An inverse analysis method for the assessment of track irregularity

W. F. Chen, H. C. Tsai, C. Y. Wang, C. L. Liao

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents an experimental study of a new assessment of track irregularity based on a new inverse analysis method. Two tri-axial accelerometers are mounted on the axel box of a track recording vehicle to measure the dynamic response. And according to the acceleration responses at axel box, the spatial path of the moving wheel on the track will be found by an inverse analysis method. The rotation gradients in three moving coordinate direction along the tracks scanned over by the accelerometers can be clearly identified. These rotation gradients can be used to identify the locations of the geometrical irregularities of the tracks due to settlement, deformation, lose of fastener, crack, and welding point of the inspected track. Some examples are demonstrated to verify the feasibility and accuracy of this innovative theory.

Original languageEnglish
Title of host publicationProceedings of the 1st International Workshop on High-Speed and Intercity Railways
Pages373-383
Number of pages11
EditionVOL. 1
DOIs
StatePublished - 2012
Event1st International Workshop on High-Speed and Intercity Railways, IWHIR 2011 - Shenzhen, Hong Kong, China
Duration: 19 Jul 201122 Jul 2011

Publication series

NameLecture Notes in Electrical Engineering
NumberVOL. 1
Volume147 LNEE
ISSN (Print)1876-1100
ISSN (Electronic)1876-1119

Conference

Conference1st International Workshop on High-Speed and Intercity Railways, IWHIR 2011
Country/TerritoryChina
CityShenzhen, Hong Kong
Period19/07/1122/07/11

Keywords

  • Axle-Box accelerometer
  • inverse analysis
  • Irregularity verify
  • rotation gradient

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