摘要
针对Jiles-Atherton模型对不饱和小回线进行建模时易出现不对称、不闭合的问题,对磁性材料迟滞小回线的变化规律进行了分析,找出影响小回线变化规律的钉扎系数K,对其进行了修订,得到可广泛适用于未饱和状态下的对称和不对称的小回线迟滞模型,并与实验曲线进行了对比,对比表明,修订后的仿真模型可很好地拟合不饱和状态下的迟滞小回线。
Aiming at the problems such as symmetric and unclosed characteristics,the unsaturated minor loops are modeled with Jiles-Atherton method and the changing disciplines of the hysteresis minor loops of giant magnetostrictive material are analyzed.The pinning parameter k is found to be the main element to affect the changing disciplines of the minor loops and revised.Then,the saturated and unsaturated minor loops which could be comprehensively applied are obtained and compared with experimental curves.The results indicate that the revised simulation model can fit the saturated and unsaturated giant magnetostrictive minor loops well.
出处
《杭州电子科技大学学报（自然科学版）》
2012年第6期173-175,共3页
Journal of Hangzhou Dianzi University：Natural Sciences
基金
国家自然科学基金资助项目(50905051)
浙江省自然科学基金资助项目(Y1080004)
浙江省重点科技创新团队资助项目(R50003)
关键词
超磁致伸缩材料
磁滞
不饱和小回线
不对称
the giant magnetostrictive material
hysteresis
the unsaturated minor loops
asymmetry
