齿间滑动摩擦对行星轮系非线性振动的影响  

Impacts of Sliding Friction on Planetary Gear Train Nonlinear Vibration

作　　者：卫一多[1] 刘凯[1] 崔亚辉[1] 赵常青[1] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,陕西西安710048

出　　处：《西安理工大学学报》2011年第3期253-260,共8页Journal of Xi'an University of Technology

基　　金：国家自然科学基金资助项目(51175419);陕西省"13115"科技创新工程重大科技专项基金资助项目(2008ZDKG-28);陕西省重点学科建设专项基金资助项目(080204)

摘　　要：考虑齿间互动摩擦和时变刚度非线性因素,建立扭转行星轮系动力学模型。根据齿间摩擦的特点,将啮合周期划分为三个阶段。用解析和数值计算相结合的方法,研究行星轮系齿间滑动摩擦、齿间载荷分配系数、相位差等参数对行星轮系非线性振动和稳定性的影响。发现在考虑齿间滑动摩擦力时,行星轮系非线性动力学存在如下特点:摩擦因子对行星轮系各构件的摩擦振幅有重要影响,特别对太阳轮的影响最为明显;相位差的存在改善了行星轮系啮合刚度的分布,对减小各构件的摩擦振幅和提高系统的参数稳定性有重要影响。研究结果表明,齿间滑动摩擦对行星轮系非线性振动动力学的影响不容忽视,尤其是在低速、重载的工况下。In considering the interactive friction among gear teeth and the nonlinear factors of time fluctuation stiffness,dynamic model of rotational planetary gear train is established.Based on the features among gear friction,mesh period can be divided into three segments.Impact of sliding friction,load distribution among gear teeth coefficient,phase of planetary gear train are studied by analytical method and numerical calculation.When the sliding friction is considered,the nonlinear dynamics of planetary gear train has following characteristics：the friction of amplitude is significantly effected by friction factor,the amplitude of sun is more sensitive than others.The existence of phase of planetary gear train can improve mesh stiffness distribution,the phase has an important influence on friction of amplitude and improves the stability of system.Research shows that sliding friction impact of nonlinear dynamics on planetary gear train can not be ignored espically in the case of low speed and heavy load.

关 键 词：滑动摩擦 参数不稳定性 行星轮系 非线性响应 

分 类 号：TH132.4[机械工程—机械制造及自动化]