平均风速对海上风力机塔架动力响应的影响
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摘要
以海上风力机塔架为研究对象,给出了考虑几何非线性的塔架结构控制方程,采用SolidWorks软件完成了塔架三维建模,基于ANSYS软件进行了有限元网格的无关性验证。计算并分析了不同平均风速下塔架的位移和Mises应力响应,揭示了塔架最大位移和最大Mises应力随平均风速变化的规律。这可为风机塔架的运行安全和可靠性设计提供指导。
Taking an offshore wind turbine tower as the research object,the control equations of the tower structure with geometric nonlinearity considered are given,and a 3 D modeling of tower is achieved by using SolidWorks software. Besides,the independent verification of finite element mesh is carried out based on ANSYS software. The response of displacement and Mises stress of the tower under different average wind speeds is calculated and analyzed,and the varying rules of the maximum displacement and maximum Mises stress of the tower with the average wind speed are revealed,which can provide guidance for operational safety and reliability design of wind turbine tower.
Taking an offshore wind turbine tower as the research object,the control equations of the tower structure with geometric nonlinearity considered are given,and a 3 D modeling of tower is achieved by using SolidWorks software. Besides,the independent verification of finite element mesh is carried out based on ANSYS software. The response of displacement and Mises stress of the tower under different average wind speeds is calculated and analyzed,and the varying rules of the maximum displacement and maximum Mises stress of the tower with the average wind speed are revealed,which can provide guidance for operational safety and reliability design of wind turbine tower.
引文
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[2]闫海津,胡丹梅,李佳.水平轴风力机叶轮流场的数值模拟[J].上海电力学院学报,2010,26(2):123-126.
[3]张湘伟,文武.大型风力机塔架在脉动风下的动力响应特性研究[J].四川理工学院学报(自然科学版),2013,26(2):32-35.
[4]刘新喜,邓宗伟,高乾丰.基于时域法的不同塔架风力机抗台风分析[J].湖南大学学报(自然科学版),2017,44(11):81-87.
[5]王介龙,陈彦,薛克宗.风力发电机耦合转子/机舱/塔架的气弹响应[J].清华大学学报(自然科学版),2002,42(2):211-215.
[6]ZHANG J P,HAN Y,ZHOU A X,et al.Study on vibration of the offshore large-scale wind turbine blade under fluid structure interaction at different wind speeds[J].Journal of Vibroengineering,2014,16(6):3236-3246.
[7]ZHANG J P,ZHANG K G,ZHOU A X,et al.Analysis of nonlinear dynamic response of wind turbine blade under fluidstructure interaction and turbulence effect[J].Journal of Engineering for Gas Turbines and Power,2014,136(10):102604.
[8]GLCK M,BREUER M,DURST F,et al.Computation of wind-induced vibrations of flexible shells and membranous structures[J].Fluids and Structures,2003(17):739-765.
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