Railway track monitoring using drive-by measurements

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Title: Railway track monitoring using drive-by measurements
Authors: Malekjafarian, Abdollah
OBrien, Eugene J
Cantero, Daniel
Permanent link: http://hdl.handle.net/10197/9812
Date: Oct-2017
Online since: 2019-04-04T09:19:15Z
Abstract: This paper presents the possibility of detecting considerable changes in track stiffness using the measurements from a laser vibrometer installed on a passing train. A numerical model of a two-dimensional train-track system is implemented in Matlab using the finite element method. The loss of stiffness in the track is modeled by reducing the stiffness of the sub-ballast layer of the track at specified points. The instantaneous velocity of the rail under the train is measured using four laser vibrometers mounted on the train. The simulations show that a change in the sub ballast stiffness of the track can be detected and located from the drive-by measurements.
Funding Details: Science Foundation Ireland
Type of material: Conference Publication
Keywords: RailwayTrack monitoringDrive-byTrain-track interaction
Other versions: https://eventegg.com/easec/
Language: en
Status of Item: Peer reviewed
Conference Details: The Fifteenth East Asia-Pacific Conference on Structural Engineering and Construction (EASEC-15), Xi'an, China, 11-13 October 2017
Appears in Collections:Civil Engineering Research Collection

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