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为考察表面粗糙度对织构表面摩擦学性能的影响,采用求解基于平均雷诺方程的表面织构润滑计算模型的方法,研究综合粗糙度和方向参数等对摩擦系数及最优织构参数的影响规律.结果表明:当织构表面具有横向粗糙条纹时具有较优的摩擦学性能表现;当综合粗糙度σ<0.5μm时,摩擦系数和最优织构深度不随综合粗糙度的变化而变化,当σ≥0.5μm时,摩擦系数和最优织构深度随粗糙度的增大而增大;最优织构直径随综合粗糙度的增大而增大,最优织构面积比与综合粗糙度之间不相关,最优织构参数不随方向参数的变化而变化.在仿真结果的基础上,建立考虑粗糙度影响时表面织构的最优参数设计模型,试验验证所建立的模型是合理的和正确的.
In order to investigate the influence of surface roughness on the tribological properties of the textured surface, the method of calculating the surface texture lubrication model based on the average Reynolds equation was used to study the effects of the roughness and orientation parameters on the friction coefficient and the optimal texture parameters The results show that the friction coefficient and the optimal texture depth do not change with the comprehensive roughness when the textured roughness is less than 0.5μm, When σ≥0.5μm, the friction coefficient and the optimal depth of texture increase with the increase of roughness. The optimum texture diameter increases with the increase of the overall roughness, and the optimal texture area ratio and comprehensive roughness The optimal texture parameters do not change with the change of the direction parameters.Based on the simulation results, the optimal parameter design model of the surface texture considering the influence of roughness is established, and the model established by the experimental verification is reasonable And correct.