STUDY ON EFFECT OF EARTHQUAKE DIRECTION ON DYNAMIC RESPONSES OF 15 MW MONOPILE OFFSHORE WIND TURBINES

Ma Lu; Zhang Xianfeng; Liu Qianni; Qin Ming; Fu Guangze; Yang Yang

doi:10.19912/j.0254-0096.tynxb.2024-1393

PDF(1930 KB)

Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (12) : 617-625. DOI: 10.19912/j.0254-0096.tynxb.2024-1393

STUDY ON EFFECT OF EARTHQUAKE DIRECTION ON DYNAMIC RESPONSES OF 15 MW MONOPILE OFFSHORE WIND TURBINES

Ma Lu¹, Zhang Xianfeng¹, Liu Qianni², Qin Ming¹, Fu Guangze¹, Yang Yang^2,3

Author information +

History +

Abstract

To quantify the effect of earthquake directionality on the seismic behaviors of 15 MW monopile offshore wind turbines, a fully coupled simulation framework is developed based on the modal acceleration method. The dynamic responses of a 15 MW offshore wind turbine over the complete range of wind-earthquake misalignment angles （0°-360°） under wind-wave-earthquake environmental conditions are calculated. Tower-base bending moment, tower-top displacement, and tower-top acceleration of the wind turbine under several typical simulation conditions are compared. The results indicate that the tower-top acceleration is highly sensitive to the wind-earthquake misalignment angle, whereas the sensitivities of tower-top displacement and tower-base bending moment are governed by the external excitations. These findings underscore the necessity of explicitly accounting for the wind-earthquake coupling effect in the design and assessment of large-scale offshore wind turbines.

Key words

offshore wind turbines / earthquake directionality / dynamic response / wind-earthquake coupling / FAST

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Ma Lu, Zhang Xianfeng, Liu Qianni, Qin Ming, Fu Guangze, Yang Yang. STUDY ON EFFECT OF EARTHQUAKE DIRECTION ON DYNAMIC RESPONSES OF 15 MW MONOPILE OFFSHORE WIND TURBINES[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 617-625 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1393

References

[1] YU M, ZHANG Z, LI X W, et al.Superposition Graph Neural Network for offshore wind power prediction[J]. Future generation computer systems, 2020, 113: 145-157.
[2] Global Wind Energy Council. Global wind report: annual market update 2022[R]. Brussels: GWEC, 2023.
[3] KATSANOS E I, THÖNS S, GEORGAKIS C T. Wind turbines and seismic hazard: a state-of-the-art review[J]. Wind energy, 2016, 19(11): 2113-2133.
[4] ZHENG X Y, LI H B, RONG W D, et al.Joint earthquake and wave action on the monopile wind turbine foundation: an experimental study[J]. Marine structures, 2015, 44: 125-141.
[5] LIU Q N, LEI X, LAI Y Q, et al.Analysis of dynamic response of offshore wind turbines subjected to earthquake loadings and the corresponding mitigation measures: a review[J]. Ocean engineering, 2024, 311: 118892.
[6] 闫阳天, 李春, 张万福, 等. 极限环境载荷诱导风力机结构振动影响分析[J]. 太阳能学报, 2022, 43(4): 393-401.
YAN Y T, LI C, ZHANG W F, et al.Analysis of vibration influence of wind turbine structure induced by ultimate environmental load[J]. Acta energiae solaris sinica, 2022, 43(4): 393-401.
[7] ASAREH M A.Dynamic behavior of operational wind turbines considering aerodynamic and seismic load interaction[D]. Missouri: Missouri University of Science and Technology, 2015.
[8] 张小玲, 李赟琪, 王丕光, 等. 黏土中海上风力机桩-筒复合基础地震响应分析[J]. 太阳能学报, 2024, 45(2): 189-197.
ZHANG X L, LI Y Q, WANG P G, et al.Seismic response analysis of pile-bucket composite foundation for offshore wind turbine in clay[J]. Acta energiae solaris sinica, 2024, 45(2): 189-197.
[9] KIM J H, KIM J K, HEO T M, et al . A study on the characteristics of bi-directional responses by ground motions of moderate magnitude earthquakes recorded in Korea[J]. Journal of the Earthquake Engineering Society of Korea, 2019, 23(5): 269-277.
[10] BRADLEY B A, BAKER J W.Ground motion directionality in the 2010-2011 canterbury earthquakes[J]. Earthquake engineering & structural dynamics, 2015, 44(3): 371-384.
[11] PENZIEN J, WATABE M.Characteristics of 3-dimensional earthquake ground motions[J]. Earthquake engineering & structural dynamics, 1974, 3(4): 365-373.
[12] JONKMAN J.Definition of a 5-MW reference wind turbine for offshore system development[R]. National Renewable Energy Laboratory, 2009.
[13] MAGLIULO G, MADDALONI G, PETRONE C.Influence of earthquake direction on the seismic response of irregular plan RC frame buildings[J]. Earthquake engineering and engineering vibration, 2014, 13(2): 243-256.
[14] SHARMIN F, THARIQ HUSSAN M I, KIM D, et al. Influence of soil-structure interaction on seismic responses of offshore wind turbine considering earthquake incident angle[J]. Earthquakes and structures, 2017, 13: 39-50.
[15] YANG Y, BASHIR M, LI C, et al.Analysis of seismic behaviour of an offshore wind turbine with a flexible foundation[J]. Ocean engineering, 2019, 178: 215-228.
[16] MO R J, CAO R J, LIU M H, et al.Effect of ground motion directionality on seismic dynamic responses of monopile offshore wind turbines[J]. Renewable energy, 2021, 175: 179-199.
[17] 牛凯伦, 闫阳天, 李春, 等. 大型海上风力机地震冲击角动力学响应分析[J]. 太阳能学报, 2022, 43(11): 292-302.
NIU K L, YAN Y T, LI C, et al.Dynamic response analysis of seismic impact angle of large offshore wind turbine[J]. Acta energiae solaris sinica, 2022, 43(11): 292-302.
[18] GAERTNER E, RINKER J, Sethuraman L, et al. Definition of the IEA wind 15-megawatt offshore reference wind turbine[R]. National Renewable Energy Laboratory, Technical Report: NREL/TP-5000-75698, 2020, Golden, United States.
[19] STEWART G M, ROBERTSON A, JONKMAN J, et al.The creation of a comprehensive metocean data set for offshore wind turbine simulations[J]. Wind energy, 2016, 19(6): 1151-1159.