Comparative Investigation Into the Current-Carrying Wear Properties of Two Kinds of Carbon Skateboard/Wire Contact Under Different Conditions

IF 2 3区工程技术 Q2 ENGINEERING, MECHANICAL

Tribology Transactions Pub Date : 2023-07-31 DOI:10.1080/10402004.2023.2238946

Xin-long Liu, Chuanjun Tu, Yanli Liu, Gaimei Ren, Yixing Chen, Jiao Tan, Xia Huang

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Abstract

Abstract The 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.

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两种碳滑板/导线在不同条件下的载流磨损性能对比研究

摘要碳滑板与接触网的匹配性能差，导致刚性弓网系统的异常磨损。然而，尚未实现降低拱形网络异常磨损频率的有效响应策略。本文采用纯碳和铜浸碳滑板的摩擦磨损性能，对不同工况下的摩擦性能进行了研究和比较。实验结果表明，随着电流的增加，纯碳滑板/接触线的接触电阻从12mΩ增加到45mΩ，总体上表现出较低的摩擦系数。浸铜碳滑板/接触线的接触电阻在4 mΩ至16 mΩ的范围内波动，摩擦系数相对较高。高电流密度加速了纯碳滑板/接触线的界面的电磨损行为和温度升高。通过比较摩擦系数、接触电阻和磨损率，提出了碳滑板与接触线的匹配策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Tribology Transactions 工程技术-工程：机械

CiteScore

3.90

自引率

4.80%

发文量

审稿时长

4 months

期刊介绍： Tribology Transactions contains experimental and theoretical papers on friction, wear, lubricants, lubrication, materials, machines and moving components, from the macro- to the nano-scale. The papers will be of interest to academic, industrial and government researchers and technologists working in many fields, including: Aerospace, Agriculture & Forest, Appliances, Automotive, Bearings, Biomedical Devices, Condition Monitoring, Engines, Gears, Industrial Engineering, Lubricants, Lubricant Additives, Magnetic Data Storage, Manufacturing, Marine, Materials, MEMs and NEMs, Mining, Power Generation, Metalworking Fluids, Seals, Surface Engineering and Testing and Analysis. All submitted manuscripts are subject to initial appraisal by the Editor-in-Chief and, if found suitable for further consideration, are submitted for peer review by independent, anonymous expert referees. All peer review in single blind and submission is online via ScholarOne Manuscripts.