摘要
选用OC3-Hywind Spar平台为研究对象,建立海上漂浮式风力机整机模型,在平台压舱部分,分别用混凝土、海水作为压载物,运用有限元软件ANSYS水动力模块,考虑风、浪、流联合作用,对两种不同压载物下平台的水动力特性进行分析。结果表明：在相同海况下,分别用混凝土和海水作Spar平台的压载物时,平台纵荡和垂荡运动的幅值运动响应算子（RAO）随频率的变化趋势基本近似,纵摇运动均在约0.5 rad/s频率下出现响应峰值,分别为5.8°、1.2°,该值前后均为急升急降趋势,在1.0 rad/s后趋于平稳,但前者的峰值高于后者;平台垂荡运动RAO随时间的变化趋势基本近似,前者平台的纵荡与纵摇运动的RAO值均大于后者,纵荡运动两者响应的峰值均为1. 8、0.7 m,纵摇运动两者响应的峰值分别为11.7°、2.4°;前者平台总体运动响应要大于后者,后者平台整体的稳定性高于前者。
The OC3-Hywind Spar platform was used as the object of study. The model of offshore floating wind turbine was established. For the platform ballast, concrete and seawater were used. The finite element software ANSYS was used to consider wind and the hydrodynamic characteristics of the two different ballast platforms. The results showed that the RAO of the platform swing and the heave motion are essentially similar to the frequency of the platform when the concrete and the seawater are used as the ballast for the Spar platform under the same sea conditions. The pitching motion is about the same peak frequency at the same wave frequency, but the peak of the former is higher than the latter. The trend of RAO fluctuation o- ver time is similar, and the RAO of the former platform is larger than that of the latter. The overall motion response of the former platform is larger than that of the latter, and the overall stability of the latter platform is higher than the former.
作者
叶舟
詹枞州
詹培
李春
YE Zhou;ZHAN Zong-zhou;ZHAN Pei;LI Chun(School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai,China,Post Code ： 20009)
出处
《热能动力工程》
CAS
CSCD
北大核心
2018年第11期130-137,共8页
Journal of Engineering for Thermal Energy and Power
基金
国家自然科学基金(51676131)
上海市科委项目资助(13DZ2260900)~~
