HYDRODYNAMIC NUMERICAL SIMULATION AND RISK ANALYSIS OF OFFSHORE WIND POWER JACKET FOUNDATION UNDER NEW CONSTRUCTION TECHNOLOGY

Min Qiaoling; Jia Zhaolin; Lu Peng; Zhao Shuhua

doi:10.19912/j.0254-0096.tynxb.2020-0762

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (4) : 366-374. DOI: 10.19912/j.0254-0096.tynxb.2020-0762

Topics on Key Technologies for Safety of Electrochemical Energy Storage Systems and Echelon Utilization of Decommissioned Power Batteries

HYDRODYNAMIC NUMERICAL SIMULATION AND RISK ANALYSIS OF OFFSHORE WIND POWER JACKET FOUNDATION UNDER NEW CONSTRUCTION TECHNOLOGY

Min Qiaoling¹, Jia Zhaolin^1,2, Lu Peng³, Zhao Shuhua³

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Abstract

In this paper, a new construction technology of transportation and installation for jacket foundation by semi-submersible barge in vertical transportation is proposed, which provides upward buoyancy for jacket foundation through the diving process of the semi-submersible barge, thus reducing the lifting force of crane, and solving the applicability problem of field crane. Based on this new construction technology, the hydrodynamic model of jacket foundation for semi-submersible barge transportation and installation is established by using 3D potential flow theory. Through numerical simulation, the influence of diving depth, significant wave on the movement and force of jacket foundation & semi-submersible barge system is studied. In order to demonstrate the feasibility of transportation and installation of jacket foundation in semi-submersible barge, the risk analysis of diving operation of semi-submersible barge is carried out. The allowable roll angle of diving operation for the jacket foundation of semi-submersible barge transportation and installation is put forward, which limits the safe working conditions of semi-submersible barge and provides scientific basis and technical support for the new construction technology of jacket foundation transportation and installation.

Key words

offshore wind power / jacket foundation / transportation and installation / construction technology / hydrodynamic numerical simulation / risk analysis

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Min Qiaoling, Jia Zhaolin, Lu Peng, Zhao Shuhua. HYDRODYNAMIC NUMERICAL SIMULATION AND RISK ANALYSIS OF OFFSHORE WIND POWER JACKET FOUNDATION UNDER NEW CONSTRUCTION TECHNOLOGY[J]. Acta Energiae Solaris Sinica. 2022, 43(4): 366-374 https://doi.org/10.19912/j.0254-0096.tynxb.2020-0762

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