| 表面规则微凹腔半径对活塞环润滑性能的影响 |
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| 引用本文： | 符永宏,季伟,张华伟,纪敬虎,华希俊.表面规则微凹腔半径对活塞环润滑性能的影响[J].江苏大学学报(自然科学版),2010,31(6). |
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| 作者姓名： | 符永宏 季伟 张华伟 纪敬虎 华希俊 |
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| 作者单位： | 江苏大学机械工程学院; |
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| 基金项目： | 江苏省高技术重大项目，国家自然科国家自然科学基金资助项目，中国博士后基金资助项目 |
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| 摘 要： | 以激光微造型活塞环表面为研究对象,建立表面具有规则微观抛物面凹腔结构的数学模型.利用变异多重网格法对该模型进行数值求解,得到活塞环-缸套间最小油膜厚度和无量纲平均摩擦力变化曲线,分析微凹腔半径对活塞环润滑性能的影响.分析结果表明:最小油膜厚度随微凹腔半径增大而明显变厚,无量纲平均摩擦力随微凹腔半径增大而减小,但在进排气冲程中,无量纲平均摩擦力的减小不明显;在压缩做功冲程中,无量纲平均摩擦力的减小显著,当凹腔半径rp从20 μm变化到70 μm时,无量纲平均摩擦力最多减小了68.7%.
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| 关 键 词： | 活塞环 激光微造型 微凹腔半径 变异多重网格法 润滑性能 |
Influence of surface regular micro-pore radius on lubrication performance of piston ring |
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| Fu Yonghong,Ji Wei,Zhang Huawei,Ji Jinghu,Hua Xijun.Influence of surface regular micro-pore radius on lubrication performance of piston ring[J].Journal of Jiangsu University:Natural Science Edition,2010,31(6). |
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| Authors: | Fu Yonghong Ji Wei Zhang Huawei Ji Jinghu Hua Xijun |
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| Institution: | Fu Yonghong,Ji Wei,Zhang Huawei,Ji Jinghu,Hua Xijun(School of Mechanical Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China) |
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| Abstract: | To study the surface of laser micro-texturing piston ring,a mathematical model was established for the piston ring with regular microstructure in the parabolic form.Through the numerical solution of the model by modified multi-grid method,the minimum film thickness and the graph of dimensionless average friction force between piston ring and cylinder liner were obtained,and the influence laws of micro-pore radius on the lubrication performance of piston ring were also analyzed.The results show that there is... |
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| Keywords: | piston ring laser micro-texturing micro-pore radius modified multi-grid method lubrication performance |
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