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根据滚动轴承的分析理论建立了轴承的动态数学模型并通过Hook Jeeves的优化方法求解 ,研究了高速角接触陶瓷球轴承的动态特性 ,并与传统的钢轴承作了对比 .结果表明 :与低转速工况时相比 ,高转速时轴承的动态性能不仅受预加载荷的影响 ,而且在更大程度上与转速和滚珠材料特性有关 ;随转速的升高 ,轴承的轴向刚度与径向刚度均发生显著变化 ,变化趋势为先下降后上升 ;在高速状态下 ,与传统钢轴承相比 ,陶瓷球轴承的接触应力及变形明显降低、接触角变化较小、轴向与径向刚度变化程度相对较低、动态特性相对稳定 ,从而具有传统钢球轴承无可比拟的优越性 .
According to the analysis theory of rolling bearing, the dynamic mathematical model of the bearing is established and solved by the optimization method of Hook Jeeves. The dynamic characteristics of the high speed angular contact ceramic ball bearing are studied and compared with the traditional steel bearing. Compared with the condition of high speed, the dynamic performance of the bearing is not only affected by the preload, but also with the speed and ball material properties to a greater extent; with the increase of speed, the bearing axial stiffness and radial stiffness are The contact angle and the deformation of the ceramic ball bearings are obviously reduced compared with the traditional steel bearings, the contact angle changes little, and the degree of axial and radial stiffness changes relatively Lower, relatively stable dynamic characteristics, which has the traditional steel ball bearings unparalleled superiority.