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Simulation and experimental analysis of supporting characteristics of multiple oil pad hydrostatic bearing disk

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Abstract

To study the heavy hydrostatic bearing with multiple oil pads, a reasonably simplified model of the pad is put forward, and the mathematical model of the bearing characteristics of the multiple oil pad hydrostatic bearing is built with consideration of variable viscosity. The pressure field in the clearance oil film of the hydrostatic bearing at various velocities is simulated based on the Finite Volume Method (FVM) by using the software of Computational Fluid Dynamics (CFD). Some pressure experiments on the hydrostatic bearing were carried out and the results verified the rationality of the simplified model of the pad and the validity of the numerical simulation. It is concluded that the viscosity has a great influence on the pressure in the heavy hydrostatic bearing and cannot be neglected, especially, in cases of high rotating speed. The results of numerical calculations provide the internal flow states inside the bearing, which would help the design of the oil cavity structure of the bearing in engineering practice.

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Authors and Affiliations

  1. College of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin, 150080, China

    Yan-qin Zhang  (张艳芹), Li-guo Fan  (范立国), Rui Li  (李锐), Chun-xi Dai  (戴春喜) & Xiao-dong Yu  (于晓东)

Authors
  1. Yan-qin Zhang  (张艳芹)
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  2. Li-guo Fan  (范立国)
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  3. Rui Li  (李锐)
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  4. Chun-xi Dai  (戴春喜)
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  5. Xiao-dong Yu  (于晓东)
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Corresponding author

Correspondence to Yan-qin Zhang  (张艳芹).

Additional information

Project supported by the National Natural Science Funds for Young Scholar of China (Grant No. 51005063), the Heilongjiang Postdoctoral Science-Research Foundation (Grant LBH-Q12062) and the National Natural Science Foundation of China (Grant No. 51075106).

Biography: ZHANG Yan-qin (1981-), Female, Ph. D., Associate Professor

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Zhang, Yq., Fan, Lg., Li, R. et al. Simulation and experimental analysis of supporting characteristics of multiple oil pad hydrostatic bearing disk. J Hydrodyn 25, 236–241 (2013). https://doi.org/10.1016/S1001-6058(13)60358-3

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  • DOI: https://doi.org/10.1016/S1001-6058(13)60358-3

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