文献类型：期刊文献

英文题名：Higher-harmonic resonance response of a monopile-supported offshore wind turbine in waves and wind

作者：Yang, Hui[1,2];Zhang, Yi[3,4];Lin, Jinbo[1,2];Mao, Hongfei[1,2]

机构：[1]Guangdong Ocean Univ, Coll Ocean Engn & Energy, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Guangdong Prov Key Lab Intelligent Equipment South, Zhanjiang 524088, Peoples R China;[3]Univ Manchester, Sch Engn, Manchester M13 9PL, England;[4]Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China

年份：2025

卷号：342

外文期刊名：OCEAN ENGINEERING

收录：SCI-EXPANDED(收录号：WOS:001598099300004)、、EI(收录号：20254319358133)、Scopus(收录号：2-s2.0-105019105201)、WOS

基金：The authors gratefully acknowledge the financial support from the Guangdong Provincial Key Laboratory of Intelligent Equipment for South China Sea Marine Ranching (Grant No. 2023B1212030003), the Doctor Initiate Project of Guangdong Ocean University (Grant No. 060302072304) and the Guangdong Basic and Applied Basic Research Foundation (Grant No. 2023A1515010890) . Dr Yi Zhang is supported by the Open Fund of State Key Laboratory of Coastal and Offshore Engi-neering in China with grant No. LP2502.

语种：英文

外文关键词：Offshore wind turbine; Monopile; Higher-harmonic response; Coupled model

外文摘要：This study develops a coupled aero-hydro-soil-monopile model to analyse the dynamic response of a monopilesupported offshore wind turbine (OWT) under combined wind and wave loading. The coupled model integrates a nonlinear hydrodynamic model, an aerodynamic model based on blade element momentum theory (BEMT), and an empirical soil-monopile interaction model. The proposed aerodynamic and hydrodynamic models are verified by the aerodynamics of the bottom-fixed NREL 5-MW wind turbine and the higher-harmonic wave forces on a fixed monopile, showing good agreement with reference data and experimental measurements. The dynamic response of a monopile-supported OWT is then investigated under the combined action of regular/irregular waves and steady wind. Regular wave results show that the third-harmonic response is prominent when the wave frequency is close to the one third of the natural frequency. Irregular wave results indicate that higher-harmonic components play a significant role in the dynamic responses of the OWT through the time-frequency characteristic analysis via wavelet transforms. Exceedance probability plots show the present results exceed the corresponding linear estimates by factors of 3.1 and 4.0 for the largest hub velocity and acceleration. This coupled model provides a reliable tool for OWT analysis, emphasizing non-negligible higher-harmonic wave loading effects on structural responses. This is critical for safety design under large wave steepness and higher-harmonic near-resonance conditions.