摘要
旨在研究风载方向和波浪方向不共线对浮式风机基础动态特性影响。以5 MW浮式风机为研究对象,采用等效载荷法模拟空气动力载荷,建立浮式风机系统耦合动力学模型,研究风浪呈0°、30°、60°和90°夹角工况时,浮式风机基础动态特性变化。结果表明:风浪不共线对浮式平台纵荡和横荡运动平衡位置影响很大,对垂荡运动响应影响很小。随着风浪夹角增大,横摇和艏摇运动振荡范围增大,纵摇运动振荡范围减小。风浪不共线使得系泊系统张力响应变化明显,张力变化趋势与平台运动及系泊布置有关。
Here,effects of wind-wave misalignment on dynamic characteristics of a floating offshore wind turbine foundation were investigated.A 5 MW floating offshore wind turbine was taken as the studying object,its aerodynamic loads were simulated with the equivalent load method,and its coupled dynamic model was established.Under working conditions of wind-wave angles of 0°,30°,60°and 90°,changes of dynamic characteristics of the turbine foundation were studied.Results showed that effects of wind-wave misalignment on the floating platform’s surge and sway equilibrium positions are very large,while wind-wave misalignment has little effects on the floating platform’s heave response;with increase in wind-wave angle,the platform’s roll and yaw oscillation ranges increase,while its pitch oscillation range decreases;wind-wave misalignment makes the mooring system’s tension response vary obviously,the tension variation trend is related to platform motions and mooring arrangement.
作者
李修赫
朱才朝
谭建军
樊志鑫
倪高翔
LI Xiuhe;ZHU Caichao;TAN Jianjun;FAN Zhixin;NI Gaoxiang(State Key Lab of Mechanical Transmission,Chongqing University,Chongqing 400044,China)
出处
《振动与冲击》
EI
CSCD
北大核心
2020年第13期230-237,共8页
Journal of Vibration and Shock
基金
国家自然科学基金(51575061)
重庆大学中央高校基本科研业务费项目(2019CDCGJX0017)。
关键词
风浪不共线
浮式风机基础
系泊系统
动力学模型
动态特性
wind-wave misalignment
floating offshore wind turbine foundation
mooring system
dynamic model
dynamic characteristics
