International Journal of Naval Architecture and Ocean Engineering

  • 제10권1호
  • /
  • Pages.9-20
  • /
  • 2018
  • /
  • 2092-6782(pISSN)
  • /
  • 2092-6790(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
권호 표지
DOI QR코드

DOI QR Code

Short-term fatigue analysis for tower base of a spar-type wind turbine under stochastic wind-wave loads

  • Li, Haoran (State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University) ;
  • Hu, Zhiqiang (School of Marine Science and Technology, Newcastle University) ;
  • Wang, Jin (State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University) ;
  • Meng, Xiangyin (School of Marine Science and Technology, Newcastle University)
  • 투고 : 2016.10.17
  • 심사 : 2017.05.09
  • 발행 : 2018.01.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Due to integrated stochastic wind and wave loads, the supporting platform of a Floating Offshore Wind Turbine (FOWT) has to bear six Degrees of Freedom (DOF) motion, which makes the random cyclic loads acting on the structural components, for instance the tower base, more complicated than those on bottom-fixed or land-based wind turbines. These cyclic loads may cause unexpected fatigue damages on a FOWT. This paper presents a study on short-term fatigue damage at the tower base of a 5 MW FOWT with a spar-type platform. Fully coupled time-domain simulations code FAST is used and realistic environment conditions are considered to obtain the loads and structural stresses at the tower base. Then the cumulative fatigue damage is calculated based on rainflow counting method and Miner's rule. Moreover, the effects of the simulation length, the wind-wave misalignment, the wind-only condition and the wave-only condition on the fatigue damage are investigated. It is found that the wind and wave induced loads affect the tower base's axial stress separately and in a decoupled way, and the wave-induced fatigue damage is greater than that induced by the wind loads. Under the environment conditions with rated wind speed, the tower base experiences the highest fatigue damage when the joint probability of the wind and wave is included in the calculation. Moreover, it is also found that 1 h simulation length is sufficient to give an appropriate fatigue damage estimated life for FOWT.

키워드

참고문헌

  1. TC88-MT I E C, 2005. IEC 61400-3: Wind turbines-part 1: Design Requirements. International Electro-technical Commission, Geneva.
  2. Argyriadis, K., Klose, M., 2007. Analysis of offshore wind turbines with jacket structures. In: The Seventeenth International Offshore and Polar Engineering Conference. Lisbon, Portugal.
  3. Bachynski, E.E., 2014. Design and Dynamic Analysis of Tension Leg Platform Wind Turbines. Norwegian University of Science and Technology.
  4. Dong, W., Moan, T., Gao, Z., 2011. Long-term fatigue analysis of multi-planar tubular joints for jacket-type offshore wind turbine in time domain. Eng. Struct. 33 (6), 2002-2014. https://doi.org/10.1016/j.engstruct.2011.02.037
  5. Dong, W., Moan, T., Gao, Z., 2012. Fatigue reliability analysis of the jacket support structure for offshore wind turbine considering the effect of corrosion and inspection. Reliab. Eng. Syst. Saf. 106, 11-27. https://doi.org/10.1016/j.ress.2012.06.011
  6. Gao, Z., Moan, T., 2008. Frequency-domain fatigue analysis of wide-band stationary Gaussian processes using a trimodal spectral formulation. Int. J. Fatigue 30 (10), 1944-1955. https://doi.org/10.1016/j.ijfatigue.2008.01.008
  7. Gao, Z., Moan, T., 2010. Long-term fatigue analysis of offshore fixed wind turbines based on time-domain simulations. In: Proceedings of PRADS, Rio de Janeiro, Brazil.
  8. Haid, L., Stewart, G., Jonkman, J., et al., 2013. Simulation-length requirements in the loads analysis of offshore floating wind turbines. In: ASME 2013 32nd International Conference on Ocean. Offshore and Arctic Engineering, Nantes, France.
  9. Hayman, G.J., 2015. MExtemes Manual Version 1.00. Technical Report. NREL, Golden, Colorado, USA.
  10. https://nwtc.nrel.gov/FAQ.
  11. Hayman, G., 2012. MLife Theory Manual for Version 1.00. Technical Report. NREL, Golden, Colorado, USA.
  12. Jonkman, J.M., 2007. Dynamics Modeling and Loads Analysis of an Offshore Floating Wind Turbine. University of Colorado at Boulder.
  13. Jonkman, J., 2010. Definition of the Floating System for Phase IV of OC3. Technical Report, NREL/TP-500-47535. NREL, Golden, Colorado, USA.
  14. Jonkman, J.M., Buhl Jr., M.L., 2005. FAST User's Guide. Technical Report, NREL/EL-500-38230. NREL, Golden, Colorado, USA.
  15. Jonkman, J.B., Kilcher, L., 2012. TurbSim User's Guide: Version 1.06.0. Technical Report. NREL, Golden, Colorado, USA.
  16. Jonkman, J., Butterfield, S., Musial, W., 2009. Definition of a 5-MW Reference Wind Turbine for Offshore System Development. Technical Report, NREL/TP-500-38060. NREL, Golden, Colorado, USA.
  17. Jonkman, J.M., Robertson, A.N., Hayman, G.J., 2014. HydroDyn User's Guide and Theory Manual. Technical Report. NREL, Golden, Colorado, USA.
  18. Kuhn, M.J., 2001. Dynamics and Design Optimization of Offshore Wind Energy Conversion Systems. Delft University of Technology, TU Delft.
  19. Kvittem, M.I., 2014. Modelling and Response Analysis for Fatigue Design of a Semi-submersible Wind Turbine. Norwegian University of Science and Technology.
  20. Kvittem, M.I., Moan, T., 2015. Frequency versus time domain fatigue analysis of a semisubmersible wind turbine tower. J. Offshore Mech. Arct. Eng. 137 (1), 011901.
  21. Kvittem, M.I., Moan, T., 2015. Time domain analysis procedures for fatigue assessment of a semi-submersible wind turbine. Mar. Struct. 40, 38-59. https://doi.org/10.1016/j.marstruc.2014.10.009
  22. Li, L., Gao, Z., Moan, T., 2013. Joint environmental data at five European offshore sites for design of combined wind and wave energy devices. In: ASME 2013 32nd International Conference on Ocean. Offshore and Arctic Engineering, Nantes, France.
  23. Long, H., Moe, G., 2012. Preliminary design of bottom-fixed lattice offshore wind turbine towers in the fatigue limit state by the frequency domain method. J. Offshore Mech. Arct. Eng. 134 (3), 031902. https://doi.org/10.1115/1.4005200
  24. Matsuishi, M., Endo, T., 1968. Fatigue of Metals Subjected to Varying Stress. Japan Society of Mechanical Engineers, Fukuoka, Japan, pp. 37-40.
  25. Melchers, R.E., 1987. Structural Reliability Analysis and Prediction. Structural Reliability Analysis & Prediction.
  26. Moriarty, P.J., Hansen, A.C., 2005. AeroDyn Theory Manual. Technical Report, NREL/TP-500-36881. NREL, Golden, Colorado, USA.
  27. Roald, L., Jonkman, J., Robertson, A., et al., 2013. The effect of second-order hydrodynamics on floating offshorewind turbines. Energy Proc 35, 253-264.
  28. Seidel, M., Ostermann, F., Curvers, A., et al., 2009. Validation of offshore load simulations using measurement data from the DOWNVInD project. In: Proceedings of European Offshore Wind Conference, Stockholm, Sweden.
  29. Van Der Tempel, J., 2006. Design of Support Structures for Offshore Wind Turbines. Delft University of Technology, TU Delft.
  30. Veritas, D.N., 2010. DNV-RP-C203. Fatigue Design of Offshore Steel Structures.
  31. Ma, Yu, 2014. Research on Dynamic Analysis for a Spar Type Offshore Floating Wind Turbine. Shanghai Jiao Tong University.
  32. Ma, Yu, Hu, Z., Xiao, L., 2015. Wind-wave induced dynamic response analysis for motions and mooring loads of a spar-type offshore floating wind turbine. J. Hydrodyn. Ser. B 26 (6), 865-874. https://doi.org/10.1016/S1001-6058(14)60095-0

피인용 문헌

  1. Ultimate structural and fatigue damage loads of a spar-type floating wind turbine vol.14, pp.6, 2018, https://doi.org/10.1080/17445302.2018.1532867
  2. Aerodynamics and Structural Dynamics of Floating Offshore Wind Turbine under Different Degrees of Freedom vol.15, pp.4, 2018, https://doi.org/10.7849/ksnre.2019.12.15.4.011
  3. Distributed plasticity approach for the nonlinear structural assessment of offshore wind turbine vol.12, pp.None, 2018, https://doi.org/10.1016/j.ijnaoe.2020.09.003
  4. Discussion on Coupling Effect in Structural Load of FOWT for Condensing Wind and Wave Bins for Spectral Fatigue Analysis vol.8, pp.11, 2018, https://doi.org/10.3390/jmse8110937
  5. Moderate water depth effects on the response of a floating wind turbine vol.28, pp.None, 2018, https://doi.org/10.1016/j.istruc.2020.09.067
  6. Analysis of the Effect of a Series of Back Twist Blade Configurations for an Active Pitch-To-Stall Floating Offshore Wind Turbine vol.142, pp.6, 2020, https://doi.org/10.1115/1.4046567
  7. A Numerical Prediction on the Transient Response of a Spar-Type Floating Offshore Wind Turbine in Freak Waves vol.142, pp.6, 2018, https://doi.org/10.1115/1.4047202
  8. Extreme loads analysis of a site-specific semi-submersible type wind turbine vol.15, pp.suppl1, 2020, https://doi.org/10.1080/17445302.2020.1733315
  9. Dynamic Responses for WindFloat Floating Offshore Wind Turbine at Intermediate Water Depth Based on Local Conditions in China vol.9, pp.10, 2018, https://doi.org/10.3390/jmse9101093