摘要
根据渐开线和齿根曲线的参数方程建立齿轮的有限元模型,首先根据接触分析结果得到单齿啮合区和双齿啮合区。计算单齿啮合区极限位置啮合时的齿根弯曲应力,并作为周期最大应力与经典理论方法所得结果进行对比。理论方法的计算结果在修正前与有限元计算结果相差甚远,修正后略大于有限元计算结果,分析了两种方法所得结果产生差异的原因。
According to the parameter equations of involute and root curve, the finite element model of a gear is built. First, single and double gear meshing areas are obtained from contact analysis result. Bending stress in the root of gear is calculated while single gear meshing at limit position. The bending stress result is compared with the result obtained by classic theory method as a cycle maximum stress. The calculation result of classic method before correcting is far from finite element result, and after correcting, is slightly higher than finite element result. The reasons of difference results produced by the two methods are analyzed in this naner.
出处
《机械工程与自动化》
2013年第2期50-51,56,共3页
Mechanical Engineering & Automation
关键词
渐开线圆柱齿轮
齿根弯曲应力
有限元方法
involute cylindrical gear
bending stress in the root of gear； finite element method
