

DO - 10.1016/j.egypro.2016.09.197

M3 - Conference article

VL - 94

SP - 379

EP - 387

JO - Energy Procedia

JF - Energy Procedia

SN - 1876-6102

ER -