Please use this identifier to cite or link to this item: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1011234
Title: Probabilistic design and reliability analysis of scour protections for offshore windfarms
Authors: Fazeres-Ferradosa, T.
Taveira-Pinto, F.
Romão, X.
Vanem, E.
Reis, M. T. L. G. V.
Neves, L.
Keywords: Scour protection;Probabilistic design;Offshore wind turbines;Optimisation;Reliability;Probability of failure
Issue Date: May-2018
Publisher: Elsevier
Citation: https://doi.org/10.1016/j.engfailanal.2018.04.035
Abstract: Scour protection is an important component of fixed bottom foundations for offshore wind turbines. Depending on the hydrodynamic conditions, they might be indispensable to avoid the structural collapse of the foundation due to scour phenomena. The design of scour protections is typically deterministic, which often results in overestimated mean diameters of the armour layer. Moreover, the design methodologies currently applied do not provide a measure of safety associated with the proposed design. The present research proposes a novel methodology to assess the safety of the protection and to perform the probabilistic design of static and dynamic scour protections. A case study based on Horns Rev. 3 offshore wind farm is used to show how to select the mean stone diameter according to a pre-defined probability of failure of the protection. The results show that a dynamic scour protection could be safely designed with a reduction of the mean stone diameter up to 15 cm, when compared with the statically stable protection.
URI: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1011234
Appears in Collections:DHA/NPE - Comunicações a congressos e artigos de revista

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.