多模式磁场电磁搅拌器仿真及工艺参数优化

Numerical simulation and process parameters optimization of electromagnetic stirrer with multi-mode magnetic field

设计了一款多模式电磁搅拌器,并利用有限元分析软件Ansoft Maxwell建立了多模式磁场电磁搅拌器的三维数值模型,同时利用高斯计对实验平台的电磁场参数进行测量。将两者进行比较之后,发现两者整体趋势一致,数值偏差很小,证明了数值仿真模型的准确性。最后,利用搭建的三维数值模型,研究分析励磁电流强度以及励磁电流频率对旋转磁场、行波磁场以及螺旋磁场的磁感应强度以及电磁力分布规律的影响,以此达到优化工艺参数的目的。

By designing a multi-mode electromagnetic stirrer,this paper established a three-dimensional numerical model of the multi-mode magnetic field electromagnetic stirrer assisted with the finite element analysis software Ansoft Maxwell.At the same time,the electromagnetic field parameters of the experimental platform are measured by using the Gaussian meter.The comparison of the two models shows that the overall trend is consistent and the numerical deviation is small.It testified the accuracy of the numerical simulation model.The influence of excitation current intensity and frequency on the magnetic induction intensity and electromagnetic force distribution of rotating magnetic field,traveling wave magnetic field and spiral magnetic field are studied and analyzed by using the three-dimensional numerical model,so as to optimize the process parameters.