Numerical Simulation of Oil Film State and Mechanical Performance of Heavy Hydrostatic Thrust Bearings

Abstract:

The finite element method (FEM) is applied in the numerical simulation of heavy hydrostatic thrust bearings to study the influence of pressure and temperature on bearing deformation. The pressure distribution and the temperature distribution are obtained by solving the Reynolds equation and the energy equation. The bearing deformations caused by temperature and pressure are computed by imposing the two obtained distributions on the bearing. Because the pressure distribution and the temperature distribution are influenced by the oil film thickness and the oil film thickness is influenced by the bearing deformation, the numerical simulation is a process of iteration. The numerical results demonstrate that, in heavy hydrostatic thrust bearings, the thermal deformation and the mechanical deformation are both significant and can not be neglected. The influence of operation parameters on the anti-capsizing capability of heavy hydrostatic thrust bearings is also discussed. The obtained results reveal that, the anti-capsizing moment of the bearing increases with the decrease of the central thickness of the oil film.

• Periodical: Applied Mechanics and Materials (Volume 318)
• Pages: 148-152
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.318.148
• Online since: May 2013
• Authors: Yao Yao Hong, Li Jun Du, She Miao Qi
• Keywords: Deformation, Hydrostatic Thrust Bearing, Numerical Simulation, Pressure, Temperature

References

[1] A. G. Khlebov and I. L. Khlebova, "Calculation of the Stressed State of a Rough Solid Surface," Russian Physics Journal, vol. 48, Feb. 2005, pp.76-81.

DOI: 10.1007/s11182-005-0162-6

[2] M.Zhuravkov S.Bosiakov，S.Pronckevich, "The Computer Analysis of the Temperature Fields Arising in Bearing Node at Rotation of a Rotor," European Conference on Computational Mechanics, vol. 6, May. 2006, pp.5-8.

DOI: 10.1007/1-4020-5370-3_149

[3] K. Fu, Y. Zhu and M. Zhang, "Research on the Condition of Nonisothermal-based Lubrication Problem of the Externally Pressurized Gas Bearings" Lubrication Engineering, vol.32, Jan.2007, pp.117-119.

[4] Junpeng Shao, Xiaodong Yang and Limin Zhou, "Numerical Simulation of Integrated Deformation of Heavy Hydrostatic Thrust Bearing and Experimental Research" 2009 International Conference on Intelligent Human-Machine Systems and Cybernetics, pp.45-48.

DOI: 10.1109/ihmsc.2009.137

[5] Ruichang, Wang, "The Caculation of the Pressure Field of Dynamic Thrust Bearing in the Thermo-current State" Journal of Anshan Institute of I. & S. Technology, vol.23, No.2,Apr.2000,pp.100-102.