悬链线
材料科学
受电弓
碳纤维
接触电阻
摩擦学
复合材料
电接点
结构工程
机械工程
工程类
图层(电子)
复合数
作者
Xin-long Liu,Chuanjun Tu,Yanli Liu,Gaimei Ren,Yixing Chen,Jiao Tan,Xuejun Huang
标识
DOI:10.1080/10402004.2023.2238946
摘要
AbstractThe poor matching performance of a carbon skateboard and contact wire leads to abnormal wear of a rigid pantograph–catenary system. However, an effective response strategy for reducing the frequency of abnormal wear of the arch network has not been achieved. In this article, the friction and wear properties of pure carbon and copper-impregnated carbon skateboards are used to investigate and compare the friction properties under different working conditions. The experimental results show that the contact resistance of the pure carbon skateboard/contact wire increases from 12 mΩ to 45 mΩ with increasing current and shows an overall low friction coefficient. The contact resistance of the copper-impregnated carbon skateboard/contact wire fluctuates in the range of 4 mΩ to 16 mΩ, with a relatively high friction coefficient. A high current density accelerates the electrical wear behavior and temperature increase of the interface of the pure carbon skateboard/contact wire. A matching strategy of carbon skateboard and contact wire is proposed by comparing the friction coefficient, contact resistance, and wear rate.Keywords: Carbon skateboardcurrent-carrying wearmatching performancewear mechanisminterface temperature Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by the National Natural Science Foundation of China (grant no. 51905172, 51837009), China Postdoctoral Science Foundation (2021M701152), and Natural Science Foundation of Jiangxi, China (20224BAB204014, GJJ2200625).
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