Study on dynamic behaviors of catenary overlap section under the impact of dropper failure
Overlaps serve vital components of the overhead contact system (OCS) on high-speed railways, and their dynamic behaviors directly affect the current-collecting performance of the pantograph-catenary systems in the high-speed operational conditions of trains. Instances of dropper breakage and other f...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Drive for Locomotives
2024-05-01
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| Series: | 机车电传动 |
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| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2024.03.022 |
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| _version_ | 1849313122854109184 |
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| author | JIANG Hongpeng XU Yan LIU Zhendong ZHANG Shikui SUI Minjun |
| author_facet | JIANG Hongpeng XU Yan LIU Zhendong ZHANG Shikui SUI Minjun |
| author_sort | JIANG Hongpeng |
| collection | DOAJ |
| description | Overlaps serve vital components of the overhead contact system (OCS) on high-speed railways, and their dynamic behaviors directly affect the current-collecting performance of the pantograph-catenary systems in the high-speed operational conditions of trains. Instances of dropper breakage and other failures have been prevalent in overlap sections along high-speed railways, directly threatening the operational stability of the pantograph-catenary systems. Studying the dynamic behaviors of overlap sections under the influence of dropper failures holds important significance in guaranteeing the current-collecting performance of the pantograph-catenary systems. This study focused on the overlap sections within the catenary system of a high-speed railway. Based on a three-dimensional overlap model created using the finite element method, a pantograph-catenary coupling model incorporating the overlap sections was established. This model was utilized to analyze the influence of various operating speeds on the pantograph-catenary coupling contact force, and to delve into the dynamic behaviors of the overlap sections under the influence of dropper failures. The results from simulation calculations indicate the efficacy of the established model in accurately representing the dynamic behaviors. Dropper failures at the overlaps significantly degrade the current-collecting performance and the dynamic behaviors of neighboring droppers, elevating the risk of dropper breakage. Therefore, assessing the condition of droppers at overlaps is necessitated during the OCS patrol inspections. |
| format | Article |
| id | doaj-art-8b26dcfd794747e19e610736383eae6c |
| institution | Kabale University |
| issn | 1000-128X |
| language | zho |
| publishDate | 2024-05-01 |
| publisher | Editorial Department of Electric Drive for Locomotives |
| record_format | Article |
| series | 机车电传动 |
| spelling | doaj-art-8b26dcfd794747e19e610736383eae6c2025-08-20T03:52:51ZzhoEditorial Department of Electric Drive for Locomotives机车电传动1000-128X2024-05-0118218963966089Study on dynamic behaviors of catenary overlap section under the impact of dropper failureJIANG HongpengXU YanLIU ZhendongZHANG ShikuiSUI MinjunOverlaps serve vital components of the overhead contact system (OCS) on high-speed railways, and their dynamic behaviors directly affect the current-collecting performance of the pantograph-catenary systems in the high-speed operational conditions of trains. Instances of dropper breakage and other failures have been prevalent in overlap sections along high-speed railways, directly threatening the operational stability of the pantograph-catenary systems. Studying the dynamic behaviors of overlap sections under the influence of dropper failures holds important significance in guaranteeing the current-collecting performance of the pantograph-catenary systems. This study focused on the overlap sections within the catenary system of a high-speed railway. Based on a three-dimensional overlap model created using the finite element method, a pantograph-catenary coupling model incorporating the overlap sections was established. This model was utilized to analyze the influence of various operating speeds on the pantograph-catenary coupling contact force, and to delve into the dynamic behaviors of the overlap sections under the influence of dropper failures. The results from simulation calculations indicate the efficacy of the established model in accurately representing the dynamic behaviors. Dropper failures at the overlaps significantly degrade the current-collecting performance and the dynamic behaviors of neighboring droppers, elevating the risk of dropper breakage. Therefore, assessing the condition of droppers at overlaps is necessitated during the OCS patrol inspections.http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2024.03.022overlapcurrent-collecting performancepantograph-catenary systemdropper failuredropper breakagesimulationhigh-speed railway |
| spellingShingle | JIANG Hongpeng XU Yan LIU Zhendong ZHANG Shikui SUI Minjun Study on dynamic behaviors of catenary overlap section under the impact of dropper failure 机车电传动 overlap current-collecting performance pantograph-catenary system dropper failure dropper breakage simulation high-speed railway |
| title | Study on dynamic behaviors of catenary overlap section under the impact of dropper failure |
| title_full | Study on dynamic behaviors of catenary overlap section under the impact of dropper failure |
| title_fullStr | Study on dynamic behaviors of catenary overlap section under the impact of dropper failure |
| title_full_unstemmed | Study on dynamic behaviors of catenary overlap section under the impact of dropper failure |
| title_short | Study on dynamic behaviors of catenary overlap section under the impact of dropper failure |
| title_sort | study on dynamic behaviors of catenary overlap section under the impact of dropper failure |
| topic | overlap current-collecting performance pantograph-catenary system dropper failure dropper breakage simulation high-speed railway |
| url | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2024.03.022 |
| work_keys_str_mv | AT jianghongpeng studyondynamicbehaviorsofcatenaryoverlapsectionundertheimpactofdropperfailure AT xuyan studyondynamicbehaviorsofcatenaryoverlapsectionundertheimpactofdropperfailure AT liuzhendong studyondynamicbehaviorsofcatenaryoverlapsectionundertheimpactofdropperfailure AT zhangshikui studyondynamicbehaviorsofcatenaryoverlapsectionundertheimpactofdropperfailure AT suiminjun studyondynamicbehaviorsofcatenaryoverlapsectionundertheimpactofdropperfailure |