Lubrication film generation in slider-on-disc contact under limited lubricant supply

Lubrication film generation in slider-on-disc contact under limited lubricant supply
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在润滑剂供应有限的情况下,滑块与圆盘接触处形成润滑膜

DOI:
10.1016/j.triboint.2018.02.007
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发表时间:
2018-09
影响因子:
6.2
通讯作者:
Guo L.
Guo L.
中科院分区:
工程技术1区
文献类型:
--
作者:
Guo F.;Zang S.Y.;Li C.;Wong P.L.;Guo L.

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利用光学滑动轴承试验台,对有限润滑剂供应(LLS)条件下的润滑膜特性进行了实验研究。在LLS下,轴承接触的入口处出现了受毛细效应影响的饥饿区。在增大速度下,膜厚先增加后基本保持不变。定义了相对膜厚来评估承载能力的降低,随着饥饿的发展,承载能力有增加的趋势。结果表明,润滑油粘度和两次回流之间的回流时间对润滑油的补给和油膜结构有显著影响。数值计算表明,只有当饥荒变得严重时,入口饥饿区才能承受一定的载荷。
Experimental studies were carried out for the characterization of lubrication films under limited lubricant supply (LLS) using an optical slider-bearing test rig. A starvation area which was influenced by capillary effect appeared at the inlet of the bearing contact under LLS. At increasing speed, film thickness increased initially and then remained nearly unchanged. Relative film thickness was defined for the assessment of the reduction of load-carrying capacity, which tended to increase with starvation development. Results show that the lubricant viscosity and the reflow time between two slide-overs markedly affect the lubricant replenishment and film construction. Numerical calculations show that the inlet starvation area may bear some load only when starvation becomes severe.
DOI: 10.1002/ls.3010120102
发表时间: 1999-11
影响因子: 1.9
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