Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Bending Fatigue Life Evaluation of Pure Copper and Copper Alloy Contact Wire

동 전차선(Cu) 및 동합금 전차선(CuSn)의 굽힘피로 수명 평가

  • Kim, Yongseok (Department of Mechanical Engineering, Graduate School, Sungkyunkwan Univ.) ;
  • Li, Haochuang (Department of Mechanical Engineering, Graduate School, Sungkyunkwan Univ.) ;
  • Kang, Minsung (Department of Mechanical Engineering, Graduate School, Sungkyunkwan Univ.) ;
  • Koo, Jae-Mean (Department of Mechanical Engineering, Sungkyunkwan Univ.) ;
  • Seok, Chang-Sung (Department of Mechanical Engineering, Sungkyunkwan Univ.) ;
  • Lee, Kiwon (Korea Railroad Research Institute) ;
  • Kwon, Sam-Young (Korea Railroad Research Institute)
  • Received : 2012.04.04
  • Accepted : 2012.09.11
  • Published : 2012.12.01
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Abstract

Contact wire is one of the most important components supplying electricity to railroad cars. At the beginning of the research on contact wire, wear problem caused by friction between contact wire and pantograph was considered even more important issue for the failure of contact wire. However, since several fatigue fractures were reported from Shinkansen in Japan, fatigue fracture has become another important issue for the failure of contact wire. Despite of its importance, standard of the fatigue test of contact wire has not been established yet. Thus, fatigue characteristics of contact wire is very difficult issue to evaluate quantitatively. Hence, in this study, test method simulating operating conditions of contact wire by Minsung Kang and etc. is used to evaluate the fatigue characteristics of copper alloy contact wire. Also, test results is compared with the result of Minsung Kang's research on pure copper contact wire.

Keywords

References

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