Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
권호 표지
DOI QR코드

DOI QR Code

Collision Simulation of a Floating Offshore Wind Turbine Considering Ductile Fracture and Hydrodynamics Using Hydrodynamic Plug-in HydroQus

  • Dong Ho Yoon (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • Joonmo Choung (Department of Naval Architecture and Ocean Engineering, Inha University)
  • Received : 2023.03.27
  • Accepted : 2023.06.06
  • Published : 2023.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

This paper intends to introduce the applicability of HydroQus to a problem of a tanker collision against a semi-submersible type floating offshore wind turbine (FOWT). HydroQus is a plug-in based on potential flow theory that generates interactive hydroforces in a commercial Finite element analysis (FEA) code Abaqus/Explicit. Frequency response analyses were conducted for a 10MW capacity FOWT to obtain hydrostatic and hydrodynamic constants. The tanker was modeled with rigid elements, while elastic-plastic elements were used for the FOWT. Mooring chains were modeled to implement station keeping ability of the FOWT. Two types of fracture models were considered: constant failure strain model and combined failure strain model HC-LN model composed of Hosford-Coulomb (HC) model & localized necking (LN) model. The damage extents were evaluated by hydroforces and failure strain models. The largest equivalent plastic strain observed in the cases where both restoring force and radiation force were considered. Stress triaxiality and damage indicator analysis showed that the application of HC-LN model was suitable. It could be stated that applications of suitable failure strain model and hydrodynamics into the collision simulations were of importance.

Keywords

Acknowledgement

This research was supported by the Korea Energy Technology Evaluation and Planning funded by the Ministry of Trade, Industry and Energy of Korea (No. 20213000000030) and Korea Environmental Industry & Technology Institute funded by Korea Ministry of Environment (No. 146836).

References

  1. Ansys. (2022). Ansys User Manual. Ansys.
  2. Bela, A., Le Sourne, H., Buldgen, L., & Rigo, P. (2017). Ship collision analysis on offshore wind turbine monopile foundations. Marine Structures, 51, 220-241. https://doi.org/10.1016/j.marstruc.2016.10.009
  3. Borg, M., Mirzaei, M., & Brendmose, H. (2015). D1.2 Wind turbine models for the design. DTU, Public LIFES50 D, 1.
  4. Cerik, B. C., & Choung, J. (2020). Ductile fracture behavior of mild and high-ytnsile strength shipbuilding steels. Applied Sciences, 10(20), 7034. https://doi.org/10.3390/app10207034
  5. Cerik, B. C., Ringsberg, J. W., & Choung, J. (2019). Revisiting MARSTRUCT benchmark study on side-shell collision with a combined localized necking and stress-state dependent ductile fracture model. Ocean Engineering, 187, 106173. https://doi.org/10.1016/j.oceaneng.2019.106173
  6. Dai, L., Ehlers, S., Rausand, M., & Utne, I. B. (2013). Risk of collision between service vessels and offshore wind turbines. Reliability Engineering & System Safety, 109, 18-31. https://doi.org/10.1016/j.ress.2012.07.008
  7. Det Norske Veritas (DNV). (2013), Design of offshore wind turbine structures (DNV-OS-J101).
  8. Echeverry, S., Marquez, L., Rigo, Ph., & Sourne, H. L. (2019). Numerical crashworthiness analysis of a spar floating offshore wind turbine impacted by a ship. In C. Guedes Soares (Ed.), Developments in the collision and grounding of ships and offshore structures (1st ed.), 85-95. CRC Press. https://doi.org/10.1201/9781003002420-11
  9. Han, D. H. (2022). Development of a fluid-structure interaction technique for marine structures using non-viscous hydro-forces and explicit finite element method [Doctoral dissertation, Inha University]. https://inha.dcollection.net/public_resource/pdf/200000598213_20230605182419.pdf
  10. Jasmina,O. M. (2023, April 27). Cargo ship strikes turbine at Orsted's Gode Wind 1 offshore wind farm, suffers massive damage. Offshore Energy. https://www.offshore-energy.biz/cargo-ship-strikes-orsteds-gode-wind-1-offshore-wind-farm-suffers-massive-damage/
  11. Jonkman, J. M. (2007). Dynamics modeling and loads analysis of an offshore floating wind turbine (NREL/TP-500-41958, 921803). https://doi.org/10.2172/921803
  12. LSTC. (2023). LSDYNA Manuals. https://lsdyna.ansys.com/manuals/
  13. Marquez, L., Le Sourne, H., & Rigo, P. (2022). Mechanical model for the analysis of ship collisions against reinforced concrete floaters of offshore wind turbines. Ocean Engineering, 261, 111987. https://doi.org/10.1016/j.oceaneng.2022.111987
  14. Masciola, M., Jonkman, J., & Robertson, A. (2013). Implementation of a multisegmented, quasi-static cable model (ISOPE-I-13-127).
  15. Mohr, D., & Marcadet, S. J. (2015). Micromechanically-motivated phenomenological Hosford-Coulomb model for predicting ductile fracture initiation at low stress triaxialities. International Journal of Solids and Structures, 67-68, 40-55. https://doi.org/10.1016/j.ijsolstr.2015.02.024
  16. Moulas, D., Shafiee, M., & Mehmanparast, A. (2017). Damage analysis of ship collisions with offshore wind turbine foundations. Ocean Engineering, 143, 149-162. https://doi.org/10.1016/j.oceaneng.2017.04.050
  17. Pack, K., & Mohr, D. (2017). Combined necking & fracture model to predict ductile failure with shell finite elements. Engineering Fracture Mechanics, 182, 32-51. https://doi.org/10.1016/j.engfracmech.2017.06.025
  18. Park, S.-J., Cerik, B. C., & Choung, J. (2020). Comparative study on ductile fracture prediction of high-tensile strength marine structural steels. Ships and Offshore Structures, 15(sup1), S208-S219. https://doi.org/10.1080/17445302.2020.1743552
  19. Simulia. (2021). Abaqus user manual. Dassault Systemes Simulia Corp.
  20. Sung, J. H., Kim, J. H., & Wagoner, R. H. (2010). A plastic constitutive equation incorporating strain, strain-rate, and temperature. International Journal of Plasticity, 26(12), 1746-1771. https://doi.org/10.1016/j.ijplas.2010.02.005
  21. Yoon, D. H., Jeong, S. -Y., & Choung, J. (2023). Collision simulations between an icebreaker and an iceberg considering ship hydrodynamics. Ocean Engineering, 279, 114333. https://doi.org/10.1016/j.oceaneng.2023.114333
  22. Zhang, Y., & Hu, Z. (2022). An aero-hydro coupled method for investigating ship collision against a floating offshore wind turbine. Marine Structures, 83, 103177. https://doi.org/10.1016/j.marstruc.2022.103177