风荷载对全潜式浮式风机拖航运动响应的影响  

Effect of Wind Loads on Towing Response of Submersible Floating OWT

作　　者：赵业彬 任建宇 乐丛欢[2] ZHAO Yebin;REN Jianyu;LE Conghuan(Shandong Electric Power Engineering Consulting Institute Co.,Ltd.,Ji'nan 250013,Shandong,China;School of Civil Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]山东电力工程咨询院有限公司,山东济南250013 [2]天津大学建筑工程学院,天津300072

出　　处：《南方能源建设》2024年第1期176-184,共9页Southern Energy Construction

基　　金：国家自然科学基金资助项目“深远海漂浮式基础和风电机组一体化拖航系统耦合动力响应及调控机理研究”(52271287)。

摘　　要：[目的]为了解决浮式风机拖航运输的安全问题,对全潜式浮式基础风机的拖航运动特性展开研究。[方法]针对全潜式浮式风机拖航过程,通过Moses软件建立了“全潜式浮式风机-拖缆绳-拖船”一体化拖航系统数值模型,设置了五组不同的海况对拖航过程进行计算。文章研究风速和风浪方向对全潜式浮式风机拖航运动响应的影响,并根据分析结果,提出有助于全潜式浮式风机拖航安全的建议。[结果]结果表明:相比于横摇运动,全潜式浮式风机的纵摇和垂荡运动受风速影响较为明显,风速越大,运动幅度越大;当风浪方向为90°时,风机的横摇运动受风浪方向影响较大,风浪方向为0°时,风机的纵摇和垂荡运动受风浪方向影响较大。[结论]在保证拖航过程在拖航窗口期的前提下,实际工程中建议对全潜式浮式风机采用逆风拖航的方式,以降低风机振动和共振的风险。同时,应尽量避免风向与拖航方向垂直的情况,两者垂直容易引发较大程度的横摇运动,使拖航过程较为危险。逆风拖航时,在超过平均海况的较大风速30.9 m/s下,全潜式浮式风机的运动响应及拖缆力仍能满足安全拖航的要求。[Introduction]In order to solve the safety problem of towing transportation of floating OWT(offshore wind turbine),the towing characteristics of fully submersible floating OWT are studied.[Method]The model of the fully submersible floating OWT towing system was established through Moses software.For the towing process,five groups of sea conditions were set up for simulation,the numerical model calculations were carried out,the influence of wind speed and wind wave direction on towing response of fully submersible floating OWT was studied.According to the analysis results,some suggestions were put forward to help the towing safety of the fully submersible floating OWT.[Result]The results show that,compared with rolling,the pitch and heave of the fully submersible floating OWT are more obviously affected by the wind speed,and the greater the wind speed,the greater the motion amplitude;when the wind wave direction is 90°,the rolling of OWT is greatly influenced by the wind wave direction,and when the wind wave direction is 0°,the pitch and heave of the OWT is greatly influenced by the wind wave direction.[Conclusion]On the premise of ensuring that the towing process is within the towing window period,it is suggested that the fully submersible floating OWT should be towed against the wind in practical engineering to reduce the risk of vibration and resonance of OWT.At the same time,we should try our best to avoid the situation that the wind direction is perpendicular to the towing direction,which will easily lead to a large degree of rolling and make the towing process more dangerous.When towing against the wind,the motion response and towing force of the fully submersible floating OWT can still meet the requirements of safe towing at a large wind speed of 30.9 m/s exceeding the average sea condition.

关 键 词：全潜式浮式风机 拖航稳性 Moses数值模拟 风速 风向 

分 类 号：TK89[动力工程及工程热物理—流体机械及工程] TM315[电气工程—电机]