摘要
建立OC3-Hywind Spar Buoy平台的NREL 5 MW漂浮式风力机整机模型,采用基于辐射绕射理论的面元法和完整的二阶传递函数(QTF)计算一阶与二阶波浪载荷,并利用叶素-动量理论对叶片气动载荷进行计算.对一阶与二阶波浪载荷以及由其引起的波频与慢漂响应进行对比分析,并分别讨论风、浪联合作用和不同海况下风、浪、流联合作用时的波频与慢漂响应.结果表明:一阶波浪载荷比二阶波浪载荷至少大1个量级,但两者引起的动态响应幅值在同一个量级;气动载荷不仅影响慢漂响应,而且对波频响应也有一定影响;波频响应主要受海浪影响,慢漂响应主要受气动载荷影响.
A model was established for the NREL 5 MW floating wind turbine seating on an OC3-Hywind Spar Buoy platform, with which the first- and second-order wave forces were respectively calculated using the panel method based on radiation/diffraction theory and the quadratic transfer function, while the aero- dynamic load of blades was determined according to the blade element momentum theory. In addition, a comparative analysis was conducted on the first- and second-order wave force and their resulting wave fre- quency and slow drift response respectively under the combined wind-wave effect and wind-wave-current effect. Results show that the first-order wave force is at least one order greater in magnitude than the sec- ond-order wave force, but the response amplitude caused by them is at the same level. Wind load affects not only the slow drift response but also the wave frequency response. The wave frequency response is mainly affected by waves, while the slow drift response is basically affected by wind.
出处
《动力工程学报》
CAS
CSCD
北大核心
2016年第11期907-913,共7页
Journal of Chinese Society of Power Engineering
基金
国家自然科学基金资助项目(51176129
51676131)
教育部高等学校博士学科点专项科研基金(博导)资助项目(20123120110008)
上海市教育委员会科研创新(重点)资助项目(13ZZ120
13YZ066)
上海市研究生创新基金资助项目(JWCXSL1402)
关键词
漂浮式风力机
波频响应
慢漂响应
Spar
QTF
offshore floating wind turbine
wave frequency response
slow drift response
Spar
QTF
