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dc.contributor.authorSong, Yang
dc.contributor.authorLiu, Zhigang
dc.contributor.authorRønnquist, Anders
dc.contributor.authorNåvik, Petter Juell
dc.contributor.authorLiu, Zhendong
dc.date.accessioned2021-04-15T08:03:10Z
dc.date.available2021-04-15T08:03:10Z
dc.date.created2020-05-08T13:38:44Z
dc.date.issued2020
dc.identifier.citationIEEE Transactions on Instrumentation and Measurement. 2020, 69 (10), 8196-8206.en_US
dc.identifier.issn0018-9456
dc.identifier.urihttps://hdl.handle.net/11250/2737854
dc.description.abstractIn high-speed rail operations, contact wire irregularity (CWI) in a catenary is a common disturbance to the pantograph-catenary interaction performance, which directly affects the quality of current collection. To describe the pointwise stochastics of CWI, the power spectral density (PSD) function for CWI is proposed, and its effect on the pantograph-catenary interaction is investigated. First, a preprocessing procedure is proposed to eliminate the redundant information in the measured irregularities based on the ensemble empirical mode decomposition (EEMD). Then, the upper envelope of the irregularity, which contains all the information regarding the dropper positions on the contact wire, is extracted. A form of the PSD function is suggested for contact wire irregularities. A methodology is proposed to include the effect of random irregularities in the assessment of the interaction performance of a pantograph-catenary. A developed target configuration under dead load (TCUD) method is used to calculate the initial configuration of the catenary, in which the dropper points on the contact wire are placed on their exact positions. Finally, the effect of the random contact wire irregularities on the contact force is investigated through 500 numerical simulations at each operating speed. The present results indicate that random irregularities have a direct impact on the pantograph-catenary contact, including an increment in the dispersion of the contact force statistics. The stochastic analysis shows that over 70% of the results with irregularities are worse than the ideal result without irregularities.en_US
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.subjectJernbaneen_US
dc.subjectRailwayen_US
dc.titleContact Wire Irregularity Stochastics and Effect on High-speed Railway Pantograph-Catenary Interactionsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.subject.nsiVDP::Maskinfag: 570en_US
dc.subject.nsiVDP::Mechanical engineering: 570en_US
dc.source.pagenumber8196-8206en_US
dc.source.volume69en_US
dc.source.journalIEEE Transactions on Instrumentation and Measurementen_US
dc.source.issue10en_US
dc.identifier.doi10.1109/TIM.2020.2987457
dc.identifier.cristin1809955
dc.description.localcode© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en_US
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