11 September 2015 Nonlinear vibroacoustic wave modulations for structural damage detection: an overview
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Optical Engineering, 55(1), 011005 (2015). doi:10.1117/1.OE.55.1.011005
Abstract
We present an overview of research developments related to the nonlinear vibroacoustic modulation technique used for structural damage detection. The method of interest is based on nonlinear interactions of a low-frequency pumping wave and a high-frequency probing wave. These two waves are introduced to monitored structures simultaneously. Then the presence of damage is exhibited by additional frequency components that result from nonlinear damage-wave interactions. A vast amount of research has been performed in this area over the last two decades. We aim to present the state-of-the-art of these developments. The major focus is on monitoring approaches, modeling aspects, actuation/sensing, signal processing, and application examples.
Pieczonka, Klepka, Martowicz, and Staszewski: Nonlinear vibroacoustic wave modulations for structural damage detection: an overview
Lukasz Pieczonka, Andrzej Klepka, Adam Martowicz, Wieslaw J. Staszewski, "Nonlinear vibroacoustic wave modulations for structural damage detection: an overview," Optical Engineering 55(1), 011005 (11 September 2015). http://dx.doi.org/10.1117/1.OE.55.1.011005
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KEYWORDS
Modulation

Damage detection

Transducers

Nonlinear optics

Signal processing

Ultrasonics

Composites

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