Study on numerical simulation method and dynamic force of dropper of a catenary system
The dropper through bends and bears dynamic impact load before and after the train passes in actual service, which has an important impact on the fatigue life of the dropper. In this paper, a simulation model which can simulate the interaction between pantograph and catenary is established by using...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2023-01-01
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| Series: | Advances in Mechanical Engineering |
| Online Access: | https://doi.org/10.1177/16878132221143027 |
| _version_ | 1828065830383910912 |
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| author | Like Pan Liming Chen Haibo Zhang Tong Xing Caizhi Yang Guankuo Dong |
| author_facet | Like Pan Liming Chen Haibo Zhang Tong Xing Caizhi Yang Guankuo Dong |
| author_sort | Like Pan |
| collection | DOAJ |
| description | The dropper through bends and bears dynamic impact load before and after the train passes in actual service, which has an important impact on the fatigue life of the dropper. In this paper, a simulation model which can simulate the interaction between pantograph and catenary is established by using the numerical simulation method. A dropper model which can simulate the dynamic stress of the dropper is established through the beam-link combination element. The simulation result shows that among the six droppers in a span, the dynamic force of No. 1 and No. 6 droppers is the smallest, and the dynamic force of No. 3 and No. 4 droppers is the largest. The dynamic load variation characteristics of the dropper are characterized by the dynamic coefficient. When the front and rear pantograph pass through, the maximum dynamic force of the dropper appears when the rear pantograph passes through. The maximum dynamic force is located in the middle of the dropper. Through the research of this paper, the simulation method of catenary and dropper is established, and the dynamic stress process of dropper is analyzed, which lays a technical foundation for the subsequent research on the fatigue failure mechanism of dropper. |
| first_indexed | 2024-04-10T23:20:30Z |
| format | Article |
| id | doaj.art-06451c79a45945a1aaf95e35b5a3d306 |
| institution | Directory Open Access Journal |
| issn | 1687-8140 |
| language | English |
| last_indexed | 2024-04-10T23:20:30Z |
| publishDate | 2023-01-01 |
| publisher | SAGE Publishing |
| record_format | Article |
| series | Advances in Mechanical Engineering |
| spelling | doaj.art-06451c79a45945a1aaf95e35b5a3d3062023-01-12T15:03:35ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402023-01-011510.1177/16878132221143027Study on numerical simulation method and dynamic force of dropper of a catenary systemLike Pan0Liming Chen1Haibo Zhang2Tong Xing3Caizhi Yang4Guankuo Dong5Standards & Metrology Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, ChinaStandards & Metrology Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, ChinaStandards & Metrology Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, ChinaStandards & Metrology Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, ChinaStandards & Metrology Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing, ChinaSchool of Science, Beijing University of Technology, Beijing, ChinaThe dropper through bends and bears dynamic impact load before and after the train passes in actual service, which has an important impact on the fatigue life of the dropper. In this paper, a simulation model which can simulate the interaction between pantograph and catenary is established by using the numerical simulation method. A dropper model which can simulate the dynamic stress of the dropper is established through the beam-link combination element. The simulation result shows that among the six droppers in a span, the dynamic force of No. 1 and No. 6 droppers is the smallest, and the dynamic force of No. 3 and No. 4 droppers is the largest. The dynamic load variation characteristics of the dropper are characterized by the dynamic coefficient. When the front and rear pantograph pass through, the maximum dynamic force of the dropper appears when the rear pantograph passes through. The maximum dynamic force is located in the middle of the dropper. Through the research of this paper, the simulation method of catenary and dropper is established, and the dynamic stress process of dropper is analyzed, which lays a technical foundation for the subsequent research on the fatigue failure mechanism of dropper.https://doi.org/10.1177/16878132221143027 |
| spellingShingle | Like Pan Liming Chen Haibo Zhang Tong Xing Caizhi Yang Guankuo Dong Study on numerical simulation method and dynamic force of dropper of a catenary system Advances in Mechanical Engineering |
| title | Study on numerical simulation method and dynamic force of dropper of a catenary system |
| title_full | Study on numerical simulation method and dynamic force of dropper of a catenary system |
| title_fullStr | Study on numerical simulation method and dynamic force of dropper of a catenary system |
| title_full_unstemmed | Study on numerical simulation method and dynamic force of dropper of a catenary system |
| title_short | Study on numerical simulation method and dynamic force of dropper of a catenary system |
| title_sort | study on numerical simulation method and dynamic force of dropper of a catenary system |
| url | https://doi.org/10.1177/16878132221143027 |
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