Investigating the effect of the mean path length on reluctance actuator output force characterization.

The Review of scientific instruments Pub Date : 2022-11-01 DOI:10.1063/5.0099324

Michael Pumphrey, Mohammad Al Saaideh, Kaitlyn Kuchinkaa, Natheer Alatawneh, Mohammad Al Janaideh

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Abstract

This paper investigates the effect of the flux's mean path length (MPL) on the reluctance actuator's analytical model. It determines the circumstances where the model neglecting the MPL is valid. The analysis is carried out for both C-Core and E-Core reluctance actuators; the analytical results are calculated by using MATrix LABoratory and then validated against a finite element model simulation by using COMputer SOLution Multiphysics. In addition, the experimental results of the magnetic force of C-Core and E-Core reluctance actuators are presented and compared with the analytical model. The comparison is obtained under different input currents and air gaps for two different ferromagnetic materials. It can be concluded that the analytical model is valid only for air gaps with a relatively high air gap displacement and for small air gaps, considering the MPL is necessary for accurate results. This means that whenever the reluctance actuator is proposed for high-precision motion system applications, it is essential that the analysis takes into account the effect of the MPL.

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研究平均路径长度对磁阻执行器输出力特性的影响。

本文研究磁通平均路径长度(MPL)对磁阻执行器解析模型的影响。它决定了在何种情况下模型忽略MPL是有效的。对C-Core和E-Core磁阻执行器进行了分析;利用MATrix lab对分析结果进行了计算，并利用COMputer SOLution Multiphysics对有限元模型进行了仿真验证。此外，给出了C-Core和E-Core磁阻执行器的磁力实验结果，并与解析模型进行了比较。对两种不同铁磁材料在不同输入电流和气隙下的性能进行了比较。考虑到MPL是精确计算的必要条件，可以得出结论，分析模型仅适用于气隙位移相对较大的气隙和较小的气隙。这意味着，每当为高精度运动系统应用提出磁阻执行器时，分析考虑MPL的影响是至关重要的。

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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The Review of scientific instruments

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