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標題: 具紋理之滑動面潤滑摩擦模型建構與分析
Construction and Analysis of Lubrication and Friction Model for Sliding Surface with Textures
作者: 賴昭如
Chao-Ju Lai
關鍵字: 表面紋理;潤滑摩擦模型;油膜厚度;滑動攻角;surface texture;lubrication and friction model;thickness of lubricant film;sliding angle of attack
引用: [1] 佐ぼ木信也,“表面ЪヱЗХцэ⑦ヲズプペЬьユп①Жみ特性ソ向上”,表面技術,No. 12, pp. 568-572, 2014. [2] 蘇侃,混合潤滑模型之建立,國科會研究報告,2001。 [3] U. Pettersson and S. Jacobson, 'Textured Surfaces for Improved Lubrication at High Pressure and Low Sliding Speed of Roller/Piston in Hydraulic Motors,' Tribology International, No. 40, pp. 355-359, 2007. [4] M. Nakano, A. Korenaga, K. Miyake, T. Murakami, Y. Ando, H. Usami and S. Sasaki,“Applying Micro-Texture to Cast Iron Surfaces to Reduce the Friction Coefficient Under Lubricated Conditions,” Tribology Letter, pp. 131–137, 2007. [5] H. L. Costa and I. M. Hutchings, “Hydrodynamic Lubrication of Textured Steel Surfaces under Reciprocating Sliding Conditions,”Tribology International, No. 40, pp. 1227-1238, 2007. [6] Y. Wan and D.-S. Xiong, “The Effect of Laser Surface Texturing on Frictional Performance of Face Seal,”Journal of Materials Processing Technology, No. 197, pp. 96–100, 2008. [7] X. Wang, W. Liu, F. Zhou and D. Zhu,“Preliminary Investigation of the Effect of Dimple Size on Friction in Line Contacts,”Tribology International, pp. 1118–1123, 2009. [8] 陳正達,滑動面表面紋理之摩擦特性探討,國立中興大學機械工程系碩士論文,2011。 [9] A. Golchin, G. F. Simmons and S. B. Glavatskih, Break-Away Friction of PTFE Materials in Lubricated Conditions,”Tribology International, No. 48, pp. 54–62, 2012. [10] 林明賢,具混合型紋理滑動面之進給系統摩擦特性探討,國立興大學機械工程系碩士論文,2013。 [11] 彭昭琳,創新型無鏟花工具機硬軌之研發,國立興大學機械工程系碩士論文,2014。 [12] 童冠敏,加工紋理應用於具機硬軌之探討,國立興大學機械工程系碩士論文,2015。 [13] D. B. Hamilton, J. A. Walowit and C. M. Allen,“A Theory of Lubrication by Micro-Irregularities,”Journal of Basic Engineering, No. 41, pp. 177-185, 1966. [14] W. Tang, Y. Zhou, H. Zhu and H. Yang,“The Effect of Surface Texturing on Reducing the Friction and Wear of Steel under Lubricated Sliding Contact,”Applied Surface Science, pp. 199–204, 2013. [15] K. Gertzos, P. Nikolakopoulos and C. Papadopoul,“CFD Analysis of Journal Bearing Hydrodynamic Lubrication by Bingham Lubricant,” Tribology International, pp. 1190-1204, 2008. [16] 王信誌與蔡志成,“具微型油溝滑塊之滑動摩擦分析”,第十六屆全國機構與機器設計學術研討會論文集,台灣新竹,2013。 [17] Y. Zhang, X. Zhang and G. Matsoukasb, “Numerical Study of Surface Texturing for Improving Tribological Properties of Ultra-High Molecular Weight Polyethylene,” Biosurface and Biotribology, pp. 270-277, 2015. [18] A. T. Cross, F. Sadeghi, L. Cao, R. Rateick JR and S. Rowan,“Flow Visualization in a Pocketed Thrust Washer,”Tribology Transactions, pp. 571-581, 2012. [19] 黃品綸,應用加工紋理之滑塊摩擦特性分析,國立興大學機械工程系碩士論文,2016。 [20] Bruker Nano Surfaces,“Generating a Stribeck Curve in a Reciprocating Test,” [21] A. S. Akhmatov,“Molecular Physics of Boundary Friction,”Israel Programme for scientific Translation, pp. 310-311, 1966. [22] “Reynolds Number,” Wikipedia. B7%E8%AF%BA%E6%95%B0. [23] M. Bryant, Hydrodynamic Lubrication, UT Mechanical Engineering, 2005. [24] D. Gropper, L. Wang and T. J. Harvey, “Hydrodynamic Lubrication of Textured Surfaces: A Review of Modeling Techniques and Key Findings,” Tribology International, No. 94, pp. 509-529, 2016.

The function of the guideway is to carry the load and guide the direction of motion. The hard rail, a surface-to-surface contact guideway, is particularly employed in the situation of motion at high loading. In such a guideway, lubrication between contacted surfaces is important. Although literatures showed texture patterns, serving as lubricant reservoir, are design and fabricated based on empirical methods, it is necessary to develop a theoretical model for analyzing lubrication and friction characteristics of sliding surface with textures.
In this paper, CAE software is employed to construct the lubrication and friction model for sliding surface with simple texture. First, the half-Sommerfeld boundary condition is used to simulate the cavitation effect. The effective thickness of lubricant and the corresponding friction are then computed based on the load and the bearing capacity of the oil pocket. Experiments to measure the friction forces are then conducted for comparisons. It showed that there exists an offset between theoretical results and experimental data, though both results showed the same tendency. Considering the lubricant induces an angle of attack during sliding, the friction model with an attack angle is constructed for exploring the loading capacity, which means the load is supported by both oil pocket and sliding surface. Results showed that the hydrodynamic pressure caused by the angle of attack at 1.4×10^-5 rad under 4.141 KPa surface pressure and at 8×10^-6 rad under 9.886 KPa surface pressure are close to experimental results. This research work provided a method to solve the problem in analyzing the loading and friction of sliding surfaces with textures due to tiny aspect ratio of lubricant film. The friction model for sliding surface with textures is constructed and verified its reasonability through experiments.
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