变桨轴承是风电机组的关键部件,其应力状态和变形对风电机组的安全运行有重大的影响.建立承受联合载荷作用的变桨轴承的计算模型,采用Newton-Raphson方法计算变桨轴承在外载荷作用下的变形情况.并应用ANSYS软件建立变桨轴承有限元模型,模拟轴承在联合载荷作用下的应力场和变形量.有限元分析结果验证了计算模型的准确性,可为变桨轴承结构设计提供理论依据、%Pitch beating is a key component of wind turbine.The stress state and deformation of pitch bearing has major impact on operation safety of wind power system.A calculation model of pitch beating considering combined loads is proposed.The deformation of a typical pitch beating is calculated by using Newton-Raphson method.The stress distribution and deformation of pitch bearing are simulated by implementation of a finite element model in ANSYS.The results show that the theoretical calculation model is correct and has enough accuracy,which provides a simple calculation method in pitch bearing structural design.
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