| Summary: | 碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 102 === This paper utilizes optical interference principle to measure oil film thickness between two surfaces to analyze lubrication performance. It sets different slider angles, tangential velocities, load, dynamic load and surface topography parameters to discuss influence of different experimental parameters on oil film thickness and friction, and uses hydrodynamic lubrication principle to verify accuracy, as well as expects to utilize surface engineering technology to conduct component surface pattern design, so as to reduce frictional resistance and improve resistance of dynamic load.
This paper innovatively designs and creates a surface contact lubrication performance analysis platform with function of friction and dynamic load and has verified the same change trend with Reynolds equation. Transverse grinding helps to improve oil film thickness. The experiments of surface details in different figures, fraction of area coverage and depth show that circular groove surface pattern has bigger oil film thickness that those of others. It has bigger oil film thickness than smooth test parts in different speeds and dip angles when the load is higher. It can avoid hole corrosion and has lower frictional resistance, showing that it can effectively improve load capacity of the oil film in the same operating condition, to reduce power demand and temperature rise as well as surface collision effect. This paper also designs a set of dynamic load devices to discuss that dynamic load has lower oil film thickness than that of static load in the same load and speed; while in comparison of oil film thickness at high circulating load, the oil film thickness of the second circulating load is higher than that of the first circulating load.
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