螺旋侧板和水深对浮式风机动态响应的影响  

The influence of helical strakes and water depth on dynamic responses of floating offshore wind turbines

作　　者：叶舟[1,2] 成欣[1] 周国龙[1] 李春[1,2] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《计算力学学报》2016年第1期51-58,共8页Chinese Journal of Computational Mechanics

基　　金：国家自然科学基金(51176129);上海市教育委员会科研创新(13YZ066);上海市研究生创新基金(JWCXSL1302)资助项目

摘　　要：为研究漂浮式风力机平台动态响应的优化措施,提出平台附加螺旋侧板的方式。建立基于Spar平台的5MW风力机整机模型,利用有限元软件进行水动力计算,得到不同水深条件下,风力机平台在风、浪、流载荷联合作用下的频域特性,通过与不附加螺旋侧板情况下的动态特性参数对比,探讨螺旋侧板是否对结构的频响特性起到提升作用。结果表明,附加螺旋侧板后,结构的垂荡和纵摇的运动幅值和所受波浪力均得到了显著抑制;与纵荡和纵摇相比,垂荡运动的幅值和所受波浪力所受影响更显著;水深变化对结构响应的幅值有着显著影响。To research the improvement methods for dynamic responses of floating offshore wind turbine（FOWT）,whole machine models for Spar platform supported FOWT were built to study the influence of helical strake on dynamic response.In order to study whether helical strake can improve the performance of FOWT,frequency-domain performances were gained to compare the structure with helical strake and the normal structure.Further study on dynamic performance of the structure under different water depth was carried out.The results show that the amplitude and wave force components of FOWT with helical strake are effectively suppressed.In addition,wave forces of heave motion are more apparently influenced by helical strake than surge and pitch motion.Besides,different water depth also affects the amplitude of structure performance.

关 键 词：漂浮式风力机 SPAR平台 螺旋侧板 频域响应 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]