Improvement of static characteristics of an aerostatic journal bearing using the elastic deformation of an O-ring |
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| Authors: | S Yoshimoto |
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| Affiliation: | 1. Key Laboratory of Marine Power Engineering & Technology (Ministry of Transport), Wuhan University of Technology, Wuhan 430063, China;2. Reliability Engineering Institute, National Engineering Research Center for Water Transportation Safety, Wuhan 430063, China;1. School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang, 471003, China;2. Department of Mechatronics Engineering, Henan Institute of Technology, Xinxiang, 453003, China;3. National United Engineering Laboratory for Advanced Bearing Tribology, Henan University of Science and Technology, Luoyang, 471023, China;4. Collaborative Innovation Center of Major Machine Manufacturing in Liaoning, Dalian, Liaoning, 116024, China;5. Zhejiang Zhaofeng Mechanical and Electronic Co., Ltd, Hangzhou, 311232, China;1. Departamento de Ingeniería, Universidad de Monterrey, San Pedro Garza García, 66238, Mexico;2. Facultad de Ciencias Físico-Matemáticas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, 66450, Mexico;1. Department of Mechanical Engineering, National Institute of Technology, Patna 800005, India |
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| Abstract: | A new type of aerostatic journal bearing in which the elastic deformation of an O-ring is used to improve its static characteristics is proposed. The static characteristics of this bearing are determined theoretically by both the finite difference method and the small perturbation method. Effects of parameters on the static characteristics are shown, and the optimum design method for the static characteristics is discussed. Further, theoretical results are compared with experimental results to confirm the validity of theoretical predictions. It is consequently found that the new type of bearing possesses higher static stiffness and greater load capacity than conventional point source bearings with inherently compensated feeding holes. |
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| Keywords: | aerostatic journal bearings O-rings bearing design |
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