点接触弹流润滑条件下表面弹性变形研究
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摘要
为研究弹流润滑条件下点接触表面变形及其对表面性能的影响,采用激光微织构法制备了一组不同形貌参数的滚动轴承滚道表面试件,基于表面频谱分析和弹流润滑快速算法(幅值缩减法)分析了试件在不同工况参数下的弹性变形。使用ISO 25178三维形貌参数体系对变形前后表面进行表征,研究了点接触弹流润滑状态下表面形貌的弹性变形与载荷、转速的关系。研究结果表明,弹流接触使表面形貌发生显著的弹性变形,载荷、转速等工况参数对变形量影响较大,表面弹性变形使得形貌参数发生显著变化。
In order to investigate the surface deformations and the effects on surface properties under EHL point-contacting mode, a series of raceway surface samples for rolling bearings with different surface topographies were fabricated by laser texture processes and the elastic deformation values under different operational conditions were calculated based on spectrum analysis and fast EHL method called Amplitue Reduction. Three-dimensional topography parameters from ISO25178 were used to characterize surfaces before and after elastic deformations. The relationships among elastic deformations under EHL point-contacting mode and loading force/rotational speed was studied. The results show that obvious elastic deformations occur during EHL contacting processes and the operational parameters have significant influences on deformation values. Surface elastic deformations will obviously change surface topographies.
In order to investigate the surface deformations and the effects on surface properties under EHL point-contacting mode, a series of raceway surface samples for rolling bearings with different surface topographies were fabricated by laser texture processes and the elastic deformation values under different operational conditions were calculated based on spectrum analysis and fast EHL method called Amplitue Reduction. Three-dimensional topography parameters from ISO25178 were used to characterize surfaces before and after elastic deformations. The relationships among elastic deformations under EHL point-contacting mode and loading force/rotational speed was studied. The results show that obvious elastic deformations occur during EHL contacting processes and the operational parameters have significant influences on deformation values. Surface elastic deformations will obviously change surface topographies.
引文
[1]MASJEDI M,KHONSARI M M.On the Effect of Surface Roughness in Point-contact EHL:Formulas for Film Thickness and Asperity Load[J].Tribology International,2015,82:228-244.
[2]贾小攀,王文中,赵自强,等.斜齿轮弹流润滑下的接触疲劳寿命计算[J].摩擦学学报,2014,34(1):8-14.JIA Xiaopan,WANG Wenzhong,ZHAO Ziqiang,et al.A Contact Fatigue Model of Helical Gear under Elastohydrodynamic Lubrication[J].Tribology,2014,34(1):8-14.
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[5]SPERKAP,KˇRUPKA I,HARTL M.Prediction of Real Rough Surface Deformation in Pure Rolling EHL Contact:Comparison with Experiment[J].Tribology Transactions,2012,55(5):698-704.
[6]International Organization for Standardization.ISO281 Rolling Bearings-Dynamic Load Rating and Rating Life[S].Geneva:ISO Copyright Office,2007.
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[9]HOOKE C J,LI K Y,MORALES-ESPEJEL G.Rapid Calculation of the Pressures and Clearances in Rough,Rolling-sliding Elastohydrodynamically Lubricated Contacts.Part 1:Low-amplitude,Sinusoidal Roughness[J].Proceedings of the Institution of Mechanical Engineers,Part C,2007,220(6):915-925.
[10]VENNER C H,COUHIER F,LUBRECHT A A,et al.Amplitude Reduction of Waviness in Transient EHL Line Contacts[J].Tribology Series,1997,32:103-112.
[11]董帮源,刘小君,王静,等.表面织构对重载线接触条件下40Cr钢摩擦性能的影响[J].摩擦学学报,2016,36(2):145-152.DONG Bangyuan,LIU Xiaojun,WANG Jing,et al.Effect of Textured Surface on the Frictional Property of 40Cr Steel under High Load and Line Contact[J].Tribology,2016,36(2):145-152.
[12]李杨,刘小君,王庆生,等.线接触状态下激光加工微造型表面摩擦特性研究[J].摩擦学学报,2013,33(4):349-356.LI Yang,LIU Xiaojun,WANG Qingsheng,et al.Effect of Laser Textured Surface on the Frictional Property in Line Contact[J].Tribology,2013,33(4):349-356.
[13]GACHOT C,ROSENKRANZ A,HSU S M,et al.A Critical Assessment of Surface Texturing for Friction and Wear Improvement[J].Wear,2017,372/373:21-41.
[14]KRUPKA I,HARTL M.The Effect of Surface Texturing on Thin EHD Lubrication Films[J].Tribology International,2007,40(7):1100-1110.
[15]International Organization for Standardization.ISO25178-2-2012 Geometrical Product Specifications(GPS)-Surface Texture:Areal-Part2:Terms,Definitions and Surface Texture Parameters[S].Geneva:ISO Copyright Office,2012.
[16]刘泽九.滚动轴承应用手册[M].北京:机械工业出版社,2014:335.LIU Zejiu.Application Reference Manual of Rolling Ellement Bearing[M].Beijing:China Machine Press,2014:335.
[2]贾小攀,王文中,赵自强,等.斜齿轮弹流润滑下的接触疲劳寿命计算[J].摩擦学学报,2014,34(1):8-14.JIA Xiaopan,WANG Wenzhong,ZHAO Ziqiang,et al.A Contact Fatigue Model of Helical Gear under Elastohydrodynamic Lubrication[J].Tribology,2014,34(1):8-14.
[3]樊瑜瑾,余贵华,纳铿.表面形貌的微观弹流效应研究[J].润滑与密封,1999(2):53-54.FAN Yujin,YU Guihua,NA Keng.A Study of Micro-EHD in Point Contacts[J].Lubrication Engineering,1999(2):53-54.
[4]HU Yuanzhong,BARBER G C,ZHU Dong,et al.AStudy on an FFT-based Approach for Fast Estimation of Pressure Distribution in Point EHL Contacts of Rough Surfaces[J].Tribology Transactions,2001,44(1):59-69.
[5]SPERKAP,KˇRUPKA I,HARTL M.Prediction of Real Rough Surface Deformation in Pure Rolling EHL Contact:Comparison with Experiment[J].Tribology Transactions,2012,55(5):698-704.
[6]International Organization for Standardization.ISO281 Rolling Bearings-Dynamic Load Rating and Rating Life[S].Geneva:ISO Copyright Office,2007.
[7]HEEMSKERK R.EHD Lubrication in Rolling Bearings-review of Theory and Influence on Fatigue Life[J].Estratto da Tribologia e Lubrificazione,1980,4:3-7.
[8]孙军,王震华,桂长林.计入曲轴受载变形的粗糙表面曲轴轴承弹性流体动力润滑分析[J].机械工程学报,2009,45(1):135-140.SUN Jun,WANG Zhenhua,GUI Changlin.Elastohydrodynamic Lubrication Analysis of Crankshaft Bearing Considering Crankshaft Deformation under Load and Roughness Surface[J].Chinese Journal of Mechanical Engineering,2009,45(1):135-140.
[9]HOOKE C J,LI K Y,MORALES-ESPEJEL G.Rapid Calculation of the Pressures and Clearances in Rough,Rolling-sliding Elastohydrodynamically Lubricated Contacts.Part 1:Low-amplitude,Sinusoidal Roughness[J].Proceedings of the Institution of Mechanical Engineers,Part C,2007,220(6):915-925.
[10]VENNER C H,COUHIER F,LUBRECHT A A,et al.Amplitude Reduction of Waviness in Transient EHL Line Contacts[J].Tribology Series,1997,32:103-112.
[11]董帮源,刘小君,王静,等.表面织构对重载线接触条件下40Cr钢摩擦性能的影响[J].摩擦学学报,2016,36(2):145-152.DONG Bangyuan,LIU Xiaojun,WANG Jing,et al.Effect of Textured Surface on the Frictional Property of 40Cr Steel under High Load and Line Contact[J].Tribology,2016,36(2):145-152.
[12]李杨,刘小君,王庆生,等.线接触状态下激光加工微造型表面摩擦特性研究[J].摩擦学学报,2013,33(4):349-356.LI Yang,LIU Xiaojun,WANG Qingsheng,et al.Effect of Laser Textured Surface on the Frictional Property in Line Contact[J].Tribology,2013,33(4):349-356.
[13]GACHOT C,ROSENKRANZ A,HSU S M,et al.A Critical Assessment of Surface Texturing for Friction and Wear Improvement[J].Wear,2017,372/373:21-41.
[14]KRUPKA I,HARTL M.The Effect of Surface Texturing on Thin EHD Lubrication Films[J].Tribology International,2007,40(7):1100-1110.
[15]International Organization for Standardization.ISO25178-2-2012 Geometrical Product Specifications(GPS)-Surface Texture:Areal-Part2:Terms,Definitions and Surface Texture Parameters[S].Geneva:ISO Copyright Office,2012.
[16]刘泽九.滚动轴承应用手册[M].北京:机械工业出版社,2014:335.LIU Zejiu.Application Reference Manual of Rolling Ellement Bearing[M].Beijing:China Machine Press,2014:335.