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抛光区域几何特征与流场创成关键参数关系

杨航 余玉民 张云飞 黄文 何建国

杨航, 余玉民, 张云飞, 等. 抛光区域几何特征与流场创成关键参数关系[J]. 强激光与粒子束. doi: 10.11884/HPLPB202133.210151
引用本文: 杨航, 余玉民, 张云飞, 等. 抛光区域几何特征与流场创成关键参数关系[J]. 强激光与粒子束. doi: 10.11884/HPLPB202133.210151
Yang Hang, Yu Yumin, Zhang Yunfei, et al. Relationship between the geometric characteristics of the polishing area and the key parameters of the flow field creation[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202133.210151
Citation: Yang Hang, Yu Yumin, Zhang Yunfei, et al. Relationship between the geometric characteristics of the polishing area and the key parameters of the flow field creation[J]. High Power Laser and Particle Beams. doi: 10.11884/HPLPB202133.210151

抛光区域几何特征与流场创成关键参数关系

doi: 10.11884/HPLPB202133.210151
基金项目: 国家“高档数控机床与基础制造装备”科技重大专项“巨型激光装置光学元件超精密制造系统示范工程”课题资助项目(2017ZX04022001);贵州省基础研究计划项目(黔科合基础-ZK[2021]一般272);遵义市科技局科技研发项目(遵市科合HZ字[2020]21号)
详细信息
    作者简介:

    杨航:杨 航(1989—),男,副教授,从事机械装备技术与工艺理论研究

  • 中图分类号: TH164

Relationship between the geometric characteristics of the polishing area and the key parameters of the flow field creation

  • 摘要: 磁流变抛光在其实际工作过程中,抛光区域几何特征的不同将会对流场创成的关键参数产生很大的影响。本文针对此问题建立三维模型与实验仿真展开研究。在研究抛光区域几何特征与流场创成关键参数的关系时,先改变抛光区域形状,观察其对流场创成中剪切应力、压力产生的影响;再控制抛光区域的形状相同时,通过改变抛光区域尺寸大小,观察对流场创成中剪切应力、压力产生的影响。结果表明:当抛光区域形状不同时,抛光区域为凹面时剪切应力最大,抛光区域为凸面时剪切应力最小。当抛光区域形状为凸面时,抛光区域两边的剪切应力随着抛光区域曲率大小增大而增大;当抛光区域形状为凹面,抛光区域两边的剪切应力随着抛光区域曲率大小增大而减小。当抛光区域形状不同时,抛光区域为凹面时压力最大,抛光区域为凸面时压力最小。当抛光区域形状为凸面时,抛光区域处的压力随着抛光区域曲率大小增大而增大;当抛光区域形状为凹面时,抛光区域处的压力随着抛光区域曲率大小增大而减小。
  • 图  1  磁流变抛光示意图

    Figure  1.  Schematic diagram of magnetorheological polishing

    图  2  抛光区域为凹面,凸面、平面时的剪切应力云图

    Figure  2.  Shear stress cloud diagram when the polishing area is concave, convex and flat

    图  3  抛光区域x轴上剪切应力分布曲线图

    Figure  3.  Shear stress distribution curve on the x-axis of the polishing area

    图  4  抛光区域为凸面时曲率大小为80 mm至440 mm的剪切应力云图

    Figure  4.  Shear stress cloud diagram with curvature of 80 mm to 440 mm when the polished area is convex

    图  5  凸面抛光区域x轴上剪切应力分布曲线图

    Figure  5.  Shear stress distribution curve on the x-axis of the polishing area of convex

    图  6  抛光区域为凹面时曲率大小为180 mm至450 mm的剪切应力云图

    Figure  6.  Shear stress cloud diagram with a curvature of 180 mm to 450 mm when the polishing area is concave

    图  7  凹面抛光区域x轴上剪切应力分布曲线图

    Figure  7.  Shear stress distribution curve on the x-axis of the polishing area of concave

    图  8  抛光区域为凹面、凸面、平面的压力云图

    Figure  8.  The pressure cloud diagram of the polishing area is concave, convex, and flat

    图  9  抛光区域x轴上压力分布曲线图

    Figure  9.  Pressure distribution curve on the x-axis of the polishing area

    图  10  抛光区域为凸面时曲率大小80 mm至440 mm的压力云图

    Figure  10.  Pressure cloud diagram with a curvature of 80 mm to 440 mm when the polished area is convex

    图  11  凸面抛光区域x轴上压力分布曲线图

    Figure  11.  Pressure distribution curve on the x-axis of the polishing area of convex

    图  12  抛光区域为凹面时曲率大小180 mm至450 mm压力云图

    Figure  12.  Pressure cloud diagram with curvature of 180 mm to 450 mm when the polishing area is concave

    图  13  凹面抛光区域x轴上压力分布曲线图

    Figure  13.  The pressure distribution curve on the x-axis of the polishing area of concave

    表  1  选用的磁流变抛光工艺参数

    Table  1.   Selected magnetorheological polishing process parameters

    consistency index,
    k/(sn−2/m)
    power law
    index n
    yield stress
    threshold p
    temporary shear
    rate (1/s)
    flow coefficient
    n
    ribbon
    thickness/mm
    ribbon
    width (mm)
    polishing wheel
    speed v/(m/s)
    Inlet and outlet
    pressure/Pa
    59.010.730113861.841000.37551.5154.71101000
    下载: 导出CSV

    表  2  不同形状抛光区域

    Table  2.   Polished areas of different shapes

    No.immersion depth h/mmshape
    11.0concave
    21.0convex
    31.0plane
    下载: 导出CSV

    表  3  选取的抛光区域曲率大小参数

    Table  3.   Curvature parameters of the selected polishing area

    No.immersion
    depth h/mm
    convex
    curvature r/mm
    concave
    curvature r/mm
    11.080180
    21.0120210
    31.0160240
    41.0200270
    51.0240300
    61.0280330
    71.0320360
    81.0360390
    91.0400420
    101.0440450
    下载: 导出CSV

    表  4  不同形状抛光区域

    Table  4.   Polished areas of different shapes

    No.immersion depth h/mmshape
    11.0concave
    21.0convex
    31.0plane
    下载: 导出CSV

    表  5  选取的抛光区域曲率大小参数

    Table  5.   Curvature parameters of the selected polishing area

    No.immersion
    depth h/mm
    convex
    curvature r/mm
    concave
    curvature r/mm
    11.080180
    21.0120210
    31.0160240
    41.0200270
    51.0240300
    61.0280330
    71.0320360
    81.0360390
    91.0400420
    101.0440450
    下载: 导出CSV
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  • 收稿日期:  2021-04-16
  • 修回日期:  2021-08-25
  • 网络出版日期:  2021-09-14

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