滚动轴承的“跨步跳动”

Running Vibration of Rolling Bearings

经典轴承分析理论由于把滚动体载荷分布处理成连续变量,因而忽略了滚动体离散性所引起的轴承振动。当滚动体通过承载区时,由于受压滚动体数目的奇偶性变化而使轴承产生周期性振动,分析了这种振动的幅值和径向游隙的影响,并提出了"奇压"、"偶压"现象和"跨步跳动"概念。

The load distribution of rolling elements is treated as continuous variable in classical rolling bearing analysis. In actual, bearing radial displacements are not same because of the difference of rolling dement number into the load area, even if the bearing is under the same load. In the paper the bearing running vibration is analyzed in the two conditions of odd and even number of rolling dement in load area, and the clearance effect is considered at the same time.