Impact identification using a passive imaging method

This study presents a novel imaging method in passive sensing structural health monitoring (SHM), for locating impact damage in real-time on a plate-like structure. So far, many imaging methods have already been applied in active sensing SHM to locate the damages. However, seldom of the imaging methods can be directly used to locate the impact in passive sensing SHM. In order to avoid solving the hyperstatic hyperbolic equations and generate an informative image for locating the impact damage, the proposed method combines the imaging method with probability calculation. Moreover, to demonstrate the feasibility of the proposed method, the experimental results are presented and analyzed. From the results, the proposed method shows an interesting phenomenon that the accuracy of the impact localization depends on the impact position. Finally, a detailed analysis of the method accuracy is discussed.

[1]  Stefan Hurlebaus,et al.  IDENTIFICATION OF THE IMPACT LOCATION ON A PLATE USING WAVELETS , 1998 .

[2]  F. L. D. Scalea,et al.  Macro-fiber composite piezoelectric rosettes for acoustic source location in complex structures , 2007 .

[3]  Ning Hu,et al.  Numerical analysis of correlation between fibre orientation and eddy current testing signals of carbon-fibre reinforced polymer composites , 2012 .

[4]  Nicolò Speciale,et al.  A passive monitoring technique based on dispersion compensation to locate impacts in plate-like structures , 2011 .

[5]  Jian Wu,et al.  Strain distribution monitoring wireless sensor network design and its evaluation research on aircraft wingbox , 2009 .

[6]  Grabec,et al.  Location of acoustic emission sources generated by air flow , 2000, Ultrasonics.

[7]  Chun H. Wang,et al.  A synthetic time-reversal imaging method for structural health monitoring , 2004 .

[8]  L. De Marchi,et al.  Ultrasonic guided-waves characterization with Warped Frequency Transforms , 2008, 2008 IEEE Ultrasonics Symposium.

[9]  Steven E. Owens,et al.  Ultrasonic Lamb wave tomography in structural health monitoring , 2011 .

[10]  Salvatore Salamone,et al.  High-velocity Impact Location on Aircraft Panels Using Macro-fiber Composite Piezoelectric Rosettes , 2010 .

[11]  J. Michaels.  Detection, localization and characterization of damage in plates with an in situ array of spatially distributed ultrasonic sensors , 2008 .

[12]  Jinhao Qiu,et al.  Metal core piezoelectric ceramic fiber rosettes for acousto-ultrasonic source localization in plate structures , 2010 .

[13]  Christian Boller,et al.  Health Monitoring of Aerospace Structures , 2003 .

[14]  Max Deffenbaugh,et al.  The relationship between spherical and hyperbolic positioning , 1996, OCEANS 96 MTS/IEEE Conference Proceedings. The Coastal Ocean - Prospects for the 21st Century.

[15]  Christian Boller,et al.  Next generation structural health monitoring and its integration into aircraft design , 2000, Int. J. Syst. Sci..

[16]  Tribikram Kundu,et al.  Detection of the point of impact on a stiffened plate by the acoustic emission technique , 2009 .

[17]  Francesco Ciampa,et al.  Acoustic emission source localization and velocity determination of the fundamental mode A0 using wavelet analysis and a Newton-based optimization technique , 2010 .

[18]  Jeong-Beom Ihn,et al.  Pitch-catch Active Sensing Methods in Structural Health Monitoring for Aircraft Structures , 2008 .

[19]  Keith Worden,et al.  Fail-safe sensor distributions for impact detection in composite materials , 2000 .

[20]  V. Giurgiutiu.  Tuned Lamb Wave Excitation and Detection with Piezoelectric Wafer Active Sensors for Structural Health Monitoring , 2005 .

[21]  T. Michaels,et al.  Guided wave signal processing and image fusion for in situ damage localization in plates , 2007 .

[22]  Ning Hu,et al.  Identification of impact forces on composite structures using an inverse approach , 2007 .

[23]  Luca De Marchi,et al.  Acoustic emission localization in plates with dispersion and reverberations using sparse PZT sensors in passive mode , 2012 .

[24]  Michele Meo,et al.  Impact identification on a sandwich plate from wave propagation responses , 2005 .

[25]  Xinjun Wu,et al.  Defect detection in transition zones of sucker rods using magnetostrictive guided waves , 2012 .