MECHANICS AND FLOATING ANALYSIS OF THREE-BUCKET JACKET FOUNDATION FOR OFFSHORE WIND POWER IN DEEP WATER

Zhu Hang; Li Mengchao; Guo Yaohua; Yang Xu; Wang Haijun; Lian Jijian

doi:10.19912/j.0254-0096.tynxb.2021-0471

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (11) : 269-276. DOI: 10.19912/j.0254-0096.tynxb.2021-0471

MECHANICS AND FLOATING ANALYSIS OF THREE-BUCKET JACKET FOUNDATION FOR OFFSHORE WIND POWER IN DEEP WATER

Zhu Hang^1,2, Li Mengchao³, Guo Yaohua^1,2, Yang Xu^1,2, Wang Haijun^1,2, Lian Jijian^1,2

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Abstract

The wide and shallow three-bucket jacket foundation structure for offshore wind power was proposed based on a deep sea wind farm in Fujian, China. Then, the static and dynamic characteristics, floating stability of the wide and shallow three-bucket jacket foundation in layered soil were studied by establishing a foundation integral finite element model considering layered soil. The results show that the flange inclination rate of the foundation structure is 3.98‰ under normal load, which meets the requirements of the specifications. Under the ultimate load, the stress of each part of the foundation structure meets the requirements. The overall resonance check of foundation-tower-turbine meets the requirements： The foundation can be towed for long distance under the sea conditions within the wind and waves of level 4. Under the equivalent fatigue load, the fatigue damage of the foundation meets the requirements.

Key words

marine technology / offshore wind turbines / foundations / multi-bucket foundation / jacket / floating transportation

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Zhu Hang, Li Mengchao, Guo Yaohua, Yang Xu, Wang Haijun, Lian Jijian. MECHANICS AND FLOATING ANALYSIS OF THREE-BUCKET JACKET FOUNDATION FOR OFFSHORE WIND POWER IN DEEP WATER[J]. Acta Energiae Solaris Sinica. 2022, 43(11): 269-276 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0471

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