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Jiang, Sen; Liu, Qi; Wang, Jiawei; Ji, Hua; Dong, Guangneng
Tribology international, February 2023, 2023-02-00, Volume: 180Journal Article
In this study, two asymmetric texturing forms are proposed and a numerical optimization with a genetic algorithm is conducted for the asymmetric surface texturing to improve lubricant load support under reciprocating sliding conditions. Considering the two stroke performances in a reciprocating motion, four evaluation criteria are used to control and enhance the directional or overall performance of the surfaces with the optimized textures. The effects of operating conditions on the optimal texturing are also highlighted. The results show that the well-designed asymmetric texturing has the potential to improve the overall performance or achieve directional frictional control, and the optimal texturing is not necessarily symmetric or asymmetric and should be designed based on its operating condition and practical demand. •Two asymmetric texturings are introduced on the reciprocating surfaces to achieve directional/overall performance control.•A numerical method with a genetic algorithm is proposed to optimize the asymmetric surface texturing.•Evaluation criteria are used to control and enhance the directional or overall performance of the optimized textures.•The effects of operating conditions on the optimal texturing are highlighted.
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