Analysis of Cracking Causes at Grounding Terminals of Bogie Axle-end and Resolution Measures
[Objective] Due to continuous changes in the operating conditions of metro lines, abnormal vibrations between wheel and rail s occasionally occur, leading to fractures in the suspension components at the bogie axle-end and affecting the safety of train operation. Therefore, it is essential to conduc...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Urban Mass Transit Magazine Press
2024-02-01
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| Series: | Chengshi guidao jiaotong yanjiu |
| Subjects: | |
| Online Access: | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2024.02.043.html |
| _version_ | 1827357992273575936 |
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| author | Xianpeng NIE Qingwei SONG Chunlai LI Xuying WANG Shilei XU Han WANG Zhuang YANG |
| author_facet | Xianpeng NIE Qingwei SONG Chunlai LI Xuying WANG Shilei XU Han WANG Zhuang YANG |
| author_sort | Xianpeng NIE |
| collection | DOAJ |
| description | [Objective] Due to continuous changes in the operating conditions of metro lines, abnormal vibrations between wheel and rail s occasionally occur, leading to fractures in the suspension components at the bogie axle-end and affecting the safety of train operation. Therefore, it is essential to conduct research on the fracture mechanisms of the axle-end suspension components. [Method] Taking the grounding terminals of bogie axle-end grounding cables of a metro train as an example, through line testing and data analysis, the reasons for grounding terminal fractures are analyzed, resolution measures involving mis-frequency design is proposed, and the feasibility is verified through on-site testing. [Result & Conclusion] The proposed resolution measures can reduce the stress at the grounding terminals from 90 MPa to approximately 30 MPa, significantly improving the stress state of the grounding terminals and enhancing their fatigue life. |
| first_indexed | 2024-03-08T05:57:13Z |
| format | Article |
| id | doaj.art-fd48a965aaf3437491db17331f06eaed |
| institution | Directory Open Access Journal |
| issn | 1007-869X |
| language | zho |
| last_indexed | 2024-03-08T05:57:13Z |
| publishDate | 2024-02-01 |
| publisher | Urban Mass Transit Magazine Press |
| record_format | Article |
| series | Chengshi guidao jiaotong yanjiu |
| spelling | doaj.art-fd48a965aaf3437491db17331f06eaed2024-02-05T01:30:07ZzhoUrban Mass Transit Magazine PressChengshi guidao jiaotong yanjiu1007-869X2024-02-0127222622910.16037/j.1007-869x.2024.02.043Analysis of Cracking Causes at Grounding Terminals of Bogie Axle-end and Resolution MeasuresXianpeng NIE0Qingwei SONG1Chunlai LI2Xuying WANG3Shilei XU4Han WANG5Zhuang YANG6CRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, ChinaCRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, ChinaCRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, ChinaCRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, ChinaCRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, ChinaCRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, ChinaCRRC Changchun Railway Vehicles Co., Ltd., 130062, Changchun, China[Objective] Due to continuous changes in the operating conditions of metro lines, abnormal vibrations between wheel and rail s occasionally occur, leading to fractures in the suspension components at the bogie axle-end and affecting the safety of train operation. Therefore, it is essential to conduct research on the fracture mechanisms of the axle-end suspension components. [Method] Taking the grounding terminals of bogie axle-end grounding cables of a metro train as an example, through line testing and data analysis, the reasons for grounding terminal fractures are analyzed, resolution measures involving mis-frequency design is proposed, and the feasibility is verified through on-site testing. [Result & Conclusion] The proposed resolution measures can reduce the stress at the grounding terminals from 90 MPa to approximately 30 MPa, significantly improving the stress state of the grounding terminals and enhancing their fatigue life.https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2024.02.043.htmlmetrobogiegrounding terminal |
| spellingShingle | Xianpeng NIE Qingwei SONG Chunlai LI Xuying WANG Shilei XU Han WANG Zhuang YANG Analysis of Cracking Causes at Grounding Terminals of Bogie Axle-end and Resolution Measures Chengshi guidao jiaotong yanjiu metro bogie grounding terminal |
| title | Analysis of Cracking Causes at Grounding Terminals of Bogie Axle-end and Resolution Measures |
| title_full | Analysis of Cracking Causes at Grounding Terminals of Bogie Axle-end and Resolution Measures |
| title_fullStr | Analysis of Cracking Causes at Grounding Terminals of Bogie Axle-end and Resolution Measures |
| title_full_unstemmed | Analysis of Cracking Causes at Grounding Terminals of Bogie Axle-end and Resolution Measures |
| title_short | Analysis of Cracking Causes at Grounding Terminals of Bogie Axle-end and Resolution Measures |
| title_sort | analysis of cracking causes at grounding terminals of bogie axle end and resolution measures |
| topic | metro bogie grounding terminal |
| url | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2024.02.043.html |
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