On-line high-speed rail defect detection, phase III : research results.

Lanza di Scalea, Francesco; Rizzo, Piervincenzo; Coccia, Stefano; Bartoli, Ivan; University of California, San Diego

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On-line high-speed rail defect detection, phase III : research results.

2005-10-01
By Lanza di Scalea, Francesco ; Rizzo, Piervincenzo ; Coccia, Stefano ; ...

[PDF-325.53 KB]

English

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Creators:

Lanza di Scalea, Francesco ; Rizzo, Piervincenzo ; Coccia, Stefano ; Bartoli, Ivan

Lanza di Scalea, Francesco ; Rizzo, Piervincenzo ; Coccia, Stefano ; Bartoli, Ivan Less -
Corporate Creators:

University of California, San Diego
Corporate Contributors:

United States. Federal Railroad Administration. Office of Research and Development
Subject/TRT Terms:

[+]

Flaw Detection High Speed Ground Transportation High Speed Rail High Speed Track Inspection Railroad Rails--Defects--United States Railroad Rails--Inspection--United States Railroad Safety Ultrasonic Testing--United States
Publication/ Report Number:

RR05-07
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Research results.
Corporate Publisher:

United States. Federal Railroad Administration. Office of Research and Development
Abstract:

The Federal Railroad Administration (FRA) Office of Research and Development’s Track and Structures Program sponsored a study for developing and testing a rail defect detection system based on ultrasonic guided waves and non-contact probing. Current rail defect detection systems based on ultrasonic testing have limitations in terms of reliability of defect detection, inspection speed, and other drawbacks associated with the requirement for contact between the ultrasonic probes and the rail surface. More importantly, conventional ultrasonic testing of rails has serious difficulties detecting internal defects in the presence of surface shelling. The rail defect detection technique that is being funded is based on fundamentally new concepts in that 1) uses ultrasonic waves traveling along, rather than across the rail running direction, 2) uses non-contact means of generating and detecting the ultrasonic waves in the rail, and 3) uses advanced signal processing algorithms to de-noise the measurements and extract robust defect-sensitive information. A prototype is being assembled based on this technology and plans are in place to install and test the prototype in the FRA Research Car.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:19a8d45258b675e6e7dbc460a998c02426dbc285ccee11608df11931dfd9dcdf
Download URL:

https://rosap.ntl.bts.gov/view/dot/23372/dot_23372_DS1.pdf
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On-line high-speed rail defect detection, phase III : research results.

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