新型少齿差减速器动态特性分析及实验研究  

Dynamic characteristic analysis and experimental study on a new type reducer with small tooth number difference

作　　者：刘文[1] 林腾蛟[1] 李润方[1] 王家序[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：《振动与冲击》2009年第7期22-27,共6页Journal of Vibration and Shock

基　　金：国家自然科学基金重点项目(编号:50735008);重庆市重大科技专项(编号:CSTC;2007AB3030)

摘　　要：针对某新型少齿差行星减速器,进行了不同啮合位置时的多体接触有限元分析,求得轮齿时变啮合刚度,采用动力接触有限元法计算齿轮啮合冲击激励,得出包括时变刚度激励、误差激励、啮合冲击激励的齿轮啮合内部动态激励。建立减速器的有限元动力分析模型,在综合考虑内部激励和外部激励的情况下计算了减速器的时域和频域响应及加速度级1/3倍频程结构噪声。利用振动测试分析仪对新型少齿差内啮合减速器进行测试分析,并与有限元计算结果进行对比,二者较为吻合。With finite element method of multi-body contact problems,the time-variant stiffness at different rota-tional position of a new type gear reducer with small tooth number difference was obtained,and the dynamic contact finite element method was used to analyze meshing impact excitations,then the internal excitations including excitations of time-variant stiffness,gear error and meshing impact were calculated.A dynamic finite element model of a gear reducer was es-tablished and used to analyze its dynamic response in time-domain and frequency-domain as well as one-third octave accel-eration grade for its structural borne noise of the gear reducer under dynamic excitation.At last,an experiment of vibration analysis of the reducer was conducted using an analysis instrument of vibration test.The computational results obtained were in a good agreement with the test data.

关 键 词：少齿差行星传动 多体接触分析 动态激励 结构噪声 

分 类 号：TH132.4[机械工程—机械制造及自动化]