摘要
针对双渐开线齿轮传动动态特性问题,通过建立双渐开线齿轮的有限元模型,综合考虑齿面摩擦与齿轮啮合刚度二因素,对双渐开线齿轮传动系统进行了有限元模态分析,运用响应曲面法研究了齿面摩擦与齿轮啮合刚度对双渐开线齿轮振动变形和模态频率的影响;选取不同模态阶数对双渐开线齿轮传动系统进行了动态特性研究,分析了不同模态阶数下双渐开线齿轮的振动变形与模态频率变化状况。研究结果表明,随着齿面摩擦因数与齿轮啮合刚度的增加,不同模态阶数下双渐开线齿轮传动系统各阶振动变形与模态频率均显著增加,齿面摩擦与齿轮啮合刚度对双渐开线齿轮传动动态特性有一定影响,在对齿轮传动系统进行动态特性研究时,必须对齿面摩擦与齿轮啮合刚度进行充分考虑。
Aiming at the dynamic characteristic problem of double involute gear transmission,the finite element model of the double involute gear was established,two factors of tooth surface friction and meshing stiffness were considered. the finite element modal analysis of double involute gear was carried out,the influence of tooth surface friction and meshing stiffness on gear vibration deformation and modal frequency was analyzed. The dynamic characteristics of the double involute gear transmission were studied by using different modal orders,the change of vibration deformation and modal frequency of different modes were analyzed. The results indicate that the vibration deformation and modal frequency of different modal orders are different,with the increase of friction coefficient and meshing stiffness,the vibration deformation and modal frequency of the double involute gear transmission system are significantly increased. Thus,tooth surface friction and gear meshing stiffness of double involute gear system have significant influence on vibration deformation and modal frequencies under different modes,when the dynamic characteristic of double involute gear transmission system is studied,the tooth surface friction and gear meshing stiffness must be fully considered.
出处
《机电工程》
CAS
2016年第9期1039-1043,1056,共6页
Journal of Mechanical & Electrical Engineering
基金
山东省自然科学基金资助项目(ZR2014EEM003)
关键词
双渐开线齿轮
摩擦
啮合刚度
振动变形
模态频率
double involute gear
friction
meshing stiffness
vibration deformation
modal frequency
