EFFECTS OF ASPERITIES IN ELASTOHYDRODYNAMIC LUBRICATION
EFFECTS OF ASPERITIES IN ELASTOHYDRODYNAMIC LUBRICATION
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DOI：
10.1115/1.3251550
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发表时间：
1980-01-01
期刊：
影响因子：
--
通讯作者：
CAMERON, A
中科院分区：
文献类型：
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作者：
KANETA, M;CAMERON, A
用光学干涉法研究了点接触润滑点接触下的粗糙表面。将三维“粗糙”的铬溅射到钢球上，钢球在滚动和滑动两种情况下与光滑的玻璃板滚动。将实验结果与已发表的各种理论进行了比较。滑动过程中观察到的油膜厚度与纯轧制过程中观察到的油膜厚度不同，与理论值基本相同。当中心膜厚/半粗糙度高度比(λ比)达到临界值时，膜厚崩塌。
Optical interferometry was used to study rough surfaces under lubricated point contact. Three dimensional “asperities” of chromium were sputtered onto a steel ball which was run against a smooth glass plate under both rolling and sliding. The experimental results were compared with the various published theories. The film thicknesses found in sliding are different from those observed in pure rolling, which are nearly equal to the theoretical values. Film thickness collapse occurred when the central film thickness/half asperity height ratio (λ ratio) reached a critical value.