Analysis of the fluid pressure, load capacity, and coefficient of friction of an elliptic machine hammer peened surface structure in hydrodynamic lubrication
Analysis of the fluid pressure, load capacity, and coefficient of friction of an elliptic machine hammer peened surface structure in hydrodynamic lubrication
复制标题
DOI：
10.1007/s11740-016-0696-1
复制
发表时间：
2016-09
期刊：
影响因子：
--
通讯作者：
D. Trauth;J. Stanke;A. Shirobokov;P. Mattfeld;F. Klocke
中科院分区：
文献类型：
--
作者：
D. Trauth;J. Stanke;A. Shirobokov;P. Mattfeld;F. Klocke
最近，利用full - sommerfeld边界条件解析求解Reynolds方程，讨论了椭圆机锤壁（MHP）表面结构内的速度分布（truth et al. in Tribol Lett 60(19):1 - 13,2015）。然而，为了设计MHP工艺以获得确定的摩擦特性和流体膜的负载能力，还必须分析压力分布。因此，在这篇贡献中，流体压力是用Full-Sommerfeldfirst来讨论的，然后用swift - stieber边界条件来扩展之前的工作，以考虑空化效应。因此，几何和工艺参数对流体压力、承载能力和摩擦系数的影响将使用基于绝对和无因次数的方法进行分析。为了评估侧向效应的影响，将半解析一维结果与基于theRaimondiapproach的数值二维结果进行了比较。因此，对机械锤强化制造的表面设计提出了建议。
Recently, the velocity distribution within an elliptical machine hammer peened (MHP) surface structure was discussed by solving analytically the Reynolds equation using Full-Sommerfeldboundary condition (Trauth et al. in Tribol Lett 60(19):1–13, 2015). However, in order to design the MHP process to obtain defined friction characteristics and load capacities of a fluid film, the pressure distribution has to be analyzed as well. Thus, in this contribution, the fluid pressure is discussed using Full-Sommerfeldfirst, then the previous work is extended by theSwift–Stieberboundary condition to account for cavitation effects. Thereby, the influence of geometry and process parameters on the fluid pressure, load capacity and coefficient of friction will be analyzed both using an approach based on absolute and dimensionless numbers. To asses the influence of lateral effects, the semi-analytic 1D results are compared to numerical 2D results based on theRaimondiapproach. Thereby, a recommendation for a surface design manufactured by machine hammer peening is formulated.