Ultrasonic Guided Waves-Based Monitoring of Rail Head: Laboratory and Field Tests
Recent train accidents have reaffirmed the need for developing a rail defect detection system more effective than that currently used. One of the most promising techniques in rail inspection is the use of ultrasonic guided waves and noncontact probes. A rail inspection prototype based on these conce...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2010-01-01
|
| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2010/291293 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832555979196071936 |
|---|---|
| author | Piervincenzo Rizzo Marcello Cammarata Ivan Bartoli Francesco Lanza di Scalea Salvatore Salamone Stefano Coccia Robert Phillips |
| author_facet | Piervincenzo Rizzo Marcello Cammarata Ivan Bartoli Francesco Lanza di Scalea Salvatore Salamone Stefano Coccia Robert Phillips |
| author_sort | Piervincenzo Rizzo |
| collection | DOAJ |
| description | Recent train accidents have reaffirmed the need for developing a rail defect detection system more effective than that currently used. One of the most promising techniques in rail inspection is the use of ultrasonic guided waves and noncontact probes. A rail inspection prototype based on these concepts and devoted to the automatic damage detection of defects in rail head is the focus of this paper. The prototype includes an algorithm based on wavelet transform and outlier analysis. The discrete wavelet transform is utilized to denoise ultrasonic signals and to generate a set of relevant damage sensitive data. These data are combined into a damage index vector fed to an unsupervised learning algorithm based on outlier analysis that determines the anomalous conditions of the rail.
The first part of the paper shows the prototype in action on a railroad track mock-up built at the University of California, San Diego. The mock-up contained surface and internal defects. The results from three experiments are presented. The importance of feature selection to maximize the sensitivity of the inspection system is demonstrated here. The second part of the paper shows the results of field testing conducted in south east Pennsylvania under the auspices of the U.S. Federal Railroad Administration. |
| format | Article |
| id | doaj-art-35724295a0a24eb9ad754baef1c9d3eb |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-35724295a0a24eb9ad754baef1c9d3eb2025-02-03T05:46:36ZengWileyAdvances in Civil Engineering1687-80861687-80942010-01-01201010.1155/2010/291293291293Ultrasonic Guided Waves-Based Monitoring of Rail Head: Laboratory and Field TestsPiervincenzo Rizzo0Marcello Cammarata1Ivan Bartoli2Francesco Lanza di Scalea3Salvatore Salamone4Stefano Coccia5Robert Phillips6Department of Civil and Environmental Engineering, University of Pittsburgh, 949 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15261, USADepartment of Civil and Environmental Engineering, University of Pittsburgh, 949 Benedum Hall, 3700 O'Hara Street, Pittsburgh, PA 15261, USANDE and Structural Health Monitoring Laboratory, Department of Structural Engineering, University of California, San Diego 9500 Gilman Drive, M.C. 0085, La Jolla, CA 92093-0085, USANDE and Structural Health Monitoring Laboratory, Department of Structural Engineering, University of California, San Diego 9500 Gilman Drive, M.C. 0085, La Jolla, CA 92093-0085, USANDE and Structural Health Monitoring Laboratory, Department of Structural Engineering, University of California, San Diego 9500 Gilman Drive, M.C. 0085, La Jolla, CA 92093-0085, USANDE and Structural Health Monitoring Laboratory, Department of Structural Engineering, University of California, San Diego 9500 Gilman Drive, M.C. 0085, La Jolla, CA 92093-0085, USANDE and Structural Health Monitoring Laboratory, Department of Structural Engineering, University of California, San Diego 9500 Gilman Drive, M.C. 0085, La Jolla, CA 92093-0085, USARecent train accidents have reaffirmed the need for developing a rail defect detection system more effective than that currently used. One of the most promising techniques in rail inspection is the use of ultrasonic guided waves and noncontact probes. A rail inspection prototype based on these concepts and devoted to the automatic damage detection of defects in rail head is the focus of this paper. The prototype includes an algorithm based on wavelet transform and outlier analysis. The discrete wavelet transform is utilized to denoise ultrasonic signals and to generate a set of relevant damage sensitive data. These data are combined into a damage index vector fed to an unsupervised learning algorithm based on outlier analysis that determines the anomalous conditions of the rail. The first part of the paper shows the prototype in action on a railroad track mock-up built at the University of California, San Diego. The mock-up contained surface and internal defects. The results from three experiments are presented. The importance of feature selection to maximize the sensitivity of the inspection system is demonstrated here. The second part of the paper shows the results of field testing conducted in south east Pennsylvania under the auspices of the U.S. Federal Railroad Administration.http://dx.doi.org/10.1155/2010/291293 |
| spellingShingle | Piervincenzo Rizzo Marcello Cammarata Ivan Bartoli Francesco Lanza di Scalea Salvatore Salamone Stefano Coccia Robert Phillips Ultrasonic Guided Waves-Based Monitoring of Rail Head: Laboratory and Field Tests Advances in Civil Engineering |
| title | Ultrasonic Guided Waves-Based Monitoring of Rail Head: Laboratory and Field Tests |
| title_full | Ultrasonic Guided Waves-Based Monitoring of Rail Head: Laboratory and Field Tests |
| title_fullStr | Ultrasonic Guided Waves-Based Monitoring of Rail Head: Laboratory and Field Tests |
| title_full_unstemmed | Ultrasonic Guided Waves-Based Monitoring of Rail Head: Laboratory and Field Tests |
| title_short | Ultrasonic Guided Waves-Based Monitoring of Rail Head: Laboratory and Field Tests |
| title_sort | ultrasonic guided waves based monitoring of rail head laboratory and field tests |
| url | http://dx.doi.org/10.1155/2010/291293 |
| work_keys_str_mv | AT piervincenzorizzo ultrasonicguidedwavesbasedmonitoringofrailheadlaboratoryandfieldtests AT marcellocammarata ultrasonicguidedwavesbasedmonitoringofrailheadlaboratoryandfieldtests AT ivanbartoli ultrasonicguidedwavesbasedmonitoringofrailheadlaboratoryandfieldtests AT francescolanzadiscalea ultrasonicguidedwavesbasedmonitoringofrailheadlaboratoryandfieldtests AT salvatoresalamone ultrasonicguidedwavesbasedmonitoringofrailheadlaboratoryandfieldtests AT stefanococcia ultrasonicguidedwavesbasedmonitoringofrailheadlaboratoryandfieldtests AT robertphillips ultrasonicguidedwavesbasedmonitoringofrailheadlaboratoryandfieldtests |