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钛合金蜂窝结构蒙皮脱焊缺陷锁相红外热成像检测

周正干 贺鹏飞 赵翰学 范瑾

周正干, 贺鹏飞, 赵翰学, 等 . 钛合金蜂窝结构蒙皮脱焊缺陷锁相红外热成像检测[J]. 北京航空航天大学学报, 2016, 42(9): 1795-1802. doi: 10.13700/j.bh.1001-5965.2015.0569
引用本文: 周正干, 贺鹏飞, 赵翰学, 等 . 钛合金蜂窝结构蒙皮脱焊缺陷锁相红外热成像检测[J]. 北京航空航天大学学报, 2016, 42(9): 1795-1802. doi: 10.13700/j.bh.1001-5965.2015.0569
ZHOU Zhenggan, HE Pengfei, ZHAO Hanxue, et al. Detection of skin desoldering defect in Ti-alloy honeycomb structure using lock-in infrared thermography test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(9): 1795-1802. doi: 10.13700/j.bh.1001-5965.2015.0569(in Chinese)
Citation: ZHOU Zhenggan, HE Pengfei, ZHAO Hanxue, et al. Detection of skin desoldering defect in Ti-alloy honeycomb structure using lock-in infrared thermography test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(9): 1795-1802. doi: 10.13700/j.bh.1001-5965.2015.0569(in Chinese)

钛合金蜂窝结构蒙皮脱焊缺陷锁相红外热成像检测

doi: 10.13700/j.bh.1001-5965.2015.0569
基金项目: 中央高校基本科研业务费专项资金(50100002015107039)
详细信息
    作者简介:

    周正干,男,博士,教授,博士生导师。主要研究方向:超声及红外无损检测。Tel.:010-82338668,E-mail:zzhenggan@buaa.edu.cn

    通讯作者:

    周正干,Tel.:010-82338668,E-mail:zzhenggan@buaa.edu.cn

  • 中图分类号: V262.7;TG115.28

Detection of skin desoldering defect in Ti-alloy honeycomb structure using lock-in infrared thermography test

Funds: the Fundamental Research Funds for the Central Universities (50100002015107039)
  • 摘要: 蒙皮脱焊是钛合金蜂窝结构制造和服役过程中最常见的缺陷类型。受钛合金材料热导率低的影响,钛合金蜂窝结构中蒙皮越厚,红外热成像检测时其表面反映脱焊缺陷信息的温度差异信号就越弱,检测难度就越大。针对这一问题,研究了不同蒙皮厚度钛合金蜂窝结构锁相红外热成像检测时调制频率的选取范围。建立了钛合金蜂窝结构锁相红外热成像检测有限元模型,分析了蒙皮表面温度在调制热流作用下的变化历程,基于相关算法提取了蒙皮表面对应缺陷区和非缺陷区的相位差,分析了相位差与调制频率、蒙皮厚度的关系。利用锁相红外热成像检测系统对预制脱焊缺陷的蜂窝试件进行了实验研究,获得了缺陷区与非缺陷区信号相位差与调制频率的关系。研究结果表明,针对蒙皮厚度为0.6~2.0 mm的钛合金蜂窝结构,采用0.04~0.10 Hz的调制频率能够获得最佳检测结果。研究结果为钛合金蜂窝结构实际检测提供了工艺指导。

     

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出版历程
  • 收稿日期:  2015-09-02
  • 刊出日期:  2016-09-20

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