| 刘英芳，黎国彦，李志雨，李焱.非线性波浪载荷对15 MW半潜型浮式风机基础运动响应的影响研究[J].海洋工程,2025,(3):16~26 |
| 非线性波浪载荷对15 MW半潜型浮式风机基础运动响应的影响研究 |
| Study on the effect of nonlinear wave loads on the motion response of the foundation of a 15 MW semi-submersible floating wind turbine |
| 投稿时间：2024-11-19 修订日期：2025-01-20 |
| DOI：10.16483/j.issn.1005-9865.2025.03.002 |
| 中文关键词: 15 MW半潜型浮式风机 非线性波浪载荷 瞬时湿表面 基础运动响应 |
| 英文关键词:15 MW semi-submersible floating wind turbine nonlinear wave loads instantaneous wet surface foundation motion response |
| 基金项目:国家重点研发计划资助项目（2023YFB4203301）；国家自然科学基金项目（52471298）；天津市企业科技特派员项目（23YDTPJC00080） |
|
| 摘要点击次数: 9 |
| 全文下载次数: 2 |
| 中文摘要: |
| 浮式风机基础在波浪中的运动呈现非线性，其所受非线性波浪载荷包括计及考虑瞬时湿表面变化的回复刚度和入射力，以及二阶速度势产生的波浪载荷。线性势流理论无法反映这些特性，对基础运动响应的预报准确性不足。采用15 MW半潜型浮式风机模型，基于三维势流理论和直接时域积分法，分别在额定作业和极端生存海况下，对比线性波浪载荷和非线性波浪载荷对基础运动响应的影响。结果表明，非线性波浪载荷会显著增大浮式基础的低频响应，并激发其在固有频率下的运动。纵荡和纵摇对非线性波浪载荷更为敏感，而垂荡所受影响最小。环境参数主要影响运动响应在不同频率下的能量占比。 |
| 英文摘要: |
| The motion of floating wind turbine foundations under wave conditions is nonlinear. The nonlinear wave loads include the restoring stiffness and incident forces considering instantaneous wet surface changes, as well as the wave loads generated by the second-order velocity potential. Linear potential flow theory cannot capture these characteristics, leading to insufficient accuracy in predicting the foundation's motion response. Using a 15 MW semi-submersible floating wind turbine model, and based on three-dimensional potential flow theory and direct time-domain integration method, the effects of linear and nonlinear wave loads on the foundation's motion response are compared under both rated operating and extreme survival sea conditions. The results show that nonlinear wave loads significantly increase the low-frequency response of the floating foundation and excite its motion at natural frequencies. Surge and pitch are more sensitive to nonlinear wave loads, while heave is least affected. Environmental parameters mainly influence the energy proportion of the motion response across different frequencies. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
