Modeling magnetic torque and force for controlled manipulation of soft-magnetic bodies
Modeling magnetic torque and force for controlled manipulation of soft-magnetic bodies
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DOI：
10.1109/tro.2007.910775
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发表时间：
2007-12-01
影响因子：
7.8
通讯作者：
Nelson, Bradley J.
中科院分区：
文献类型：
--
作者：
Abbott, Jake J.;Ergeneman, Olgac;Nelson, Bradley J.
我们计算任意磁场在轴对称软磁体上产生的扭矩和力。我们使用统一两个不同磁模型的连续模型，将身体的磁化强度视为所施加磁场的函数。随之而来的是连续的扭矩和力。该模型经过实验验证，并捕获了弱场和饱和场之间经常被忽视的区域，在该区域观察到有趣的行为。我们提供磁场方向，以在给定磁场强度下最大化扭矩。我们还发现了对于给定的车身几何形状和材料的绝对最大扭矩，该扭矩可以通过相对较弱的施加场产生。本文针对那些对软磁体的系统级分析、仿真和实时控制感兴趣的人。
We calculate the torque and force generated by an arbitrary magnetic field on an axially symmetric soft-magnetic body. We consider the magnetization of the body as a function of the applied field, using a continuous model that unifies two disparate magnetic models. The continuous torque and force follow. The model is verified experimentally, and captures the often neglected region between weak and saturating fields, where interesting behavior is observed. We provide the field direction to maximize torque for a given field magnitude. We also find an absolute maximum torque, for a given body geometry and material, which can be generated with relatively weak applied fields. This paper is aimed at those interested in systems-level analysis, simulation, and real-time control of soft-magnetic bodies.