基于永磁体的磁流变抛光励磁装置设计与仿真  

Design and simulation of magnetorheological polishing excitation device based on permanent magnet

作　　者：曹顺涛 陈观慈[1] 李明春 CAO Shuntao;CHEN Guanci;LI Mingchun(College of Mechanical and Electrical Engineering,Kunming University of Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学机电工程学院,昆明650500

出　　处：《金刚石与磨料磨具工程》2023年第4期504-513,共10页Diamond & Abrasives Engineering

摘　　要：励磁装置作为磁流变抛光设备的核心部件,其能否产生稳定均匀的高梯度磁场,是决定磁流变抛光成功的关键因素。采用扇形永磁体设计磁流变抛光轮励磁装置,并运用ANSYS Electronics Desktop等软件从永磁体数量、充磁方式、排布方式、气隙宽度等方面对励磁装置进行仿真分析,得到不同工况下的磁感应线及磁感应强度分布。结果表明:当气隙宽度为4 mm时,采用单一永磁体轴向充磁产生的磁感应强度最大,可达358.4 mT,理论上可在抛光轮表面形成宽为26 mm、高为6.0 mm的抛光缎带。As the core component of magnetorheological polishing equipment,the key factor determining the success of magnetorheological polishing is whether the excitation device can generate a stable and uniform high gradient magnetic field.The sector permanent magnet was used to design the excitation device of the magnetorheological polishing wheel.The ANSYS Electronics Desktop and other softwares were used to simulate and analyze the excitation device various aspects,including the number of permanent magnets,magnetization modes,arrangement modes,and air gap widths.The magnetic induction lines and magnetic induction intensity distribution under different working conditions were obtained.The results show that when the air gap width is 4 mm,the magnetic induction intensity produced by axial magnetization of a single permanent magnet is the largest,reaching 358.4 mT.Theoretically,a polishing ribbon with a width of 26 mm and a height of 6.0 mm can be formed on the surface of the polishing wheel.

关 键 词：永磁体 磁流变抛光 励磁装置 磁场 

分 类 号：TG58[金属学及工艺—金属切削加工及机床]