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作 者:程家豪 陈文刚[1] 王泽霄 郭思良 魏北朝 王海军[1] 袁浩恩 罗海 CHENG Jia-hao;CHEN Wen-gang;WANG Ze-xiao;GUO Si-liang;WEI Bei-chao;WANG Hai-jun;YUAN Hao-en;LUO Hai(School of Machinery and Transportation,Southwest Forestry University,Kunming 650224,China)
机构地区:[1]西南林业大学机械与交通学院,昆明650224
出 处:《表面技术》2023年第11期128-138,215,共12页Surface Technology
基 金:国家自然科学基金(51865053);国家外专局外国专家项目(G2021039004);云南省农业联合专项项目(202101BD070001-051)。
摘 要:减少摩擦损失是高性能发动机效率的一个重要方面。活塞作为发动机组成的一个重要部件,在机械损失上损耗了发动机产生的总能量的40%,近乎于占据了发动机摩擦损失能量的一半,因此在发动机活塞-缸套上制备表面织构以改善活塞摩擦副的摩擦学性能,保持发动机在实际运行中拥有良好的性能是现在发动机发展不可或缺的。表面纹理已广泛应用于改善滑动表面的摩擦性能,减少磨损、减低摩擦等是表面纹理化应用在减摩抗磨方面最直接的效果体现。主要围绕近些年发表关于表面织构几何参数对活塞-缸套的影响,从有限元模拟分析以及实验室试验研究等两个方面综述织构应用在活塞-缸套上的研究进展,再从织构形状、织构面密度、织构排列方式及其他参数方面等方面对活塞/缸套的摩擦磨损影响进行对比分析,以帮助后续研究者在该方向的研究提供参考。依据机械部件之间的磨损量以及摩擦因数体现出表面织构运用之后的摩擦学性能。最后对表面织构在活塞-缸套上的发展趋势进行展望。Surface weave has become one of the effective ways to reduce friction and antiwear in modern machinery.The weave parameters,lubrication state,surface morphological characteristics,location and distribution all play an important role in friction and antiwear.As an important part of the engine,the piston loses 40%of the total energy generated by the engine,which is nearly half of the energy lost by the engine friction.Therefore,it is indispensable for the development of the engine to prepare the surface weave on the piston-cylinder liner to improve the tribological performance of the piston friction and keep the engine in good performance in actual operation.In this paper,the research progress of surface weave application on piston-cylinder liner in terms of finite element simulation and laboratory experimental research were reviewed,and then the frictional wear effects on piston/cylinder liner in terms of weave shape,weave surface density, weave arrangement and other parameters were compared. The tribological performance of the surface weave after its application was shown by the wear amount and friction coefficient between mechanical components. Finally, the development trend of surface weave in piston/cylinder liner was discussed. This paper summarized the analysis in terms of weave shape, weave surface density, weave arrangement, and other parameters in both finite element simulations and laboratory experimental studies. The surface weave in the study was mainly divided into two forms: raised and depressed, where the raised weave was mainly used to increase the friction coefficient and hydrophobicity, while the depressed weave was on the contrary, generally used to reduce the friction coefficient and reduce the resistance in the sliding process. In the study of mechanical components, the depressed weave was often used to increase the energy conversion efficiency, the service life of the component and the friction coefficient between the contact surfaces. The paper also went on to discuss the forming method of d
关 键 词:表面织构 活塞-缸套 摩擦磨损 有限元仿真 试验研究
分 类 号:TH117[机械工程—机械设计及理论]
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