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国外文献 > 1.轴承 > 3. 材料与制造 > 制造工艺

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标 题： CFD Analysis on the Lubrication Behaviours of Journal Bearing with Dimples
带凹坑的圆柱滚子轴承润滑性能的CFD分析
作 者： Hu Yong
Raj Balendra
关键词： CFD simulation  [CFD模拟]
Dimple  [ 凹凸]
Surface texture  [ 表面纹理]
Frication reduction  [ 减少摩擦]
Journal bearing  [ 圆柱滚子轴承]
出版年： 2009
会议名： 2009 International Conference on Mechatronics and Automation (ICMA 2009)
2009年机电一体化与自动化国际会议（ICMA 2009）
届 次：
摘 要： CFD simulation on the lubrication behaviours of journal bearing with dimples was presented. Different from the previous works, the textured surface with dimple moves. The distributions of pressure, friction force and friction coefficient on the sliding surface were obtained. The comparison was made between textured surface sliding and smooth surface sliding. The influence of different dimple depth, dimple density and dimple profile on lubrication performance is discussed. By analysis, the following conclusions can be draw. The friction force and friction coefficient with textured surface sliding are smaller than that with smooth surface sliding. The introduce of dimple is benefit to lubrication performance in term of friction force compare to the smooth plate sliding, even there is some loss of load capacity. The increase of dimple depth and density will result in the decrease of friction force, which be attributed to more thick film lubrication. The profile of dimple has little effect on the friction force and friction coefficient. Some result is consistent with previous experimental facts.

本文对带凹坑的圆柱滚子轴承润滑行为进行了CFD模拟。与以往研究不同，该研究采用具有凹坑的纹理表面进行分析。获得了滑动表面上的压力、摩擦力和摩擦系数的分布情况，并对纹理表面滑动与光滑表面滑动进行了对比。同时探讨了不同凹坑深度、凹坑密度及凹坑形状对润滑性能的影响。通过分析得出以下结论：与光滑表面滑动相比，纹理表面滑动时的摩擦力和摩擦系数均较小。引入凹坑在降低摩擦力方面对润滑性能有积极影响，尽管会带来一定的载荷能力下降。凹坑深度和密度的增加会导致摩擦力减小，这归因于更厚的油膜润滑效应。而凹坑的形状对摩擦力和摩擦系数影响较小。部分结果与以往实验数据一致。
中文内容为网络AI翻译，专业术语未必准确，仅供参考。

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