Method and instrumentation for detection of rail defects, in particular rail top defects

Title

Method and instrumentation for detection of rail defects, in particular rail top defects

 Author

Li, Z.
Molodova, M.

Faculty

Civil Engineering and Geosciences

 Department

Design and Construction

 Date

2011-02-17

 Abstract

A method and instrumentation for detection of rail defects, in particular rail top defects, in a railway-track by measuring an axle box acceleration signal of a rail vehicle, wherein a longitudinal axle box acceleration signal is used as a measure to detect the occurrence of said rail defects, in particular rail top defects. The method also includes measuring a vertical axle box acceleration signal of said rail vehicle, whereby the longitudinal axle box acceleration signal is used in combination and simultaneously with said vertical axle box acceleration signal. It is further preferred that the longitudinal axle box acceleration signal is used to remove from said vertical axle box acceleration signal a signal-part that relates to vibrations of the rail vehicle's wheelset, including the bearing and axle box (3), and that the axle box acceleration signals are filtered for removing signal-parts contributed by vibrations of the track, including the rail (1), rail pads, fasteners, sleepers, and ballast.

 To reference this document use:

http://resolver.tudelft.nl/uuid:5b2dcfc2-a584-4690-acad-4d6aa1056dc7

 Publisher

European Patent Office

 Source

http://worldwide.espacenet.com/publicationDetails/biblio?CC=WO&NR=2011019273A1&KC=A1&FT=D&date=20110217&DB=EPODOC&locale=en_EP

 Source

WO 2011019273 (A1)

 Part of collection

Institutional Repository

 Document type

patent

 Rights

(c) 2011 Li, Z.
Molodova, M.
Files
PDF WO2011019273A1.pdf 408.81 KB
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