The oil storage effect of textures is beneficial for lubrication performance under starved lubrication. When the larger of the two surfaces in friction pairs is textured, the moving textures should be considered because the boundary conditions are transiently changed at each moment. This is especially for the cross-hatched textures, which are manufactured on the cylinder liner while not on the piston ring. However, it means that the calculation cost will be very expensive for engineering friction pairs because the required calculation scale is very large and the required time step is very small. So the dynamic characteristics of moving textures on engineering surfaces are normally neglected in the existing researches. In this study, a starved lubrication model of the piston ring-cylinder liner (PRCL) system is established considering the oil storage effect, local hydrodynamic effect and dynamic characteristics of the moving cross-hatched textures. To speed up the calculation, an efficient parallel algorithm is developed. The results show that there is a significant difference in minimum oil film thickness (MOFT), wear load and oil film boundaries between stationary textures and moving textures, so the moving textures should not be simplified. This is helpful to find a better design of textures for engineering friction pairs.

中文翻译：

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基于并行计算的贫润滑下运动网格纹理研究

纹理的储油作用有利于在缺乏润滑下的润滑性能。当摩擦副中两个表面中较大的一个被纹理化时，应该考虑移动纹理，因为边界条件在每个时刻都是瞬态变化的。这尤其适用于在气缸套上而不是在活塞环上制造的交叉阴影纹理。然而，这意味着工程摩擦副的计算成本将非常昂贵，因为所需的计算规模非常大，所需的时间步长非常小。因此，现有的研究通常忽略了工程表面运动纹理的动态特性。在这项研究中，考虑储油效应、局部流体动力效应和运动交叉影线纹理的动态特性，建立了活塞环-缸套（PRCL）系统的贫油润滑模型。为了加快计算速度，开发了一种高效的并行算法。结果表明，静止织构和运动织构的最小油膜厚度（MOFT）、磨损载荷和油膜边界存在显着差异，因此不应简化运动织构。这有助于为工程摩擦副找到更好的纹理设计。结果表明，静止织构和运动织构的最小油膜厚度（MOFT）、磨损载荷和油膜边界存在显着差异，因此不应简化运动织构。这有助于为工程摩擦副找到更好的纹理设计。结果表明，静止织构和运动织构的最小油膜厚度（MOFT）、磨损载荷和油膜边界存在显着差异，因此不应简化运动织构。这有助于为工程摩擦副找到更好的纹理设计。