| 基于真实粗糙齿面的齿轮传动接触应力分析 |
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| 引用本文： | 亓秀梅,高创宽.基于真实粗糙齿面的齿轮传动接触应力分析[J].润滑与密封,2011(9). |
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| 作者姓名： | 亓秀梅 高创宽 |
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| 作者单位： | 太原理工大学机械工程学院;杭州万向职业技术学院工程系; |
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| 基金项目： | 国家自然科学基金资助项目(50975189) |
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| 摘 要： | 现行齿轮传动接触疲劳强度的设计基础是仅适用于一对光滑表面之间干接触的赫兹理论,这显然与齿轮传动实际状况有一定差异。为获得齿轮传动实际状况的齿面压力分布、油膜厚度及轮齿接触区次表面的应力分布,基于实测所得的表面粗糙度数据,采用有限元法对重载齿轮传动进行混合弹流润滑数值分析。结果表明:粗糙齿面接触时的齿面压力分布及轮齿接触区次表面应力分布均明显相异于赫兹分布或基于光滑齿面全膜弹流润滑计算所得的相应分布;齿面粗糙峰谷的存在会使齿面接触应力比赫兹接触应力增大25%左右,且齿面平均油膜厚度的最小值及接触应力的最大值均发生在啮入点而非节点。因此,现行的以赫兹应力为基础、以节点参数为依据进行齿轮传动接触强度设计的做法有失科学性和安全性。
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| 关 键 词： | 齿轮混合润滑 真实粗糙表面 数值分析 齿轮传动 |
Analysis of Gearing Contact Fatigue Stress Based on Actual Surface Roughness Profiles |
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| Qi Xiumei Gao Chuangkuan.Analysis of Gearing Contact Fatigue Stress Based on Actual Surface Roughness Profiles[J].Lubrication Engineering,2011(9). |
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| Authors: | Qi Xiumei Gao Chuangkuan |
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| Affiliation: | Qi Xiumei1 Gao Chuangkuan2(1.College of Mechanical Engineering of Taiyuan University of Technology,Taiyuan Shanxi 030024,China,2.Department of Engineering of Hangzhou Wanxiang Polytecnic,Hangzhou Zhejiang 310023,China) |
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| Abstract: | The contact fatigue strength design of an involute cylinder gear drive is based on the Hertzian contact theory under the assumptions that surfaces are ideally smooth with no lubrication,which is inconsistent with the reality of industrial gear drives.To get the pressure distribution,film thickness and subsurface stress distribution and fit in with the reality of industrial gear drives,the numerical analyses of heavy-duty gearing mixed lubrication were completed using finite element method based on the rough... |
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| Keywords: | gearing mixed lubrication actual surface roughness profiles numerical analysis gear drive |
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