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本文从理论上揭示了轴向控制式磁力轴承的自激振动发生机理,对其振动稳定性进行了理论分析,导出了与实验基本相一致的无量钢的稳定边界曲线族,为合理选择磁力轴承的转子和阻尼装置诸参数提供了理论依据。本文又进一步应用理论分析的成果、设计样机诸参数,成功地解决了由磁力轴承悬浮的10公斤转子在30000转/分的高速情况下进行了多次稳定运行的重要技术课题。
In this paper, the mechanism of self-excited vibration of axially controlled magnetic bearings is revealed theoretically, and its vibration stability is theoretically analyzed. A stable boundary curve family of infinite amounts of steel consistent with the experimental results is derived. In order to select a reasonable magnetic bearing The rotor and damping device parameters provide the theoretical basis. In this paper, we further apply the theoretical analysis results and design prototype parameters to successfully solve the important technical issue that the 10 kg rotor suspended by a magnetic bearing is stable under a high speed of 30,000 rpm for many times.