Abstract
The lubrication performance of a bearing is determined by low friction and high load carrying capacity, which can be theoretically facilitated by partial-slip or heterogeneous-slip surface design. In the study, we numerically analysed a two-dimensional lubricated contact of a stationary slip slider surface and a moving non-slip plane by using the critical shear stress model. The proliferation of slip region on a slider surface with the relaxation in the critical shear stress criterion for boundary slip was examined. Insights were extracted from the results, and two partial-slip patterns, namely, lateral central stripe and inverse triangle, were proposed. These two new partial-slip patterns were validated numerically and experimentally through slider bearing tests, which demonstrate that the bearing load carrying capacity was enhanced beyond the predictions of the classical Reynolds equation.
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The authors declare that all data supporting the findings of this study are available within the article.
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Acknowledgement
This paper was supported by the National Natural Science Foundation of China (Project No. 51805310) and the National Key R&D Programme of China (Project No. 2018YFB2000300).
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BWS and LC carried out the experiment. BWS wrote the manuscript with support from LG and PLW. WW and LG conceived the original idea and supervised the project.
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Sun, B.W., Chen, L., Guo, L. et al. Experimental Evidence on the Enhancement of Bearing Load Capacity by Localised Boundary Slip Effect. Tribol Lett 69, 58 (2021). https://doi.org/10.1007/s11249-021-01434-w
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DOI: https://doi.org/10.1007/s11249-021-01434-w