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预测运动副工作过程中的磨损及其摩擦表面微观几何的变化对实现动态机械设计十分重要。文中对三体磨损状态下摩擦表面轮廓高度概率分布密度的预测进行了理论分析。结果表明 ,其表面粗糙度的变化与所考察的轮廓线沿两个表面相对运动方向的位置有关 ,随着磨程的进行 ,它们的表面宏观轮廓趋于特定形状 ,这与实际运动副运行结果基本相符。
It is very important to predict the wear and tear and the microscopic changes of the friction surface during the working process of the kinematic pair to realize the dynamic mechanical design. In this paper, the theoretical analysis is made on the prediction of the probability distribution density of the friction surface profile under three-body wear condition. The results show that the change of the surface roughness is related to the position of the contour line in the direction of the relative movement along the two surfaces. As the grinding process progresses, the macroscopic profile of the surface tends to a specific shape, Basic match.