Defect Detection and Location in Switch Rails by Acoustic Emission and Lamb Wave Analysis: A Feasibility Study

Jinrui Zhang; Hongyan Ma; Wangji Yan; Zongjin Li

doi:10.1016/j.apacoust.2015.11.018

Defect Detection and Location in Switch Rails by Acoustic Emission and Lamb Wave Analysis: A Feasibility Study

Jinrui Zhang
, Hongyan Ma
, Wangji Yan
, Zongjin Li

Civil, Architectural and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

An acoustic emission (AE) based approach is proposed in this study to identify and locate newly initiated defects or the propagation of existing defects in railroad switch rails. Defect-induced AE signals are identified through frequency analysis, as frequencies of these signals are much higher than those induced by structural vibration. Continuous wavelet transform (CWT) is employed to analyze the Lamb wave dispersion of the detected signal, so that two characteristic points can be selected on the CWT contour map to locate the defect. Using this approach, defects in a damaged switch rail can be located using a single sensor.

Original language	American English
Journal	Applied Acoustics
Volume	105
DOIs	https://doi.org/10.1016/j.apacoust.2015.11.018
State	Published - Apr 1 2016

Keywords

Acoustic Emission Testing
Acoustic Emissions
Acoustics
Characteristic Point
Continuous Wavelet Transform
Continuous Wavelet Transforms
Defects
Feasibility Studies
Frequency
Frequency Analysis
Lamb Wave
Rail Inspections
Structural Dynamics
Structural Vibrations
Surface Waves
Ultrasonic Waves
Vibration Analysis
Wavelet Transforms

Disciplines

Civil Engineering

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https://doi.org/10.1016/j.apacoust.2015.11.018

Cite this

@article{984af2172b8b462f81e8a36cc1b0fbf1,

title = "Defect Detection and Location in Switch Rails by Acoustic Emission and Lamb Wave Analysis: A Feasibility Study",

abstract = " An acoustic emission (AE) based approach is proposed in this study to identify and locate newly initiated defects or the propagation of existing defects in railroad switch rails. Defect-induced AE signals are identified through frequency analysis, as frequencies of these signals are much higher than those induced by structural vibration. Continuous wavelet transform (CWT) is employed to analyze the Lamb wave dispersion of the detected signal, so that two characteristic points can be selected on the CWT contour map to locate the defect. Using this approach, defects in a damaged switch rail can be located using a single sensor.",

keywords = "Acoustic Emission Testing, Acoustic Emissions, Acoustics, Characteristic Point, Continuous Wavelet Transform, Continuous Wavelet Transforms, Defects, Feasibility Studies, Frequency, Frequency Analysis, Lamb Wave, Rail Inspections, Structural Dynamics, Structural Vibrations, Surface Waves, Ultrasonic Waves, Vibration Analysis, Wavelet Transforms",

author = "Jinrui Zhang and Hongyan Ma and Wangji Yan and Zongjin Li",

year = "2016",

month = apr,

day = "1",

doi = "10.1016/j.apacoust.2015.11.018",

language = "American English",

volume = "105",

journal = "Applied Acoustics",

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TY - JOUR

T1 - Defect Detection and Location in Switch Rails by Acoustic Emission and Lamb Wave Analysis: A Feasibility Study

AU - Zhang, Jinrui

AU - Ma, Hongyan

AU - Yan, Wangji

AU - Li, Zongjin

PY - 2016/4/1

Y1 - 2016/4/1

N2 - An acoustic emission (AE) based approach is proposed in this study to identify and locate newly initiated defects or the propagation of existing defects in railroad switch rails. Defect-induced AE signals are identified through frequency analysis, as frequencies of these signals are much higher than those induced by structural vibration. Continuous wavelet transform (CWT) is employed to analyze the Lamb wave dispersion of the detected signal, so that two characteristic points can be selected on the CWT contour map to locate the defect. Using this approach, defects in a damaged switch rail can be located using a single sensor.

AB - An acoustic emission (AE) based approach is proposed in this study to identify and locate newly initiated defects or the propagation of existing defects in railroad switch rails. Defect-induced AE signals are identified through frequency analysis, as frequencies of these signals are much higher than those induced by structural vibration. Continuous wavelet transform (CWT) is employed to analyze the Lamb wave dispersion of the detected signal, so that two characteristic points can be selected on the CWT contour map to locate the defect. Using this approach, defects in a damaged switch rail can be located using a single sensor.

KW - Acoustic Emission Testing

KW - Acoustic Emissions

KW - Acoustics

KW - Characteristic Point

KW - Continuous Wavelet Transform

KW - Continuous Wavelet Transforms

KW - Defects

KW - Feasibility Studies

KW - Frequency

KW - Frequency Analysis

KW - Lamb Wave

KW - Rail Inspections

KW - Structural Dynamics

KW - Structural Vibrations

KW - Surface Waves

KW - Ultrasonic Waves

KW - Vibration Analysis

KW - Wavelet Transforms

UR - https://scholarsmine.mst.edu/civarc_enveng_facwork/685

UR - https://doi.org/10.1016/j.apacoust.2015.11.018

U2 - 10.1016/j.apacoust.2015.11.018

DO - 10.1016/j.apacoust.2015.11.018

M3 - Article

VL - 105

JO - Applied Acoustics

JF - Applied Acoustics

ER -

Defect Detection and Location in Switch Rails by Acoustic Emission and Lamb Wave Analysis: A Feasibility Study

Abstract

Keywords

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