| HUA Xi-jun,XU Hong-shan,CHEN Ya-lin,XIE Xuan,XU Shang,WANG Cheng.Numerical Analysis on Lubrication Performance of Laser Micro-textured Roller Bearings[J],47(3):36-41 |
| Numerical Analysis on Lubrication Performance of Laser Micro-textured Roller Bearings |
| Received:September 29, 2017 Revised:March 20, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.16490/j.cnki.issn.1001-3660.2018.03.006 |
| KeyWord:cylindrical roller bearing textured surface multi-grid method average dimensionless pressure of oil film |
| Author | Institution |
| HUA Xi-jun |
School of Mechanical Engineering, Jiangsu University, Zhenjiang , China |
| XU Hong-shan |
School of Mechanical Engineering, Jiangsu University, Zhenjiang , China |
| CHEN Ya-lin |
Jiangsu CCTY Bearing Co., Ltd, Zhenjiang , China |
| XIE Xuan |
School of Mechanical Engineering, Jiangsu University, Zhenjiang , China |
| XU Shang |
School of Mechanical Engineering, Jiangsu University, Zhenjiang , China |
| WANG Cheng |
School of Mechanical Engineering, Jiangsu University, Zhenjiang , China |
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| Abstract: |
| The work aims to study on lubrication performance of textured cylindrical roller bearing friction pair, and explore law of influence of duty parameters (load, speed) and micro-textured geometry geometrical morphology parameters (area density) on average di-mensionless pressure of oil film. Based on elastohydrodynamic lubrication mechanism, a theoretical model was established by applying finite line contact elastohydrodynamic lubrication theory. Finite difference method was used to discretize Reynolds equation and multi-grid method was applied to the numerical analysis. Provided with Sp=0.095 and hp=6 μm, the average dimensionless pressure of oil film increased as the load increased from 100 N to 500 N; provided with Sp=0.095 and hp=6 μm, the average dimensionless pressure of oil film increased as the speed increased from 100 r/min to 500 r/min; provided with W=200 N and n=200 r/min, the average dimensionless pressure of oil film increased as the micro-texture area density increased from 0.05 to 0.15; as the micro-texture area density increased from 0.15 to 0.25, the average dimensionless pressure of oil film decreased. The average dimensionless pressure of oil film on micro-textured cylindrical roller bearing increases with increase of load and speed, and increases first and then decreases with the increase of micro-texture area density. |
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