RESEARCH ON PROPAGATION CHARACTERISTICS OF FATIGUE CRACK AND LIFE PREDICTION FOR THE PANTOGRAPH
The three-dimensional finite element model of the pantograph was established by the finite element software,and the propagation characteristics of fatigue crack at the end of the upper frame for the pantograph were studied by the fracture analysis software Franc3 D. The fatigue crack propagation lif...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2021-01-01
|
| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.05.024 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841535934965743616 |
|---|---|
| author | JING SuoLi JIA BuChao YU YanZun ZHOU Ning LI Jing LIU JiuRui CHENG Yao |
| author_facet | JING SuoLi JIA BuChao YU YanZun ZHOU Ning LI Jing LIU JiuRui CHENG Yao |
| author_sort | JING SuoLi |
| collection | DOAJ |
| description | The three-dimensional finite element model of the pantograph was established by the finite element software,and the propagation characteristics of fatigue crack at the end of the upper frame for the pantograph were studied by the fracture analysis software Franc3 D. The fatigue crack propagation life under normal temperature,atmospheric environment and corrosion environment were predicted. The results show that when a 2 mm surface crack has been produced at the end of pantograph upper frame,it will penetrate the pipe wall when it continues to expand to a surface length of about 15 mm. For normal temperature and atmospheric environment,the operation mileage of fatigue crack extension from 2 mm surface crack to 50 mm through crack is about 240 000 km. In the corrosive environment,the operation mileage of surface cracks extension to the same length is about31 900 km. |
| format | Article |
| id | doaj-art-4e16b32f591b40929f4317fee95defd3 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2021-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-4e16b32f591b40929f4317fee95defd32025-01-15T02:25:33ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692021-01-01431191119730612106RESEARCH ON PROPAGATION CHARACTERISTICS OF FATIGUE CRACK AND LIFE PREDICTION FOR THE PANTOGRAPHJING SuoLiJIA BuChaoYU YanZunZHOU NingLI JingLIU JiuRuiCHENG YaoThe three-dimensional finite element model of the pantograph was established by the finite element software,and the propagation characteristics of fatigue crack at the end of the upper frame for the pantograph were studied by the fracture analysis software Franc3 D. The fatigue crack propagation life under normal temperature,atmospheric environment and corrosion environment were predicted. The results show that when a 2 mm surface crack has been produced at the end of pantograph upper frame,it will penetrate the pipe wall when it continues to expand to a surface length of about 15 mm. For normal temperature and atmospheric environment,the operation mileage of fatigue crack extension from 2 mm surface crack to 50 mm through crack is about 240 000 km. In the corrosive environment,the operation mileage of surface cracks extension to the same length is about31 900 km.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.05.024PantographFatigueCrackPropagationLifeCorrosion environment |
| spellingShingle | JING SuoLi JIA BuChao YU YanZun ZHOU Ning LI Jing LIU JiuRui CHENG Yao RESEARCH ON PROPAGATION CHARACTERISTICS OF FATIGUE CRACK AND LIFE PREDICTION FOR THE PANTOGRAPH Jixie qiangdu Pantograph Fatigue Crack Propagation Life Corrosion environment |
| title | RESEARCH ON PROPAGATION CHARACTERISTICS OF FATIGUE CRACK AND LIFE PREDICTION FOR THE PANTOGRAPH |
| title_full | RESEARCH ON PROPAGATION CHARACTERISTICS OF FATIGUE CRACK AND LIFE PREDICTION FOR THE PANTOGRAPH |
| title_fullStr | RESEARCH ON PROPAGATION CHARACTERISTICS OF FATIGUE CRACK AND LIFE PREDICTION FOR THE PANTOGRAPH |
| title_full_unstemmed | RESEARCH ON PROPAGATION CHARACTERISTICS OF FATIGUE CRACK AND LIFE PREDICTION FOR THE PANTOGRAPH |
| title_short | RESEARCH ON PROPAGATION CHARACTERISTICS OF FATIGUE CRACK AND LIFE PREDICTION FOR THE PANTOGRAPH |
| title_sort | research on propagation characteristics of fatigue crack and life prediction for the pantograph |
| topic | Pantograph Fatigue Crack Propagation Life Corrosion environment |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2021.05.024 |
| work_keys_str_mv | AT jingsuoli researchonpropagationcharacteristicsoffatiguecrackandlifepredictionforthepantograph AT jiabuchao researchonpropagationcharacteristicsoffatiguecrackandlifepredictionforthepantograph AT yuyanzun researchonpropagationcharacteristicsoffatiguecrackandlifepredictionforthepantograph AT zhouning researchonpropagationcharacteristicsoffatiguecrackandlifepredictionforthepantograph AT lijing researchonpropagationcharacteristicsoffatiguecrackandlifepredictionforthepantograph AT liujiurui researchonpropagationcharacteristicsoffatiguecrackandlifepredictionforthepantograph AT chengyao researchonpropagationcharacteristicsoffatiguecrackandlifepredictionforthepantograph |