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铝板结构主动Lamb波扫查合成损伤成像方法

王 晶, 周 波

王 晶, 周 波. 铝板结构主动Lamb波扫查合成损伤成像方法[J]. 无损检测, 2010, 32(4): 246-248.
引用本文: 王 晶, 周 波. 铝板结构主动Lamb波扫查合成损伤成像方法[J]. 无损检测, 2010, 32(4): 246-248.
WANG Jing, ZHOU Bo. Active Lamb Wave Scanning Synthetic Damage Imaging Method for Aluminum Plate[J]. Nondestructive Testing, 2010, 32(4): 246-248.
Citation: WANG Jing, ZHOU Bo. Active Lamb Wave Scanning Synthetic Damage Imaging Method for Aluminum Plate[J]. Nondestructive Testing, 2010, 32(4): 246-248.

铝板结构主动Lamb波扫查合成损伤成像方法

基金项目: 

南京信息职业技术学院科研基金资助(YKJ08-003)

详细信息
    作者简介:

    王 晶(1979-), 女, 工学硕士, 讲师, 研究方向为Lamb波无损检测及信号处理。

  • 中图分类号: TB302.5; TB33; TG115.28

Active Lamb Wave Scanning Synthetic Damage Imaging Method for Aluminum Plate

  • 摘要: 单激励主动Lamb波板结构损伤时间反转成像方法仅对面向激励器的损伤侧敏感, 在实施过程中会存在伪损伤点问题, 影响对损伤的正确评估。研究提出扫查合成损伤成像方法, 首先通过扫查的方法轮流选择压电元件进行激励, 从多个角度实现对损伤的照射, 再将扫查得到的信号进行合成成像, 实现对损伤的监测。在铝板结构上的试验结果表明, 该方法可有效消除监测结果的方向敏感性和伪损伤点, 提高损伤成像监测结果的准确性和稳定性。
    Abstract: Active Lamb wave damage time reversal imaging method with single actuator is only sensitive to the direction faced to the actuator. It will bring false damage points and influence the damage evaluation. Scanning synthetic damage imaging method was proposed. Piezoelectric element was selected one by one to act as the actuator. It could illuminate the damage from multi directions. All sensing signals were synthetically used to image and monitor the damage. Experiment on the aluminum plate structure illustrated that the method could not only eliminate the false damage points and directionality, but also improve the veracity and stability.
  • [1] Boller C. Next generation structural health monitoring and its integration into aircraft design[J]. International Journal of Systems Science, 2000, 31(11): 1333-1349.
    [2] Yuan Shenfang, Wang Lei, Shi Lihua. On-line damage monitoring in composite structures[J]. Journal of Vibration and Acoustics, 2003, 125: 178-186.
    [3] 陈勇, 熊克, 王鑫伟, 等.飞行器智能结构系统研究进展与关键问题[J].航空学报, 2004, 25(1): 21-25.
    [4] 王杜, 郑祥明, 唐正连, 等.兰姆波在薄钢板无损检测中的应用研究[J].无损检测, 2007, 29(4): 193-196.
    [5] 郑祥明, 杨齐, 郝国法, 等.金属薄板中缝类缺陷的兰姆波检测[J].无损检测, 2007, 29(11): 630-633.
    [6] Wang L, Yuan F G. Damage identification in a composite plate using prestack reverse-time migration technique[J]. Structural Health Monitoring, 2005, 4(3): 0195-0211.
    [7] Chun H Wang, James T Rose, Chang Fu-Kuo. A synthetic time-reversal imaging method for structural health monitoring[J]. Smart Material and Structure, 2004, 13: 415-423.
    [8] Ros K Ing, Mathias Fink. Time reversed Lamb waves [J]. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1998, 45(4): 1032-1043.
    [9] 王强, 袁慎芳.主动Lamb波结构健康监测中信号增强与损伤成像方法[J].航空学报, 2008, 29(4): 1061-1067.
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出版历程
  • 收稿日期:  2009-05-24
  • 刊出日期:  2010-04-09

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