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Journal of KONES

Tytuł artykułu

Adhesion and capilarity in micro-bearing lubrication

Autorzy Wierzcholski, K.  Miszczak, A. 
Treść / Zawartość
Warianty tytułu
Języki publikacji EN
EN Present paper shows the some main phenomena which have important influence on the micro-bearing operating parameters. To above mentioned phenomena belong: adhesion forces, adsorption forces, capillary forces, elastic and hyperelastic deformations of cooperating micro-bearing surfaces, Van-der Waals electrostatic forces on the micro-bearing surfaces. Because the height of super thin micro-bearing gap is very small often smaller than l micrometer, hence the adhesion forces and capillary forces arising in micro-bearing gap, provoke the oil dynamic viscosity changes. This fact leads to the hydrodynamic pressure and bearing carrying capacity changes. The performed research play off the main role of mechanical micro-deformations of cooperating micro-bearing surfaces on non-Newtonian oil dynamic viscosity and here are indicated the influence of capillary force on adhesion forces in micro-scale. The micro-deformations of the micro-bearing gap height are effecting the changes of oil flow velocity in the gap, this fact leads to the share rate changes and therefore we obtain changes of apparent viscosity of the non-Newtonian oil.
Słowa kluczowe
EN adsorption   adhesion   capillary forces   micro-bearing lubrication  
Wydawca Institute of Aviation
Czasopismo Journal of KONES
Rocznik 2009
Tom Vol. 16, No. 3
Strony 489--495
Opis fizyczny Bibliogr. 9 poz., rys.
autor Wierzcholski, K.
autor Miszczak, A.
  • Technical University of Koszalin Institute of Mechatronics, Nanotechnology and Vacuum Technique Racławicka Street 15-17, 75-620 Koszalin, Poland tel: +48 505729119, fax: +48 94 3478489,
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