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| 1 | Modeling of surface texturing in hydrodynamic lubrication显示文摘Theoretical modeling of surface texturing in hydrodynamic lubrication is a necessary first step to obtain favorable effect of the texturing.This invited review presents a comprehensive summary of the modeling of several basic applications that was done mostly by the author’s group at Technion and published in the relevant literature. | Izhak ETSION | 2013 | Friction2013，1，3： | 45 |
| 2 | Lubricating a bright future:Lubrication contribution to energy saving and low carbon emission显示文摘Both the academic society and the industry are hunting for new energy forms for the future.However,the world should not forget the conventional technologies that contribute to the sustainable society by technical innovations.Among them,lubrication plays a significant role in energy saving and in low CO2emission by increasing the fuel efficiency and by prolonging the service life of machines.With the advance of novel synthetic approaches,and nanoscience and technologies,novel lubrication oils and additives and their formulations are being developed to reduce friction and wear,and novel surface treatment routes and surface coatings are invented and provide more efficient lubrication.These technologies create tremendous chances for machines to work more efficiently with low energy consumption.Here we review the recent progresses and challenges associated with some novel lubrication techniques that include novel surface treatment(such as texturing,high-performance nanocomposite coatings,adapting coating),tribology design(solid and liquid lubrication),energy-conserving engine oil and novel lubricants and formula(such as ionic liquids,low S,P content additives)which are to be adopted to enhance the fuel efficiency to achieve energy saving and low carbon emission.There is increased demand to replace fossil lubricants by degradable green lubricants.Specially designed coatings can reduce drag significantly during navigation of both airplanes and ships.All these aspects will be also reviewed in the paper. | CAI MeiRong GUO RuiSheng ZHOU Feng LIU WeiMin | 2013 | Science China(Technological Sciences)2013，56，12： | 22 |
| 3 | Experimental study on hydrodynamic effect of orientation micro-pored surfaces显示文摘The orientation of the dimple increases the flow distance in the dimple and produces fluid cumulative effect in the dimple length direction, which leads to obvious hydrodynamic effect as a result. In order to investigate the hydrodynamic effect of orientation dimples, a series of experiments was carried out on a ring-on-ring test. Multi-pored faces were tested with different dimple inclination angles and slender ratios. Film thickness and frictional torque were measured under different conditions of load and rotation speed. Experimental results showed that the orientation dimple could produce obvious dynamic effect by change of the flow direction and the increasing dimple orientation leads to increase of the load capability. The hydrodynamic effect strongly depends on dimple orientation parameters such as inclination angle and slender ratio. A larger load capability can be available by increasing dimple orientation and rotation speed. Experimental results agreed well with the theory that orientation micro-pores can significantly improve hydrodynamic performance of surfaces. | BAI ShaoXian1,2, PENG XuDong1,2, LI JiYun1,2 & MENG XiangKai1,2 1College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310032, China 2Key Laboratory of Special Purpose Equipment and Advanced Processing Technology, Ministry of Education, Zhejiang University of Technology, Hangzhou 310032, China | 2011 | Science China(Technological Sciences)2011，54，3： | 20 |
| 4 | 表面微造型技术改善物体表面摩擦性能的研究显示文摘物体表面的微细形貌深刻影响和改变着物体表面的摩擦性能,这就促使人们利用各种加工手段在物体表面进行微细造型改变表面状况以达到所需要的表面摩擦性能。本文首先论述了微造型的几何参数及其对摩擦性能的影响,接着阐述了近年来物体表面微细形貌加工方法以及表面微造型技术的应用领域,最后提出了表面微造型技术的可能发展方向。 | 王霄 夏立齐 高传玉 符永宏 周明 蔡兰 | 2006 | 润滑与密封2006，31，4： | 12 |
| 5 | A mass-conservative average flow model based on finite element method for complex textured surfaces显示文摘A mass-conservative average flow model based on the finite element method(FEM) is introduced to predict the performances of textured surfaces applied in mechanical seals or thrust bearings.In this model,the Jakobsson-Floberg-Olsson(JFO) boundary conditions are applied to the average flow model for ensuring the mass-conservative law.Moreover,the non-uniform triangular grid is utilized,which can deal with the problem of complex geometric shapes.By adopting the modeling techniques,the model proposed here is capable of dealing with complex textured surfaces.The algorithm is proved correct by the numerical experiment.In addition,the model is employed to gain further insight into the influences of the dimples with different shapes and orientations on smooth and rough surfaces on the load-carrying capacity. | XIE Yi LI YongJian SUO ShuangFu LIU XiangFeng LI JingHao WANG YuMing | 2013 | Science China(Physics,Mechanics & Astronomy)2013，56，10： | 8 |
| 6 | 非接触式机械密封表面开槽技术研究现状显示文摘密封表面开槽式机械密封已成为非接触式机械密封领域的先进密封技术,凭借其特有的动压效应及良好的密封性能,目前已在离心泵、离心机及反应釜等过程装备中广泛使用。开槽式机械密封的主要技术在于开槽环节,特别是微米级深度的浅槽,开槽深度几乎与表面粗糙度同数量级,对于槽深加工精度要求及去粗糙度技术要求较高。而且目前,多数针对非接触式机械密封数值分析及仿真中,都是将槽深假设为毫米级和微米级,如果试验及实际应用中开槽技术不能达到精度要求,其仿真及分析的现实意义就会大打折扣。鉴于此,在对非接触式机械密封的工作机理及流槽设计技术进行简单介绍后,该文对近20年来非接触式机械密封的槽型加工技术进行了系统研究,同时结合相应开槽技术的具体方法、原理及优缺点进行了分析综述,重点介绍了目前兴起的非接触式机械密封的激光雕刻加工法,其较高的加工效率、无污染性、良好的可控性及高精度,使其应用范围日益广泛。同时介绍了最先进的飞秒法开槽技术,以期对进一步的研究及应用提供理论指导。 | 王衍 于雪梅 卢龙 贺毅强 | 2016 | 液压气动与密封2016，36，11： | 7 |
| 7 | 激光微造型表面摩擦学性能的试验研究显示文摘激光表面造型在改变材料摩擦、磨损性能方面具有独特的优点,本文设计了三种不同的微造型图案(圆、菱形和网格),在相同激光参数条件下对球墨铸铁材料表面进行微观造型,分别在万能摩擦磨损试验机上进行有油润滑摩擦磨损试验,并用数字天平称量摩擦前后质量变化,进行磨损量和摩擦系数的比较。研究结果表明激光造型表面有利于摩擦副减磨降摩;网格造型优于常见的圆形和菱形造型,这在一定程度上证明了网格具有良好的储屑能力和多路润滑油传送能力,更可达到减磨降摩的作用。 | 姚燕生 袁根福 钱德才 梁华琪 | 2008 | 应用激光2008，28，6： | 7 |
| 8 | An experimental investigation of tribological performance of triangular textures in water lubrication regime显示文摘Surface texturing has been considered as an effective approach to improve the tribological performances.Based on the consideration of enhancing the tribological performance,the experiments are carried out to investigate tribological performance of triangular textures in water lubrication.The textures are generated by the Nd:YAG laser marking system,with an area density of 20%and a depth of 7 m and are distributed uniformly on the surface of the SiC rings.Compared with the circular textures,the triangular textures have obvious tribological anisotropy.The triangular textures in clockwise direction show the best friction reduction effect among the three textures.The friction reduction mechanisms of the triangular textures in clockwise direction are also analyzed and discussed. | XIE Yi LI YongJian WANG YuMing SUO ShuangFu LIU XiangFeng | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，2： | 6 |
| 9 | 方向微孔表面动压效应实验研究显示文摘表面微孔的方向性可以改变表面流体的流向,在孔区末端的汇聚挤压形成明显的流体动压效应.文中以椭圆微孔表面为研究对象,通过环环润滑实验考察了方向微孔表面的动压效应.对不同倾斜角、方向因子和开孔面积的微孔表面,在不同载荷和转速工况下的膜厚和摩擦扭矩的变化规律进行了研究.实验结果表明:方向微孔通过改变流体的流向形成表面流体膜动压效应,方向微孔表面具有显著的动压承载能力,使摩擦副端面迅速打开,容易形成全膜润滑,避免表面间的摩擦磨损;微孔方向因子、倾斜角等参数对表面动压效应影响明显,方向性越强、转速越高,动压效应越大,表面流体膜承载能力越高.实验结果与理论分析相一致,方向性微孔可有效改善密封端面的动压开启性能. | 白少先 彭旭东 李纪云 孟祥铠 | 2011 | 中国科学:技术科学2011，41，3： | 6 |
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