摘要
为研究齿轮在啮合过程中的应力分布,在ANSYS Workbench的Transient structural环境下,设置合理的载荷和约束,使用刚-柔混合模型,模拟了齿轮传动的啮合过程,得出了微型齿轮副传动时Von Mises应力的分布和大小和啮合过程中齿面接触的变化周期。研究表明,最大Von Mises应力出现在主动轮齿根,主要表现为压应力,在单齿啮合周期中压应力占66.7%的时间;在啮合过程中,当上一齿面将要退出啮合而形成单齿啮合区时,当前齿面接触应力将会急剧增加,达到最大值;在齿轮连续啮合过程中,伴随有多次冲击。
In order to investigate stress distribution in the meshing process of gear pair, a rigid - flexible gear model is established, appropriate load and constraint are setup within the ANSYS Workbench environment to simulate the meshing of gear pair by using Transient structural analysis. The Von Mises stress distribution and tooth contact cy- cle of gear pair in meshing process are obtained. The results show that the maximum Von Mises stress concentrates in the tooth root, and compressive stress is the main presentation in maximum Von Mises stress and the percentage of compressive stress time is 66.7 % in a single tooth meshing cycle. Furthermore, in the meshing process, when a tooth surface will be quit the meshing zone to develop single tooth meshing, the tooth surface contact stress will increase sharply until the maximum value is reached. In the process of gear pair meshing, there are with repeated impact
出处
《机械传动》
CSCD
北大核心
2012年第12期35-38,55,共5页
Journal of Mechanical Transmission
关键词
齿轮副
齿轮啮合
齿面接触
等效应力
Gear pair
Gear meshing
Tooth surface contact
Equivalent stress
