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Coupled Electromechanical Analysis of a Permanent-Magnet Bearing

机译：永磁轴承的机电耦合分析

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摘要

In this paper we present a new Permanent Magnets (PMs) bearing, which is composed of a rotor capable to levitate at a short distance from a dedicated stator. Proper configurations of PMs arranged on both the stator and the rotor allows having the magnetic suspension. Intrinsic mechanical instability characterizes the device; a passive stabilization is attempted exploiting eddy currents on a conducting sheet that surrounds the magnets on the stator. The system has been simulated by means of a dedicated numerical code that takes into account the effects of magneto-mechanical coupling. The coupled problem has been integrated by means of a prediction-correction nested scheme. Some interesting results, extensively discussed here, has been produced by simulation activity. In particular the stability of to the center of mass with respect to the translations has been passively obtained, if the rotations are actively prevented.
机译：在本文中，我们介绍了一种新型的永磁（PM）轴承，该轴承由能够在距专用定子短距离处悬浮的转子组成。布置在定子和转子上的PM的正确配置均可实现磁悬浮。固有的机械不稳定性是器件的特征。试图利用围绕定子上磁体的导电片上的涡电流进行无源稳定化。该系统已通过专用数字代码进行了模拟，该代码考虑了磁机械耦合的影响。已通过预测校正嵌套方案对耦合问题进行了集成。仿真活动产生了一些有趣的结果，在这里进行了广泛讨论。如果主动地防止旋转，则特别地已经获得了相对于平移相对于质心的稳定性。

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