Nano-scale current-carrying friction and wear performance of conductive slip rings: a molecular dynamics study
Year: 2025
Type: article
Abstract: This study employs molecular dynamics (MD) simulations to investigate the nano-scale current-carrying friction and wear behavior of copper/graphite conductive slip rings under varying electric field strengths, normal loads, and sliding velocities. A three-layer MD model comprising graphite, an air gap, and a copper substrate was constructed using Materials Studio and simulated via LAMMPS. Results show that increased electric field strength, load, and sliding speed exacerbate friction force and energy dissipation, while lower parameter values promote the formation of stable tribochemical films and enhance anti-wear performance. These findings provide theoretical guidance for optimizing conductive slip ring design in high-reliability industrial applications.
Source: Vibroengineering PROCEDIA
Authors: Junye Li, Chao Han, Jianhe Liu, Weihong Zhao, Nianhuan Li, Guodong Ni, Ying Xu, Shukun Wang
Institution: Changchun University of Science and Technology
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4414869617