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电磁轴承中磁场时间和空间变化对涡流的影响

, PP. 129-133

Keywords: 电磁轴承,磁场,时间,空间,涡流,有限元

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Abstract:

以向心电磁轴承为例,分别讨论了磁场随时间、空间变化对涡流场的影响,给出了求解二维问题的数学模型,然后用有限元求解,着重分析两者同时变化时,涡流与转子转速、励磁电流频率的关系。最后从数值解得出了频率和转速综合作用下的涡流损耗值与两者单独作用的值有平方关系的结论,并指出可以利用该结论进行分步求解。

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