Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지
DOI QR코드

DOI QR Code

Impact Localization of a Composite Plate Using a Single Transducer and Spatial Focusing Signal Processing Techniques

단일 센서와 공간집속 신호처리 기술을 이용한 복합재 판에서의 충격위치 결정

  • Cho, Sungjong (Graduate School, Wonkwang University) ;
  • Jeong, Hyunjo (Division of Mechanical and Automotive Engineering, Wonkwang University)
  • Received : 2012.10.17
  • Accepted : 2012.12.28
  • Published : 2013.02.20
Download PDF
⟨ Previous Next ⟩

Abstract

A structural health monitoring(SHM) technique for locating impact position in a composite plate is presented in this paper. The technique employs a single sensor and spatial focusing properties of time reversal(TR) and inverse filtering(IF). We first examine the focusing effect of back-propagated signal at the impact position and its surroundings through simulation. Impact experiments are then carried out and the localization images are found using the TR and IF signal processing, respectively. Both techniques provide accurate impact location results. Compared to existing techniques for locating impact or acoustic emission source, the proposed methods have the benefits of using a single sensor and not requiring knowledge of material properties and geometry of structures. Furthermore, it does not depend on a particular mode of dispersive Lamb waves that is frequently used in the SHM of plate-like structures.

Keywords

References

  1. Tobias, A., 1976, Acoustic Emission Source Location in Two Dimensions by an Array of Three Sensors, Non-destructive Testing, Vol. 9, No. 1, pp. 9-12. https://doi.org/10.1016/0029-1021(76)90027-X
  2. Jeong, H. and Jang, Y.-S., 2000, Fracture Source Location in Thin Plates Using the Wavelet Transform of Dispersive Waves, IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, Vol. 47, No. 3, pp. 612-619. https://doi.org/10.1109/58.842048
  3. Jeong, H., Kwon, I.-B. and Choi, M.-Y., 2000, Time Frequency Analysis of Dispersive Waves in Structural Members under Impact Loads, Journal of the Korean Society for Nondestructive Testing, Vol. 20, No. 6, pp. 481-489.
  4. Gaul, L. and Hurlebaus, S., 1997, Identification of the Impact Location on a Plate Using Wavelets, Mechanical Systems and Signal Processing, Vol. 12, No. 6, pp. 783-795.
  5. Draeger, C. and Fink, M., 1997, One-channel Time Reversal of Elastic Waves in a Chaotic 2D-silicon Cavity, Physical Review Letters, Vol. 79, No. 3, pp. 407-410. https://doi.org/10.1103/PhysRevLett.79.407
  6. Ing, R. K., Quieffin, N., Cathelinea, S. and Fink, M., 2005, In Solid Localization of Finger Impacts Using Acoustic Time-reversal Process, Applied Physics Letters, Vol. 87, No. 20, p204104. https://doi.org/10.1063/1.2130720
  7. Sutin, A. M., TenCate, J. A. and Johnson, P. A., 2004, Single-channel Time Reversal in Elastic Solids, J. Acoust. Soc. Am., Vol. 116, No. 5, pp. 2779-2784. https://doi.org/10.1121/1.1802676
  8. Park, H. W., Sohn, H., Law, K. H. and Farrar, C., 2007, Time Reversal Active Sensing for Health Monitoring of a Composite Plate, J. Sound Vib., Vol. 302, No. 1-2, pp. 50-56. https://doi.org/10.1016/j.jsv.2006.10.044
  9. Jeong, H., 2008, Reconstruction of Dispersive Lamb Waves in Thin Plates Using a Time Reversal Method, Journal of the Korean Society for Nondestructive Testing, Vol. 28, No. 1, pp. 59-63.
  10. Park, H. W. Kim, S. B. and Sohn, H. 2009, Understanding a Time Reversal Process in Lamb Wave Propagation, Wave Motion, Vol. 46, No. 7, pp. 451- 467. https://doi.org/10.1016/j.wavemoti.2009.04.004
  11. Park, H. W., 2010, Simulating a Time Reversal Process for A0 Lamb Wave Mode on a Rectangular Plate Using a Virtual Sensor Array Model, Transactions of the Korean Society for Noise and Vibration Engineering, Vol. 20, No. 5, pp. 460-469. https://doi.org/10.5050/KSNVE.2010.20.5.460
  12. Jeong, H., Cho, S. and Wei, W., 2011, A Baseline-free Defect Imaging Technique in Plates Using Time Reversal of Lamb Waves, Chinese Physics Letters Vol. 28, No. 6, 064301. https://doi.org/10.1088/0256-307X/28/6/064301
  13. Bai, M. R. and Tsai, Y. K., 2011, Impact Localization Combined with Haptic Feed Back for Touch Panel Applications Based on the Time-reversal Approach, J. Acoust. Soc. Am., Vol. 129, No. 3, pp. 1297-1305. https://doi.org/10.1121/1.3533725
  14. Ciampa, F. and Meo, M., 2012, Impact Detection in Anisotropic Materials Using a Time Reversal Approach, Structural Health Monitoring, Vol. 11, No. 1, pp. 43-49. https://doi.org/10.1177/1475921710395815
  15. Vigoureux, D. and Guyader, J.-L., 2012, A Simplified Time Reversal Method Used to Localized Vibrations Sources in a Complex Structure, Applied Acoustics, Vol. 73, No. 5, pp. 491-496. https://doi.org/10.1016/j.apacoust.2011.12.004
  16. Ciampa, F. and Meo, M., 2011, Acoustic Emission Localization in Complex Dissipative Anisotropic Structures Using a One-channel Reciprocal Time Reversal Method, J. Acoust. Soc. Am., Vol. 130, No. 1, pp. 168-175. https://doi.org/10.1121/1.3598458
  17. Prosser, W., 1991, The Propagation Characteristics of the Plate Modes of Acoustic Emission Wave in Thin Aluminum Plates and Thin Graphite /Epoxy Composite Plates and Tubes, NASA Technical Memorandum, 104187.