| 温毅涵，王凯，吴皓，刘珈铭，徐珂珂，黎祖福.新型可升降桁架重力式养殖网箱设计和水动力性能研究[J].海洋工程,2026,(1):26~34 |
| 新型可升降桁架重力式养殖网箱设计和水动力性能研究 |
| Design and hydrodynamic performance of a new liftable truss gravity cage for aquaculture |
| 投稿时间：2024-11-07 修订日期：2024-12-16 |
| DOI：10.16483/j.issn.1005-9865.2026.01.003 |
| 中文关键词: 升降桁架重力式网箱 养殖网箱 势流理论 数值模拟 水动力性能 |
| 英文关键词:liftable truss gravity cage aquaculture cage potential flow theory numerical simulation hydrodynamic performance |
| 基金项目:广东省海上风电联合基金重点项目（2022B1515250005）；南方海洋科学与工程广东省实验室（珠海）自主科研项目 （SML2024SP002） |
|
| 摘要点击次数: 33 |
| 全文下载次数: 0 |
| 中文摘要: |
| 针对传统重力式网箱维护成本高、难度大及极端海况下剩余体积系数过低、稳定性差的问题，采用桁架结构对传统重力式网箱进行改进，并基于桁架结构，增加贮水舱室以实现养殖网箱大范围的升降功能。基于三维势流理论和非线性有限元方法，建立新型可升降桁架重力式养殖网箱的数值模型，对新型网箱在真实海况下不同吃水条件的系泊缆张力、网箱剩余体积系数、网箱运动响应进行了研究。结果表明：新型网箱在增加桁架结构并实现升降功能后，网箱结构的安全性和稳定性显著提高，且在极端海况下网箱剩余体积系数与稳定海况相比无明显变化；50年重现期海况网箱沉底前后系泊缆的轴向张力峰值降低35.0%，标准偏差降低34.0%，水平方向位移最大值减小33.9%，网箱倾角范围减小了75.3%。 |
| 英文摘要: |
| To address the issues of high maintenance costs, difficulty of upkeep, excessively low volume reduction coefficient, and poor stability of traditional gravity cages under extreme sea conditions, a truss structure was adopted to improve the conventional gravity-based cage. Based on this truss structure, water storage compartments were incorporated to enable large-scale lifting and lowering functions for aquaculture cages. Using three-dimensional potential flow theory and nonlinear finite element methods, a numerical model of the new-type liftable truss gravity aquaculture cage was established. This model was employed to investigate mooring line tensions, cage volume reduction coefficient, and motion responses under different draught conditions in real sea states. The results indicated that after incorporating the truss structure and achieving lifting and lowering capability, the safety and stability of the cage were significantly enhanced. Furthermore, under extreme sea conditions, the cage volume reduction coefficient remained largely unchanged compared with stable conditions. In sea states with a 50-year return period, the peak axial tension of the mooring lines decreased by 35.0%, the standard deviation decreased by 34.0%, the maximum horizontal displacement was reduced by 33.9%, and the cage inclination range decreased by 75.3% before and after the cage settled on the seabed. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
