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A methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularities

2020-05-29Journal article Restricted access
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dc.contributor.authorSong, Yang
dc.contributor.authorAntunes, Pedro
dc.contributor.authorPombo, João
dc.contributor.authorLiu, Zhigang
dc.date.accessioned2020-06-18T15:16:59Z
dc.date.available2020-06-18T15:16:59Z
dc.date.issued2020-05-29
dc.description.abstractIn 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.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationSONG, 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. 1-18pt_PT
dc.identifier.doi10.1016/j.mechmachtheory.2020.103940pt_PT
dc.identifier.issn0094-114X
dc.identifier.urihttp://hdl.handle.net/10400.21/11886
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationUIDB/50022/2020 - FCT, through IDMEC, under LAETA projectpt_PT
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dc.subjectHigh-speed railwaypt_PT
dc.subjectPantograph-catenary interactionpt_PT
dc.subjectCatenary irregularitiespt_PT
dc.subjectShape-findingpt_PT
dc.subjectQuality of current collectionpt_PT
dc.titleA methodology to study high-speed pantograph-catenary interaction with realistic contact wire irregularitiespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage18pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleMechanism and Machine Theorypt_PT
oaire.citation.volume152
person.familyNameAntunes
person.familyNamePombo
person.givenNamePedro
person.givenNameJoão
person.identifier2438479
person.identifier.ciencia-id4613-B25C-A225
person.identifier.ciencia-id3E1A-F8C1-9B8D
person.identifier.orcid0000-0001-6910-8456
person.identifier.orcid0000-0002-5877-1989
person.identifier.ridAAE-3662-2019
person.identifier.ridB-9140-2013
person.identifier.scopus-author-id55108715000
person.identifier.scopus-author-id16022941000
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscovery3f9d71dc-07ec-481f-97ec-a9576ed5f1c4

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