Analysis on Mechanical Characteristics of Catenary Positive Feeder in Gale Area

To investigate the mechanical characteristics of catenary positive feeders under galloping state in gale areas, the aluminium cable steel reinforced (ACSR) LGJ-300/25 used in the catenary positive feeder of the LanzhouUrumqi high-speed railway is taken as an example. Then, on the basis of galloping...

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Autores principales:	Zhao Shanpeng, PengWang, Shaoxiang Zhao, Youpeng Zhang, Wei Ge
Formato:	article
Lenguaje:	EN
Publicado:	Tamkang University Press 2021
Materias:	catenary positive feeder mechanical characteristics galloping acsr finite element method Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Physics QC1-999
Acceso en línea:	https://doaj.org/article/85c1dead09e6483491435afaddc84b34
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spelling	oai:doaj.org-article:85c1dead09e6483491435afaddc84b342021-11-23T18:54:14ZAnalysis on Mechanical Characteristics of Catenary Positive Feeder in Gale Area10.6180/jase.202204_25(2).00182708-99672708-9975https://doaj.org/article/85c1dead09e6483491435afaddc84b342021-11-01T00:00:00Zhttp://jase.tku.edu.tw/articles/jase-202204-25-2-0018https://doaj.org/toc/2708-9967https://doaj.org/toc/2708-9975To investigate the mechanical characteristics of catenary positive feeders under galloping state in gale areas, the aluminium cable steel reinforced (ACSR) LGJ-300/25 used in the catenary positive feeder of the LanzhouUrumqi high-speed railway is taken as an example. Then, on the basis of galloping amplitude and frequency, the tension on the conductor is deduced. In accordance with the structural and material characteristics of the conductor, a 3D finite element model of the positive feeder is constructed by ABAQUS software. The correctness of the model is verified by comparing the theoretical calculation and simulation results of tension stratification. Different tensile loads are applied to the model to simulate the force of the positive feeder under different galloping degrees, and the mechanical changes of the whole and sections of the steel and aluminium strands are analysed. Results show that under tensile load, the overall deformation of the positive feeder presents a stepped distribution, and the tension of the steel core and aluminium strand varies from inside to outside; the tension ratio is approximately 3:2. The stress at the outlet of the suspension clamp is complex and prone to stress concentration, which mainly causes the fatigue damage of the positive feeder. The results of this study can provide a theoretical reference for the selection and optimal design of electrified railway conductors in gale areas.Zhao ShanpengPengWangShaoxiang ZhaoYoupeng ZhangWei GeTamkang University Pressarticlecatenary positive feedermechanical characteristicsgallopingacsrfinite element methodEngineering (General). Civil engineering (General)TA1-2040Chemical engineeringTP155-156PhysicsQC1-999ENJournal of Applied Science and Engineering, Vol 25, Iss 2, Pp 327-340 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	catenary positive feeder mechanical characteristics galloping acsr finite element method Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Physics QC1-999
spellingShingle	catenary positive feeder mechanical characteristics galloping acsr finite element method Engineering (General). Civil engineering (General) TA1-2040 Chemical engineering TP155-156 Physics QC1-999 Zhao Shanpeng PengWang Shaoxiang Zhao Youpeng Zhang Wei Ge Analysis on Mechanical Characteristics of Catenary Positive Feeder in Gale Area
description	To investigate the mechanical characteristics of catenary positive feeders under galloping state in gale areas, the aluminium cable steel reinforced (ACSR) LGJ-300/25 used in the catenary positive feeder of the LanzhouUrumqi high-speed railway is taken as an example. Then, on the basis of galloping amplitude and frequency, the tension on the conductor is deduced. In accordance with the structural and material characteristics of the conductor, a 3D finite element model of the positive feeder is constructed by ABAQUS software. The correctness of the model is verified by comparing the theoretical calculation and simulation results of tension stratification. Different tensile loads are applied to the model to simulate the force of the positive feeder under different galloping degrees, and the mechanical changes of the whole and sections of the steel and aluminium strands are analysed. Results show that under tensile load, the overall deformation of the positive feeder presents a stepped distribution, and the tension of the steel core and aluminium strand varies from inside to outside; the tension ratio is approximately 3:2. The stress at the outlet of the suspension clamp is complex and prone to stress concentration, which mainly causes the fatigue damage of the positive feeder. The results of this study can provide a theoretical reference for the selection and optimal design of electrified railway conductors in gale areas.
format	article
author	Zhao Shanpeng PengWang Shaoxiang Zhao Youpeng Zhang Wei Ge
author_facet	Zhao Shanpeng PengWang Shaoxiang Zhao Youpeng Zhang Wei Ge
author_sort	Zhao Shanpeng
title	Analysis on Mechanical Characteristics of Catenary Positive Feeder in Gale Area
title_short	Analysis on Mechanical Characteristics of Catenary Positive Feeder in Gale Area
title_full	Analysis on Mechanical Characteristics of Catenary Positive Feeder in Gale Area
title_fullStr	Analysis on Mechanical Characteristics of Catenary Positive Feeder in Gale Area
title_full_unstemmed	Analysis on Mechanical Characteristics of Catenary Positive Feeder in Gale Area
title_sort	analysis on mechanical characteristics of catenary positive feeder in gale area
publisher	Tamkang University Press
publishDate	2021
url	https://doaj.org/article/85c1dead09e6483491435afaddc84b34
work_keys_str_mv	AT zhaoshanpeng analysisonmechanicalcharacteristicsofcatenarypositivefeederingalearea AT pengwang analysisonmechanicalcharacteristicsofcatenarypositivefeederingalearea AT shaoxiangzhao analysisonmechanicalcharacteristicsofcatenarypositivefeederingalearea AT youpengzhang analysisonmechanicalcharacteristicsofcatenarypositivefeederingalearea AT weige analysisonmechanicalcharacteristicsofcatenarypositivefeederingalearea
_version_	1718416162564341760

Analysis on Mechanical Characteristics of Catenary Positive Feeder in Gale Area

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