Journal of Ocean Engineering and Technology (한국해양공학회지)

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

DOI QR Code

Expected Life Evaluation of Offshore Wind Turbine Support Structure under Variable Ocean Environment

해양환경의 변동성을 고려한 해상풍력터빈 지지구조물의 기대수명 평가

  • Lee, Gee-Nam (Department of Ocean Science and Engineering, Kunsan National University) ;
  • Kim, Dong-Hyawn (School of Architecture and Coastal Construction Engineering, Kunsan National University) ;
  • Kim, Young-Jin (Department of Ocean Science and Engineering, Kunsan National University)
  • 이기남 (국립군산대학교 해양산업공학과) ;
  • 김동현 (국립군산대학교 건축해양건설융합공학부) ;
  • 김영진 (국립군산대학교 해양산업공학과)
  • Received : 2019.05.14
  • Accepted : 2019.10.22
  • Published : 2019.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

Because offshore structures are affected by various environmental loads, the risk of damage is high. As a result of ever-changing ocean environmental loads, damage to offshore structures is expected to differ from year to year. However, in previous studies, it was assumed that a relatively short period of load acts repeatedly during the design life of a structure. In this study, the residual life of an offshore wind turbine support structure was evaluated in consideration of the timing uncertainty of the ocean environmental load. Sampling points for the wind velocity, wave height, and wave period were generated using a central composites design, and a transfer function was constructed from the numerical analysis results. A simulation was performed using the joint probability model of ocean environmental loads. The stress time history was calculated by entering the load samples generated by the simulation into the transfer function. The damage to the structure was calculated using the rain-flow counting method, Goodman equation, Miner's rule, and S-N curve. The results confirmed that the wind speed generated at a specific time could not represent the wind speed that could occur during the design life of the structure.

Keywords

References

  1. ABAQUS, 2013. Standard User's Manual - Version 6.13. Dassault Systemes Simulia Corp.
  2. American Institute of Steel Construction (AISC), 2005. Specification for Structural Steel Buildings. AISC 360-05.
  3. American Petroleum Institute (API), 2007. Recommended Practice for Planning, Design and Constructing Fixed Offshore Platforms Working Stress Design. API Publishing Services.
  4. ANSYS, 2010. ANSYS User's Manual - Version 12.1.
  5. Bossanyi, E.A., 2010. GH-Bladed Version 4.0 User Manual. Garrad Hassan and Partners Limited Document, 2.
  6. Box, J., Wilson, W., 1951. Central Composites Design. Journal of the Royal Statistical Society, 1, 1-35. https://doi.org/10.1111/j.1467-9876.1952.tb00002.x
  7. Bucher, C.G., Bourgund, U., 1987. Efficient use of Response Surface Methods. Universitat Innsbruck, Institut fur Mechanik.
  8. Coles, S., Bawa, J., Trenner, L., Dorazio, P., 2001. An Introduction to Statistical Modeling of Extreme Values. Springer, London. doi.org/10.1007/978-1-4471-3675-0
  9. Det Norske Veritas (DNV), 2011. Fatigue Design of Offshore Steel Structures. RP-C203.
  10. Det Norske Veritas (DNV), 2013. Design of offshore wind turbine structures. DNV-OS-J101.
  11. Dong, W., Moan, T., Gao, Z., 2011. Long-Term Fatigue Analysis of Multi-Planner Tubular Joints for Jacket-Type Offshore Wind Turbine in Time Domain. Engineering Structures, 33(6), 2002-2014. https://doi.org/10.1016/j.engstruct.2011.02.037
  12. 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. Reliability Engineering and System Safety, 106, 11-27. https://doi.org/10.1016/j.ress.2012.06.011
  13. Fisher, R.A., Tippett, L.H.C., 1928. Limiting Forms of the Frequency Distribution of the Largest or Smallest Member of a Sample. Mathematical Proceedings of the Cambridge Philosophical Society, 24(2), 180-190. https://doi.org/10.1017/S0305004100015681
  14. Goda, Y., Takagi, H., 2000. A Reliability Design Method of Caisson Breakwaters with Optimal Wave Heights. Coastal Engineering Journal, 42(4), 357-387. https://doi.org/10.1142/S0578563400000183
  15. Goodman, J., 1899. Mechanics Applied to Engineering. Longman, Green and Company, London.
  16. Haldar, A., Mahadevan, S., 2000. Reliability Assessment using Stochastic Finite Element. John Wiley, New York.
  17. International Electro-Technical Commission (EIC), 2005. Wind Turbines-Part 1: Design Requirements. IEC, Geneva.
  18. International Electro-Technical Commission (EIC), 2009. Wind Turbines-Part 3: Design Requirements for Offshore Wind Turbines. IEC, Geneva.
  19. Jenkinson, A.F., 1955. The Frequency Distribution of the Annual Maximum (or Minimum) Values of Meteorological Elements. Quarterly Journal of the Royal Meteorological Society, 81(348), 158-171. https://doi.org/10.1002/qj.49708134804
  20. Jeong, S.T., Kim, J.D., Ko, D.H., Yoon, G.L., 2008. Parameter Estimation and Analysis of Extreme Highest Tide Level in Marginal Seas Around Korea. Journal of Korean Society of Coastal and Ocean Engineers, 20(5), 482-490.
  21. Johannessen, K., Meling, T.S., Hayer, S., 2001. Joint Distribution for Wind and Waves in the Northern North Sea. In the Eleventh International Offshore and Polar Engineering Conference, International Society of Offshore and Polar Engineers, Stavanger Norway.
  22. Kelma, S., Schaumann, P., 2015. Probabilistic Fatigue Analysis of Jacket Support Structures for Offshore Wind Turbines Exemplified on Tubular Joints. Energy Procedia, 80, 151-158. https://doi.org/10.1016/j.egypro.2015.11.417
  23. Kim, D.H., Lee, S.G., 2015. Reliability Analysis of Offshore Wind Turbine Support Structures under Extreme Ocean Environmental Loads. Renewable Energy, 79, 161-166. https://doi.org/10.1016/j.renene.2014.11.052
  24. Kuang, J.G., Potvin, A.B., Leick, R.D., 1975. Stress Concentration in Tubular Joints. Proceedings of Offshore Technology Conference.
  25. Le Mehaute, B., 2013. An Introduction to Hydrodynamics and Water Waves. Springer Science & Business Media, Berlin.
  26. Lee, S.G., 2016. Reliability Analysis of Offshore Wind Turbine Support Structure Considering Dynamic Response Characteristics. Ph. D., Kunsan National University, Thesis, Korea.
  27. Manwell, J.F., McGowan, J.G., Rogers, A.L., 2002. Wind Energy Explained: Theory, Design and Application. John Wiley & Sons.
  28. Matsuishi, M., Endo, T., 1968. Fatigue of Metals Subjected to Varying Stress. Japan Society of Mechanical Engineers, Fukuoka, Japan, 68(2), 37-40.
  29. McVicar, T.R., Roderick, M.L., Donohue, R.J., Li, L.T., Van Niel, T.G., Thomas, A., Grieser, J., Jhajharia, D., Himri, Y., Mahowald, N.M., Mescherskaya, A.V., Kruger, A.C., Rehman, S., Dinpashoh, Y., 2012. Global Review and Synthesis of Trends in Observed Terrestrial Near-Surface Wind Speeds: Implications for Evaporation. Journal of Hydrology, 416-417, 182-205. https://doi.org/10.1016/j.jhydrol.2011.10.024
  30. Miner, M.A., 1945. Cumulative Fatigue Damage. Journal of Applied Mechanics, 12(3), A159-A164. https://doi.org/10.1115/1.4009458
  31. Ministry of Oceans and Fisheries (MOF), 2005. Estimation Report of Deep-sea Design Wave in the Whole Sea Area (II). Korea Institute of Ocean Science & Technology (KIOST).
  32. Morison, J.R., Johnson, J.W., Schaaf, S.A., 1950. The Force Exerted by Surface Waves on Piles. Journal of Petroleum Technology, 2(05), 149-154. https://doi.org/10.2118/950149-G
  33. Raymond, H.M., Douglas, C.M., 2002. Response Surface Methodology: Process and Product Optimization using Designed Experiments. John Wiley & Sons, New York.
  34. Rychlik, I., 1987. A New Definition of the Rainflow Cycle Counting Method. International Journal of Fatigue, 9(2), 119-121. https://doi.org/10.1016/0142-1123(87)90054-5
  35. Schueller, G.I., Bucher, C.G., Bourgund, U., Ouypornprasert, W., 1989. On Efficient Computational Schemes to Calculate Structural Failure Probabilities. Probabilistic Engineering Mechanics, 4(1), 10-18. https://doi.org/10.1016/0266-8920(89)90003-9
  36. Thomas, B.R., Kent, E.C., Swail, V.R., Berry, D.I., 2008. Trends in Ship Wind Speeds Adjusted for Observation Method and Height. International Journal of Climatology: A Journal of the Royal Meteorological Society, 28(6), 747-763. https://doi.org/10.1002/joc.1570
  37. Tokinaga, H., Xie, S.P., 2011. Wave-and Anemometer-Based Sea Surface Wind (WASWind) for Climate Change Analysis. Journal of Climate, 24(1), 267-285. https://doi.org/10.1175/2010JCLI3789.1
  38. Ucar, A., Balo, F., 2010. Assessment of Wind Power Potential for Turbine Installation in Coastal Areas of Turkey. Renewable and Sustainable Energy Reviews, 14(7), 1901-1912. https://doi.org/10.1016/j.rser.2010.03.021
  39. Yeter, B., Garbatov, Y., Soares, C.G., 2015. Fatigue Damage Assessment of Fixed Offshore Wind Turbine Tripod Support Structures. Engineering Structures, 101, 518-528. https://doi.org/10.1016/j.engstruct.2015.07.038
  40. Yeter, B., Garbatov, Y., Soares, C.G.. 2014. Fatigue Reliability Assessment of an Offshore Supporting Structure. Maritime Technology and Engineering, CRC Press, 689-700.
  41. Young, I.R., Vinoth, J., Zieger, S., Babanin, A.V., 2012. Investigation of Trends in Extreme Value Wave Height and Wind Speed. Journal of Geophysical Research: Oceans, 117(C11). https://doi.org/10.1029/2011JC007753