DeRisk — Accurate Prediction of ULS Wave Loads. Outlook and First Results
DeRisk — Accurate Prediction of ULS Wave Loads. Outlook and First Results
复制标题
DeRisk — ULS 波浪载荷的准确预测和初步结果。
DOI：
10.1016/j.egypro.2016.09.197
复制
发表时间：
2016
期刊：
影响因子：
--
通讯作者：
T. Hanson
中科院分区：
文献类型：
--
作者：
H. Bredmose;M. Dixen;A. Ghadirian;T. Larsen;Signe Schløer;Søren Juhl Andersen;Shao;H. Bingham;O. Lindberg;E. D. Christensen;M. Vested;S. Carstensen;A. Engsig;O. Petersen;H. F. Hansen;Jesper Sandvig Mariegaard;P. Taylor;T. Adcock;C. Obhrai;O. Gudmestad;N. J. Tarp;C. P. Meyer;J. Krokstad;Loup Suja;T. Hanson
来自极端波浪的载荷可以为海上风力涡轮机的子结构确定尺寸。DeRisk项目（2015-2019）旨在通过应用先进的波浪模型、载荷效应的实验室测试、水动力载荷模型的开发、气动弹性响应计算和统计分析，改进极端波浪的载荷评估程序。该项目的第一篇论文概述了DeRisk背后的内容和理念。接下来，介绍了不规则波实验室试验的第一批结果，包括2D和3D聚焦波组的结果。聚焦波组试验和6小时（全尺寸持续时间）试验的结果通过在完全非线性势流波模型中重新应用波桨信号进行数值再现。得到了自由表面高程和相关的阻力概率曲线的良好匹配。最后讨论了DeRisk结果在实际设计中的应用。
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.