文章摘要
贾志慧,武淑琴,王仪明,乔锌,田贝,王世辉.基于红外热成像的印刷橡皮布应变测试[J].包装工程,2017,38(1):67-71.
JIA Zhi-hui,WU Shu-qin,WANG Yi-ming,QIAO Xin,TIAN Bei,WANG Shi-hui.Strain Test of Printing Blanket Based on the Infrared Thermograph[J].Packaging Engineering,2017,38(1):67-71.
基于红外热成像的印刷橡皮布应变测试
Strain Test of Printing Blanket Based on the Infrared Thermograph
投稿时间:2016-07-12  修订日期:2017-01-10
DOI:
中文关键词: 红外热成像  印刷橡皮布  有限元  动态应变
英文关键词: infrared thermograph  printing blanket  finite element  dynamic strain
基金项目:北京市教委科技计划重点项目暨北京市自然科学基金重点项目B类(KZ201510015016);绿色印刷与出版技术协同创新中心项目;北京印刷学院科技类项目校级重点研究项目(Ea201504)
作者单位
贾志慧 北京印刷学院 数字化印刷装备北京市重点实验室北京 102600 
武淑琴 北京印刷学院 数字化印刷装备北京市重点实验室北京 102600 
王仪明 北京印刷学院 数字化印刷装备北京市重点实验室北京 102600 
乔锌 北京印刷学院 数字化印刷装备北京市重点实验室北京 102600 
田贝 北京印刷学院 数字化印刷装备北京市重点实验室北京 102600 
王世辉 北京印刷学院 数字化印刷装备北京市重点实验室北京 102600 
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中文摘要:
      目的 采用红外热成像系统对压印接触区域橡皮布的动态应变进行测试。方法 建立压印接触区域几何模型,结合热弹性效应与热辐射理论分析温度与应变之间的函数关系,并采用红外热像系统测得压印接触区域橡皮布的温度分布情况,最后通过有限元仿真得到橡皮布压痕处的应变云图。结果 沿轴线方向,压印接触区域橡皮布温度、应变均呈不均匀分布,轴端温度高于中间区域温度;轴端应力集中,节点位移大,变形量大,中间区域节点位移小,变形量小,中间区域应变量低于轴端区域应变量。结论 采用红外热成像技术测试印刷过程中橡皮布动态应变的方法是可行的。
英文摘要:
      The work aims to test the dynamic strain of printing blanket at the impression contact region by the infrared thermal imaging system. The geometric model of the impression contact region was built. Combined with thermos-elastic effect and thermal radiation theory, the function relationship between temperature and strain was analyzed. The temperature distribution of blanket at the impression contact region was obtained with the infrared thermal imaging system. Finally, through the finite element simulation, the strain cloud at the blanket impression region was obtained. Along the axial direction, the blanket temperature and strain at the impression contact region were unevenly distributed. The temperature at axis end was higher than that in the middle region. The strain at axis end was intensive. If the nodal displacement was large, the deformation would be large; for the middle region, such case would be just the opposite. The dependant variables of the middle region were lower than those at axis end. The infrared thermal imaging technology used to test the blanket dynamic strain in the printing process is feasible.
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