太阳轮偏心误差对人字齿行星传动动态特性影响  

Effect of Sun Gear Manufacturing Eccentric Errors on Dynamic Performances of Herringbone Planetary Gear Train

作　　者：秦大同[1] 任菲[1] 吴晓铃[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400044

出　　处：《东北大学学报（自然科学版）》2015年第5期709-714,共6页Journal of Northeastern University(Natural Science)

基　　金：国家重点基础研究发展计划项目(2014CB046304);国家科技支撑计划项目(2011BAF09B07)

摘　　要：以人字齿行星齿轮为研究对象,考虑人字齿轮实际结构,基于集中参数理论,建立计入各个构件轴向振动的人字齿轮行星传动广义动力学模型,建模中考虑制造偏心误差和齿廓误差、轴承支撑刚度、轮齿时变啮合刚度和陀螺效应等影响因素.该模型可用于具有不同类型制造误差和任意数目行星轮的人字齿行星传动振动性能分析.采用数值算法求解系统受迫振动响应,分别分析了时域和频域动态响应.以太阳轮制造偏心误差Es为例,着重研究Es对人字齿行星传动动态特性影响规律.结果表明:制造误差Es增强了人字齿行星传动系统中的动态响应以及动态啮合力的波动.Based on the structure of herringbone gears and using the lumped-parameter method, a generalized dynamic model of a herringbone planetary gear train （HPGT） was presented to study the forced vibration characteristics. Taking into account the manufacturing eccentric errors and tooth profile errors, bearing stiffness, time-varying mesh stiffness, and gyroscopic effect, the model can be utilized for the vibration performance analysis with different types of manufacturing errors and arbitrary number of planets. The forced vibrations of an HPGT were numerically computed with the presented model, and analyzed in time and frequency domain, respectively. The effects of manufacturing errors especially the sun gear eccentric error Es on dynamic characteristics were discussed, revealing that manufacturing error excitations, such as the sun gear eccentric error Es, enhance the dynamic responses and dynamic mesh force fluctuations in HPGT.

关 键 词：人字齿行星传动 制造误差 时变啮合刚度 动力学模型 动态特性 

分 类 号：TH113[机械工程—机械设计及理论]