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首页> 外文期刊>JSME International Journal. Series C, Mechanical Systems, Machine Elements and Manufacturing >Repulsive Magnetic Bearing Using a Piezoelectric Actuator for Stabilization
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Repulsive Magnetic Bearing Using a Piezoelectric Actuator for Stabilization

机译：使用压电驱动器稳定的斥力电磁轴承

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摘要

A repulsive magnetic bearing system equipped with a piezoelectric actuator for the motion control of permanent magnets is studied experimentally. In this system, the radial motions of the rotor are passively supported by repulsive forces between permanent magnets. The motion in the axial direction is stabilized by moving the permanent magnets for radial suspension with a piezoelectric actuator. In the experiments, a piezoelectric actuator with a stroke of 200 μm was installed first. PD and I-PD controllers were applied to achieve levitation without any mechanical contact. It was experimentally shown that the dynamic characteristics of the levitation system could be adjusted by pole assignment. Next the actuator was replaced by an actuator with a stoke of 90 μm. Experimental results demonstrated that the rotor can follow stepwise command signal whose magnitude was within +-20 μm.
机译：实验研究了配备有用于永久磁铁运动控制的压电致动器的斥力磁轴承系统。在该系统中，转子的径向运动由永磁体之间的排斥力被动地支持。通过使用压电致动器移动用于径向悬挂的永磁体，可以稳定轴向运动。在实验中，首先安装了行程为200μm的压电致动器。 PD和I-PD控制器用于实现悬浮而没有任何机械接触。实验表明，悬浮系统的动力特性可以通过极点分配来调节。接下来，将执行器替换为行程为90μm的执行器。实验结果表明，转子可以遵循幅度为+ -20μm的步进指令信号。

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