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Optical Engineering • Open Access

Nonlinear vibroacoustic wave modulations for structural damage detection: an overview

Paper 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.

Paper Details

Date Published: 11 September 2015
PDF: 9 pages
Opt. Eng. 55(1) 011005 doi: 10.1117/1.OE.55.1.011005
Published in: Optical Engineering Volume 55, Issue 1
Show Author Affiliations
Lukasz Pieczonka, AGH Univ. of Science and Technology (Poland)
Andrzej Klepka, AGH Univ. of Science and Technology (Poland)
Adam Martowicz, AGH Univ. of Science and Technology (Poland)
Wieslaw J. Staszewski, AGH Univ. of Science and Technology (Poland)

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