基于红外热波技术的起重机械金属裂纹缺陷仿真
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摘要
起重机械金属结构裂纹缺陷定性分析是脉冲红外热波检测技术的研究新方向。利用Ansys Workbench基于热灯激励传热理论进行有限元模拟仿真,分析脉冲激励参数及缺陷本体对表面温差的影响规律,给出了脉冲激励源的选取建议优化以及检测影响因素分析。
Qualitative analysis of crack defects in metal structures of hoisting machinery is a new research direction of pulsed infrared heat wave detection technology. The finite element simulation is carried out by using Ansys Workbench based on the heat transfer theory of heat lamp excitation. the influence law of pulse excitation parameters and defect body on surface temperature difference is analyzed. The selection and optimization of pulse excitation source and the analysis of detection influence factors are presented.
Qualitative analysis of crack defects in metal structures of hoisting machinery is a new research direction of pulsed infrared heat wave detection technology. The finite element simulation is carried out by using Ansys Workbench based on the heat transfer theory of heat lamp excitation. the influence law of pulse excitation parameters and defect body on surface temperature difference is analyzed. The selection and optimization of pulse excitation source and the analysis of detection influence factors are presented.
引文
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[2]江海军,陈力.闪光灯热激励红外热波成像无损检测设备及应用[J].无损检测,2017,39(9):57-60.
[3]刘慧龙,刘志平,陈逸凡,等.起重机金属结构焊缝表面裂纹红外热波检测仿真研究.武汉理工大学学报:交通科学与工程版[J].2014,38(1):152-156.
[4]杨正伟,张炜,田干,等.小曲率壳状粘接结构脱粘缺陷热波定量检测[J].材料工程,2010,2010(12):39-43.
[5]黄厚诚.热传导问题的有限元分析[M].北京:科学出版社,2011.