[en] With the new developments of floating offshore wind turbines (FOWT), wind farms are located in deeper water, meaning they are closer to traffic cargo and passenger lanes, increasing probability of colli-sion. This paper aims to analyze the crashworthiness of a spar FOWT by performing non-linear finite element simulations, which in the future will serve to validate a simplified analytical method for performing the same analysis in a faster and reliable way. The influence of parameters like nacelle mass, hydrodynamic forces, gravity, ballast mass and mooring line tension is analyzed. First simulations are run assuming a rigid striking ship in order to understand the crashworthiness of FOWT only. Then, the ship is modelled as deformable and the effect of bow deformability is investigated. Regarding internal mechanics, the main deformation modes are identified and deformation energies, structure indentations and resistant forces are post-processed. As ex-ternal mechanics is concerned, rigid-bodies motions during and after the collision are analyzed for different collision scenarios.
Disciplines :
Civil engineering
Author, co-author :
Echeverry Jaramillo, Sara ; Université de Liège - ULiège > Département ArGEnCo > Constructions hydrauliques et navales
Marquez, Lucas ; Université de Liège - ULiège > Département ArGEnCo > ANAST (Systèmes de transport et constructions navales)
Rigo, Philippe ; Université de Liège - ULiège > Département ArGEnCo > Constructions hydrauliques et navales
Le Sourne, Hervé ; Université de Liège - ULiège > Département ArGEnCo > Constructions hydrauliques et navales
Language :
English
Title :
Numerical Crashworthiness Analysis of a Spar Floating Offshore Wind Turbine Impacted by a Ship
Publication date :
2020
Event name :
8th International Conference on Collision and Grounding of Ships and Offshore Structures
Event organizer :
Instituto Tecnico Lisboa
Event place :
Lisbon, Portugal
Event date :
from 21-10-2019 to 23-10-2019
By request :
Yes
Audience :
International
Main work title :
Developments in the collision and grounding of ships and offshore structures
Main work alternative title :
[en] Developments in the Collision and Grounding of Ships and Offshore Structures: Proceedings of the 8th International Conference on Collision and Grounding of Ships and Offshore Structures (ICCGS 2019), 21-23 October, 2019, Lisbon, Portugal
Bela, A., Le Sourne, H., Buldgen, L., Rigo, P., Ship collision analysis on offshore wind turbine monopile foundations (2017) Marine Structures, 51, pp. 220-241
Biehl, F., Lehmann, E., Collisions of ships with offshore wind turbines: Calculation and risk evaluation (2006) Offshore Wind Energy, p. 281e304. , Springer Berlin Heidelberg, p
Buldgen, L., Le Sourne, H., Pire, T., Extension of the super-elements method to the analysis of a jacket impacted by a ship (2014) Marine Structures, 38, pp. 44-71
Christensen, C.F., Andersen, L.W., Pedersen, P.H., Ship Collision Risk for an Offshore Wind Farm (2001) Proceedings of the Eighth International Conference on Structural Safety and Reliability ICOSSAR, , Newport Beach, California, 17–22 June
Cruz, J., Atcheson, M., (2016) Floating Offshore Wind Energy, pp. 169-175. , Springer. ISBN 978-3-319-29398-1
Dai, L., Ehlers, S., Rausand, M., Bouwer Utne, I., Risk of collision between service vessels and offshore wind turbines (2012) Reliability Engineering and System Safety, 109, pp. 18-31. , p
Ferry, M., MCOL user’s manual (2002) Principia Marine, Technical Report., , 25 February
Jonkman, J., Buhl, M.L., Jr., (2007) Loads Analysis of a Floating Offshore Windturbine Using Fully Coupled Simulation. NREL/CP-500-41714. Presented at Windpower, pp. 3-6. , Los Angeles, California June
Ferry, M., MCOL user’s manual (2002) Principia Marine, Technical Report., , 25 February
Le Sourne, H., A ship Collision Analysis Program Based on Super-Element Method Coupled with Large Rotational Ship Movement Analysis (2007) 4Th International Conference on Collision and Grounding of Ships, pp. 131-138. , Hamburg
Le Sourne, H., Barrera, A., Maliakel, J.B., Numerical crashworthiness analysis of an offshore wind turbine jacket impacted by a ship (2015) J Marine Science Technology, 23 (5), pp. 694-704
Le Sourne, H., Pire, T., Hsieh, J.R., Rigo, P., New analytical developments to study local and global deformations of an offshore wind turbine jacket impacted by a ship. Proceedings of the ICCGS, Ulsan, Korea (2016) 15–18 June
Moan, T., Karsan, D., Wilson, T., (1993) Analytical Risk Assessment and Risk Control of Floating Platforms Subjected to Ship Collisions and Dropped Objects. Offshore Technology Conference, Houston, Texas, 3–6 May
(2004) Design of Steel Structures, Rev, p. 2. , Lysaker: Standards Norway
Pire, T., Le Sourne, H., Echeverry, S., Rigo, P., Analytical formulations to assess the energy dissipated at the baseof an offshore wind turbine jacket impacted by a ship (2018) Marine Structures, 59, pp. 192-218
(2019) Human Errors Led to Ships Collision in Corsica, , https://safety4sea.com/human-errors-led-to-ships-collision-in-corsica/
