DYNAMIC RESPONSE ANALYSIS OF NOVEL FLOATING WIND TURBINE FOUNDATION UNDER DIFFERENT TURBULENCE INTENSITIES

Xu Xinrui; Zhu Lei; Yin Fei; Wu Songxiong; Li Xiaodong

doi:10.19912/j.0254-0096.tynxb.2025-0678

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (8) : 800-808. DOI: 10.19912/j.0254-0096.tynxb.2025-0678

DYNAMIC RESPONSE ANALYSIS OF NOVEL FLOATING WIND TURBINE FOUNDATION UNDER DIFFERENT TURBULENCE INTENSITIES

Xu Xinrui¹, Zhu Lei¹, Yin Fei¹, Wu Songxiong², Li Xiaodong³

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Abstract

This study investigates the dynamic response of a novel floating wind turbine foundation in a turbulent wind field under deep-sea conditions. Based on OpenFAST software, dynamic response analyses of the floating foundation under different turbulence intensities are conducted, and the results are compared with the traditional OC4-DeepCwind floating foundation. By coupling a multiphysics model and using the turbulent wind spectrum generated by TurbSim, the time-domain motion response of the floating foundation under wind speed of 11.4 m/s and irregular wave conditions is simulated. The results show that： 1） The turbulence intensity significantly affects the motion of the floating wind turbine; 2） The new floating foundation outperforms the traditional model in terms of motion response in surge and heave directions, with a 24.6% reduction in surge amplitude and a 0.064 m decrease in maximum instantaneous heave at 10% turbulence intensity; 3） The motion response of the new floating foundation increases linearly with turbulence intensity, with the surge maximum amplitude ranging from 5.60 m to 6.74 m, the heave amplitude ranging from 0.178 m to 0.190 m, and the pitch amplitude ranging from 0.48° to 1.10°, all meeting the design limits; 4） The maximum mooring line tension of the mooring system under the 20% turbulence intensity condition is 1.475 MN （safety factor： 4.13）, and the safety factor meets the requirements of general specifications.

Key words

offshore wind power / offshore floating wind turbines / dynamic response / numerical analysis / floating foundation / turbulent wind

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Xu Xinrui, Zhu Lei, Yin Fei, Wu Songxiong, Li Xiaodong. DYNAMIC RESPONSE ANALYSIS OF NOVEL FLOATING WIND TURBINE FOUNDATION UNDER DIFFERENT TURBULENCE INTENSITIES[J]. Acta Energiae Solaris Sinica. 2026, 47(8): 800-808 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0678

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