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Lookup NU author(s): Professor Zhiqiang Hu
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2020 Published under licence by IOP Publishing Ltd.Phase I of the OC6 project is focused on examining why offshore wind design tools underpredict the response (loads/motion) of the OC5-DeepCwind semisubmersible at its surge and pitch natural frequencies. Previous investigations showed that the underprediction was primarily related to nonlinear hydrodynamic loading, so two new validation campaigns were performed to separately examine the different hydrodynamic load components. In this paper, we validate a variety of tools against this new test data, focusing on the ability to accurately model the low-frequency loads on a semisubmersible floater when held fixed under wave excitation and when forced to oscillate in the surge direction. However, it is observed that models providing better load predictions in these two scenarios do not necessarily produce a more accurate motion response in a moored configuration.
Author(s): Robertson AN, Gueydon S, Bachynski E, Wang L, Jonkman J, Alarcon D, Amet E, Beardsell A, Bonnet P, Boudet B, Brun C, Chen Z, Feron M, Forbush D, Galinos C, Galvan J, Gilbert P, Gomez J, Harnois V, Haudin F, Hu Z, Dreff JL, Leimeister M, Lemmer F, Li H, McKinnon G, Mendikoa I, Moghtadaei A, Netzband S, Oh S, Pegalajar-Jurado A, Nguyen MQ, Ruehl K, Schunemann P, Shi W, Shin H, Si Y, Surmont F, Trubat P, Qwist J, Wohlfahrt-Laymann S
Publication type: Conference Proceedings (inc. Abstract)
Publication status: Published
Conference Name: Future Wind/Measurement and Testing
Year of Conference: 2020
Online publication date: 21/09/2020
Acceptance date: 02/04/2016
Date deposited: 11/03/2021
Publisher: IOP Publishing Ltd
Series Title: Journal of Physics: Conference Series