Track geometry estimation of a conventional railway from car-body acceleration measurement

This study proposes a track condition monitoring technique using car-body acceleration that can be easily measured by an in-service vehicle for the sake of an increase in safety of railway transportation. This paper demonstrates the possibility of estimating track irregularities of conventional rail...

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Autores principales:	Mai ODASHIMA, Shohei AZAMI, Yasukumi NAGANUMA, Hirotaka MORI, Hitoshi TSUNASHIMA
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2017
Materias:	railway condition monitoring track geometry kalman filter inverse analysis Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/89fd0a9c407e42fc803979cf63bb6358
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id	oai:doaj.org-article:89fd0a9c407e42fc803979cf63bb6358
record_format	dspace
spelling	oai:doaj.org-article:89fd0a9c407e42fc803979cf63bb63582021-11-26T07:00:24ZTrack geometry estimation of a conventional railway from car-body acceleration measurement2187-974510.1299/mej.16-00498https://doaj.org/article/89fd0a9c407e42fc803979cf63bb63582017-01-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/4/1/4_16-00498/_pdf/-char/enhttps://doaj.org/toc/2187-9745This study proposes a track condition monitoring technique using car-body acceleration that can be easily measured by an in-service vehicle for the sake of an increase in safety of railway transportation. This paper demonstrates the possibility of estimating track irregularities of conventional railway tracks using car-body acceleration only. The methodology proposed uses inverse dynamics to estimate track irregularity from car-body acceleration, applying a Kalman filter to solve this problem. This technique estimates the track irregularity in the longitudinal plane (track geometry and 10m-chord versine). The Kalman filter is able to apply to inverse analysis by expressing track geometry as a random walk model, and incorporating the model in an equation of state. The estimation technique can support a change of the vehicle velocity by selecting an appropriate impulse response in the measurement equation for the vehicle velocity. Estimation results in simulation and full scale tests revealed that the proposed estimation technique is effective for track condition monitoring with acceptable accuracy for conventional railways.Mai ODASHIMAShohei AZAMIYasukumi NAGANUMAHirotaka MORIHitoshi TSUNASHIMAThe Japan Society of Mechanical Engineersarticlerailwaycondition monitoringtrack geometrykalman filterinverse analysisMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 4, Iss 1, Pp 16-00498-16-00498 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	railway condition monitoring track geometry kalman filter inverse analysis Mechanical engineering and machinery TJ1-1570
spellingShingle	railway condition monitoring track geometry kalman filter inverse analysis Mechanical engineering and machinery TJ1-1570 Mai ODASHIMA Shohei AZAMI Yasukumi NAGANUMA Hirotaka MORI Hitoshi TSUNASHIMA Track geometry estimation of a conventional railway from car-body acceleration measurement
description	This study proposes a track condition monitoring technique using car-body acceleration that can be easily measured by an in-service vehicle for the sake of an increase in safety of railway transportation. This paper demonstrates the possibility of estimating track irregularities of conventional railway tracks using car-body acceleration only. The methodology proposed uses inverse dynamics to estimate track irregularity from car-body acceleration, applying a Kalman filter to solve this problem. This technique estimates the track irregularity in the longitudinal plane (track geometry and 10m-chord versine). The Kalman filter is able to apply to inverse analysis by expressing track geometry as a random walk model, and incorporating the model in an equation of state. The estimation technique can support a change of the vehicle velocity by selecting an appropriate impulse response in the measurement equation for the vehicle velocity. Estimation results in simulation and full scale tests revealed that the proposed estimation technique is effective for track condition monitoring with acceptable accuracy for conventional railways.
format	article
author	Mai ODASHIMA Shohei AZAMI Yasukumi NAGANUMA Hirotaka MORI Hitoshi TSUNASHIMA
author_facet	Mai ODASHIMA Shohei AZAMI Yasukumi NAGANUMA Hirotaka MORI Hitoshi TSUNASHIMA
author_sort	Mai ODASHIMA
title	Track geometry estimation of a conventional railway from car-body acceleration measurement
title_short	Track geometry estimation of a conventional railway from car-body acceleration measurement
title_full	Track geometry estimation of a conventional railway from car-body acceleration measurement
title_fullStr	Track geometry estimation of a conventional railway from car-body acceleration measurement
title_full_unstemmed	Track geometry estimation of a conventional railway from car-body acceleration measurement
title_sort	track geometry estimation of a conventional railway from car-body acceleration measurement
publisher	The Japan Society of Mechanical Engineers
publishDate	2017
url	https://doaj.org/article/89fd0a9c407e42fc803979cf63bb6358
work_keys_str_mv	AT maiodashima trackgeometryestimationofaconventionalrailwayfromcarbodyaccelerationmeasurement AT shoheiazami trackgeometryestimationofaconventionalrailwayfromcarbodyaccelerationmeasurement AT yasukuminaganuma trackgeometryestimationofaconventionalrailwayfromcarbodyaccelerationmeasurement AT hirotakamori trackgeometryestimationofaconventionalrailwayfromcarbodyaccelerationmeasurement AT hitoshitsunashima trackgeometryestimationofaconventionalrailwayfromcarbodyaccelerationmeasurement
_version_	1718409731927703552

Track geometry estimation of a conventional railway from car-body acceleration measurement

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