| 双压力角非对称齿廓齿轮齿根弯曲应力的有限元分析 |
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| 引用本文： | 肖望强,李威,李梅.双压力角非对称齿廓齿轮齿根弯曲应力的有限元分析[J].北京科技大学学报,2006,28(6):570-575. |
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| 作者姓名： | 肖望强 李威 李梅 |
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| 作者单位： | 北京科技大学机械工程学院,北京,100083 |
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| 摘 要： | 推导出双压力角非对称渐开线齿轮系统全齿廓方程,以及在单、双齿啮合上、下界点处坐标和载荷角的计算公式,编制了相应的参数化程序.对实例的有限元分析表明非对称渐开线齿轮的齿根弯曲强度比对称齿轮有较大提高.计算结果揭示了由于时变啮合刚度的影响齿根弯曲应力在一个啮合周期的变化规律.
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| 关 键 词： | 非对称齿轮 齿廓 齿根弯曲应力 时变啮合刚度 有限元分析 双压力角 非对称 齿轮系统 齿根 弯曲应力 有限元分析 bending stress root tooth element analysis Finite angles pressure double 变化规律 啮合周期 影响 时变啮合刚度 结果 计算公式 |
| 收稿时间： | 2005-07-11 |
| 修稿时间： | 2005-09-14 |
Finite element analysis of the tooth root bending stress. of an unsymmetric gear with double pressure angles |
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| XIAO Wangqiang,LI Wei,LI Mei.Finite element analysis of the tooth root bending stress. of an unsymmetric gear with double pressure angles[J].Journal of University of Science and Technology Beijing,2006,28(6):570-575. |
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| Authors: | XIAO Wangqiang LI Wei LI Mei |
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| Institution: | Mechanical Engineering School, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | This paper deduced the involute gear total tooth profile equations of unsymmetric teeth with double pressure angles, proposed the calculation formulas of coordinates and load angle at the upper and lower points of single and double teeth mesh areas, and programmed the relevant parametric programs. Compared with a standard involute gear, the unsymmetric involute gear could efficiently improve the tooth root bending strength by finite element analysis. Considering the time-variant mesh stiffness, the calculated results demonstrated the change of tooth root bending stress in one engagement period. |
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| Keywords: | unsymmetric gear gear profile tooth root bending stress time-variant mesh stiffness finite element analysis |
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