双行星排式动力耦合机构动态特性分析  

Dynamic Characteristic Analysis of Double Planetary Gear Power Coupling Mechanism

作　　者：郑铭垠 左言言[1] 吴传刚[1] 杨忠凯[1] 

机构地区：[1]江苏大学振动噪声研究所,江苏镇江212013

出　　处：《重庆理工大学学报（自然科学）》2017年第6期47-56,77,共11页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51575238)

摘　　要：以某款混合动力汽车动力耦合机构为例,综合应用UG、ADAMS及ANSYS建立双行星排式动力耦合机构刚柔耦合动力学模型;对建立的系统动力学模型进行典型工况下的仿真分析,通过分析前后排行星轮系轮齿啮合力、轴系角加速度的时域和频域响应曲线,得到该动力耦合机构在稳态(如纯电动、巡航)和非稳态(如发动机起动)工况下的动态特性。仿真结果表明:该动力耦合机构稳态工况下动态特性峰值频率主要为低频段的旋转频率和两行星排的啮合频率及其倍频;非稳态工况初期存在瞬时冲击激励,但前排行星轮系动态特性的变化对后排行星轮系影响较小。Taking a double planetary gear power coupling mechanism of hybrid electric vehicle as an example, this paper established multi-body system dynamics model of the double planetary gear power coupling mechanism through the comprehensive application of UG, ADAMS and ANSYS. Then, simulation analysis of multi-body system dynamics model under typical steady conditions was carried out. Through the analysis of time domain and frequency domain response curve of shafting angular acceleration and meshing forces, this paper obtained the dynamic characteristics of coupling mechanism in the steady state conditions （such as electric, cruise） and non-steady state conditions （such as engine starting）. Simulation results show that in the steady state conditions, the peak frequency of dynamic characteristics is rotating frequency, meshing frequency of double row of gear planetary and its octave. Transient impact exists in the initial stage of non-steady state, but the dynamic characteristics of front row planetary gear have little influence on rear planet gear.

关 键 词：混合动力汽车 动力耦合机构 行星齿轮 动态特性 

分 类 号：TH113[机械工程—机械设计及理论]