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Study of the Metal Micro Crack Location Based on Vibro-acoustic Modulation and Time Reversal Method |
HU Liu-chen,ZHENG Hui-feng,FANG Piao-piao,WANG Yue-bing,CAO Wen-xu |
China Jiliang University, Hangzhou, Zhejiang 310018, China |
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Abstract In order to overcome the shortage that traditional linear ultrasonic testing is insensitive to the closed cracks, the nonlinear ultrasonic testing research based on vibro-acoustic modulation(VAM) was studied and the time reversal(TR) method was used to focus nonlinear signal. Finite element software ABAQUS was used to simulate micro crack detection of aluminium tube based on VAM, the first order sideband of VAM signal was extracted by finite impulse response(FIR) filter and was reversed in the time domain. Then reloaded TR signal on the nondestructive tube model and carried out the time reversing focusing simulation with ABAQUS. The results show that the first order sideband is able to focus around original crack location, the diametrical arrangement of TR signals load position is superior to axial arrangement, and crack dimension and location can be measured base on the time reversal focusing imaging.
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Received: 11 August 2016
Published: 27 September 2017
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Corresponding Authors:
Hui-feng ZHENG
E-mail: zjufighter@cjlu.edu.cn
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[1]郑慧峰,喻桑桑,王月兵,等. 基于经验模态分解和奇异值分解的振动声调制信号分析方法研究[J].计量学报,2016,37(4):398-401.
[2]方漂漂,郑慧峰,喻桑桑,等. 基于振动声调制的金属微裂纹检测方法[J]. 中国机械工程,2016,27(11):1497-1501.
[3]焦敬品, 何存富, 吴斌,等. 接触缺陷的振动调制超声导波检测技术研究[J]. 声学学报, 2009, 34(3):242-248.
[4]宫改云, 姚文斌, 潘翔. 被动时反与自适应均衡相联合的水声通信研究[J]. 声学技术, 2010, 29(2):129-134.
[5]Draeger C, Fink M. One-channel time-reversal in chaotic cavities: Theoretical limits[J]. Journal of the Acoustical Society of America, 1999, 105(2): 611-617.
[6]Draeger C, Aime J C, Fink M. One-channel time-reversal in chaotic cavities: Experimental results[J]. Journal of the Acoustical Society of America, 1999, 105(2): 618-625.
[7]Le Bas P Y, Van Den Abeele K, Santos S D, et al. Experimental analysis for nonlinear time reversal imaging of damaged materials [C]// Proceedings of the 9th European Conference on Non-Destructive Testing, Berlin, Germany, 2006:1-12.
[8]汪素萍, 宫先仪, 杜栓平. 主动时间反转聚焦技术 [J]. 声学与电子工程, 2005(3):12-14.
[9]李超. 用时间反转处理实现水中小目标探测的空 —时逆滤波[D]. 杭州:浙江大学, 2006.
[10]陈妍. 材料缺陷的超声波时间反转定位方法研究 [D]. 哈尔滨:哈尔滨理工大学, 2009.
[11]张碧星, 陆铭慧, 汪承灏. 用时间反转法在水下波 导介质中实现自适应聚焦的研究[J]. 声学学报, 2002,27(6):541-548.
[12]胡海峰. 板状金属结构健康监测的非线性超声理论与关键技术研究[D]. 长沙:国防科学技术大学, 2011.
[13]徐庆龙. 基于时间反转Lamb波的典型结构检测技 术研究[D]. 北京:北京工业大学, 2014.
[14]Ulrich T J, Sutin A M, Guyer R A, et al. Time reversal and non-linear elastic wave spectroscopy (TR NEWS) techniques[J]. International Journal of Non-Linear Mechanics, 2008, 43(3):209-216. |
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