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Abstract

This paper proposes a probabilistic approach to localize acoustic emission (AE) source in plate-like structures using particle filter (PF) with consideration of uncertainties from modeling error and measurement noise. The AE signals acquired by piezoelectric sensors are first processed by a complex wavelet transform to extract the time of arrival (TOA) information. Then localization of the AE source is formulated as a Bayesian state estimation problem with the source location and the wave velocity as unknown state parameters. A PF procedure is developed to iteratively estimate the unknown parameters simultaneously by using the TOA data. Experimental studies on a stiffened aluminum panel with AE events simulated by pensile lead breaks (PLBs) are conducted to demonstrate the effectiveness of the PF-based AE localization method.

Keywords

Acoustic emission source localization particle filter uncertainty

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References

Tobias

, Acoustic-emission source location in two dimensions by an array of three sensors, Non-Destructive Testing9 (1976), 9-12.

Gaul

and Hurlebaus

, Identification of the impact location on a plate using wavelets, Mechanical System and Signal Processing12 (1998), 783-795.

Ciampa

and Meo

, Acoustic emission source localization and velocity determination of the fundamental mode A0 using wavelet analysis and a Newton-based optimization technique, Smart Materials and Structures19 (2010), 045027.

Kundu

, Nakatani

and Takeda

, Acoustic source localization in anisotropic plates, Ultrasonics52 (2012), 740-746.

Coverley

and Staszewski

, Impact damage location in composite structures using optimized sensor triangulation procedure, Smart Materials and Structures12 (2003), 795-803.

Yan

and Tang

, A Bayesian approach for localization of acoustic emission source in plate-like structure, Mathematical Problems in Engineering2015 (2015), Article ID 247839.

Dehaghan-Niri

and Salamone

, A probabilitic framework for acoustic emission source localization in plate-like structures, Smart Materials and Structures21 (2012), 035009.

Dehaghan-Niri

and Salamone

, Nonlinear Kalman filtering for acoustic emission source localization in anisotropic panels, Ultrasonics54 (2014), 486-501.

Arulampallam

, Maskell

, Gordon

et al., A tutorial on particle filters for online nonlinear/non-Gaussian Bayesian tracking, IEEE Transactions on Signal Processing50 (2002), 174-188.

A particle filter-based method for acoustic emission source localization

Abstract

Keywords

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References