Beamforming of wavefield data from embedded sources for rapid follow-up inspection of inaccessible areas

AIP Conference Proceedings

Volumn 1211, Issue , 2010, Pages 184-191

  Gandhi, Navneet ^a   Lee, Sang Jun ^a   Xu, Buli ^b   Hall, James S ^a   Michaels, Jennifer E ^a   Michaels, Thomas E ^a   Ruzzene, Massimo ^b  

^a GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

^b Georgia Institute of Technology   (United States)

Author keywords

Beamforming; Dispersion correction; Dynamic baseline estimation; Guided waves; Lamb waves; Laser vibrometer; Wavefield imaging

Indexed keywords

EID: 77950232806     PISSN: 0094243X     EISSN: 15517616     Source Type: Conference Proceeding    
DOI: 10.1063/1.3362314     Document Type: Conference Paper

References (10)

1. A. J. Croxford, P. D. Wilcox and B. W. Drinkwater, "Guided wave SHM with a distributed sensor network," in Proc. of the SPIE, 6935, 693514:1-9 (2008).
2. J. E. Michaels, "Detection, localization and characterization of damage in plates with an in situ array of spatially distributed ultrasonic sensors," Smart Mater. Struct., 17, 035035 (15pp) (2008).
3. S. E. Olson, M. P. DeSimio and M. M. Derriso, "Beam forming of Lamb waves for structural health monitoring," J. Vib. Acoust., 129, pp. 730-738 (2007).
4. L. Yu, and V. Giurgiutiu, "In situ 2-D piezoelectric wafer active sensors arrays for guided wave damage detection," Ultrasonics, 48, pp. 117-134 (2008).
5. P. Malinowski, T. Wandowski, I. Trendafilova and W. Ostachowicz, "A phased arraybased method for damage detection and localization in thin plates," Int. J. Struct. Health Monitoring, 8, pp. 5-15 (2009).
6. J. B. Ihn and F K. Chang, "Pitch-catch active sensing methods in structural health monitoring for aircraft structures," Int. J. Struct. Health Monitoring, 7, pp. 5-19 (2008).
7. J. E. Michaels, J. S. Hall, G. Hickman and J. Krolik, "Sparse array imaging of change-detected ultrasonic signals by minimum variance processing," in Review of Progress in QNDE, 28A, ed. by D. O. Thompson and D. E. Chimenti, pp. 642-649 (2009).
8. D. H. Johnson and D. E. Dudgeon, Array Signal Processing: Concepts and Techniques, Prentice Hall, Englewood Cliffs (1993).
9. D. Alleyne, T. Pialucha and P. Cawley, "A signal regeneration technique for long-range propagation of dispersive Lamb waves," Ultrasonics, 31, pp. 201-204 (1993).
10. P. Wilcox, "A rapid signal processing technique to remove the effect of dispersion from guided wave signals," IEEE Trans. Ultrason., Ferroelect., Freq. Contr., 50, pp. 419-427 (2003).