摘要
针对一种功率为50 kW的H型垂直轴风力机,为解决传统半潜式平台垂荡响应大的问题,设计一种安装垂荡架的半潜式风力机平台。考虑风、流及波浪载荷的综合作用,采用绕射/辐射理论和水动力分析方法,对传统平台和垂荡架平台的运动进行数值模拟,结合正交设计方法研究外浮筒数目、垂荡架安装位置、垂荡架形状对平台运动响应的影响。结果表明,在频域分析中,与传统平台相比,垂荡架平台在垂荡、纵荡、纵摇3个方向上的响应极值均有明显降低,垂荡响应极值减小10.4%;时域耦合分析结果与频域分析规律相同,垂荡架平台在垂荡、纵荡、纵摇3个方向上的响应极值、标准差均比传统平台降低,表明安装垂荡架后平台的稳定性更好;正交试验结果表明,对半潜式垂荡架平台垂荡时域RAO极值影响最大的因素是外浮筒的数目,其次是垂荡架布置位置,影响最小的是垂荡架的形状。
In order to solve the problem of large heave response of traditional semi-submersible platform,a semi-submersible wind turbine platform with heave frame was designed for a 50 kW wind turbine with the H-type vertical axis.Considering the comprehensive effect of wind load,current load and wave load,the diffraction/radiation theory and hydrodynamic analysis methods were used to simulate the traditional platform and heave platform.Combined with the orthogonal design method,the effects of the number of external buoys,the installation position of the heave frame and the shape of the heave frame on the motion response of the platform were studied.The results showed that in frequency domain analysis,compared with the traditional platform,the response extreme value of heave frame platform in the three directions of heave and pitching is obviously reduced,and the extreme value of heave response is reduced by 10.4%.The results of time domain coupling analysis are similar to those of frequency domain analysis.The response extreme value and standard deviation of heave frame platform in the three directions of heave and pitch are lower than those of traditional platform,showing that the stability of the platform is better after installation of heave frame.The orthogonal test results showed that the most important factor affecting the RAO extreme value of the semi-submersible heave platform in the heave time domain is the number of outer buoys,the second is the arrangement position of the heave frame,and the least influence is the shape of the heave frame.
作者
张立军
于洪栋
缪俊杰
朱怀宝
顾嘉伟
李想
ZHANG Li-jun;YU Hong-dong;MIAO Jun-jie;ZHU Huai-bao;GU Jia-wei;LI Xiang(College of Mechanical and Electronic Engineering, China University of Petroleum (East China), Qingdao Shandong 266580, China)
出处
《船海工程》
北大核心
2020年第3期125-131,共7页
Ship & Ocean Engineering
基金
中央高校基本科研业务专项资助(17CX05021)。
关键词
半潜式平台
垂荡架
垂荡响应
正交设计
水动力性能
semi-submersible platform
heave frame
heave response
orthogonal design
hydrodynamic performance
作者简介
第一作者:张立军(1977—),男,博士,教授,研究方向:新能源科学与工程。
