Numerical analysis of plain journal bearing under hydrodynamic lubrication by water |
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| Affiliation: | 1. College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang Province, China;2. Washington University, St. Louis, MO, USA;1. The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, People׳s Republic of China;2. College of Mechanical Engineering, Chongqing University, Chongqing 400044, People׳s Republic of China;3. Science and Technology on Vehicle Transmission Laboratory, China North Vehicle Research Institute, Beijing 100072, People׳s Republic of China;1. School of Food Equipment Engineering and Science, Xi''an Jiaotong University, Xi''an, 710049, China;2. State Key Laboratory for Manufacturing Systems Engineering, Xi''an Jiaotong University, Xi''an, 710049, China;3. Department of Mechanical and Industrial Engineering, Louisiana State University, 3283 Patrick Taylor Hall, Baton Rouge, LA 70808, USA;1. Department of Materials Science, Tampere University of Technology, P.O. Box 589, FIN-33101 Tampere, Finland;2. Division of Machine Elements, Luleå University of Technology, SE-97187 Luleå, Sweden;3. Research & Development, Metso Minerals Oy, P.O.Box 306, FIN-33101 Tampere, Finland;4. Materials & Tribology, Component Expertise, Engines R&D, Wärtsilä Finland Oy, P.O.Box 244, FIN-65101 Vaasa, Finland |
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| Abstract: | The article aims to provide references for designing water-lubricated plain journal bearings. Considering the differences between the physical properties of the water and of the oil, the effects of eccentricity ratio on pressure distribution of water film are analyzed by computational fluid dynamics (CFD). Then numerical analysis of journal bearings with different dimensions is undertaken under different rotational speeds. Based on the analysis, a reference is produced for selecting the initial diameter dimension which is used to design an efficient water-lubricated plain bearing under the given load and rotational speed. At last, the reference is verified by an experimental case. |
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| Keywords: | Plain journal bearings Water-lubrication Cavitation CFD |
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