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Online Condition Monitoring of a Rail Fastening System on High-Speed Railways Based on Wavelet Packet Analysis

The rail fastening system is an important part of a high-speed railway track. It is always critical to the operational safety and comfort of railway vehicles. Therefore, the condition detection of the rail fastening system, looseness or absence, is an important task in railway maintenance. However,...

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Detalles Bibliográficos
Autores principales: Wei, Jiahong, Liu, Chong, Ren, Tongqun, Liu, Haixia, Zhou, Wenjing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5335991/
https://www.ncbi.nlm.nih.gov/pubmed/28208732
http://dx.doi.org/10.3390/s17020318
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author Wei, Jiahong
Liu, Chong
Ren, Tongqun
Liu, Haixia
Zhou, Wenjing
author_facet Wei, Jiahong
Liu, Chong
Ren, Tongqun
Liu, Haixia
Zhou, Wenjing
author_sort Wei, Jiahong
collection PubMed
description The rail fastening system is an important part of a high-speed railway track. It is always critical to the operational safety and comfort of railway vehicles. Therefore, the condition detection of the rail fastening system, looseness or absence, is an important task in railway maintenance. However, the vision-based method cannot identify the severity of rail fastener looseness. In this paper, the condition of rail fastening system is monitored based on an automatic and remote-sensing measurement system. Meanwhile, wavelet packet analysis is used to analyze the acceleration signals, based on which two damage indices are developed to locate the damage position and evaluate the severity of rail fasteners looseness, respectively. To verify the effectiveness of the proposed method, an experiment is performed on a high-speed railway experimental platform. The experimental results show that the proposed method is effective to assess the condition of the rail fastening system. The monitoring system significantly reduces the inspection time and increases the efficiency of maintenance management.
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spelling pubmed-53359912017-03-16 Online Condition Monitoring of a Rail Fastening System on High-Speed Railways Based on Wavelet Packet Analysis Wei, Jiahong Liu, Chong Ren, Tongqun Liu, Haixia Zhou, Wenjing Sensors (Basel) Article The rail fastening system is an important part of a high-speed railway track. It is always critical to the operational safety and comfort of railway vehicles. Therefore, the condition detection of the rail fastening system, looseness or absence, is an important task in railway maintenance. However, the vision-based method cannot identify the severity of rail fastener looseness. In this paper, the condition of rail fastening system is monitored based on an automatic and remote-sensing measurement system. Meanwhile, wavelet packet analysis is used to analyze the acceleration signals, based on which two damage indices are developed to locate the damage position and evaluate the severity of rail fasteners looseness, respectively. To verify the effectiveness of the proposed method, an experiment is performed on a high-speed railway experimental platform. The experimental results show that the proposed method is effective to assess the condition of the rail fastening system. The monitoring system significantly reduces the inspection time and increases the efficiency of maintenance management. MDPI 2017-02-08 /pmc/articles/PMC5335991/ /pubmed/28208732 http://dx.doi.org/10.3390/s17020318 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wei, Jiahong
Liu, Chong
Ren, Tongqun
Liu, Haixia
Zhou, Wenjing
Online Condition Monitoring of a Rail Fastening System on High-Speed Railways Based on Wavelet Packet Analysis
title Online Condition Monitoring of a Rail Fastening System on High-Speed Railways Based on Wavelet Packet Analysis
title_full Online Condition Monitoring of a Rail Fastening System on High-Speed Railways Based on Wavelet Packet Analysis
title_fullStr Online Condition Monitoring of a Rail Fastening System on High-Speed Railways Based on Wavelet Packet Analysis
title_full_unstemmed Online Condition Monitoring of a Rail Fastening System on High-Speed Railways Based on Wavelet Packet Analysis
title_short Online Condition Monitoring of a Rail Fastening System on High-Speed Railways Based on Wavelet Packet Analysis
title_sort online condition monitoring of a rail fastening system on high-speed railways based on wavelet packet analysis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5335991/
https://www.ncbi.nlm.nih.gov/pubmed/28208732
http://dx.doi.org/10.3390/s17020318
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