摘要
以新型半潜式浮式风机系统为研究对象,建立全耦合物理水池试验模型。通过系列水池模型试验,对浮式风机的固有特征和多物理场全耦合作用下系统总体响应进行试验研究。研究结果表明,系统六自由度固有周期均远离实际海上波浪频率范围,作业环境3.92 m有义波高和极端环境9.5 m有义波高下纵/横摇运动最大值显著小于设计要求最大值约50%和10%,这表明新型浮式平台具有优良的运动稳性。试验中还发现,作业过程中塔筒顶部载荷存在叶片3P振动与塔筒一阶固有频率多模态叠加谐振现象,应当在结构优化中给予关注。
Taking a new semi-submersible floating wind power system as the research object,a fully coupled physical pool test model was established.Through a series of pool model tests,the inherent characteristics of the floating wind turbine system and the overall response of the system under the full coupling of multiple physical fields were studied.The results show that the six degrees of freedom natural periods of the system are far away from the actual offshore wave frequency range,and the maximum pitch motion is significantly less than the design permitted maximum value by 50%and 10%for operation condition Hs 3.92 m and extreme condition Hs 9.5 m,indicating that the new floating platform has excellent motion stability.It is also found in the test that there is a multi-modal superposition resonance between the 3 P rotation of the blade and natural period of the tower,which should be paid attention to in the structural optimization.
作者
赵战华
范亚丽
匡晓峰
周舒旎
张凯
ZHAO Zhanhua;FAN Yali;KUANG Xiaofeng;ZHOU Shuni;ZHANG Kai(China Ship Scientific Research Center,Wuxi 214082,China;CSIC Haizhuang Wind Power Co.,Ltd.,Chongqing 401122,China)
出处
《振动与冲击》
EI
CSCD
北大核心
2022年第20期252-257,共6页
Journal of Vibration and Shock
关键词
新型
半潜式
耦合
塔筒顶部载荷
水池试验
new type
semi-submersible
coupling
tower top load
pool test
