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Original Articles

Coupled-crushing analysis of a sea ice-wind turbine interaction – feasibility study of FAST simulation software

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Pages 1056-1063 | Received 03 Oct 2016, Accepted 15 Mar 2017, Published online: 07 Apr 2017
 

ABSTRACT

The Gulf of Bothnia has the potential for large capacity wind farms because of the relatively high and constant wind velocities. The mostly shallow coastal areas enable cost-efficient foundation and grid connection. However, the sea freezes annually introducing the most significant uncertainties in the support structure design for offshore wind turbines. The magnitude and time variation of sea ice load depends on various factors, like the thickness and velocity of the ice as well as the size and shape of the structure. A feasibility study of the FAST (fatigue, aerodynamics, structures and turbulence) simulation software was carried out investigating the structural performance of offshore wind turbines. Various load combinations and operation modes were studied by taking into account coupling between the ice, wind and structural response. Coupled modelling of ice–structure interaction is a necessary step in terms of cost-efficient structural design.

Acknowledgments

The authors acknowledge Tekes – the Finnish Funding Agency for Innovation, Aker Arctic Technology Inc., ABB Marine, Arctia Shipping, Technip Offshore Finland Oy, Suomen Hyötytuuli Oy, Finnish Transport Agency and Ponvia Oy for funding the ARAJÄÄ-project and Academy of Finland for funding the SmartSea-project (Strategic research programme [grant number 292985]).

Disclosure statement

No potential conflict of interest was reported by the authors

Additional information

Funding

Tekes [292985].

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