波流联合极端工况下的海上风电导管架-网箱组合结构水动力特性分析  

Analysis of the Hydrodynamic Characteristics of Offshore Wind Jacket-cage Structure under Combined Wave-current Extreme Conditions

作　　者：初岳峰 王凯 彭婧芙 吴韩 叶辰宇 CHU Yue-feng;WANG Kai;PENG Jing-fu;WU Han;YE Chen-yu(School of Ocean Engineering and Technology,Sun Yat-Sen University,Zhuhai Guangdong 519082,China;Keen Offshore Engineering Co.,Ltd,Foshan Guangdong 528226,China)

机构地区：[1]中山大学海洋工程与技术学院,广东珠海519082 [2]广东联塑精铟科技有限公司,广东佛山528226

出　　处：《船海工程》2025年第1期146-152,159,共8页Ship & Ocean Engineering

基　　金：广东省促进经济高质量发展专项资金(海洋经济发展)重点项目(粤自然资源合[2022]23号);广东省海上风电联合基金-重点项目(2022B1515250005)。

摘　　要：为探究将海上风电导管架基础与养殖网箱结合的可行性,运用屏模型和有限元方法建立导管架-网箱组合结构的数值模型,进行时域动态模拟,对比研究该组合结构在不同环境条件下的受力特性。结果表明,在规则波作用下,加装网箱对导管架桩基最大水平载荷的影响较小。与波浪相比,网箱的水动力载荷受流速影响更大,导管架桩基水平载荷对海流入流角的变化较为敏感。当流速较高时,网箱导致桩基最大水平载荷显著增加,应在导管架桩基设计时考虑网箱的影响。网箱与导管架之间连接线的最大拉力随规则波波高的增大而显著增大。极端工况下网箱与导管架之间连接点承受拉力较大,宜采用多点分布式固定。In order to investigate the feasibility of combining offshore wind jacket foundation with fish cage,the numerical model of the jacket-cage combination structure was established by using both screen model and finite element method,and the time domain dynamic simulation was carried out to comparatively study the force characteristics of this combination structure under different environmental conditions.The results showed that under the action of regular waves,the addition of the fish cage has less influence on the maximum horizontal load of the jacket foundation;compared with waves,the hydrodynamic load of the fish cage is more influenced by the current velocity,and the horizontal load of the jacket foundation is more sensitive to the change of the current propagation direction.When the current velocity is high,the fish cage causes a significant increase in the maximum horizontal load on the jacket foundation,thus the influence of the fish cage should be considered in the design of the jacket foundation.The maximum tension of the connection line between the fish cage and the jacket increases significantly with the increase of the regular wave amplitude.The connection point between the fish cage and the jacket under harsh offshore conditions is subjected to larger tensile force,so it is appropriate to adopt multi-point distributed fixing.The integration of offshore wind and aquaculture can improve the utilization rate of sea area with certain advantages.

关 键 词：导管架基础 养殖网箱 屏模型 有限元模型 恶劣海况 

分 类 号：U661.3[交通运输工程—船舶及航道工程] P751[交通运输工程—船舶与海洋工程]