| 弹性流体动力润滑状态下线接触滚动副表面层的应力及接触疲劳寿命 |
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| 引用本文： | 丁晓红.弹性流体动力润滑状态下线接触滚动副表面层的应力及接触疲劳寿命[J].苏州大学学报(医学版),1999(1). |
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| 作者姓名： | 丁晓红 |
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| 作者单位： | 苏州大学工学院!苏州215006 |
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| 摘 要： | 线接触滚动副早期失效主要是由于接触表面的润滑不良．使得表面粗糙度波峰相 互接触而产生磨损及表面破坏．但在润滑良好的情况下，由于接触表面压力分布的变化．在某些 工况参数下．接触副的疲劳寿命出现降低现象．本文通过数值方法，对ｎ种典型工况参数下接触 副表面层的应力分布进行计算，分析了接触副的疲劳寿命，提出了弹性流体动力润滑应用中合理 选择工况参数的必要性．
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| 关 键 词： | 接触疲劳寿命 弹性流体动力润滑状态 工况参数 |
THE ROLLING LINE CONTACT SUBSURFACE STRESS AND THE FATIGUE LIFE IN EHL STATE |
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| Diang Xiaohong.THE ROLLING LINE CONTACT SUBSURFACE STRESS AND THE FATIGUE LIFE IN EHL STATE[J].Journal of Suzhou University(Natural Science),1999(1). |
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| Authors: | Diang Xiaohong |
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| Abstract: | The early failure of rolling ling contact pairs is due to insufficient lubrication, be- cause it result in direct contact between metallic surfaces. But because of the change of the surface pressure distribution in Flastohydrodynamic Lubrication(EHL), the fatigue life of such pairs is re- duced with some condition parameters. The confact stress distribution in subsurface and the fatigue life of rolling line contact pairs in EHL are studied in this paper. The results are shown that the rea- sonable EHL parameters must be selected in the EHL application in order to improve the fatigue life of such pairs. |
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| Keywords: | the contact fatigue life EHL condition parameters |
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