同轴双输出行星减速器振动分析及噪声预估  

Vibration Analysis and Noise Evaluation of Coaxial Planetary Gear Reducer with Dual Power Output

作　　者：林腾蛟[1] 蒋仁科[1] 李润方[1] 杜雪松[1] 

机构地区：[1]重庆大学机械传动国家重点实验室,重庆400030

出　　处：《重庆大学学报（自然科学版）》2007年第11期1-4,共4页Journal of Chongqing University

基　　金：国家科技支撑计划资助项目(2006BAF01B01-03);重庆市科委自然科学基金资助项目(CSTC;2006BB3008)

摘　　要：应用自主开发的齿轮三维动力接触有限元分析程序计算了齿轮啮合时变刚度激励、误差激励和啮合冲击激励,用I-DEAS软件建立了同轴双输出行星齿轮减速器有限元模型,并对减速器的固有特性及内部动态激励下的动态响应和结构噪声进行了仿真分析。计算表明不会出现齿轮箱固有频率与传动轴转频或齿轮啮合频率合拍的现象,结构噪声的最大值均出现在齿轮啮合频率附近。The time-variable stiffness excitation, error excitation and impact excitation of the mesh gears are calculated by the finite element （FE） analysis program of 3-D dynamic contact problem. Using the software of I-DEAS, the dynamic FE model of coaxial planetary gear transmission with dual power output is established; the normal characteristic, dynamic response and structure borne noise of the reducer under inner dynamic excitation is simulated. The results suggest that rotational frequencies of drive shafts and mesh frequencies of gears will not consist with normal frequencies of gearbox, the maximum structure borne noise occurs at the mesh frequency of gears.

关 键 词：行星减速器 内部激励 动态响应 结构噪声 

分 类 号：TH113[机械工程—机械设计及理论]