| 斜齿轮非稳态等温弹流润滑数值分析 |
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| 引用本文： | 黄立,胡元中,王文中. 斜齿轮非稳态等温弹流润滑数值分析[J]. 润滑与密封, 2009, 34(7). DOI: 10.3969/j.issn.0254-0150.2009.07.006 |
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| 作者姓名： | 黄立 胡元中 王文中 |
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| 作者单位： | 1. 清华大学摩擦学国家重点实验室,北京,100084
2. 北京理工大学机械与车辆学院,北京,100081 |
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| 摘 要： | 建立了渐开线斜齿圆柱齿轮弹流润滑计算的数学模型,将渐开线斜齿圆柱齿轮的啮合等效为长椭圆接触的弹流润滑问题,针对实际高速列车用齿轮在平稳运行和启动工况下,应用统一Reynolds方程方法求得了轮齿在不同啮合瞬时的非稳态弹流润滑完全数值解.结果表明:随啮合位置不同,啮合线上各点的压力、膜厚分布均有很大变化;油膜形状受瞬态挤压效应影响,与稳态解有明显不同;主动轮齿顶/被动轮根部位润滑条件相对较差.
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| 关 键 词： | 斜齿轮 非稳态弹流润滑 挤压效应 长椭圆接触 |
Numerical Analysis of Transient Elastohydrodynamic Lubrication of Helical Gears |
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| Huang Li,Hu Yuanzhong,Wang Wenzhong. Numerical Analysis of Transient Elastohydrodynamic Lubrication of Helical Gears[J]. Lubrication Engineering, 2009, 34(7). DOI: 10.3969/j.issn.0254-0150.2009.07.006 |
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| Authors: | Huang Li Hu Yuanzhong Wang Wenzhong |
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| Affiliation: | 1.The State Key Laboratory of Tribology;Tsinghua University;Beijing 100084;China;2.School of Mechanical & Vehicular Engineering;Beijing Institute of Technology;Beijing 100081;China |
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| Abstract: | The elastohydrodynamic lubrication (EHL) model of the helical gears was developed in which the mesh of a pair of helical gears is simplified into a long elliptical-contacts lubrication problem.Based on the unified Reynolds equation approach,the numerical solutions of transient lubrication problem of meshing process were obtained for the steady and start-up conditions.The results show that the distributions of pressure and film thickness vary greatly at different meshing positions.The transient squeezing eff... |
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| Keywords: | helical gears transient elasohydrodynamic lubrication squeezing effect long elliptical contacts |
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