Cargando…

Rail Corrugation Index Development by Sound-Field Excitation on the Carriage Floor of In-Service Train

The steel rail and wheel in the railway system offer a high precision and smooth-running surface. Nevertheless, the point of contact between the rail and wheel presents a critical area that can give rise to rail corrugation. This phenomenon can potentially elevate sound and vibration levels in the v...

Descripción completa

Detalles Bibliográficos
Autores principales: Hsu, Wei-Lun, Chang, Chia-Ming
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10490596/
https://www.ncbi.nlm.nih.gov/pubmed/37687994
http://dx.doi.org/10.3390/s23177539
_version_ 1785103876393795584
author Hsu, Wei-Lun
Chang, Chia-Ming
author_facet Hsu, Wei-Lun
Chang, Chia-Ming
author_sort Hsu, Wei-Lun
collection PubMed
description The steel rail and wheel in the railway system offer a high precision and smooth-running surface. Nevertheless, the point of contact between the rail and wheel presents a critical area that can give rise to rail corrugation. This phenomenon can potentially elevate sound and vibration levels in the vicinity considerably, necessitating advanced monitoring and assessment measures. Recently, many efforts have been directed towards utilizing in-service trains for evaluating rail corrugation, and the evaluation has primarily relied on axle-box acceleration (ABA). However, the ABA measurements require a higher threshold for vibration detection. This study introduces a novel approach to rail corrugation detection by carriage floor acceleration (CFA), aimed at lowering the detection threshold. The method capitalizes on the acceleration data sensed on the carriage floor, which is induced by the sound pressure (e.g., sound-field excitation) generated at the wheel–rail contact point. An exploration of the correlation between these datasets is undertaken by simultaneously measuring both ABA and CFA. Moreover, a pivotal aspect of this research is the development of the eigenfrequency rail corrugation index (E-RCI), a mechanism that culminates energy around specific eigenfrequencies by CFA. Through this index, a focused analysis of rail corrugation patterns is facilitated. The study further delves into the stability, repeatability, and sensitivity of the E-RCI via varied measurement scenarios. Ultimately, the CFA-based rail corrugation identification is verified, establishing its practical applicability and offering a distinct approach to detecting and characterizing rail corrugation phenomena. This study has introduced an innovative methodology for rail corrugation detection using CFA, with the principal objective of lowering the detection threshold. This approach offers an efficient measurement technique for identifying rail corrugation areas, thereby potentially reducing maintenance costs and enhancing efficiency within the railway industry.
format Online
Article
Text
id pubmed-10490596
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-104905962023-09-09 Rail Corrugation Index Development by Sound-Field Excitation on the Carriage Floor of In-Service Train Hsu, Wei-Lun Chang, Chia-Ming Sensors (Basel) Article The steel rail and wheel in the railway system offer a high precision and smooth-running surface. Nevertheless, the point of contact between the rail and wheel presents a critical area that can give rise to rail corrugation. This phenomenon can potentially elevate sound and vibration levels in the vicinity considerably, necessitating advanced monitoring and assessment measures. Recently, many efforts have been directed towards utilizing in-service trains for evaluating rail corrugation, and the evaluation has primarily relied on axle-box acceleration (ABA). However, the ABA measurements require a higher threshold for vibration detection. This study introduces a novel approach to rail corrugation detection by carriage floor acceleration (CFA), aimed at lowering the detection threshold. The method capitalizes on the acceleration data sensed on the carriage floor, which is induced by the sound pressure (e.g., sound-field excitation) generated at the wheel–rail contact point. An exploration of the correlation between these datasets is undertaken by simultaneously measuring both ABA and CFA. Moreover, a pivotal aspect of this research is the development of the eigenfrequency rail corrugation index (E-RCI), a mechanism that culminates energy around specific eigenfrequencies by CFA. Through this index, a focused analysis of rail corrugation patterns is facilitated. The study further delves into the stability, repeatability, and sensitivity of the E-RCI via varied measurement scenarios. Ultimately, the CFA-based rail corrugation identification is verified, establishing its practical applicability and offering a distinct approach to detecting and characterizing rail corrugation phenomena. This study has introduced an innovative methodology for rail corrugation detection using CFA, with the principal objective of lowering the detection threshold. This approach offers an efficient measurement technique for identifying rail corrugation areas, thereby potentially reducing maintenance costs and enhancing efficiency within the railway industry. MDPI 2023-08-30 /pmc/articles/PMC10490596/ /pubmed/37687994 http://dx.doi.org/10.3390/s23177539 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hsu, Wei-Lun
Chang, Chia-Ming
Rail Corrugation Index Development by Sound-Field Excitation on the Carriage Floor of In-Service Train
title Rail Corrugation Index Development by Sound-Field Excitation on the Carriage Floor of In-Service Train
title_full Rail Corrugation Index Development by Sound-Field Excitation on the Carriage Floor of In-Service Train
title_fullStr Rail Corrugation Index Development by Sound-Field Excitation on the Carriage Floor of In-Service Train
title_full_unstemmed Rail Corrugation Index Development by Sound-Field Excitation on the Carriage Floor of In-Service Train
title_short Rail Corrugation Index Development by Sound-Field Excitation on the Carriage Floor of In-Service Train
title_sort rail corrugation index development by sound-field excitation on the carriage floor of in-service train
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10490596/
https://www.ncbi.nlm.nih.gov/pubmed/37687994
http://dx.doi.org/10.3390/s23177539
work_keys_str_mv AT hsuweilun railcorrugationindexdevelopmentbysoundfieldexcitationonthecarriagefloorofinservicetrain
AT changchiaming railcorrugationindexdevelopmentbysoundfieldexcitationonthecarriagefloorofinservicetrain