CMH模型中部分参数对磁滞回线形状影响的研究

Influences of the Complete-Moving-Hysteresis Model Partial Parameters on the Hysteresis Loops

研究了Complete -Moving -Hysteresis模型计算公式中部分参数对磁滞回线形状的影响 ,发现饱和磁化强度Ms 和移动参数α对回线形状的影响并不显著 ,但参量γ的影响却是明显的 随着γ值的增加 ,回线的斜率增加 ,突变性增强 从CMH模型计算公式中可看出 ,γ值的增大或减小对可逆Mr 和不可逆Mi 的影响较大

The influences of some CMH model parameters on the hysteresis loops are studied.Most loops only altered little when the saturation magnetization M s and moving parameter α increase twice.The slope of most loops increases with the increment of the parameter γ.It is shown that the influences of the parameter γ changes on the result M r and M i are greater from the CMH model calculation formula.This result explains that the choice of the parameter γ is more important to modulate different hysteresis loops by using CMH model.