Simulation analysis on fatigue damage mechanism and life assessment of rigid catenary pillar of railway lines
Purpose – As a key structure in the railway power supply system, the overhead catenary pillar carries the entire weight and dynamic load of the contact suspension device and supporting equipment. Its stability and reliability are directly related to the operational safety and efficiency of electrifi...
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| Format: | Article |
| Language: | English |
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Emerald Publishing
2025-06-01
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| Series: | Railway Sciences |
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| Online Access: | https://www.emerald.com/insight/content/doi/10.1108/RS-01-2025-0001/full/pdf |
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| author | Wei Du Suxia Zhou Zhongyu Yi Ruohan Xiang Yishuo Liu Zhenping Shi Shanqing Peng |
| author_facet | Wei Du Suxia Zhou Zhongyu Yi Ruohan Xiang Yishuo Liu Zhenping Shi Shanqing Peng |
| author_sort | Wei Du |
| collection | DOAJ |
| description | Purpose – As a key structure in the railway power supply system, the overhead catenary pillar carries the entire weight and dynamic load of the contact suspension device and supporting equipment. Its stability and reliability are directly related to the operational safety and efficiency of electrified railways. Design/methodology/approach – Regarding the phenomenon of abnormal shedding of coating above the support under the cantilever of the catenary pillar in the track running line, a three-dimensional model is established to analyse the rigid cantilever type catenary and the force analysis of the cantilever part is carried out by using ABAQUS to calculate the contact force of the bow network under different running speeds of the high-speed train. The load is applied at the locator end of the simplified model of the cantilever to get the support reaction force at the connection between the cantilever and the support. Findings – The support reaction force is applied as a load to the three-dimensional model of the pillar support; the stress cloud and the stress extreme value of 86.14 MPa are obtained for the pillar and the support part and the fatigue life of the pillar’s key parts is calculated to be 12.02 years, respectively. Originality/value – The upper part of the lower support of the high-speed rail catenary pillar is subjected to the alternating load transmitted by the bow net, which causes the fretting damage at this position, resulting in the abnormal peeling of the coating on the upper part of the lower support. Through combining the ABAQUS analysis with the structural characteristics and operating conditions of the catenary system, the main causes of component failure are determined. |
| format | Article |
| id | doaj-art-cc88519fcd7d4b599ab56d2632a9a0b7 |
| institution | Kabale University |
| issn | 2755-0907 2755-0915 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Emerald Publishing |
| record_format | Article |
| series | Railway Sciences |
| spelling | doaj-art-cc88519fcd7d4b599ab56d2632a9a0b72025-08-20T03:31:51ZengEmerald PublishingRailway Sciences2755-09072755-09152025-06-014333735510.1108/RS-01-2025-0001Simulation analysis on fatigue damage mechanism and life assessment of rigid catenary pillar of railway linesWei Du0Suxia Zhou1Zhongyu Yi2Ruohan Xiang3Yishuo Liu4Zhenping Shi5Shanqing Peng6China Academy of Railway Sciences Corporation Limited, Metals and Chemistry Research Institute, Beijing, ChinaSchool of Mechanical and Electrical Engineering and Vehicle Engineering, Beijing Jianzhu University, Beijing, ChinaChina Academy of Railway Sciences Corporation Limited, Metals and Chemistry Research Institute, Beijing, ChinaChina Academy of Railway Sciences Corporation Limited, Metals and Chemistry Research Institute, Beijing, ChinaChina Academy of Railway Sciences Corporation Limited, Metals and Chemistry Research Institute, Beijing, ChinaChina Academy of Railway Sciences Corporation Limited, Metals and Chemistry Research Institute, Beijing, ChinaChina Academy of Railway Sciences Corporation Limited, Metals and Chemistry Research Institute, Beijing, ChinaPurpose – As a key structure in the railway power supply system, the overhead catenary pillar carries the entire weight and dynamic load of the contact suspension device and supporting equipment. Its stability and reliability are directly related to the operational safety and efficiency of electrified railways. Design/methodology/approach – Regarding the phenomenon of abnormal shedding of coating above the support under the cantilever of the catenary pillar in the track running line, a three-dimensional model is established to analyse the rigid cantilever type catenary and the force analysis of the cantilever part is carried out by using ABAQUS to calculate the contact force of the bow network under different running speeds of the high-speed train. The load is applied at the locator end of the simplified model of the cantilever to get the support reaction force at the connection between the cantilever and the support. Findings – The support reaction force is applied as a load to the three-dimensional model of the pillar support; the stress cloud and the stress extreme value of 86.14 MPa are obtained for the pillar and the support part and the fatigue life of the pillar’s key parts is calculated to be 12.02 years, respectively. Originality/value – The upper part of the lower support of the high-speed rail catenary pillar is subjected to the alternating load transmitted by the bow net, which causes the fretting damage at this position, resulting in the abnormal peeling of the coating on the upper part of the lower support. Through combining the ABAQUS analysis with the structural characteristics and operating conditions of the catenary system, the main causes of component failure are determined.https://www.emerald.com/insight/content/doi/10.1108/RS-01-2025-0001/full/pdfCatenaryFretting damageABAQUSCoating |
| spellingShingle | Wei Du Suxia Zhou Zhongyu Yi Ruohan Xiang Yishuo Liu Zhenping Shi Shanqing Peng Simulation analysis on fatigue damage mechanism and life assessment of rigid catenary pillar of railway lines Railway Sciences Catenary Fretting damage ABAQUS Coating |
| title | Simulation analysis on fatigue damage mechanism and life assessment of rigid catenary pillar of railway lines |
| title_full | Simulation analysis on fatigue damage mechanism and life assessment of rigid catenary pillar of railway lines |
| title_fullStr | Simulation analysis on fatigue damage mechanism and life assessment of rigid catenary pillar of railway lines |
| title_full_unstemmed | Simulation analysis on fatigue damage mechanism and life assessment of rigid catenary pillar of railway lines |
| title_short | Simulation analysis on fatigue damage mechanism and life assessment of rigid catenary pillar of railway lines |
| title_sort | simulation analysis on fatigue damage mechanism and life assessment of rigid catenary pillar of railway lines |
| topic | Catenary Fretting damage ABAQUS Coating |
| url | https://www.emerald.com/insight/content/doi/10.1108/RS-01-2025-0001/full/pdf |
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