Thin Film Lubrication of Point Contact in Different Slip Ratios

• Main Authors: Chung-Hsien Wu, 吳崇献
• Other Authors: 蘇侃
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/13871033789791407035

碩士 === 國立臺灣大學 === 機械工程學研究所 === 96 === In order to measure the frictional torque under elastohydrodynamic lubrication condition, this study is to modify a tribological tester which we already have. Then using this tester, the effect of the sum of surface speed and slip ratio on the friction coefficient and load carrying capacity of the oil films generated between point contact can be evaluated by the wear conditions of the tested specimens under elastohydrodynamic conditions. The experimental results show that the increase in sliding-rolling ratio and the sum of surface speed not only caused the friction coefficient between specimens to decrease, but also caused the specimens to be worn more easily. This result means that the load carrying capacity of the oil film decreases as the sliding-rolling ratio and the sum of surface speed between two disc specimens in elliptic contact increases.