Abstract
This paper presents a joint approach to the detection, localization and characterization of structural defects. Our technique, termed Dual-Stage Structural Health Monitoring (DSSHM), combines an online, embedded ultrasonic structural health monitoring system with acoustic wavenumber spectroscopy data gathered from a scanning laser Doppler vibrometer. The combined system provides non-disruptive monitoring and high measurement fidelity necessary to drive critical decisions. Stage 1 is performed in situ (while the structure is in operation): an array of embedded ultrasonic transducers is used to excite and measure ultrasonic wave pulses in order to detect and locate irregularities within the test structure. In Stage 2, a subset of the same transducer array produces a steady-state ultrasonic response in the immediate vicinity of each structural irregularity. A laser Doppler vibrometer is then introduced to measure the full field response around that particular location in order to verify the presence of damage and provide high fidelity localization and characterization of the affected area. This document explores both the application of ultrasonic guided wave physics and the integration of sensing hardware and signal processing algorithms in implementing DSSHM.
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References
Farrar CR, Worden K (2007) An introduction to structural health monitoring. Philos Trans Roy Soc A Math Phys Eng Sci 365(1851):303–315
Raghavan A, Cesnik CE (2007) Review of guided-wave structural health monitoring. Shock Vib Dig 39(2):91–116
Michaels TE, Michaels JE, Mi B, Ruzzene M (2005) Damage detection in plate structures using sparse ultrasonic transducer arrays and acoustic wavefield imaging. In: AIP conference proceedings. IOP Institute of Physics Publishing Ltd., Golden, Colorado, USA, vol 760, no 1, p 938
Lamb H (1917) On waves in an elastic plate. In: Proceedings of the royal society of London. Series A, Containing papers of a mathematical and physical character, pp 114–128
Staszewski WJ, Lee BC, Mallet L, Scarpa F (2004) Structural health monitoring using scanning laser vibrometry: I. Lamb wave sensing. Smart Mater Struct 13(2):251–260
Croxford AJ, Moll J, Wilcox PD, Michaels JE (2010) Efficient temperature compensation strategies for guided wave structural health monitoring. Ultrasonics 50(4):517–528
Lu Y, Michaels JE (2005) A methodology for structural health monitoring with diffuse ultrasonic waves in the presence of temperature variations. Ultrasonics 43(9):717–731
Flynn EB, Todd MD, Wilcox PD, Drinkwater BW, Croxford AJ (2011) Maximum-likelihood estimation of damage location in guided-wave structural health monitoring. In: Proceedings of the royal society A: mathematical, physical and engineering science, rspa20110095
Flynn EB, Jarmer GJ (2013) High-speed, non-contact, baseline-free imaging of hiddden defects using scanning laser measurements of steady-state ultrasonic vibration. In: 9th international workshop on structural health monitoring, Stanford, California, USA, vol 1
Acknowledgments
The authors would like to thank Mike Bode and the employees at the Aging Aircraft Facility at Sandia for allowing us to perform our testing on the Boeing 737. The hospitality and information you provided for us are greatly appreciated.
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© 2015 The Society for Experimental Mechanics, Inc.
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Gannon, A., Wheeler, E., Brown, K., Flynn, E., Warren, W. (2015). A High-Speed Dual-Stage Ultrasonic Guided Wave System for Localization and Characterization of Defects. In: Niezrecki, C. (eds) Structural Health Monitoring and Damage Detection, Volume 7. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-15230-1_12
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DOI: https://doi.org/10.1007/978-3-319-15230-1_12
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-15229-5
Online ISBN: 978-3-319-15230-1
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