Failure Analysis and Structural Optimization for Elastic Element of High-speed Pantograph
The elastic element of high-speed pantograph is used to relieve the shock and vibration between pantograph and catenary to ensure the dynamic current collection of pantograph head is stable and reliable. The elastic element is prone to failure when it operates under complex working conditions such a...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Drive for Locomotives
2020-05-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.03.024 |
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| author | Yingyu YANG Congjian JIANG Jiejun LYU |
| author_facet | Yingyu YANG Congjian JIANG Jiejun LYU |
| author_sort | Yingyu YANG |
| collection | DOAJ |
| description | The elastic element of high-speed pantograph is used to relieve the shock and vibration between pantograph and catenary to ensure the dynamic current collection of pantograph head is stable and reliable. The elastic element is prone to failure when it operates under complex working conditions such as aerodynamic force and pantograph catenary coupling for a long time. How to solve the failure of elastic element to improve the safety and reliability becomes the key problem to improve the current collection quality of pantograph and catenary. Based on the analysis of the fatigue failure of elastic element in the application of CRH380 high-speed EMUs pantograph, the causes of the fatigue failure of elastic element were analyzed and the structure was optimized from the three aspects of elastic element structure, strength check and fatigue life test. Through the test and application, the improvement effect was fully verified. The test results show that the fatigue test life of the improved scheme is 31.8 times of that of the original scheme, the service life of elastic element is greatly improved. |
| format | Article |
| id | doaj-art-80a2fb8d07f842e7a6d265eeb46e07a4 |
| institution | OA Journals |
| issn | 1000-128X |
| language | zho |
| publishDate | 2020-05-01 |
| publisher | Editorial Department of Electric Drive for Locomotives |
| record_format | Article |
| series | 机车电传动 |
| spelling | doaj-art-80a2fb8d07f842e7a6d265eeb46e07a42025-08-20T02:28:50ZzhoEditorial Department of Electric Drive for Locomotives机车电传动1000-128X2020-05-01115117,12120921636Failure Analysis and Structural Optimization for Elastic Element of High-speed PantographYingyu YANGCongjian JIANGJiejun LYUThe elastic element of high-speed pantograph is used to relieve the shock and vibration between pantograph and catenary to ensure the dynamic current collection of pantograph head is stable and reliable. The elastic element is prone to failure when it operates under complex working conditions such as aerodynamic force and pantograph catenary coupling for a long time. How to solve the failure of elastic element to improve the safety and reliability becomes the key problem to improve the current collection quality of pantograph and catenary. Based on the analysis of the fatigue failure of elastic element in the application of CRH380 high-speed EMUs pantograph, the causes of the fatigue failure of elastic element were analyzed and the structure was optimized from the three aspects of elastic element structure, strength check and fatigue life test. Through the test and application, the improvement effect was fully verified. The test results show that the fatigue test life of the improved scheme is 31.8 times of that of the original scheme, the service life of elastic element is greatly improved.http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.03.024high-speed pantographhigh-speed EMUsaerodynamicspantograph catenary couplingfatigue failureelastic elementcatenaryfault diagnosis |
| spellingShingle | Yingyu YANG Congjian JIANG Jiejun LYU Failure Analysis and Structural Optimization for Elastic Element of High-speed Pantograph 机车电传动 high-speed pantograph high-speed EMUs aerodynamics pantograph catenary coupling fatigue failure elastic element catenary fault diagnosis |
| title | Failure Analysis and Structural Optimization for Elastic Element of High-speed Pantograph |
| title_full | Failure Analysis and Structural Optimization for Elastic Element of High-speed Pantograph |
| title_fullStr | Failure Analysis and Structural Optimization for Elastic Element of High-speed Pantograph |
| title_full_unstemmed | Failure Analysis and Structural Optimization for Elastic Element of High-speed Pantograph |
| title_short | Failure Analysis and Structural Optimization for Elastic Element of High-speed Pantograph |
| title_sort | failure analysis and structural optimization for elastic element of high speed pantograph |
| topic | high-speed pantograph high-speed EMUs aerodynamics pantograph catenary coupling fatigue failure elastic element catenary fault diagnosis |
| url | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.03.024 |
| work_keys_str_mv | AT yingyuyang failureanalysisandstructuraloptimizationforelasticelementofhighspeedpantograph AT congjianjiang failureanalysisandstructuraloptimizationforelasticelementofhighspeedpantograph AT jiejunlyu failureanalysisandstructuraloptimizationforelasticelementofhighspeedpantograph |