Automated monitoring system for insulated joints: Preliminary results using axle box acceleration measurements

M Molodova, M Oregui, AA Nunez, Z Li, RPBJ Dollevoet

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

This paper presents preliminary results towards an automated monitoring system for quality assessment of insulated joints based on axle box acceleration (ABA) measurements. Longitudinal and vertical ABA signals from all the wheels of the measuring train (trailing and leading wheels, right and left rails), GPS and train speed are processed to first determine the location of an insulated joint, and then to extract from the ABA signals those characteristics that better represent the quality of the insulated joint. We compare the responses of different insulated joints in a good state or with visible surface degradation. Different indicators are used to classify the joint condition, being the most relevant the maximum ABA response, and some wavelet frequency bands. Track inspections were performed to collect validation data in different insulated joints of the Dutch railway network. The preliminary results show a good agreement in terms of both detection and quality assessment
Original languageEnglish
Title of host publicationProceedings of the second international conference on railway technology: research, development and maintenance
EditorsJ Pombo
Place of PublicationStirlingshire, UK
PublisherCivil-Comp Press
Pages1-11
Number of pages11
Volume104
DOIs
Publication statusPublished - 2014
Event2nd international conference on railway technology: research, development and maintenance - Stirlingshire, Ajaccio, France
Duration: 8 Apr 201411 Apr 2014

Publication series

Name
PublisherCivil-Comp Press
NameCivil-Comp Proceedings
Volume104
ISSN (Print)1759-3433

Conference

Conference2nd international conference on railway technology: research, development and maintenance
CountryFrance
CityAjaccio
Period8/04/1411/04/14

Keywords

  • Conf.proc. > 3 pag

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