摘要
针对风电行星齿轮传动系统,根据齿轮啮合特性,系统地分析推导太阳轮-行星轮、内齿圈-行星轮单、双齿啮合时各啮合齿面的摩擦力臂。基于混合弹流润滑模型,分析各啮合齿面间的摩擦力。建立包含混合弹流润滑摩擦力、时变啮合刚度、传动误差与齿侧间隙等因素的多自由度的平移-扭转耦合集中参数非线性动力学模型。算例结果表明,作为一种内部参数激励,摩擦力加剧了系统沿啮合线方向的振动;与边界润滑相比,混合弹流润滑能减小系统的振动。实验证明,该模型可很好地预测风电行星齿轮的非线性动力学特性。
A nonlinear generalized lumped parameter model of half-direct wind turbine planetary gear set with mixed elastohydrodynamic lubrication friction force, time-varying meshing stiffness, transmission error and backlash was established. The arms of friction force of sun-planetary gear pair and ring-planetary gear pair were deduced in consideration of the number of meshing gear tooth in meshing zone. The friction force of each meshing gear pair was systematically investigated based on the mixed elastohydrodynamic lubrication model. The Runge-Kutta method was used to solve the nonlinear dynamic model established in this paper. The results showed that as a parametric excitation the friction force exacerbates the vibration. Comparing with the boundary lubrication, the mixed elastohydrodynamic lubrication reduces the vibration. Comparison to a measured wind turbine planetary velocity spectrum is provided to demonstrate that the proposed mechanisms is capable of describing the measured behavior
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第7期1695-1701,共7页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(51305276)
辽宁省教育厅一般项目(L2014039)
辽宁省博士启动基金(201501085)
关键词
非线性动力学
风力发电机
行星传动系统
混合弹流润滑
摩擦力
nonlinear dynamic
wind turbine
planetary set
mixed elastohydrodynamic lubrication
friction force
