Published October 2, 2014 | Version 9999660
Journal article Open

Study of TiO2 Nanoparticles as Lubricant Additive in Two-Axial Groove Journal Bearing

Description

Load carrying capacity of an oil lubricated two-axial
groove journal bearing is simulated by taking into account the
viscosity variations in lubricant due to the addition of TiO2
nanoparticles as lubricant additive. Shear viscosities of TiO2
nanoparticle dispersions in oil are measured for various nanoparticle
additive concentrations. The viscosity model derived from the
experimental viscosities is employed in a modified Reynolds
equation to obtain the pressure profiles and load carrying capacity of
two-axial groove journal bearing. Results reveal an increase in load
carrying capacity of bearings operating on nanoparticle dispersions as
compared to plain oil.

Files

9999660.pdf

Files (555.5 kB)

Name Size Download all
md5:5c2bf269e181a5733ff5166e14e67ada
555.5 kB Preview Download

Additional details

References

  • B. S. Shenoy and R. Pai, "Stability characteristics of an externally adjustable fluid film bearing in the laminar and turbulent regimes," Trib. Int., vol. 43, pp. 1751-1759, 2010.
  • D. S. Rao, B. S. Shenoy, R. S. Pai, and R. Pai, "Stability of tri-taper journal bearings under dynamic load using a non-linear transient method," Trib. Int., vol. 43, pp. 1584-1591, 2010.
  • B. S. Shenoy and R. Pai, "Effect of turbulence on the static performance of a misaligned externally adjustable fluid film bearing lubricated with couple stress fluids," Trib. Int., vol. 44, no. 12, pp. 1774-1781, Jan. 2011.
  • B. Li, X. Wang, W. Liu, and Q. Xue, "Tribochemistry and antiwear mechanism of organic-inorganic nanoparticles as lubricant additives," Tribol. Lett., vol. 22, no. 1, pp. 79-84, 2006.
  • D. X. Peng, Y. Kang, R. M. Hwang, S. S. Shyr, and Y. P. Chang, "Tribological properties of diamond and SiO2 nanoparticles added in paraffin," Trib. Int., vol. 42, pp. 911-917, 2009.
  • M. Mosleh, N. D. Atnafu, J. H. Belk, and O. M. Nobles, "Modification of sheet metal forming fluids with dispersed nanoparticles for improved lubrication," Wear, vol. 267, pp. 1220-1225, 2009.
  • W. Li, S. Zheng, B. Cao, and S. Ma. "Friction and wear properties of ZrO2/SiO2 composite nanoparticles," J. Nanopart. Res., vol. 13, no. 5, pp. 2129-2137, 2011.
  • A. H. Battez, R. Gonzalez, D. Felgueroso, J. E. Fernandez, M. R. Fernandez, M. A. Garcia, et al., "Wear prevention behaviour of nanoparticle suspension under extreme pressure conditions," Wear, vol. 263, pp. 1568-1574, 2007.
  • L. Joly-Pottuz, B. Vacher, T. L. Mogne, J. M. Martin, T. Mieno, C. N. He, et al., "The role of Nickel in Ni-containing nanotubes and onions as lubricant additives," Tribol. Lett., vol. 29, no. 3, pp. 213-219, 2008. [10] E. F. Rico, I. Minondo, and D. G. Cuervo, "The effectiveness of PTFE nanoparticle powder as an EP additive to mineral base oils," Wear, vol. 262, pp. 1399-1406, 2007. [11] Y. Peng, Y. Hu, and H. Wang, "Tribological behaviors of surfactantfunctionalized carbon nanotubes as lubricant additive in water," Tribol. Lett., vol. 25, no. 3, pp. 247-253, 2007. [12] K. P. Nair, M. S. Ahmed, and S. T. Al-qahtani, "Static and dynamic analysis of hydrodynamic journal bearing operating under nano lubricants," Int. J. Nanoparticles, vol. 2, pp. 251-262, 2009. [13] B. S. Shenoy, K. G. Binu, R. Pai, D. S. Rao, and R. S. Pai, "Effect of nanoparticles additives on the performance of an externally adjustable fluid film bearing," Trib. Int., vol. 45, no. 1, pp. 38-42, 2012. [14] Y. Y. Wu, W.C. Tsui, and T. C. Liu, "Experimental analysis of tribological properties of lubricating oils with nanoparticle additives," Wear, vol. 262, pp. 819-825, 2007. [15] A. Einstein, Investigations on the theory of the Brownian movement. New York: Dover Publications Inc., 1956. [16] H. C. Brinkman, "The viscosity of concentrated suspensions and solution," J. Chem. Phys., vol. 20, pp. 571-581, 1952. [17] G. K. Batchelor, "The effect of Brownian motion on the bulk stress in a suspension of spherical particles," J. Fluid Mech., vol. 83, pp. 97-117, 1977. [18] M. Kole and T. K. Dey, "Effect of aggregation on the viscosity of copper oxide – gear oil nanofluids," Int. J. Therm. Sci., vol. 50, no. 9, pp. 1741-1747, 2011. [19] C.C. Li, S. J. Chang, and M. Y. Tai, "Surface chemistry and dispersion property of TiO2 nanoparticles," J. Am. Ceram. Soc., vol. 93, no. 12, pp. 4008-4010, 2010. [20] G. Stachowiak and A. Batchelor, Engineering Tribology. Butterworth- Heinemann, 2013, ch. 5. [21] O. Pinkus O and B. Sternlicht, Theory of Hydrodynamic Lubrication. New York: McGraw-Hill Book Company, Inc., 1961.