Your browser does not support JavaScript!

access icon openaccess Analysis on anti-wear mechanism of bionic non-smooth surface based on discrete phase model

In order to study the lubrication and anti-wear mechanism of the pit-type bionic non-smooth surface used in the low-speed and high-torque seawater hydraulic motor valve plate pair, the discrete phase models of the four pits are simulated under different working conditions. In this study, the trajectories of different diameters particles in the hemispherical pits are analysed, which can reflect the movement of different sizes and masses wear debris in the pits. The discrete phase concentration distributions of the four-kind pits, hemispherical pits, cylindrical pits, four-prism pits and tri-prism pits, are simulation under the same working conditions, which reflects the effect of pit geometry on the movement of wear debris. The discrete phase concentration distributions of four pits moving at different rotation speeds and different rotation radii are calculated, which indicates that the rotation speed of the motor and the distribution of pits on the valve plate will affect the ability of the pit to store wear debris.


    1. 1)
      • 11. Wang, X.L., Kato, K., Adachi, K., et al: ‘The effect of laser texturing of SiC surface on the critical load for the transition of water lubrication mode from hydrodynamic to mixed’, Tribol. Int., 2001, 34, pp. 703711.
    2. 2)
      • 12. Hua, X.J., Sun, J.G., Zhang, P.Y., et al: ‘Research on discriminating partition laser surface micro-texturing technology of engine cylinder’, Tribol. Int., 2016, 98, pp. 190196.
    3. 3)
      • 1. Nie, S.L., Yin, F.L.: ‘Research progress and prospect of water hydraulic piston pump’, Chinese Hydraul. Pneum., 2015, (1), pp. 17.
    4. 4)
      • 8. Etsion, I.: ‘State of the art in laser surface texturing’, J. Tribol., 2005, 127, pp. 248253.
    5. 5)
      • 4. Hamilton, D.B., Walowit, J.A., Allen, C.M.: ‘A theory of lubrication by micro irregularities’, J. Basic Eng., 1966, 88, pp. 177185.
    6. 6)
      • 13. Dou, Z.L., Wang, J.D., Chen, D.R.: ‘Bionic research on fish scales for drag reduction’, J. Bionic Eng., 2012, 9, (4), pp. 457464.
    7. 7)
      • 2. Li, Z.Y., He, X.F., Yu, Z.Y., et al: ‘Development, opportunity and prospect of water hydraulic technology’, Fluid Power Trans. and Control, 2003, (1), pp. 1319.
    8. 8)
      • 5. Keishi, Y., Yasuhiro, T., Yuki, T., et al: ‘Friction characteristics of textured surface created by electrical discharge machining under lubrication’, Procedia CIRP, 2016, 42, pp. 662667.
    9. 9)
      • 15. NAS1638: ‘Oil cleanliness classification standard’, 1984.
    10. 10)
      • 9. Sorin, C.V., Medina, S., Andrew, V.O., et al: ‘Lubricant film thickness and friction force measurements in a laser surface textured reciprocating line contact simulating the piston ring-liner pairing’, Tribol. Int., 2016, 98, pp. 317329.
    11. 11)
      • 10. Ge, L.: ‘Study on adhesion properties of bionic nonstick cooker’. Master thesis, Jilin University, Changchun, 2005, pp. 812.
    12. 12)
      • 7. Azzedine, D., Martin, J.C.: ‘Operational performance of textured journal bearings lubricated with acontaminated fluid’, Tribol. Int., 2016, 93, pp. 377389.
    13. 13)
      • 6. Ulrika, P., Staffan, J.: ‘Textured surfaces for improved lubrication at high pressure and low sliding speed of roller/piston in hydraulic motors’, Tribol. Int., 2007, 40, pp. 355359.
    14. 14)
      • 3. Sun, J.R., Dai, Z.D.: ‘Bionics of non-smooth surfaces (I)’, Adv. Nat. Sci., 2008, 18, (3), pp. 241246.
    15. 15)
      • 14. Wu, L.M., Wang, Y., Xu, E.L., et al: ‘Employing groove-textured surface to improve operational performance of rotary energy recovery device in membrane desalination system’, Desalination, 2015, 369, pp. 9196.

Related content

This is a required field
Please enter a valid email address