An energy-based vector hysteresis model for ferromagnetic materials
An energy-based vector hysteresis model for ferromagnetic materials
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DOI：
10.1108/03321640610634344
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发表时间：
2006-01-01
影响因子：
0.7
通讯作者：
Hameyer, K
中科院分区：
文献类型：
--
作者：
Henrotte, F;Nicolet, A;Hameyer, K
目的 - 提出一种基于能量方法的新准静态矢量磁滞模型，其中耗散由类摩擦力表示。设计/方法/途径 - 起点是铁磁材料的局部能量平衡。耗散由类似摩擦力来表示，它源自不可微的凸函数。可以组合几个基本磁滞单元，以增加模型中自由参数的数量，从而提高精度。研究结果 - 类摩擦力是在宏观层面表示磁耗散的好方法。所提出的方法很容易实现，并且在这种情况下不可微分相当于一个简单的“if”语句。研究限制/含义 - 下一步是动态磁滞的扩展和识别过程的深入分析，这在本文中仅概述。实际意义 - 该矢量模型基于局部磁耗散的合理唯象描述，能够在良好的理论基础上对旋转磁滞损耗进行数值分析。原创性/价值 - 它提出了一种简单的、通用的磁滞宏观模型，它本质上是一个向量模型，而不是标量模型的向量化。
Purpose - Proposes a new quasi-static vector hysteresis model based on an energy approach, where dissipation is represented by a friction-like force.Design/methodology/approach - The start point is the local energy balance of the ferromagnetic material. Dissipation is represented by a friction-like force, which derives from a non-differentiable convex functional. Several elementary hysteresis cells can be combined, in order to increase the number of free parameters in the model, and therefore improve the accuracy.Findings - A friction-like force is a good way to represent magnetic dissipation at the macroscopic level. The proposed method is easy to implement and non-differentiability amounts in this case to a simple "if' statement.Research limitations/implications - The next steps are the extension to dynamic hysteresis and the in-depth analysis of the identification process, which is only sketched in this paper.Practical implications - This vector model, which is based on a reasonable phenomenological description of local magnetic dissipation, enables the numerical analysis of rotational hysteresis losses on a sound theoretical basis.Originality/value - It proposes a simple, general purpose macroscopic model of hysteresis that is intrinsically a vector one, and not the vectorization. of a scalar model.