摘要
为研究海上浮式风机在复杂海况下的动力响应,采用缩比模型水池试验方法研究不同波浪参数、流载荷、风载荷等因素对动力响应的影响。运用自编译的风力控制程序实现对风载荷非定常、间断加载特性的有效模拟,并与定常风载荷结果进行比较。试验结果表明:与定常风相比,采用脉动风载荷可进一步观测到脉动风场峰值对风机纵摇运动峰值的影响;当脉动风的风向保持180°不变时,受系泊系统约束的影响,在浪向发生变化时脉动风载荷的存在会显著增大横摇和纵摇运动的幅度,同时抑制纵荡、横荡和艏摇运动;当风载荷作用的影响大于流载荷及波浪作用时,风载荷引起的扭转作用会影响系泊缆张力分布;在一年一遇及五十年一遇海况下,塔筒力矩变化情况与作业海况下一致,横向力矩和横摇均随浪向增加先增大后减小,纵向力矩和纵摇则随浪向增加先减小后增大。
In order to investigate the dynamic response of the offshore floating wind turbines under complex sea conditions,a scaled model basin test is conducted to examine the impact of various factors such as wave parameters,current load,and wind load on the dynamic response.A self-compiled wind control program is employed to effectively simulate the unsteady and intermittent loading characteristics of wind load,and the results are compared with those obtained under steady wind load.The test results show that:the pulsating wind allows for the further observation of the impact of peak pulsating wind speeds on the peak pitch motion of the turbine,in addition to the effects of steady wind;when the direction of the pulsating wind remains constant at 180°,influenced by the constraints of the mooring system,the presence of the pulsating wind load significantly amplifies the amplitude of roll and pitch motions while suppressing surge,sway,and yaw motions as the wave direction changes;when the influence of wind load exceeds that of the current and wave actions,the torsional effect induced by the wind load affects the tension distribution in the mooring lines;under the sea conditions that occur once a year or once every fifty years the variation in tower moment is consistent with that under the operational sea conditions,with the lateral moment and roll both increasing first and then decreasing as the wave direction increases,while the longitudinal moment and pitch decrease first and then increase with increasing wave direction.
作者
朱彦祺
赵战华
匡晓峰
高阳
邬志佳
ZHU Yanqi;ZHAO Zhanhua;KUANG Xiaofeng;GAO Yang;WU Zhijia(National Key Laboratory of Hydrodynamics,China Ship Scientific Research Center,Wuxi 214082,Jiangsu,China;Zhejiang Goldwind Science&Technology Co.,Wenzhou 325025,Zhejiang,China)
出处
《中国海洋平台》
2025年第6期15-23,42,共10页
China offshore Platform
基金
2023年度尖兵领雁攻关项目(编号:2023C01008)。
关键词
浮式风机
动力响应
水池试验
风载荷
受力分析
系泊系统
floating wind turbine
dynamic response
basin test
wind load
force analysis
mooring system
