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超声振动磨削CFRP温度场的有限元仿真

刘军 范宝朋 陈燕 梁宇红

刘军,范宝朋,陈燕, 等. 超声振动磨削CFRP温度场的有限元仿真[J]. 机械科学与技术,2020,39(6):821-828 doi: 10.13433/j.cnki.1003-8728.20190217
引用本文: 刘军,范宝朋,陈燕, 等. 超声振动磨削CFRP温度场的有限元仿真[J]. 机械科学与技术,2020,39(6):821-828 doi: 10.13433/j.cnki.1003-8728.20190217
Liu Jun, Fan Baopeng, Chen Yan, Liang Yuhong. FEM Simulation of Temperature Field in Ultrasonic Vibration Grinding of CFRP[J]. Mechanical Science and Technology for Aerospace Engineering, 2020, 39(6): 821-828. doi: 10.13433/j.cnki.1003-8728.20190217
Citation: Liu Jun, Fan Baopeng, Chen Yan, Liang Yuhong. FEM Simulation of Temperature Field in Ultrasonic Vibration Grinding of CFRP[J]. Mechanical Science and Technology for Aerospace Engineering, 2020, 39(6): 821-828. doi: 10.13433/j.cnki.1003-8728.20190217

超声振动磨削CFRP温度场的有限元仿真

doi: 10.13433/j.cnki.1003-8728.20190217
基金项目: 国家自然科学基金项目( 51375234)与校企合作项目(COMAC-SFGS-2018-2921)资助
详细信息
    作者简介:

    刘军(1984−),高级工程师,硕士,研究方向为复合材料制造技术,liujun@comac.cc

    通讯作者:

    陈燕,教授,博士生导师,ninaych@nuaa.edu.cn

  • 中图分类号: TG58

FEM Simulation of Temperature Field in Ultrasonic Vibration Grinding of CFRP

  • 摘要: 超声振动磨削时的高温易导致碳纤维增强树脂基复合材料(CFRP)的热损伤,为了分析超声振动磨削CFRP过程中的温度问题,借助有限元的方法对声振动磨削CFRP温度场进行了仿真。首先利用半人工热电偶在线测量了磨削温度,通过试验与仿真相结合的方法研究了传入0、45°、90°和135°纤维取向的单向CFRP中的热分配比。随后,根据超声振动磨削各单向CFRP的热分配比,建立了超声振动磨削多向CFRP磨削温度场仿真模型。最后,通过超声振动磨削试验对有限元模型的有效性进行了验证。
  • 图  1  试验装置及刀具

    图  2  CFRP纤维方向角

    图  3  工件建模与网格划分

    图  4  多向CFRP层合板建模与网格划分

    图  5  多向CFRP层合板施加热源及对流换热模型

    图  6  各纤维取向的单向CFRP层合板温度场分布情况

    图  7  多向CFRP层合板节点温度随时间变化趋势图

    图  8  刀具磨削工件阶段温度场分布

    表  1  超声振动磨削各纤维取向单向CFRP层合板磨削力及温度数据

    序号转速
    n/(r·min−1)
    进给速度vw/(mm·min−1)磨削深度ap/mm045°90°135°
    FX/NT/℃FX/NT/℃FX/NT/℃FX/NT/℃
    1 8 000 100 0.1 4.767 47.18 7.283 70.54 8.258 72.78 7.960 73.58
    2 8 000 200 0.5 20.878 92.38 30.932 104.57 30.075 112.94 25.029 100.86
    3 8 000 300 1.0 30.863 150.97 51.737 159.80 47.805 167.93 39.458 154.80
    4 8 000 400 1.5 35.751 177.69 60.418 194.67 55.457 198.96 44.756 199.39
    5 12 000 100 0.5 15.512 122.94 20.571 126.79 18.534 127.90 16.981 128.80
    6 12 000 200 0.1 4.080 51.51 7.299 83.48 6.957 85.16 6.942 88.70
    7 12 000 300 1.5 34.229 198.53 41.299 212.21 40.404 220.44 34.490 207.90
    8 12 000 400 1.0 32.757 168.50 41.063 177.85 38.348 195.12 31.651 183.67
    9 16 000 100 1.0 17.568 196.88 25.034 202.21 26.105 220.79 25.552 218.96
    10 16 000 200 1.5 25.194 211.32 35.483 228.35 37.730 247.29 33.996 248.96
    11 16 000 300 0.1 4.230 63.22 7.290 103.36 6.498 110.49 6.310 115.15
    12 16 000 400 0.5 17.171 143.68 27.086 165.28 25.492 185.80 22.769 156.17
    13 20 000 100 1.5 16.977 211.57 24.044 243.18 25.015 253.29 22.215 248.36
    14 20 000 200 1.0 17.357 214.64 26.618 233.58 26.433 245.22 20.106 235.20
    15 20 000 300 0.5 13.318 165.05 18.344 182.23 20.520 197.02 16.999 191.61
    16 20 000 400 0.1 3.729 57.57 4.988 91.96 4.908 95.37 4.643 92.05
    下载: 导出CSV

    表  2  工件材料及金刚石磨粒热特性参数

    类型导热系数k/(W·(m·K)1)密度
    ρ/(kg·m−3)
    比热容c/(J·(kg·K)−1)
    纤维 轴向9.60,径向0.96 1 800 753.62
    树脂 0.20 1 250 1 884.00
    金刚石 2 000.00 3 500 500.00
    下载: 导出CSV

    表  3  超声振动磨削0、45°、90°与135°纤维取向单向CFRP层合板热分配比

    序号主轴转速
    n/(r·min−1)
    进给速度
    vw/(mm·min−1)
    磨削深度
    ap//mm
    0方向
    R0/%
    45°方向
    R45/%
    90°方向
    R90/%
    135°方向
    R135/%
    1 8 000 100 0.1 0.891 1.975 2.526 1.895
    2 8 000 200 0.5 0.723 1.442 3.440 1.572
    3 8 000 300 1.0 1.435 2.091 3.247 2.715
    4 8 000 400 1.5 1.829 2.885 4.350 3.997
    5 12 000 100 0.5 0.953 1.368 2.003 1.689
    6 12 000 200 0.1 0.975 2.188 3.004 2.401
    7 12 000 300 1.5 1.288 2.692 3.888 3.144
    8 12 000 400 1.0 1.146 2.293 3.694 3.088
    9 16 000 100 1.0 1.204 1.703 2.382 1.825
    10 16 000 200 1.5 1.210 2.095 2.901 2.402
    11 16 000 300 0.1 1.136 2.603 4.158 3.358
    12 16 000 400 0.5 1.185 2.011 3.310 2.237
    13 20 000 100 1.5 1.151 1.919 2.570 2.123
    14 20 000 200 1.0 1.328 2.070 2.958 2.761
    15 20 000 300 0.5 1.311 2.319 3.075 2.651
    16 20 000 400 0.1 0.936 2.600 4.162 3.177
    下载: 导出CSV
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  • 收稿日期:  2019-04-09
  • 刊出日期:  2020-06-05

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