COMPARATIVE ANALYSIS BETWEEN AXIAL AND COAXIAL MAGNETIC COUPLINGS

Y. Akcay, P. Giangrande, C. Gerada, M. Galea
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引用次数: 8

Abstract

The adoption of magnetic couplings enables the transmission of mechanical power relying on the magnetic fields interaction rather than a physical mechanical connection. Hence, the contactless speed/torque transmission leads to improvements in terms of efficiency and reliability, due to the absence of wear out between moving parts. For a specific application, the most appropriate magnetic coupling configuration (i.e. axial or coaxial) is usually identified through a trade-off study. In this paper, a comparative analysis between axial and coaxial magnetic couplings is presented using a two-dimensional subdomain approach. Based on a full-parametric geometry, two 2D analytical tools are developed for each magnetic coupling configuration. These analytical tools are validated against finite element results in order to prove their effectiveness. Finally, the implemented models are used to investigate the impact of parameters, such as permanent magnet span, airgap thickness and number of pole-pairs, on the maximum static torque.
轴向与同轴磁力联轴器的对比分析
磁联轴器的采用使机械动力的传递依靠磁场的相互作用,而不是物理的机械连接。因此,由于运动部件之间没有磨损,非接触式速度/扭矩传输导致效率和可靠性的提高。对于特定的应用,最合适的磁耦合配置(即轴向或同轴)通常是通过权衡研究确定的。本文采用二维子域方法对轴向和同轴磁联轴器进行了比较分析。基于全参数几何,开发了两个二维分析工具,用于每种磁耦合结构。为了证明这些分析工具的有效性,对有限元结果进行了验证。最后,利用实现的模型研究了永磁体跨度、气隙厚度和极对数等参数对最大静转矩的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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