Failure analysis of the pure carbon strip affected by dynamic contact force during current-carrying sliding

Zhang, Yanyan; Wen, Xin; Chen, Zhong; Song, Chenfei; Zhang, Yongzhen

doi:10.1016/j.engfailanal.2023.107437

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Cited by 5 publications

References 30 publications

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Investigation of the enhancement in current-carrying friction performance with internal “copper network structure” constructed by pre-oxidized carbon fibers of the carbon skateboard

Liu,

Tu,

et al. 2024

Tribology International

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Investigation of the enhancement in current-carrying friction performance with internal “copper network structure” constructed by pre-oxidized carbon fibers of the carbon skateboard

Liu,

Tu,

et al. 2024

Tribology International

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Orientation-dependent tribological behavior of the graphite–diamond composite

Jin,

Lin,

Huang

et al. 2024

Tribology International

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Design and performance analysis of carbon brush collector ring end-face contact for hydro generator

Lv,

Zhao,

et al. 2024

J. Phys.: Conf. Ser.

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In hydro generators, the conventional radial contact method often results in unstable contact between carbon brush collector rings due to collector ring deflection. This paper presents a novel end-face contact method designed to enhance stability. The trajectory equations of the brush/ring contact are established when the collector ring swings and the “loss of contact” gaps of the two contact methods are compared. Further comparative analysis is conducted on the current-carrying friction wear of carbon brushes and collector rings in two contact modes. The results show that compared with the radial contact method, the brush/ring in the end-face contact method has a smaller gap and shorter time, the carbon brushes are less susceptible to spark erosion, the increase in friction coefficient and wear rate is small, and the contact resistance is lower and more stable. Scanning electron microscope analysis also shows that the spark erosion on the surface of the carbon brushes in the end contact mode is significantly weaker than that in the radial contact mode.

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Failure analysis of the pure carbon strip affected by dynamic contact force during current-carrying sliding

Cited by 5 publications

References 30 publications

Investigation of the enhancement in current-carrying friction performance with internal “copper network structure” constructed by pre-oxidized carbon fibers of the carbon skateboard

Investigation of the enhancement in current-carrying friction performance with internal “copper network structure” constructed by pre-oxidized carbon fibers of the carbon skateboard

Orientation-dependent tribological behavior of the graphite–diamond composite

Design and performance analysis of carbon brush collector ring end-face contact for hydro generator

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