Theoretical computations for the torque of magnetic coupling
Theoretical computations for the torque of magnetic coupling
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DOI：
10.1109/20.376405
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
Y. Yao;G. Chiou;Derray Huang;Shyh-Jier Wang
中科院分区：
文献类型：
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作者：
Y. Yao;G. Chiou;Derray Huang;Shyh-Jier Wang
通过有限元分析（FEA）和扭矩公式技术进行理论计算，研究了不同磁极的磁耦合扭矩。磁耦合扭矩对磁极数量敏感，并且随着磁环之间距离的增加而减小。从我们的理论计算中发现，对于短距离磁环之间的磁耦合，我们可以通过增加磁极数量来增加扭矩；然而，对于间距较大的磁环，情况并非如此。我们还证明了MagNet软件的理论计算以及由弗拉尼（Furlani）在1993年建立的扭矩公式对于计算各种磁耦合的扭矩是相当一致且有用的。最后，通过使用来自钕铁硼磁耦合的实验数据，成功地对理论计算进行了验证。
The torque of magnetic coupling with different magnetic poles has been investigated by theoretical computations with both FEA and torque formula techniques. The torque of magnetic coupling is sensitive to the number of magnetic poles, and it decreases with increasing the distance between the magnetic rings. From our theoretical computations, we find that we can increase the torque by increasing the number of poles for magnetic coupling between magnetic rings with short distance; however, this is not true for magnetic rings with large separation. We also demonstrate that the theoretical computations of both MagNet software and torque formula established by Furlani (1993) are quite consistent and useful for computing the torque of various magnetic couplings. Finally, the theoretical calculation has been successfully tested by using an experimental data taken from a NdFeB magnetic coupling. >