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基于多尺度模拟的橡胶/钢帘线复合材料辐射散热行为机制研究

周家智 肖慧萍 谢小林 周志嵩 安林 李文博

周家智, 肖慧萍, 谢小林, 等. 基于多尺度模拟的橡胶/钢帘线复合材料辐射散热行为机制研究[J]. 复合材料学报, 2024, 42(0): 1-15.
引用本文: 周家智, 肖慧萍, 谢小林, 等. 基于多尺度模拟的橡胶/钢帘线复合材料辐射散热行为机制研究[J]. 复合材料学报, 2024, 42(0): 1-15.
ZHOU Jiazhi, XIAO Huiping, XIE Xiaolin, et al. Study on the mechanism of radiation heat dissipation behavior of rubber/steel cord composites based on multi-scale simulation[J]. Acta Materiae Compositae Sinica.
Citation: ZHOU Jiazhi, XIAO Huiping, XIE Xiaolin, et al. Study on the mechanism of radiation heat dissipation behavior of rubber/steel cord composites based on multi-scale simulation[J]. Acta Materiae Compositae Sinica.

基于多尺度模拟的橡胶/钢帘线复合材料辐射散热行为机制研究

基金项目: 国家自然科学基金 (52063021);江西省重点研发计划项目 (20224BBE51049)
详细信息
    通讯作者:

    李文博,博士,讲师,研究方向为橡胶制品设计与仿真分析 E-mail: 645504616@qq.com

  • 中图分类号: TB333

Study on the mechanism of radiation heat dissipation behavior of rubber/steel cord composites based on multi-scale simulation

Funds: National Natural Science Foundation of China (52063021); Jiangxi province key research and development program(20224BBE51049)
  • 摘要: 橡胶/钢帘线复合材料的传热与温度场分析对橡胶制品的硫化成型、热氧老化、热疲劳寿命研究具有重要意义。本文基于多尺度传热模型对不同钢帘线占比、排列角度和温升工况下的橡胶/钢帘线复合材料传热和散热机制进行研究,并通过实验验证。结果表明,橡胶/钢帘线复合材料呈现明显的各向异性传热行为,传热界面的热流聚集效应会加速热量的层间扩散,使温度分布更均匀。模拟计算得到的辐射散热发射率高达0.95,且随着钢帘线占比增大和温度升高,辐射散热行为越明显。对比串并联传热模型,多尺度传热模型预测误差从10.1%减小到2.5%。

     

  • 图  1  橡胶/钢帘线复合材料试样制备流程

    Figure  1.  Specimen preparation process of rubber/steel cord composites

    图  2  橡胶/钢帘线复合材传热分析的技术路线

    Figure  2.  Technical route for thermal analysis of rubber/steel cord composites

    图  3  橡胶/钢帘线复合材料传热实验平台示意图

    Figure  3.  Schematic diagram of the experimental platform for heat transfer of rubber/steel cord composites

    图  4  橡胶/钢帘线复合材料热扩散测试结果:(a)测温点;(b)温升历程曲线;(c)顶面和侧面红外热成像云图

    Figure  4.  Thermal diffusion test results of rubber/steel cord composites: (a) Temperature measurement points; (b) Temperature rise history curves;(c) Infrared thermography cloud maps of top and side surfaces

    图  5  (a) 橡胶/钢帘线复合材料红外热成像测试结果校正;(b)校正结果与热电偶测试结果对比

    Figure  5.  (a) Calibration of IR thermography test results of rubber/steel cord composites; (b) Comparison of calibration results with thermocouple test results

    图  6  热台温度对橡胶/钢帘线复合材料温升的影响:(a)顶面中心点温度历程图;(b)顶面边缘点温度历程图;(c)侧面中心点温度历程图;(d)顶部中心点与顶面边缘点温度差值图

    Figure  6.  Effect of hot bench temperature on temperature rise of rubber/steel cord composites: (a) Plot of temperature history at the top center point; (b) Plot of temperature history at the top edge point; (c) Plot of temperature history at the side center point; (d) Plot of temperature difference between the top center point and the top edge point

    图  7  140℃条件下不同钢帘线占比橡胶/钢帘线复合材料温升影响研究:(a)顶面中心点温度历程图;(b)顶面边缘点温度历程图;(c)侧面中心点温度历程图;(d)顶面中心点与顶面边缘点温度差值图

    Figure  7.  Study on the effect of temperature rise of rubber/steel cord composites with different steel cord ratios at 140℃: (a) Temperature history of top center point; (b) Temperature history of top edge point; (c) Temperature history of side center point; (d) Temperature difference between top center point and top edge point

    图  8  不同接触热阻下的橡胶/钢帘线复合材料热导率

    Figure  8.  Thermal conductivity of rubber/steel cord composites with different contact thermal resistance

    图  9  橡胶/钢帘线复合材料对流换热CFD模型示意图

    Figure  9.  Schematic diagram of CFD model for convective heat transfer of rubber/steel cord composites

    图  10  (a)橡胶/钢帘线复合材料CFD传热模型与等效热边界传热模型温度历程对比;(b)橡胶/钢帘线复合材料实验与仿真结果温度历程对比

    Figure  10.  (a) Comparison of CFD heat transfer model and equivalent thermal boundary heat transfer model temperature history for rubber/steel cord composites; (b) Comparison of temperature history between experimental and simulation results for rubber/steel cord composites

    图  11  橡胶/钢帘线复合材料不同发射率温升历程仿真结果与实验对比:(a)顶面中心点;(b)顶面边缘点;(c)侧面中心点;(d)拟合曲线

    Figure  11.  Simulation results and experimental comparison of temperature rise history of rubber/steel cord composites with different emissivity: (a) Top center point; (b) Top edge point; (c) Side center point; (d) Fitted curve

    图  12  0.95发射率时不同钢帘线占比的复合材料温升历程仿真与实验对比:(a)顶面中心点;(b)顶面边缘点;(c)侧面中心

    Figure  12.  Simulation and experimental comparison of temperature rise histories of composites with different steel cord percentages at 0.95 emissivity: (a) Top center point; (b) Top edge point; (c) Side center

    图  13  橡胶/钢帘线复合材料顶面中心点稳态温度值:(a)不同加热温度;(b)不同钢帘线排布

    Figure  13.  Steady state temperature values at the center point of the top surface of rubber/steel cord composites: (a) Different heating temperatures; (b) Different steel cord arrangements

    图  14  橡胶/钢帘线复合材料多尺度模型与串并联模型对比

    Figure  14.  Comparison of multiscale model and series-parallel model of rubber/steel cord composites

    图  15  橡胶/钢帘线复合材料纵向切面温度云图和热流密度云图

    Figure  15.  Longitudinal section temperature contour plot and heat flow density contour plot of rubber/steel cord composites

    图  16  橡胶/钢帘线复合材料横向切面温度云图和热流密度云图

    Figure  16.  Temperature contour plot and heat flow density contour plot of rubber/steel cord composites in transverse sections

    图  17  不同因素对橡胶/钢帘线复合材料辐射散热的影响:(a)发射率的影响;(b)传热时间的影响;(c)传热温度的影响;(d)钢帘线占比的影响

    Figure  17.  Effect of different factors on radiative heat dissipation of rubber/steel cord composites: (a) Effect of emissivity; (b) Effect of heat transfer time; (c) Effect of heat transfer temperature; (d) Effect of steel cord percentage

    表  1  橡胶配方

    Table  1.   Rubber formulations

    Raw materialParts per hundreds of rubber
    EPDM4045100
    NR30
    ZnO10
    C18H36O21
    N22040
    Paraffin oil14
    Coumarone-indene resin5
    PCP4
    C6H12N2S40.5
    S0.5
    Bonding agent5
    Teen-ager RD1
    下载: 导出CSV

    表  2  橡胶/钢帘线复合材料结构参数

    Table  2.   Structural parameters of rubber/steel cord composites

    Steel cord spacing/mmPercentage of
    steel cord /%
    Laminate
    angle /(°)
    Pure rubber--
    51.9
    0/30/45/90
    42.4
    3.62.9
    110.9
    下载: 导出CSV

    表  3  橡胶/钢帘线复合材料传热测试实验方案

    Table  3.   Experimental program for heat transfer testing of rubber/steel cord composites

    Steel cord
    spacing/mm
    Percentage of steel
    cord/%
    Laminate
    angle/(°)
    Heating pad
    temperature /℃
    Environmental
    temperature /℃
    3.6 2.9 90 100 30
    3.6 2.9 90 120 30
    3.6 2.9 90 140 30
    3.6 2.9 90 160 30
    3.6 2.9 90 180 30
    Pure rubber 0 - 140 30
    4 2.4 90 140 30
    5 1.9 90 140 30
    1 10.9 90 140 30
    3.6 2.9 0 140 30
    3.6 2.9 30 140 30
    3.6 2.9 45 140 30
    下载: 导出CSV

    表  4  多尺度模型材料热物性参数

    Table  4.   Thermo-physical property parameters of materials for multi-scale modeling

    Material
    type
    Thermal conductivity/
    (mW·(mm·℃)-1)
    Density/
    (kg·m−3)
    Specific heat/
    (J·(kg·℃)−1)
    Rubber
    0.21 1200 1503
    Steel cord 70 7810 540
    下载: 导出CSV
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  • 收稿日期:  2023-11-30
  • 修回日期:  2024-01-15
  • 录用日期:  2024-01-28
  • 网络出版日期:  2024-03-12

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