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首页> 外文期刊>Industrial Informatics, IEEE Transactions on >Development of a Fast Numerical Simulator for Infrared Thermography Testing Signals of Delamination Defect in a Multilayered Plate
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Development of a Fast Numerical Simulator for Infrared Thermography Testing Signals of Delamination Defect in a Multilayered Plate

机译：快速数字模拟器的红外热成像测试多层板中分层缺陷信号的开发

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摘要

In this paper, a very fast numerical solver for simulating signal perturbation of infrared thermography testing (IRT) due to delamination defects was developed by using the database of unflawed IRT information. First, the IRT signal simulation method of the frequency-domain summation scheme proposed by authors is briefly introduced as the bases of the present fast-forward solver. Second, a database-type fast numerical scheme for rapid simulation of single-frequency IRT harmonic signals was proposed to enhance the efficiency of the IRT simulation without worsening the numerical precision. In addition, in order to efficiently implement the proposed fast solver for simulation of delamination defects in a multilayered plate, a two-dimensional (2-D) shifting symmetry strategy was applied to reduce the computational burden for the construction of the unflawed database. Based on the proposed scheme, a fast-forward numerical code was developed for simulation of IRT signal perturbation due to the delamination defect. The validity of the proposed scheme and the corresponding numerical code was verified by comparing its results with those of a full FEM code and experiments. It was demonstrated that the database-type fast scheme can significantly reduce the simulation time for the IRT signal perturbation due to a delamination defect but keep the same simulation accuracy with that of the full FEM code.
机译：本文利用无缺陷的IRT信息数据库，开发了一种非常快速的数值解算器，用于模拟由于分层缺陷而引起的红外热成像测试（IRT）的信号扰动。首先，简要介绍了作者提出的频域求和方案的IRT信号仿真方法，作为当前快进求解器的基础。其次，提出了一种用于快速仿真单频IRT谐波信号的数据库类型快速数值方案，以提高IRT仿真的效率，而又不降低数值精度。此外，为了有效地实现所提出的用于求解多层板中分层缺陷的快速求解器，应用了二维（2-D）移位对称策略来减少无损数据库构建的计算负担。基于所提出的方案，开发了用于模拟由于分层缺陷而引起的IRT信号扰动的快进数字代码。通过将其结果与完整的FEM代码和实验结果进行比较，验证了所提方案和相应数字代码的有效性。结果表明，由于分层缺陷，数据库类型的快速方案可以显着减少IRT信号扰动的仿真时间，但保持与完整FEM代码相同的仿真精度。

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  • 来源
    《Industrial Informatics, IEEE Transactions on》 |2018年第12期|5544-5552|共9页
  • 作者

    Haochen Liu; Shejuan Xie; Cuixiang Pei; Jinxing Qiu; Yong Li; Zhenmao Chen;

  • 作者单位

    State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an, China;

    State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an, China;

    State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an, China;

    State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an, China;

    State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an, China;

    State Key Laboratory for Strength and Vibration of Mechanical Structures, School of Aerospace, Xi'an Jiaotong University, Xi'an, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Delamination; Numerical models; Computational modeling; Mathematical model; Harmonic analysis; Databases; Inspection;

    机译：分层;数值模型;计算模型;数学模型;谐波分析;数据库;检查;

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