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Dynamic characteristics of spiral groove bearing spindles: comparison between rotating- shaft and fixed-shaft designs

机译：螺旋槽轴承主轴的动态特性：旋转轴和固定轴设计之间的比较

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摘要

In this paper, two types of spiral groove bearing (SGB) spindles, a rotating-shaft spindle and a fixed-shaft spindle, are analysed, and the dynamic characteristics of these two types of spindles are tested and compared. The effects of lubricants on the dynamic characteristics and power consumption of the spindles are considered. It is found that the dynamic characteristics of the fixed-shaft spindle are much better in terms of non-repeatable run out than those of the rotating-shaft spindle. The lubricants are found to have significant effects on both the dynamic characteristics and power consumption of the spindles.
机译：本文分析了两种类型的螺旋槽轴承（SGB）主轴，即旋转轴主轴和固定轴主轴，并测试和比较了这两种主轴的动态特性。考虑了润滑剂对主轴动态特性和功率消耗的影响。已经发现，就不可重复跳动而言，固定轴主轴的动态特性要比旋转轴主轴的动态特性好得多。发现润滑剂对主轴的动态特性和功率消耗均具有显着影响。

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