Warped-wigner-hough transformation of lamb waves for automatic defect detection

Alessandro Perelli; Luca De Marchi; Emanuele Baravelli; Alessandro Marzani; Nicolò Speciale

doi:10.1109/ULTSYM.2011.0266

Warped-wigner-hough transformation of lamb waves for automatic defect detection

Alessandro Perelli, Luca De Marchi, Emanuele Baravelli, Alessandro Marzani, Nicolò Speciale

Biomedical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

To improve the defect detectability of Lamb wave inspection systems, application of non-linear signal processing was investigated. The approach is based on a Warped Frequency Transform (WFT) to compensate the dispersive behavior of ultrasonic guided waves, followed by a Wigner-Ville time-frequency analysis and the Hough Transform to further improve localization accuracy. As a result, an automatic detection procedure to locate defect-induced reflections was demonstrated and successfully tested by analyzing numerically simulated Lamb waves propagating in an aluminum plate. The proposed method is suitable for defect detection and can be easily implemented for real application to structural health monitoring.

Original language	English
Title of host publication	2011 IEEE International Ultrasonics Symposium
Publisher	IEEE
Pages	1084-1087
Number of pages	4
ISBN (Electronic)	978-1-4577-1252-4
ISBN (Print)	978-1-4577-1253-1
DOIs	https://doi.org/10.1109/ULTSYM.2011.0266
Publication status	Published - 21 Oct 2011
Event	2011 IEEE International Ultrasonics Symposium - Orlando, FL, USA Duration: 18 Oct 2011 → 21 Oct 2011

Conference

Conference	2011 IEEE International Ultrasonics Symposium
Period	18/10/11 → 21/10/11

Keywords

Dispersion
Transforms
Acoustics
Time frequency analysis
Aluminum
Educational institutions

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10.1109/ULTSYM.2011.0266

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6293187

Cite this

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title = "Warped-wigner-hough transformation of lamb waves for automatic defect detection",

abstract = "To improve the defect detectability of Lamb wave inspection systems, application of non-linear signal processing was investigated. The approach is based on a Warped Frequency Transform (WFT) to compensate the dispersive behavior of ultrasonic guided waves, followed by a Wigner-Ville time-frequency analysis and the Hough Transform to further improve localization accuracy. As a result, an automatic detection procedure to locate defect-induced reflections was demonstrated and successfully tested by analyzing numerically simulated Lamb waves propagating in an aluminum plate. The proposed method is suitable for defect detection and can be easily implemented for real application to structural health monitoring.",

keywords = "Dispersion, Transforms, Acoustics, Time frequency analysis, Aluminum, Educational institutions",

author = "Alessandro Perelli and Marchi, {Luca De} and Emanuele Baravelli and Alessandro Marzani and Nicol{\`o} Speciale",

year = "2011",

month = oct,

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doi = "10.1109/ULTSYM.2011.0266",

language = "English",

isbn = "978-1-4577-1253-1",

pages = "1084--1087",

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TY - GEN

T1 - Warped-wigner-hough transformation of lamb waves for automatic defect detection

AU - Perelli, Alessandro

AU - Marchi, Luca De

AU - Baravelli, Emanuele

AU - Marzani, Alessandro

AU - Speciale, Nicolò

PY - 2011/10/21

Y1 - 2011/10/21

N2 - To improve the defect detectability of Lamb wave inspection systems, application of non-linear signal processing was investigated. The approach is based on a Warped Frequency Transform (WFT) to compensate the dispersive behavior of ultrasonic guided waves, followed by a Wigner-Ville time-frequency analysis and the Hough Transform to further improve localization accuracy. As a result, an automatic detection procedure to locate defect-induced reflections was demonstrated and successfully tested by analyzing numerically simulated Lamb waves propagating in an aluminum plate. The proposed method is suitable for defect detection and can be easily implemented for real application to structural health monitoring.

AB - To improve the defect detectability of Lamb wave inspection systems, application of non-linear signal processing was investigated. The approach is based on a Warped Frequency Transform (WFT) to compensate the dispersive behavior of ultrasonic guided waves, followed by a Wigner-Ville time-frequency analysis and the Hough Transform to further improve localization accuracy. As a result, an automatic detection procedure to locate defect-induced reflections was demonstrated and successfully tested by analyzing numerically simulated Lamb waves propagating in an aluminum plate. The proposed method is suitable for defect detection and can be easily implemented for real application to structural health monitoring.

KW - Dispersion

KW - Transforms

KW - Acoustics

KW - Time frequency analysis

KW - Aluminum

KW - Educational institutions

UR - https://ieeexplore.ieee.org/document/6293187/

U2 - 10.1109/ULTSYM.2011.0266

DO - 10.1109/ULTSYM.2011.0266

M3 - Conference contribution

SN - 978-1-4577-1253-1

SP - 1084

EP - 1087

BT - 2011 IEEE International Ultrasonics Symposium

PB - IEEE

T2 - 2011 IEEE International Ultrasonics Symposium

Y2 - 18 October 2011 through 21 October 2011

ER -

Warped-wigner-hough transformation of lamb waves for automatic defect detection

Abstract

Conference

Keywords

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