Stability analysis of vortex-induced vibrations on wind turbines

Riccardo Riva*, Sergio G. Horcas*, Niels N. Sørensen*, Christian Grinderslev*, Georg R. Pirrung*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

A parked wind turbine can be subjected to large yaw angles, which causes vortex shedding. Under some particular inflow conditions, the interaction between the shed vorticity and the blade structure could lead to Vortex-Induced Vibrations (VIV). VIV are an instability where the response grows until it reaches a limit cycle oscillation. In this paper, we will focus on this last part of the response. We will see that the shedding makes the aeroelastic system linear time-periodic, and study its stability with Floquet theory. We will use high-fidelity simulations of different inflow conditions, and quantify the stability of the system using a model-free approach.
Original languageEnglish
Title of host publicationFloating Wind; Systems Design and Multi-Fidelity/Multi-Disciplinary Modelling; Future Wind; Smaller Wind Turbines
Number of pages11
PublisherIOP Publishing
Publication date2022
Article number042054
DOIs
Publication statusPublished - 2022
SeriesJournal of Physics: Conference Series
Number4
Volume2265
ISSN1742-6596

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