表面织构对缸套-活塞环摩擦学性能的影响
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摘要
设计并制备了两种螺纹槽表面织构缸套,采用自制的缸套-活塞环摩擦磨损试验机进行模拟试验.实时采集试验过程中缸压、缸套-活塞环间油膜接触电阻及平均摩擦力,测量活塞环磨损量和缸套表面形貌,与未加工表面织构缸套对比.研究表明:相对于未加工表面织构缸套,表面螺纹条数N为1、螺距S为40,mm、槽宽w为3,mm、槽深宽比e为0.067及表面占有率Sp为0.076的缸套显著提升了缸套-活塞环摩擦副的工作性能,其缸套-活塞环的密封性能提升7.7%,、活塞行程中段的螺纹槽区域能够形成良好的流体动压润滑,油膜的润滑效果提升30.8%,、减摩性能提升7%,、缸套抗磨性能提升37.4%,及活塞环抗磨性能提升49%,;而N为2、S为176,mm、w为3,mm、e为0.067和Sp为0.040的缸套的减摩性能提升2.5%,、缸套抗磨性能提升18.9%,及活塞环的抗磨性能提升32.7%,.
Two kinds of thread grooves surface texturing in cylinder liner were designed,machined and tested using the cylinder liner-piston ring friction and wear tester.Compared with the untreated cylinder liner,the cylinder pressure,the contact resistance of the oil film between the cylinder liner and the piston ring,the average friction force of the friction components,the wear losses of piston ring and the worn surface morphologies of the cylinder liner were observed to study the performances of the cylinder liner with thread groove textures.The tested cylinder liner has a surface area ratio Sp of 0.076,a thread piece N of 1,a thread pitch S of 40,mm,a groove width w of 3,mm and a groove depth-to-width ratio e of 0.067.The results show that,compared with the untreated cylinder liner,the cylinder liner(single-grooved cylinder liner)has obvious contribution to improve the working performance of the cylinder liner-piston ring,and the sealing performance has improved by 7.7%,.As the hydrodynamic lubrication is formed in the middle of the piston stroke in the thread groove area,the lubrication performance of oil film increases by 30.8%,,the anti-friction performance has improved by 7%,,the anti-wear performance of cylinder liner and piston ring has an average reduction of 37.4%,and 49%, respectively.In addition,the cylinder liner(double-grooved cylinder liner)with a Sp of 0.040,a N of 2,a S of 176,mm,a w of 3,mm,an e of 0.067,has 2.5%, improvement in anti-friction performance,while the anti-wear performance of cylinder liner and piston ring improves 18.9%, and 32.7%, respectively.
Two kinds of thread grooves surface texturing in cylinder liner were designed,machined and tested using the cylinder liner-piston ring friction and wear tester.Compared with the untreated cylinder liner,the cylinder pressure,the contact resistance of the oil film between the cylinder liner and the piston ring,the average friction force of the friction components,the wear losses of piston ring and the worn surface morphologies of the cylinder liner were observed to study the performances of the cylinder liner with thread groove textures.The tested cylinder liner has a surface area ratio Sp of 0.076,a thread piece N of 1,a thread pitch S of 40,mm,a groove width w of 3,mm and a groove depth-to-width ratio e of 0.067.The results show that,compared with the untreated cylinder liner,the cylinder liner(single-grooved cylinder liner)has obvious contribution to improve the working performance of the cylinder liner-piston ring,and the sealing performance has improved by 7.7%,.As the hydrodynamic lubrication is formed in the middle of the piston stroke in the thread groove area,the lubrication performance of oil film increases by 30.8%,,the anti-friction performance has improved by 7%,,the anti-wear performance of cylinder liner and piston ring has an average reduction of 37.4%,and 49%, respectively.In addition,the cylinder liner(double-grooved cylinder liner)with a Sp of 0.040,a N of 2,a S of 176,mm,a w of 3,mm,an e of 0.067,has 2.5%, improvement in anti-friction performance,while the anti-wear performance of cylinder liner and piston ring improves 18.9%, and 32.7%, respectively.
引文
[1]谢友柏,张嗣伟.摩擦学科学及工程应用现状与发展战略研究[M].北京:高等教育出版社,2009.
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[9]朱峰,徐久军,孙健,等.松孔镀铬缸套磨损机理研究[J].内燃机学报,2017,35(3):274-279.
[10]李见,刘小君,王静,等.激光加工微凹坑表面对缸套-活塞环摩擦性能的影响[J].内燃机学报,2011,29(6):555-562.
[11]Scaraggi M,Mezzapesa P,Carbone G,et al.Friction properties of lubricated laser-micro textured-surfaces:An experimental study from boundary-to hydrodynamiclubrication[J].Tribology Letters,2013,49(1):117-125.
[12]Vladescu S,Medina S,Olver A,et al.Lubricant film thickness and friction force measurements in a laser surface textured reciprocating line contact simulating the piston ring-liner pairing[J].Tribology International,2016,98(6):317-329.
[13]Gu C,Meng X,Xie Y,et al.Effects of surface texturing on ring/liner friction under starved lubrication[J].Tribology International,2016,94(2):591-605.
[14]尹必峰,钱晏强,汪博文.柴油机缸套表面织构协同润滑效应[J].内燃机学报,2014,32(2):178-185.
[15]Wu T,Peng Y,Wu H,et al.Full-life dynamic identification of wear state based on on-line wear debris image features[J].Mechanical Systems and Signal Processing,2014,42(1/2):404-414.
[16]Zhou Y,Zhu H,Tang W,et al.Development of the theoretical model for the optimal design of surface texturing on cylinder liner[J].Tribology International,2012,52(8):1-6.
[17]Tomanik E.Modelling the hydrodynamic support of cylinder bore and piston rings with laser textured surfaces[J].Tribiology International,2013,59(3):90-96.
[18]Etsion I,Sher E.Improving fuel efficiency with laser surface textured piston rings[J].Tribology International,2009,42(4):542-547.
[2]Guo Z,Yuan C,Liu P,et al.Study on influence of cylinder liner surface texture on lubrication performance for cylinder liner-piston ring components[J].Tribology Letters,2013,51(1):9-23.
[3]符永宏,张华伟.微造型活塞环表面的润滑性能数值分析[J].内燃机学报,2009,27(2):180-185.
[4]Kovalchenko A,Ajayi O,Erdemir A,et al.Friction and wear behavior of laser textured surface under lubricated initial point contact[J].Wear,2011,271:1719-1725.
[5]Wang X,Wang J,Zhang B,et al.Design principles for the area density of dimple patterns[J].Journal of Engineering Tribology,2015,229(4):538-546.
[6]Lawrence K,Ramamoorthy B.Multi-surface topography targeted plateau honing for the processing of cylinder liner surfaces of automotive engines[J].Applied Surface Science,2016,365(1):19-30.
[7]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(2):21-41.
[8]郭智威.船舶柴油机缸套-活塞环表面纹理表征及运行状态辨识方法研究[D].武汉:武汉理工大学能源与动力工程学院,2014.
[9]朱峰,徐久军,孙健,等.松孔镀铬缸套磨损机理研究[J].内燃机学报,2017,35(3):274-279.
[10]李见,刘小君,王静,等.激光加工微凹坑表面对缸套-活塞环摩擦性能的影响[J].内燃机学报,2011,29(6):555-562.
[11]Scaraggi M,Mezzapesa P,Carbone G,et al.Friction properties of lubricated laser-micro textured-surfaces:An experimental study from boundary-to hydrodynamiclubrication[J].Tribology Letters,2013,49(1):117-125.
[12]Vladescu S,Medina S,Olver A,et al.Lubricant film thickness and friction force measurements in a laser surface textured reciprocating line contact simulating the piston ring-liner pairing[J].Tribology International,2016,98(6):317-329.
[13]Gu C,Meng X,Xie Y,et al.Effects of surface texturing on ring/liner friction under starved lubrication[J].Tribology International,2016,94(2):591-605.
[14]尹必峰,钱晏强,汪博文.柴油机缸套表面织构协同润滑效应[J].内燃机学报,2014,32(2):178-185.
[15]Wu T,Peng Y,Wu H,et al.Full-life dynamic identification of wear state based on on-line wear debris image features[J].Mechanical Systems and Signal Processing,2014,42(1/2):404-414.
[16]Zhou Y,Zhu H,Tang W,et al.Development of the theoretical model for the optimal design of surface texturing on cylinder liner[J].Tribology International,2012,52(8):1-6.
[17]Tomanik E.Modelling the hydrodynamic support of cylinder bore and piston rings with laser textured surfaces[J].Tribiology International,2013,59(3):90-96.
[18]Etsion I,Sher E.Improving fuel efficiency with laser surface textured piston rings[J].Tribology International,2009,42(4):542-547.
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