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      Analysis of the coated and textured ring/liner conjunction based on a thermal mixed lubrication model

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          For the ring/liner conjunction, well-designed surface texturing has been regarded as a potential means to improve its tribological performance, as well as the application of coating. However, so far most researchers focused on the one of these aspects. In this study, the combined effect of coating and texturing on the performance of ring/liner conjunction is numerically investigated. A thermal mixed lubrication model is presented. The effects of the coating’s thermal and mechanical properties on the tribological performance are studied under the cold and warm engine operating conditions. Along with the increasing coating thickness, the effects of the coating’s thermal properties on friction loss are found to be significant, as well as the effects of the coating’s mechanical properties. It is also found that a soft coating with a lower thermal inertia has a greater ability to reduce the friction loss of the textured conjunction.

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          Most cited references 30

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          An Average Flow Model for Determining Effects of Three-Dimensional Roughness on Partial Hydrodynamic Lubrication

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            Application of Average Flow Model to Lubrication Between Rough Sliding Surfaces

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              Recent development on surface texturing in enhancing tribological performance of bearing sliders


                Author and article information

                Tsinghua Science and Technology
                Tsinghua University Press (Xueyuan Building, Tsinghua University, Beijing 100084, China )
                05 December 2018
                : 06
                : 04
                : 420-431 (pp. )
                [ 1 ] State Key Laboratory of Mechanical System and Vibration, Shanghai Jiaotong University, Shanghai 200240, China
                [ 2 ] School of Mechanical Electronic Technology, Shanghai Jianqiao University, Shanghai 201306, China
                [ 3 ] School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200240, China
                Author notes
                * Corresponding author: Xianghui MENG, E-mail: xhmeng@

                Chunxing GU. He received his bachelor and master degrees in mechanical engineering in 2011 and 2014 from Jiangsu University, Zhenjiang, China. He is studying for his Ph.D. degree at the Mechanical Engineering School of Shanghai Jiaotong University, Shanghai, China. His research interests include surface texturing and tribology.

                Xianghui MENG. He received his bachelor and master degrees in power machinery and Engineering from Xi’an Jiaotong University, China, in 1995 and 1999, respectively. He received his PhD degree in mechanical engineering from Shanghai Jiaotong University, China, in 2006. His current position is an associate professor and doctorial supervisor at School of Mechanical Enginnering, Shanghai Jiaotong University. His research areas cover the tribology of internal combustion engines, low friction design, and wear mechanism.


                This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit

                Page count
                Figures: 11, Tables: 4, References: 34, Pages: 12
                Research Article


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