DYNAMIC ANALYSIS OF LOWERING FOUR-BUCKET JACKET FOUNDATION FOR OFFSHORE WIND POWER

Zhang Xiaofei; Zhao Yebin; Cai Jinxin; Wang Tingyuan; Zhang Puyang

doi:10.19912/j.0254-0096.tynxb.2024-2317

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Acta Energiae Solaris Sinica ›› 2025, Vol. 46 ›› Issue (11) : 764-771. DOI: 10.19912/j.0254-0096.tynxb.2024-2317

DYNAMIC ANALYSIS OF LOWERING FOUR-BUCKET JACKET FOUNDATION FOR OFFSHORE WIND POWER

Zhang Xiaofei¹, Zhao Yebin¹, Cai Jinxin², Wang Tingyuan², Zhang Puyang²

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Abstract

This paper investigates the coupling between the suction bucket jacket foundation and the floating crane ship during the lowering process. The four-bucket jacket foundation of an offshore wind turbine is taken as the research subject. A coupled lowering model of the floating crane ship and the foundation is established using Sesam. The motion response of the coupled system and the tension response of the slings are analyzed for different sling layout configurations. The results show that the amplitudes of sway, roll, and yaw are higher for Type 3 and Type 4 configurations. This indicates that their stability is poorer compared to the other types. As the foundation sinks, the buoyancy force increases. This leads to a wider range of tension fluctuations in the slings before submergence. After full submergence, the tension fluctuation range decreases significantly. Type 3 and Type 4 configurations exhibit larger tension fluctuations due to lower sling stiffness and higher initial tension.

Key words

offshore wind turbines / dynamic response / floating cranes / jacket structure / suction bucket foundation / lowering process

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Zhang Xiaofei, Zhao Yebin, Cai Jinxin, Wang Tingyuan, Zhang Puyang. DYNAMIC ANALYSIS OF LOWERING FOUR-BUCKET JACKET FOUNDATION FOR OFFSHORE WIND POWER[J]. Acta Energiae Solaris Sinica. 2025, 46(11): 764-771 https://doi.org/10.19912/j.0254-0096.tynxb.2024-2317

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