Characterization of the friction-induced attractor trajectories during the running-in process in ball-on-disk tribosystem
Industrial Lubrication and Tribology
ISSN: 0036-8792
Article publication date: 10 April 2024
Issue publication date: 15 April 2024
Abstract
Purpose
The purpose of this study is to solve the issues of time-consuming and complicated computation of traditional measures, as well as the underutilization of two-dimensional (2D) phase-trajectory projection matrix, so a new set of features were proposed based on the projection of attractors trajectory to characterize the friction-induced attractors and to reveal the tribological behavior during the running-in process.
Design/methodology/approach
The frictional running-in experiments were conducted by sliding a ball against a static disk, and the friction coefficient was collected to reconstruct the friction-induced attractors. The projection of the attractors in 2D subspace was then mapped and the distribution of phase points was adapted to conduct the feature extraction.
Findings
The evolution of the proposed moment measures could be described as “initial rapid decrease/increase- midterm gradual decrease/increase- finally stable,” which could effectively reveal the convergence degree of the friction-induced attractors. Moreover, the measures could also describe the relative position of the attractors in phase–space domain, which reveal the amplitude evolution of signals to some extent.
Originality/value
The proposed measures could reveal the evolution of tribological behaviors during the running-in process and meet the more precise real-time running-in status identification.
Keywords
Acknowledgements
The data that support the findings of this study are available on request from the corresponding author. The data are available if needed.
This project was funded by the National Natural Science Foundation of China (Grant No. 52305221), the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (Grant No. 23KJB430043) and the Innovative Science and Technology Platform Project of Cooperation between Yang-zhou City and Yangzhou University, China (Grant No. YZ2020266).
Conflict of interest statement: The authors declare that they have no financial and personal relationships with other people or organizations that can inappropriately influence the work. There is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled.
Citation
Wang, Y., Sun, G., Wang, H. and Jian, B. (2024), "Characterization of the friction-induced attractor trajectories during the running-in process in ball-on-disk tribosystem", Industrial Lubrication and Tribology, Vol. 76 No. 3, pp. 431-440. https://doi.org/10.1108/ILT-09-2023-0304
Publisher
:Emerald Publishing Limited
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