Bending fatigue life evaluation of Cu-Mg alloy contact wire

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• 作者：Guo Zhen (1)
  Yongseok Kim (1)
  Li Haochuang (1)
  Jae-Mean Koo (1)
  Chang-Sung Seok (1)
  Kiwon Lee (2)
  Sam-Young Kwon (2)
  
• 关键词：Cu ; Mg contact wire ; Bending fatigue test ; Operating condition ; Copper alloy
• 刊名：International Journal of Precision Engineering and Manufacturing
• 出版年：2014
• 出版时间：July 2014
• 年：2014
• 卷：15
• 期：7
• 页码：1331-1335
• 全文大小：2,824 KB
• 参考文献：1. Ding, T., Chen, G., Bu, J., and Zhang, W., “Effect of Temperature and Arc Discharge on Friction and Wear Behaviours of Carbon Strip/ Copper Contact Wire in Pantograph-Catenary Systems,-Wear, Vol. 271, No. 9, pp. 1629-636, 2011. CrossRef
  2. Um, K. Y., “Development of Test-Bed and Infra Technologies for 400 km/h High Speed Rail Way,-Railway Journal, Vol. 8, pp. 55-0, 2012.
  3. Kang, M., Ahn, S., Koo, J. M., Seok, C. S., Lee, K., and Cho, Y. H., “Development of Bending Fatigue Test System for Trolley Line Simulating Real Conditions,-Proc. of Autumn Conference of the Korean Society for Railway, pp. 3059-064, 2011.
  4. Yamashita, C. and Sugahara, A., “Influence of Mean Stress on Contact Wire Fatigue,-Railway Technical Research Institute, Quarterly Reports, Vol. 47, No. 1, pp. 46-1, 2006.
  5. Galeotti, G. and Toni, P., “Overhead Contact Line Elasticity Optimization for Railway High Speed Running,-Computers & Structures, Vol. 65, No. 6, pp. 975-83, 1997. CrossRef
  6. Kim, Y. S., Li, H. C., Kang, M. S., Koo, J. M., Seok, C. S., and et al., “Bending Fatigue Life Evaluation of Pure Copper and Copper Alloy Contact Wire,-J. Korean Soc. Precis. Eng., Vol. 29, No. 12, pp. 1346-350, 2012. CrossRef
  7. Pupke, F., “Optimization and development of contact wire for high speed lines,-Proc. of 8th World Congress on Railway Research, 2008.
  
• 作者单位：Guo Zhen (1)
  Yongseok Kim (1)
  Li Haochuang (1)
  Jae-Mean Koo (1)
  Chang-Sung Seok (1)
  Kiwon Lee (2)
  Sam-Young Kwon (2)
  
  1. School of Mechanical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon-si, Gteonghi-do, South Korea
  2. Korea Railroad Research Institute, 176, Cheoldobangmulgwan-ro, Uiwang-si, Gyeonggi-do, South Korea
  
• ISSN：2005-4602

文摘

Contact wire is one of the most important components used to supply electricity to railway vehicles which equipped with a pantograph. When the speed of electric vehicle is not as high as now, the failure of contact wire caused by friction and wear behaviors of carbon strip/contact wire were considered more important. But the fatigue fracture become more and more important for the failure of contact wires on account of several fatigue fractures happened while the speed of electric vehicle increase continuously. A bending fatigue tester simulating the working conditions of contact wires developed by Kang and etc has been used to evaluate the fatigue characteristic of pure copper and Cu-Sn alloy contact wires. In this study, this bending fatigue tester also is used to evaluate the fatigue characteristics of Cu-Mg alloy contact wire which developed for 400km/h high speed rail in Korea. Test result is also compared with the result of Kang’s research on pure copper contact wire. Finally, in order to evaluate the fatigue life of contact wires for any mean stress, the relationships between plastic strain and fatigue life were abstained for two kinds of contact wires combined the FE analysis.