Boolean:	`(bicycle AND helmet) OR (head AND protection)` (always group AND in parenthesis)
Title:	`title:(climate change)`
Author:	`author:("bohr niels" OR "bohr n")` (avoid only full first name)
Phrase:	`"water pump control"` (does not work with wildcards)
Wildcards:	`wom?n pharm*`

Conference paper · Journal article

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

In Energy Procedia — 2016, Volume 94, pp. 379-387

By Bredmose, Henrik^1,6; Dixen, Martin⁷; Ghadirian, Amin^1,6; Larsen, Torben J.^1,8; Schløer, Signe^1,6; Andersen, Søren Juhl^1,6; Wang, Shaofeng^1,8; Bingham, Harry B.^9,10; Lindberg, Ole^9,10; Christensen, Erik Damgaard^9,10; Vested, Malene Hovgaard^9,10; Carstensen, Stefan^9,10; Engsig-Karup, Allan Peter^11,12; Petersen, Ole Skov⁷; Hansen, H. F.⁷; Mariegaard, Jesper Sandvig⁷; Taylor, P. H.¹³; Adcock, T. A. A.¹³; Obhrai, C.²; Gudmestad, O. T.²; Tarp-Johansen, Niels Jacob³; Meyer, C. P.³; Krokstad, J. R.⁴; Suja-Thauvin, L.⁴; Hanson, T. D.⁵ ...and 15 more

From

Department of Wind Energy, Technical University of Denmark¹

University of Stavanger²

Ørsted A/S³

Statkraft AS⁴

Equinor ASA⁵

Fluid Mechanics, Department of Wind Energy, Technical University of Denmark⁶

DHI Water - Environment - Health⁷

Wind turbine loads & control, Department of Wind Energy, Technical University of Denmark⁸

Department of Mechanical Engineering, Technical University of Denmark⁹

Fluid Mechanics, Coastal and Maritime Engineering, Department of Mechanical Engineering, Technical University of Denmark¹⁰

Department of Applied Mathematics and Computer Science, Technical University of Denmark¹¹

Scientific Computing, Department of Applied Mathematics and Computer Science, Technical University of Denmark¹²

University of Oxford¹³

...and 3 more

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.

Language:	English
Year:	2016
Pages:	379-387
Proceedings:	13th Deep Sea Offshore Wind R&D Conference
ISSN:	18766102
Types:	Conference paper and Journal article
DOI:	10.1016/j.egypro.2016.09.197
ORCIDs:	Bredmose, Henrik , Ghadirian, Amin , Larsen, Torben J. , Andersen, Søren Juhl , Wang, Shaofeng , Bingham, Harry B. , Christensen, Erik Damgaard , Vested, Malene Hovgaard , Carstensen, Stefan and Engsig-Karup, Allan Peter

Keywords

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

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

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