考虑变位系数的直齿轮啮合特性分析  

Meshing Characteristics Analysis of Spur Gear Pair Considering Modification Coefficient

作　　者：张义民[1] 杨健[1] 胡鹏[1] 王全彬[1] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110819

出　　处：《东北大学学报（自然科学版）》2013年第9期1287-1291,共5页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(51135003;U1234208);长江学者和创新团队发展计划项目(IRT0816);"高档数控机床与基础制造装备"科技重大专项(2013ZX04011011)

摘　　要：使用有限元方法研究直齿轮传动的啮合特性.基于APDL建立变位直齿轮副参数化有限元模型,采用显式动力学分析软件LS-DYNA对齿轮副啮合过程进行数值仿真,得到齿轮啮合产生的动态接触力以及动态传递误差,研究了齿轮变位系数对于齿轮啮合特性的影响,将动态传递误差与静态传递误差进行对比,分析了二者产生差异的原因.研究表明不同变位系数下,啮合频率都是主要的频率成分,其他频率成分的幅值受到变位系数的影响,接近固有频率的倍频幅值较大.静态传递误差与动态传递误差在时域和频域上都存在较大区别.Meshing characteristics of spur gear pair were researched using finite element method.Parametric finite element model of modified spur gear pair w as built on the on the basis of APDL.Numerical simulation of gear meshing w as performed via application of explicit dynamic softw are LS-DYNA.Dynamic meshing characteristics caused by gear meshing such as dynamic contact force and dynamic transmission error（DTE） w ere obtained,and the effect of modification coefficient on dynamic meshing characteristics w as studied.Static transmission error（STE） w as compared w ith the aforementioned DTE.Finally the reasons for the difference betw een the DTE and STE w ere discussed.The results show n that under different modification coefficients,the meshing frequency is alw ays the main frequency component.Other frequency components are affected by modification coefficient,and amplitude of the frequency component close to natural frequency is relatively larger.The STE is much different from the DTE on both time and frequency domains.

关 键 词：变位系数 直齿轮 传递误差 啮合特性 ANSYS LS-DYNA 

分 类 号：TH132[机械工程—机械制造及自动化]