A Comparative Study of the Methods for Calculation of Journal Bearing Elastohydrodynamic Lubrication

Abstract:

Based on the fast fourier transform（FFT） and flexibility matrix method, the study is presented for journal bearing elastohydrodynamic lubrication. The effects of FFT and flexibility matrix method on the distribution of oil film pressure and elastic deformation in the steady load are investigated. The results are shown that the difficulty of the EHL for journal bearings in the case of high eccentricity ratios or heave loads can be effectively solved by the FFT method. When the eccentricity ratio is smaller, the magnitude and distribution of the oil film pressure are basic agreement by FFT method and flexibility matrix method. When the eccentricity ratio enhances, the maximum oil film pressure obtained by FFT method is bigger on both ends of the journal bearing and on its intermediate is smaller.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 2727-2730
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.2727
• Online since: November 2012
• Authors: Jun Yan Zhang, Shu Kui Han, Su Fen Zhang, You Wei Zhang
• Keywords: Contact Lubrication, Elastic Deformation, Fast Fourier Transform (FFT)

References

[1] Carl, T. E, Institution of Mechanical Engineers, 1964, Paper 19, p.100

[2] Cen Shao-pi, Chen Han and Tang Zhao-min, Journal of Xi' an Jiaoton University, 1982,, Vol.16,No.2,pp.119-126 (in Chinese)

[3] Fatu A, Hajjam M, Bonneau D. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2005,219(3): 209-224. [J]. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2005, 219(3): 209-224.

DOI: 10.1243/135065005x33892

[4] Piffeteau S, Souchet D, Bonneau D. Journal of Tribology, 2000, 122(1):181-191

[5] Kim, B J, Kim K W. Journal of Tribology, 2001, 123(3):444-454.

[6] K WANG, W Z ZHANG, L P GUO, et al. Transactions of Csice，2006. 24(2):173-178 (in Chinese)

[7] K WANG, W Z ZHANG, L P GUO, et al. Journal of Mechanical Engineering, 2006. 42(7):14-18. (in Chinese)

[8] Hu Y Z, Zhu D. Journal of Tribology, 2000. 122(1):1-9.