表面粗糙度對拋物線滑動軸承性能影響之研究

A Study of Surface Roughness Effects on the Performance Characteristics of Parabolic-Film Slider Bearings

10.6989/JN.201112.0121

梁龍驥(Long-Jin Liang)；周祖亮(Tsu-Liang Chou)；林昭仁(Jaw-Ren Lin)

滑動軸承 ； 表面粗糙度 ； 拋物線形 ； slider bearings ； surface roughness effects ； parabolic film

南亞學報

31期（2011 / 12 / 01）

121 - 131

繁體中文

經機械加工過程製造的零件表面難免都會出現粗糙之加工紋路，是故表面粗糙度對於軸承性能影響之分析與了解，至為重要。本文採用使用克利斯登森氏粗糙表面推測學模式加入粗糙度因素，應用在具有粗糙表面一維拋物線形滑動軸承方面之研究。根據所得結果顯示，縱向型之表面粗糙紋路會降低軸承之潤滑性能。然而，橫向型之表面粗糙紋路卻可以改善軸承之靜態負載容量、動態剛性係數與動態阻尼係數。

Owing to the manufacturing process, the surfaces of machine elements may be roughened. Therefore, analyses of surface roughness effects on the bearing performances show great importance. Based upon the stochastic model of rough surfaces of Christensen, a study of surface roughness effects on the performance characteristics of parabolic-film slider bearings is presented in this paper. According the results, the longitudinal roughness effects decrease the lubrication performances of bearings. However, the roughness effects of transverse patterns provide an improvement in the steady load capacity, the dynamic stiffness coefficient and the dynamic damping coefficient of the parabolic-film sliders