A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/11886 |
Resumo: | In high-speed rail operations, the irregularity of the overhead system is a typical disturbance that affects the pantograph-catenary interaction performance. The existing methods, which treat the contact wire irregularities as hard spots, overestimate the negative effect of the irregularities on the contact force, leading to conservative results. In this work, a more accurate methodology aiming to include the effect of contact wire irregularities in the assessment of the pantograph-catenary dynamic performance is proposed. Measured contact wire irregularity data, collected from the Chinese high-speed network, is added to the initial configuration of the catenary model, through a developed Target Configuration Under Dead-loads (TCUD) method. This approach is used here to investigate the effect of the contact wire irregularities on the contact forces. The results indicate that the catenary imperfections have a direct impact on the pantograph-catenary interaction, leading to an increment of the contact forces amplitude, an increase of their standard deviation and an expansion of the contact forces range. A frequency analysis of the results shows that the contact wire irregularity increases the Power Spectral Density (PSD) peaks of the contact force at specific frequencies relevant to the span length and to the dropper spacing. |
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A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularitiesHigh-speed railwayPantograph-catenary interactionCatenary irregularitiesShape-findingQuality of current collectionIn high-speed rail operations, the irregularity of the overhead system is a typical disturbance that affects the pantograph-catenary interaction performance. The existing methods, which treat the contact wire irregularities as hard spots, overestimate the negative effect of the irregularities on the contact force, leading to conservative results. In this work, a more accurate methodology aiming to include the effect of contact wire irregularities in the assessment of the pantograph-catenary dynamic performance is proposed. Measured contact wire irregularity data, collected from the Chinese high-speed network, is added to the initial configuration of the catenary model, through a developed Target Configuration Under Dead-loads (TCUD) method. This approach is used here to investigate the effect of the contact wire irregularities on the contact forces. The results indicate that the catenary imperfections have a direct impact on the pantograph-catenary interaction, leading to an increment of the contact forces amplitude, an increase of their standard deviation and an expansion of the contact forces range. A frequency analysis of the results shows that the contact wire irregularity increases the Power Spectral Density (PSD) peaks of the contact force at specific frequencies relevant to the span length and to the dropper spacing.ElsevierRCIPLSong, YangAntunes, PedroPombo, JoãoLiu, Zhigang2020-06-18T15:16:59Z2020-05-292020-05-29T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/11886engSONG, Yang; [et al] – A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities. Mechanism and Machine Theory. ISSN 0094-114X. Vol. 152 (2020), pp. 1-180094-114X10.1016/j.mechmachtheory.2020.103940metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T10:03:43Zoai:repositorio.ipl.pt:10400.21/11886Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:20:04.966639Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities |
title |
A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities |
spellingShingle |
A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities Song, Yang High-speed railway Pantograph-catenary interaction Catenary irregularities Shape-finding Quality of current collection |
title_short |
A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities |
title_full |
A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities |
title_fullStr |
A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities |
title_full_unstemmed |
A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities |
title_sort |
A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities |
author |
Song, Yang |
author_facet |
Song, Yang Antunes, Pedro Pombo, João Liu, Zhigang |
author_role |
author |
author2 |
Antunes, Pedro Pombo, João Liu, Zhigang |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Song, Yang Antunes, Pedro Pombo, João Liu, Zhigang |
dc.subject.por.fl_str_mv |
High-speed railway Pantograph-catenary interaction Catenary irregularities Shape-finding Quality of current collection |
topic |
High-speed railway Pantograph-catenary interaction Catenary irregularities Shape-finding Quality of current collection |
description |
In high-speed rail operations, the irregularity of the overhead system is a typical disturbance that affects the pantograph-catenary interaction performance. The existing methods, which treat the contact wire irregularities as hard spots, overestimate the negative effect of the irregularities on the contact force, leading to conservative results. In this work, a more accurate methodology aiming to include the effect of contact wire irregularities in the assessment of the pantograph-catenary dynamic performance is proposed. Measured contact wire irregularity data, collected from the Chinese high-speed network, is added to the initial configuration of the catenary model, through a developed Target Configuration Under Dead-loads (TCUD) method. This approach is used here to investigate the effect of the contact wire irregularities on the contact forces. The results indicate that the catenary imperfections have a direct impact on the pantograph-catenary interaction, leading to an increment of the contact forces amplitude, an increase of their standard deviation and an expansion of the contact forces range. A frequency analysis of the results shows that the contact wire irregularity increases the Power Spectral Density (PSD) peaks of the contact force at specific frequencies relevant to the span length and to the dropper spacing. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-06-18T15:16:59Z 2020-05-29 2020-05-29T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.21/11886 |
url |
http://hdl.handle.net/10400.21/11886 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
SONG, Yang; [et al] – A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities. Mechanism and Machine Theory. ISSN 0094-114X. Vol. 152 (2020), pp. 1-18 0094-114X 10.1016/j.mechmachtheory.2020.103940 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133469261955072 |