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Article Navigation >  Journal of Traffic and Transportation Engineering  > 2016  >  16(2): 56-63
HU Yan, DONG Bing-jie, HUANG Hai, CHEN Guang-xiong, WU Guang-ning, GAO Guo-qiang. Friction and wear behavior of carbon strip/contact wire[J]. Journal of Traffic and Transportation Engineering, 2016, 16(2): 56-63. doi: 10.19818/j.cnki.1671-1637.2016.02.007
Citation: HU Yan, DONG Bing-jie, HUANG Hai, CHEN Guang-xiong, WU Guang-ning, GAO Guo-qiang. Friction and wear behavior of carbon strip/contact wire[J]. Journal of Traffic and Transportation Engineering, 2016, 16(2): 56-63. doi: 10.19818/j.cnki.1671-1637.2016.02.007
shu

Friction and wear behavior of carbon strip/contact wire

doi: 10.19818/j.cnki.1671-1637.2016.02.007
  • 1.

    State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

  • 2.

    School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

More Information
  • Author Bio:

    HU Yan(1986-), female, doctoral student, +86-28-87634269, conrose@sina.cn

    CHEN Guang-xiong(1962-), male, professor, PhD, +86-28-87603724, chen_guangx@163.com

  • Received Date: 2015-11-07
  • Publish Date: 2016-04-25
    Abstract
  • The friction and wear tests of pure carbon strip/Cu-Ag alloy contact wire were conducted on a ring-block type tester.When the electric current was 250 A and the relative sliding speed was 160-350 km·h-1, the running condition of carbon strip/contact wire of pantograph-catenary systems for high-speed train was simulated by changing the speed of rotary table, and the influences of relative sliding speed on the friction coefficient, the current-carrying efficiency, the stability coefficient of contact pressure, the arc discharge energy, the wear rate of carbon strip, and the temperature rise of carbon strip were studied.The correlations between the six parameters and the sliding speed were studied.The wear morphologies of carbon strip were analyzed under different conditions.Analysis result shows that the friction coefficient, the current-carrying efficiency, and the stability coefficient of contact pressure decrease with the increase of relative sliding speed, while the wear rate of carbon strip, the arc discharge energy, and the temperature rise of carbon strip increase with the increase of relative sliding speed.There are strong correlations between the sliding speed and the six parameters.The positive correlations are found between the sliding speed and the stability coefficient of contact pressure, the arc discharge energy, the wear rate of carbon strip and the temperature rise of carbon strip, and the Pearson coefficients are 0.991, 0.996, 0.952, and 0.991, respectively.Meanwhile, the negative correlations are found between the sliding speed and the current-carrying efficiency and the friction coefficient, and the Pearson coefficients are -0.990 and -0.986, respectively.The wear of carbon strip increases with the increase of relative sliding speed, and there are lots of cracks on the surface of carbon strip when the relative sliding speed is faster than 250 km·h-1, and the erosion area and the depth of crack are larger, obviously.The energy-dispersive spectrometry(EDS)analysis of worn surfaces of carbon strip shows that the transfer direction of material between the carbon strip and the contact wire is bidirectional.

     

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