Research on problems concerning solutions for the performance of a hybrid gas journal bearing based on the finite difference method

被引：0
|
作者：
Wang X. [1 ]
Bai H. [1 ]
Zhuang M. [1 ]
机构：
[1] Institute of Plasma Physics, Chinese Acad. of Sci.
来源：
Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2011年 / 32卷 / 10期
关键词：
Attitude angle; Convergence precision; Finite difference method; Nosed angle; Reynolds equation;
D O I：
10.3969/j.issn.1006-7043.2011.10.021
中图分类号：
学科分类号：
摘要：
In order to research the performance of a hybrid gas journal bearing, a calculation program based on the finite difference method was developed. This method can be used to calculate the bearing performance for various types of bearings, such as a hydrostatic gas bearing, hydrodynamic gas bearing, and hybrid gas bearing. The influence of the nosed angle, grid number, convergence precision and attitude angle on calculation results was discussed respectively. It was proven that the nosed angle has no effect on the results of the static performance of the journal bearing. The grid number should match the convergence precision; otherwise the calculation results will be influenced significantly. A nested loop of attitude angle was added to this program in order to calculate the dynamic effect; this loop took into account the influence of gas film thickness expression in the calculation results of the bearing's performance. The calculation results were compared with a case which was validated by an experiment. It showed that the relative errors were below 5%, which proved that the calculation results of this program were highly reliable and accurate. Furthermore, this program has been successfully applied to actual engineering design.
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页码：1381 / 1385+1390
相关论文
共 11 条
  • [1] Wu H., Kong X., The application of GMRES algorithm in calculation Reynolds equation, Lubrication Engineering, 1, pp. 2-4, (2000)
  • [2] Peng W., Pu R., A static performance analysis and experimental study of aerostatic journal bearing, Lubrication Engineering, 12, pp. 204-206, (2006)
  • [3] Lo C., Wang C., Lee Y., Performance analysis of high-speed spindle aerostatic bearings, Tribology International, 38, pp. 5-14, (2005)
  • [4] Zhang M., Zhu Y., Duan G., A new method based FEMLAB to predict static performance of air bearing, Lubrication Engineering, 2, pp. 63-65, (2006)
  • [5] pp. 12-20, (1988)
  • [6] Powell J.W., Design of Aerostatic Bearings, pp. 43-47, (1970)
  • [7] pp. 19-30, (1999)
  • [8] pp. 40-60, (1990)
  • [9] pp. 70-85, (2009)
  • [10] pp. 60-74, (2008)
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