5 April 2017 Probabilistic location estimation of acoustic emission sources in isotropic plates with one sensor
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Abstract
This paper presents a probabilistic acoustic emission (AE) source localization algorithm for isotropic plate structures. The proposed algorithm requires only one sensor and uniformly monitors the entire area of such plates without any blind zones. In addition, it takes a probabilistic approach and quantifies localization uncertainties. The algorithm combines a modal acoustic emission (MAE) and a reflection-based technique to obtain information pertaining to the location of AE sources. To estimate confidence contours for the location of sources, uncertainties are quantified and propagated through the two techniques. The approach was validated using standard pencil lead break (PLB) tests on an Aluminum plate. The results demonstrate that the proposed source localization algorithm successfully estimates confidence contours for the location of AE sources.
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Arvin Ebrahimkhanlou, Arvin Ebrahimkhanlou, Salvatore Salamone, Salvatore Salamone, } "Probabilistic location estimation of acoustic emission sources in isotropic plates with one sensor", Proc. SPIE 10170, Health Monitoring of Structural and Biological Systems 2017, 1017029 (5 April 2017); doi: 10.1117/12.2258618; https://doi.org/10.1117/12.2258618
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