缸套表面2D―motif参数对其摩擦学特性的影响

本资料包含pdf文件1个，下载需要1积分

文章以缸套－活塞环摩擦副为研究对象，设计加工出8组具有不同粗糙度的缸套表面，并采用二维motif（2D-motif）法对其进行了表征，通过试验获得了不同表面的摩擦系数、试件稳定温度和磨损量，建立了2D-motif参数与摩擦学特性的关联性。结果表明：参数AR与摩擦系数密切相关；AR、W与温度密切相关；参数Wte与磨损量密切相关，AW、W与磨损量相关；波纹度motif参数对温度特性、磨损特性起到主导作用，而粗糙度motif参数对摩擦特性起到主导作用。文中研究了试验前、后motif各参数的变化情况，并运用理论进行深入解释，为2D-motif参数的进一步研究和实际缸套表面的设计提供了依据。 In this paper, the cylinder-piston ring was taken as the research object, and eight groups of cylinder with different surface topography were designed, processed, and characterized by two-dimensional motif（ 2D- motif） method. The friction coefficient, stable temperature of samples and wear amount of different surfaces were obtained through experiments. The relationship between 2D-motif parameters and tribological properties was established. The results are as follows, the parameter AR is closely related to the friction coefficient; AR, W are closely related to the temperature; the parameter Wte is closely related to the wear amount, and AW, W are related to the wear amount. It is also found that the motif parameters of waviness play a leading role in temperature characteristics and wear characteristics, while the motif parameters of roughness play a leading role in friction characteristics. The change of the motif parameters before and after the test was studied and explained by theory. The results of this study provide a basis for the further study of 2D-motif parameters and the practical design of cylinder surfaces.