江苏大学汽车与交通工程学院,江苏,镇江,212013
网络首发:2014-09-10,
纸质出版:2014
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尹必峰, 钱晏强, 卢振涛, 等. 缸套表面复合织构润滑性能理论及试验研究[J]. 西安交通大学学报, 2014,48(9):74-80+135.
Theoretical and Experimental Study on Lubrication Performance of Composite Textures on Cylinder Liners[J]. 2014, 48(9): 74-80+135.
尹必峰, 钱晏强, 卢振涛, 等. 缸套表面复合织构润滑性能理论及试验研究[J]. 西安交通大学学报, 2014,48(9):74-80+135. DOI: 10.7652/xjtuxb201409013.
Theoretical and Experimental Study on Lubrication Performance of Composite Textures on Cylinder Liners[J]. 2014, 48(9): 74-80+135. DOI: 10.7652/xjtuxb201409013.
通过建立织构化缸套活塞环混合润滑理论计算模型
基于织构协同润滑机理模拟分析
设计、计算了槽腔及交叉沟槽2种复合织构
同时结合摩擦学性能试验
研究了复合织构对摩擦副润滑性能的影响。结果表明
复合织构润滑性能明显优于单一织构
较槽腔复合织构而言
交叉沟槽织构在改善润滑摩擦性能方面效果更好。复合织构改善润滑的原理是:在上止点处通过协同叠加形成局部高压油膜
从而缩小了混合润滑范围; 在行程中部区域通过协同互补有效地弥补了空化区域的油膜压力衰减
从而延展了有效承载面积。相比单一凹腔织构
槽腔复合织构在各行程中部区域的最小膜厚比可增加34.3%左右
交叉沟槽织构可增加57.6%
槽腔复合织构的循环摩擦功耗可降低8.2%
交叉沟槽织构可降低19.7%。摩擦磨损试验结果显示
相对于未经织构试样
织构试样表面的润滑性能可得到显著改善
尤其是交叉沟槽织构
其摩擦系数最大可降低48.1%。
A mixed lubrication model for textured cylinder liner-piston ring friction pair is constructed. By simulating and analyzing the collaborative lubrication mechanism of textures
two composite texture schemes
dimple-groove and cross groove textures
are designed and calculated. The effects of composite textures on the lubrication performances of friction pair are studied associated with the tribological performance tests. It is found that the lubrication performances of composite textures are obviously better than that of single textures
and cross groove texture outperforms dimple-groove texture. The partial high film pressure is formed by collaborative overlying in TDC area to reduce mixed lubrication range
and the effective bearing area extends by collaborative complementation to increase film pressure in cavitated area at middle of the engine stroke
thus the composite textures greatly facilitate lubrication performance. Compared with the single dimple texture
in the regard of the minimum film thickness ratio in the middle of the engine stroke
the dimple-groove composite texture makes it increase by 34.3% while the cross groove texture makes it increase by 57.6%; as to the friction power loss in an engine cycle
the dimple-groove composite texture makes it decrease by 8.2% while the cross groove texture makes it decrease by 19.7%. The tribological performance tests reveal that the surface lubrication performance of textured samples can be modified more effectively than the sample without textures
especially the cross groove texture enables to reduce friction coefficient maximally by 48.1%.
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翟强,朱永生,闫柯,等.高速角接触轴承油气润滑两相流动特性数值研究.2014,48(6):86-90.[doi:10.7652/xjtuxb 201406015]
张帆,钟海权,孙丽军,等.大型重载滑动轴承润滑特性的理论与试验研究.2014,48(5):15-20.[doi:10.7652/xjtuxb 201405003]
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张辉,张朋波,MENG Hua,等.高速水润滑径向滑动轴承的壁面滑移设计.2013,47(9):72.[doi:10.7652/xjtuxb2013 09012]
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魏衍举,汪文瑞,黄瑾,等.柴油机颗粒物可溶有机组分来源研究.2013,47(5):6-11.[doi:10.7652/xjtuxb201305002]
王楠,孟庆丰,张雪冰,等.多沟槽水润滑橡胶轴承水膜压力的无线测试方法.2013,47(3):1-6.[doi:10.7652/xjtuxb 201303001]
许大涛,冯慧华,袁晨恒,等.自由活塞内燃发电机活塞环摩擦特性研究.2013,47(3):64-68.[doi:10.7652/xjtuxb2013 03012]
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