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应用旋滑式光干涉弹流薄膜测量系统研究了自旋对界面滑移条件下玻璃盘-钢球形成的反常弹流油膜的影响,通过弹流接触副与玻璃盘旋转中心距离的调节,在弹流润滑中实现不同程度的自旋,即引入不同的旋滑比.结果表明,随着旋滑比的增加,油膜整体厚度减小,油膜形状呈现明显的非对称性,入口凹陷的深度有所减小;最小油膜厚度的速度指数随旋滑比的增加而增加;固定偏心距,随着载荷的增加,最小膜厚先增加后减小,油膜形状的非对称性增强.对上述观察到的试验现象,也进行了相应的理论解释,认为自旋引起的卷吸速度变化及气穴区的不对称是主要诱因.
The influence of spin on the slippery oil film formed by the glass disk-steel ball under the condition of interface slip was studied by using the spin-slip optical interferometry Elastic Thin Film Measurement System. By adjusting the distance between the ballistic contact pair and the rotating center of the glass disk, The results show that with the increase of the spin-slip ratio, the overall thickness of the oil film decreases and the shape of the oil film shows obvious asymmetry. The depth of the inlet depression The minimum film thickness increases with the increase of the spin-slip ratio.The fixed eccentricity increases with the increase of the load, the minimum film thickness first increases and then decreases, and the asymmetry of the oil film shape is enhanced. Of the test phenomenon, but also the corresponding theoretical explanation, that spin-induced changes in entrainment speed and cavitation area asymmetry is the main incentive.