摘要
基于磁悬浮驱动原理,根据毕奥-萨伐尔磁场基本定律,分析并计算同轴放置的双级线圈轴线上任一点的磁场及其在不同气隙高度下的磁场作用力,并应用高斯计对双级线圈间的场强进行试验,对比试验数据与理论计算结果,两者基本一致。在Ansys电磁耦合模块中建立了双级线圈电磁-永磁驱动模型,对模型间的磁场进行仿真分析,得到在磁悬浮驱动织针结构下,永磁体所受电磁力随自身悬浮高度变化的曲线关系,并给出单针筒电磁-永磁间磁场分布云图。
Based on Maglev-drive principle and Biot-Savart Law, the magnetic force induced by coaxially ar- ranged coils has been analyzed and calculated when the coils are separated into different air-gap distances, followed by experiments to validate the magnetic field of the coils through Gauss meter. By comparing results obtained from theoretical calculation with experimental results, it shows a well consistency between them. Then, the finite element model for solenoids-magnet drive electromagnetic mechanism has also been established, through Ansys electromagnetic coupling analysis module, in order to gain an image-based analysis of the magnetic-field distribution of this model. Finally, the curve predicting the relationship between electromagnetic force exerted on the magnet and magnet＇s suspension heights has been obtained, as well as the magnetic-field distribution topograph within a single needle cylinder.
出处
《针织工业》
2017年第5期15-17,共3页
Knitting Industries
基金
国家自然科学基金(51175384
51305309)
湖北省自然科学基金(2014CFA099)
关键词
轴向磁悬浮
织针
双级线圈
电磁场
Axially Mag-lev
Knitting Needle
Double Solenoids
Electromagnetic Field
