Correlation Analysis of Contact Wire Wear and Its Influencing Factors Based on Grey Correlation Method
［Objective］ Since the metro system suffers from abnormal wear problem of contact wires, it is necessary to explore the data correlation degree between the key data of the pantograph catenary (PC) system and the contact line wear thickness. ［Method］ PC tests are conducted on the actual line, and meas...
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| Format: | Article |
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Urban Mass Transit Magazine Press
2025-04-01
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| Series: | Chengshi guidao jiaotong yanjiu |
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| Online Access: | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.04.018.html |
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| author | GUO Yingqiang QI Wenyan |
| author_facet | GUO Yingqiang QI Wenyan |
| author_sort | GUO Yingqiang |
| collection | DOAJ |
| description | ［Objective］ Since the metro system suffers from abnormal wear problem of contact wires, it is necessary to explore the data correlation degree between the key data of the pantograph catenary (PC) system and the contact line wear thickness. ［Method］ PC tests are conducted on the actual line, and measured data such as dynamic contact force, train running speed, vertical acceleration of the contact strip, arcing duration, bus current, catenary stagger value and contact wire wear thickness are obtained. The proportion of each factor′s contribution to the wear thickness of contact wire is analyzed by grey correlation method. ［Result & Conclusion］ The train running speed directly affects the wear thickness of the contact wire, and its influence accounts for the largest proportion, followed by the dynamic contact force. Other factors are ranked from large to small in terms of influence proportion as follows: arcing duration, bus current, catenary stagger value, and vertical acceleration of the contact strip. |
| format | Article |
| id | doaj-art-80cbb14d4ea54feab2374264b69b4caf |
| institution | DOAJ |
| issn | 1007-869X |
| language | zho |
| publishDate | 2025-04-01 |
| publisher | Urban Mass Transit Magazine Press |
| record_format | Article |
| series | Chengshi guidao jiaotong yanjiu |
| spelling | doaj-art-80cbb14d4ea54feab2374264b69b4caf2025-08-20T02:56:08ZzhoUrban Mass Transit Magazine PressChengshi guidao jiaotong yanjiu1007-869X2025-04-01284969910.16037/j.1007-869x.2025.04.018Correlation Analysis of Contact Wire Wear and Its Influencing Factors Based on Grey Correlation MethodGUO Yingqiang0QI Wenyan1CRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, ChinaState Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, 610031, Chengdu, China［Objective］ Since the metro system suffers from abnormal wear problem of contact wires, it is necessary to explore the data correlation degree between the key data of the pantograph catenary (PC) system and the contact line wear thickness. ［Method］ PC tests are conducted on the actual line, and measured data such as dynamic contact force, train running speed, vertical acceleration of the contact strip, arcing duration, bus current, catenary stagger value and contact wire wear thickness are obtained. The proportion of each factor′s contribution to the wear thickness of contact wire is analyzed by grey correlation method. ［Result & Conclusion］ The train running speed directly affects the wear thickness of the contact wire, and its influence accounts for the largest proportion, followed by the dynamic contact force. Other factors are ranked from large to small in terms of influence proportion as follows: arcing duration, bus current, catenary stagger value, and vertical acceleration of the contact strip.https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.04.018.htmlmetrocontact wirewear detectiongrey correlation method |
| spellingShingle | GUO Yingqiang QI Wenyan Correlation Analysis of Contact Wire Wear and Its Influencing Factors Based on Grey Correlation Method Chengshi guidao jiaotong yanjiu metro contact wire wear detection grey correlation method |
| title | Correlation Analysis of Contact Wire Wear and Its Influencing Factors Based on Grey Correlation Method |
| title_full | Correlation Analysis of Contact Wire Wear and Its Influencing Factors Based on Grey Correlation Method |
| title_fullStr | Correlation Analysis of Contact Wire Wear and Its Influencing Factors Based on Grey Correlation Method |
| title_full_unstemmed | Correlation Analysis of Contact Wire Wear and Its Influencing Factors Based on Grey Correlation Method |
| title_short | Correlation Analysis of Contact Wire Wear and Its Influencing Factors Based on Grey Correlation Method |
| title_sort | correlation analysis of contact wire wear and its influencing factors based on grey correlation method |
| topic | metro contact wire wear detection grey correlation method |
| url | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2025.04.018.html |
| work_keys_str_mv | AT guoyingqiang correlationanalysisofcontactwirewearanditsinfluencingfactorsbasedongreycorrelationmethod AT qiwenyan correlationanalysisofcontactwirewearanditsinfluencingfactorsbasedongreycorrelationmethod |