基于因素趋势法的GMA磁场研究和仿真分析  

Magnetic field research and simulation analysis of giant magnetostrictive actuator based on factor trend method

作　　者：闫洪波[1,2] 马庆振 汪建新 于均成[1] 付鑫 YAN Hongbo;MA Qingzhen;WANG Jianxin;YU Juncheng;FU Xin(College of Mechanical Engineering,Inner Mongolia University of Science&Technology,Baotou 014010 China;National Engineering Research Center for Technological Innovation Method and Tool,Tianjin 300401,China)

机构地区：[1]内蒙古科技大学机械工程学院,内蒙古包头014010 [2]国家技术创新方法与实施工具工程技术研究中心,天津300401

出　　处：《兵器材料科学与工程》2023年第1期88-93,共6页Ordnance Material Science and Engineering

基　　金：内蒙古自然科学基金项目(2020LH05023)。

摘　　要：为增强超磁致伸缩驱动器(GMA)输出特性,提高超磁致伸缩材料(GMM)棒在磁场下的磁致伸缩性能,根据安培环路定律、基尔霍夫定律、磁通的连续性定律建立GMA磁路模型,推导出GMM棒中心线磁场强度和均匀率与GMA内各结构参数的关系式。在Ansys Maxwell中建立简化的二维平面模型,依据L_(25)(5^(5))正交试验仿真分析,做极差分析、绘制因素趋势图、回归分析和规划求解,得出GMA内各结构参数对最大磁场强度和均匀率的影响。结果表明:GMM棒几何参数、GMA组件材料属性、线圈匝数和电流参数在工程设计约束下,影响GMM棒最大磁场强度和均匀率的主要因素为导磁片半径、导磁片厚度和驱动线圈长度。在多因素多目标决策,采用目标规划法,得到GMA最大磁场强度为40.22 kA/m,均匀率为95.17%。In order to enhance the output characteristics of the giant magnetostrictive actuator(GMA)and improve the magnetostrictive performance of the giant magnetostrictive material(GMM)rods under the magnetic field,the GMA magnetic circuit model was established according to Ampere′s loop law,Kirchhoff′s law,and the continuity law of magnetic flux.The relationship between the magnetic field strength and uniformity rate of the centerline of the GMM rods and each structural parameter within the GMA was derived.A simplified two‐dimensional planar model was established in Ansys Maxwell,and the simulation analysis was based on the L_(25)(5^(5))orthogonal test,and the effects of each structural parameter on the maximum magnetic field strength and uniformity rate within the GMA were derived by doing the extreme difference analysis,plotting the trend of factors,regression analysis and planning solution.The results show that the main factors affecting the maximum magnetic field strength and uniformity rate of the GMM bar are the radius of the permeability sheet,the thickness of the permeability sheet and the length of the drive coil under the engineering design constraints of the GMM bar geometry parameters,the material properties of the GMA components,the number of coil turns and the current parameters.Under the multi‐factor multi‐objective decision,the maximum magnetic field strength of GMA is obtained as 40.22 kA/m and the uniformity rate is 95.17%using the objective planning method.

关 键 词：超磁致伸缩驱动器 磁路 因素趋势法 多因素多目标决策 

分 类 号：TH16[机械工程—机械制造及自动化]