The numerical analysis of the radial sleeve bearing with combined surface slip |
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| Affiliation: | 1. School of Mechanical Engineering, Shandong University, Jinan 250061, China;2. School of Mechanical Electronic Engineering, Weifang University, Weifang 261061, China;1. Equipment Reliability Institute, Shenyang University of Chemical Technology, Shenyang 110142, China;2. College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China;3. College of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, China;1. Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, TX 77843, USA;2. Department of Entomology, Texas A&M University, College Station, TX 77843, USA;3. Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA;1. Key Laboratory of Bionic Engineering (Ministry of Education, China), Jilin University, Changchun 130022, PR China;2. College of Construction Engineering, Jilin University, Changchun 130026, PR China;1. State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin, China;2. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, China |
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| Abstract: | In order to improve the carrying capacity and reduce the temperature rise in high speed and precise spindle systems, a combined surface radial sleeve bearing using the interfacial slip technique was discussed. An extended Reynolds equation was derived based on the modified slip length model considering the limiting shear stress. By means of the finite differential methods, the characteristic analysis and optimization of the slip region of the combined surface sleeve bearing were carried out, and it has been proved that there is still a considerable large load support in a parallel sliding gap. Comparing with the general journal bearing, the load capacity and end leakage rate of the combined surface sleeve bearing can be increased greatly and the load capacity can be increased by 1.75 times. The attitude angle, friction drag, temperature rise of the combined bearing can be decreased distinctly and the temperature rise can be decreased by 92.4%. |
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