کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7002131 | 1454786 | 2018 | 44 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Regulation of lubricant supply by wettability gradient in rolling EHL contacts
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
شیمی کلوئیدی و سطحی
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چکیده انگلیسی
Starvation often occurs in elastohydrodynamic lubricated (EHL) contacts due to limited lubricant replenishment at high speeds or restricted fresh oil charging. This work presents several conceptual studies for regulating lubricant replenishment/supply by means of wettability gradient, which is generated by an oleophilic track bounded by two oleophobic zones on solid surface. It was demonstrated that when the EHL contact was within the central oleophilic track, the wettability gradient on the two sides could drive the lubricant to form a stable oil reservoir leading to thick EHL films. Nevertheless, if there was a single step wettability gradient, the lubricant could be driven away easily from the lubrication track, leading to starvation despite a large amount of lubricant provided.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 120, April 2018, Pages 565-574
Journal: Tribology International - Volume 120, April 2018, Pages 565-574
نویسندگان
X.M. Li, F. Guo, P.L. Wong, Y. Zhao,