摘要
针对磁流变抛光设备中磁路的结构特点,利用简化的二维模型,基于有限元软件ANSYS,分析了磁路相关参数对抛光区域磁感应强度和分布的影响,具体包括磁路所用导磁材料的磁导率、饱和磁感应强度、气隙长度、磁轭截面积、磁极形状和线圈冷却结构等因素。结果表明,对类似结构的磁路设计,应参考以下几条原则:选用磁导率和饱和磁感应强度高的材料,气隙长度对磁感应强度与分布均有影响,而磁轭截面只需保证材料工作在高导磁线性区即可,磁极形状和线圈冷却结构对抛光区域磁感应强度影响可忽略。
According to the structure distinctiveness, the magnetic circuit in MRF machine is simplified to a 2D model. With the FEM software ANSYS, the influence of related circuit factors on the magnetic induction and its distribution in polishing area were analyzed. The factors include permeability and saturate magnetic flux density of the magnetic material in the circuit, gap, area of yoke, poles shape and the coil＆#39;s cool structure. As a result, some rules should be followed in similar circuit structure and application. Firstly, the material with high permeability and saturate magnetic flux density should be chosen in the magnetic circuit. The gap should be designed according to the application because it affects both the intensity and its distribution. The selection of yoke area needs only ensures its operation on the high permeability section on the magnetization curve of material. The poles shape and the cool structure have almost no effect on the magnetic field in finishing area.
出处
《磁性材料及器件》
CAS
2015年第6期50-53,共4页
Journal of Magnetic Materials and Devices
基金
国家科技重大专项(2013ZX04006011)
关键词
磁路
磁感应强度
气隙
磁轭
磁极
磁导率
magnetic circuit
magnetic induction
gap
yoke
pole
permeability
