Tribological and electric-arc behaviors of carbon/copper pair during sliding friction process with electric current applied

Lin, Xiuzhou; Zhu, Minhao; Mo, Jiliang; Chen, Guangxiong; Jin, Xuesong; Zhou, Zhongrong

doi:10.1016/s1003-6326(11)60712-7

Cited by 38 publications

(12 citation statements)

References 11 publications

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“…Recent progress in lubrication has been reported in areas such as bio-lubricants, mineral oil-based lubricants, nanoparticle additives, and carbon nanotube-based lubricants, among others (Rensselar, 2010;Zin et al, 2016;Syahir et al, 2017;Dassenoy, 2019;Narita and Takekawa, 2019). The research efforts on lubricants have been of obtaining higher resistance to copper corrosion and compatibility with polymers employed in the electronic components of EV/HEV (Lin et al, 2011;Hunt et al, 2017). This involves the design of new standard test methods to measure properties in EVs (Hunt, 2017).…”

Section: Needs and Challenges In Electric And Hybrid Vehiclesmentioning

confidence: 99%

Performance Characteristics of Lubricants in Electric and Hybrid Vehicles: A Review of Current and Future Needs

et al. 2020

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Electric and hybrid vehicles are gaining increasing attention in recent years. The distinguished difference between electric/hybrid vehicles from conventional ones is the intermittent on-and-off control of the internal combustion engine, whereas the electric vehicles operate on electrical motors. This difference creates new requirements in lubricants with performance characteristics that are otherwise uncritical: electrical properties (such as electrical conductivity and breakdown voltage) and thermal properties (thermal conductivity, specific heat, among others), in addition to fluidic performance that we have studied for decades. In this review, we discuss about lubricants for electric and hybrid vehicles in the following aspects. Starting with a brief historic review, we gathered information about current needs and challenges in electric and hybrid vehicles. We then compared the properties of lubricants, followed by the performance difference of those vehicles in terms of frictional performance, thermal management, and dielectric breakdown. Performance parameters are critically dependent on the properties of lubricants that are crucial for energy efficiency and reliability. This review can be used as a guidance for the future design of advanced lubricants for electric and hybrid vehicles.

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Section: Needs and Challenges In Electric And Hybrid Vehiclesmentioning

confidence: 99%

Performance Characteristics of Lubricants in Electric and Hybrid Vehicles: A Review of Current and Future Needs

et al. 2020

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“…Carbon brushes, as an important part of hydroelectric power generation systems, are usually used to transmit current and energy in hydroelectric power plants. [1][2][3][4][5] However, there are various problems in the excitation system of hydro-generator, such as carbon brush sparking, severe wear of the collector ring, and greasy pollution of the side of the carbon brush and collector ring. In order to avoid the severe sparking phenomenon of the carbon brush, a larger spring pressure is required, but in order to avoid a severe mechanical wear of the carbon brush, a smaller spring pressure is required.…”

Section: Introductionmentioning

confidence: 99%

Anti-greasy and conductive superamphiphobic coating applied to the carbon brushes/conductive rings of hydro-generators

Qin

Guo

2021

RSC Adv.

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“…Wear can mainly be classified into mechanical wear and electrical wear [1][2][3]. Many researchers have shown that, for example, the contact normal load, current, and sliding speed have significant effects on the friction and wear between the carbon strip and contact line (the current has the greatest effect on the carbon strip) [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

High-Frequency Vibration Analysis and Optimization of Irregular Wear of Pantograph Carbon Strips

Huang

Wang

et al. 2020

Shock and Vibration

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The irregular wear of carbon current collector pantograph strips increases the railway maintenance costs and introduces safety hazards in the railway operation. This paper presents a method for analyzing the irregular wear of carbon strips with numerical dynamic analyses and modal tests. The carbon strips were studied in laboratory tests, and an equivalent numerical model for the investigation of their irregular wear and performance improvement was established. The results from the computational simulations were evaluated based on the laboratory results, and the correlation between the high-frequency vibration and irregular wear of the carbon strips was studied. The irregular wear contour of the carbon strips coincides with the high-frequency mode shape according to the experimental and numerical results. Moreover, the dynamic design for carbon strips was optimized with the validated computational model. The results suggest that the optimized schemes effectively mitigate the irregular wear of carbon strips.

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Tribological and electric-arc behaviors of carbon/copper pair during sliding friction process with electric current applied

Cited by 38 publications

References 11 publications

Performance Characteristics of Lubricants in Electric and Hybrid Vehicles: A Review of Current and Future Needs

Performance Characteristics of Lubricants in Electric and Hybrid Vehicles: A Review of Current and Future Needs

Anti-greasy and conductive superamphiphobic coating applied to the carbon brushes/conductive rings of hydro-generators

High-Frequency Vibration Analysis and Optimization of Irregular Wear of Pantograph Carbon Strips

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