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基于永磁体的磁流变抛光励磁装置设计与仿真

曹顺涛 陈观慈 李明春

曹顺涛, 陈观慈, 李明春. 基于永磁体的磁流变抛光励磁装置设计与仿真[J]. 金刚石与磨料磨具工程, 2023, 43(4): 504-513. doi: 10.13394/j.cnki.jgszz.2022.0195
引用本文: 曹顺涛, 陈观慈, 李明春. 基于永磁体的磁流变抛光励磁装置设计与仿真[J]. 金刚石与磨料磨具工程, 2023, 43(4): 504-513. doi: 10.13394/j.cnki.jgszz.2022.0195
CAO Shuntao, CHEN Guanci, LI Mingchun. Design and simulation of magnetorheological polishing excitation device based on permanent magnet[J]. Diamond & Abrasives Engineering, 2023, 43(4): 504-513. doi: 10.13394/j.cnki.jgszz.2022.0195
Citation: CAO Shuntao, CHEN Guanci, LI Mingchun. Design and simulation of magnetorheological polishing excitation device based on permanent magnet[J]. Diamond & Abrasives Engineering, 2023, 43(4): 504-513. doi: 10.13394/j.cnki.jgszz.2022.0195

基于永磁体的磁流变抛光励磁装置设计与仿真

doi: 10.13394/j.cnki.jgszz.2022.0195
详细信息
    作者简介:

    陈观慈,男,1977年生,教授、博士生导师。主要研究方向:摩擦磨损与控制。E-mail: gcchen@kmust.edu.cn

  • 中图分类号: TG58

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

  • 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。

     

  • 图  1  磁流变抛光轮

    Figure  1.  Magnetorheological polishing wheel

    图  2  励磁装置

    Figure  2.  Excitation device

    图  3  励磁装置坐标系

    Figure  3.  Excitation device coordinate system

    图  4  磁感应线分布示意图

    Figure  4.  Schematic diagram of magnetic induction line distribution

    图  5  扇形永磁体充磁方式

    Figure  5.  Magnetization modes of sector permanent magnet

    图  6  不同永磁体数量及排布方式的励磁装置模型

    Figure  6.  Excitation device models with different permanent magnet quantities and arrangements

    图  7  各仿真组的磁感应线分布

    Figure  7.  Distribution of magnetic induction lines of each simulation group

    图  8  各仿真组的磁感应强度分布云图

    Figure  8.  Cloud charts of magnetic induction intensity distribution of each simulation group

    图  9  各仿真组的磁感应强度分布曲线

    Figure  9.  Distribution curves of magnetic induction intensity of each simulation group

    图  10  气隙为2 mm和6 mm时的磁感应强度分布云图

    Figure  10.  Cloud charts of magnetic induction induction intensity distribution with air gap of 2 mm and 6 mm

    图  11  不同气隙大小时的磁感应强度分布曲线

    Figure  11.  Distribution corves of magnetic induction intensity at different air gap sizes

    表  1  钕铁硼N50的性能参数

    Table  1.   Performance parameters of NdFeB N50

    参数数值
    剩磁感应强度 Br / T1.41~1.45
    矫顽力 Hcb / (kA·m−1)828~907
    内禀矫顽力 Hcj / (kA·m−1)≥876
    最大磁能积 (BH)max / (kJ·m−3)382~398
    最高工作温度 Tw / ℃≤70
    下载: 导出CSV

    表  2  仿真方案

    Table  2.   Simulation schemes

    仿真编号磁体数量 n / 个充磁方式磁极排列分布
    11轴向充磁NS
    22轴向充磁SNSN
    32轴向充磁SNNS
    42径向辐射NS
    52径向平行NS
    下载: 导出CSV

    表  3  仿真结果汇总

    Table  3.   Simulation results summary

    仿真编号最大磁感应强度
    Bmax / mT
    能否形成抛光头
    1358.4形成宽为26 mm,峰值高度为
    6.0 mm的抛光头
    2276.8形成宽为18 mm,峰值高度为
    4.0 mm的抛光头
    3 11.0无抛光头形成
    4112.5无抛光头形成
    5102.7无抛光头形成
    下载: 导出CSV
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  • 收稿日期:  2022-11-13
  • 修回日期:  2022-12-12
  • 录用日期:  2022-12-23
  • 刊出日期:  2023-08-30

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