Study on Hydrodynamic Stability of a Dot Matrix Offshore Wind Turbine Foundation Structure

doi:10.3969/j.issn.1004-132X.2023.20.005

Abstract

Abstract: A dot matrix offshore wind turbine integrated foundation design scheme was established based on the concept of wind turbine integration. The overall structural parameters and mechanics model were analyzed， and the feasibility and advantages of the overall scheme of the new dot matrix foundation（DMF） were established. Combined with the traditional OC4 semi-submersible wind turbine system， the hydrodynamic simulation was carried out under wind wave current loads. Results show that the stability of DMF in pitch motion is 70% higher than that of the traditional OC4 system. The small-scale prototype processing of DMF and the simulation experiments of wind and wave trough were completed based on similarity theory. Experimental results are in good agreement with the simulation data.

Key words: dot matrix, , multi-machine integration, , hydrodynamic response, , wave current test

摘要： 针对风电机组一体化概念建立了一种点阵式风电机组一体化基础（DMF）设计方案。对整体结构参数和力学模型进行分析，确立了新型点阵式基础整体方案可行性和优越性。结合传统OC4半潜式风机系统，开展风浪流载荷下的水动力模拟仿真，得出纵摇运动中DMF比传统OC4系统稳性提高了70%。基于相似理论开展了DMF小比例样机加工和风浪水槽模拟实验，实验结果与模拟数据具有较好的一致性。

关键词: 点阵式, 多机一体, 水动力响应, 波流试验

CLC Number:

ZHU Jiangfeng, CAO Yuguang, ZHAO Qiankun, LI Lei. Study on Hydrodynamic Stability of a Dot Matrix Offshore Wind Turbine Foundation Structure[J]. China Mechanical Engineering, 2023, 34(20): 2428-2433，2474.

朱江峰, 曹宇光, 赵前坤, 李磊. 一种点阵式海上风电机组基础结构水动力稳性研究[J]. 中国机械工程, 2023, 34(20): 2428-2433，2474.

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