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Inertia effects in a curvilinear thrust hydrostatic bearing with a porous pad

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The flow of a Newtonian lubricant in a clearance of a curvilinear thrust hydrostatic bearing with one porous wall is considered. The bearing is modelled by two curvilinear smooth surfaces and the porous wall is adhered to the curve non-porous surface. The flow in the bearing clearance is considered with inertia forces and the Navier-Stokes and Poisson equations are uncoupled by using the Morgan-Cameron approximation. The equations of motion are solved by an averaged inertia method. Step and spherical bearings are discussed as examples. It shown that the inertia effects influence the bearing performance considerably.
Rocznik
Strony
1227--1238
Opis fizyczny
Bibliogr. 27 poz., wykr.
Twórcy
autor
autor
autor
  • University of Zielona Góra, Faculty of Mechanical Engineering ul. Szafrana 2, P.O.Box 47, 65-516 Zielona Góra, POLAND, A.Walicka@ijame.uz.zgora.pl
Bibliografia
  • Agrawal V.K. (1970): Effect of lubricant inertia on squeeze film in spherical bearing. - Jap. J. Appl. Phys., vol.9, No.7, pp.831-833.
  • Gould F. (1975): High-pressure spherical squeeze films. - J. Lubric. Technol. Trans. ASME, ser. F, vol.97, No.1, pp.207-208.
  • Gururajan K. and Prakash J. (1999): Surface roughness effects in infinitely long porous journal bearing. - Journal of Tribology, Trans. ASME, vol.121, No.1, pp.139-147.
  • Jurczak P. (2004): Influence of the lubricant kind on mechanical parameters of thrust bearings with porous pads (in Polish). - PhD Thesis, University of Zielona Gora, pp.1-140.
  • Möller U.J. and Boor U. (1996): Lubricants in Operations. - Dűseldorf, VDI Verlag.
  • Morgan V.T. and Cameron A. (1957): Mechanismus of lubrication in porous metal bearings. - Proc. Conf. on Lubrication and Wear, Inst. Mech. Eng., London 1957, pp.151-157.
  • Murti P.R.K. (1975): Squeeze film in curved circular plates. - J. Lubric. Technol. Trans. AME, ser F, vol.97, No.4, pp.650-654.
  • Myshkin N.K., Kim C.K. and Petrokovets M.I. (1997): Introduction to Tribology. - Seoul, Cheong Moon Gak.
  • Myshkin N.K. and Petrokovets M.I. (2002): Tribology. Principles and Applications (in Russian). - Gomel, IMMS NANB.
  • Prakash J. and Tiwari K. (1984): An analysis of the squeeze film between rough porous rectangular plates with arbitrary porous wall thickness. - Journal of Tribology, Trans. ASME, vol.106, No.2, pp.218-222.
  • Prakash J. and Tiwari K. (1985): Effects of surface roughness on the squeeze film between rectangular porous annular disc with arbitrary porous wall thickness. - Int. J. Mech. Sci., vol.27, No.3, pp.135-144.
  • Szeri A.Z. (1998): Fluid Film Lubrication. Theory and Design. - Cambridge University Press.
  • Vora K.H. (1980): Behaviour of squeeze film between curved circular plates with a concentric circular pocket. - Wear, vol.65, pp.35-38.
  • Walicka A. (1989): Accurate and Asymptotic Solutions of Simplified Sets of Equations Describing the Motion of Viscous Fluids in a slot Bounded by Two Coaxial Surfaces of Revolution (in Polish). - Warszawa WNT.
  • Walicka A. (1993): Averaged inertia method for the flow of viscous fluid in a slot between fixed surfaces of revolution. - Sci.Rep. TU of Zielona Gora, No.18, pp.153-163.
  • Walicka A. (2002a): Rheodynamics of Non-Newtonian Fluids Flow in Straight and Curved Channels (in Polish), ( Zielona Gora: University Press.
  • Walicka A. (2002b): Rotational flows of rheological complex media in narrow annular channels (in Russian). - Zielona Góra: University Press.
  • Walicka A., Makhaniok A.A. and Gubarev C.A. (2001): Influence of inertia and wall porosity on the process of an impulse transport in a biobearing with lubricant injection (in Russian). - J. Enging Phys. & Thermophys., vol.74, No.3, 2001, pp.216-219.
  • Walicka A. and Walicki E. (2002a): Surface roughness effect on the pressure distribution in curvilinear thrust bearings. - Exploitation Problems of Machines, No.3 (131), pp.157-167.
  • Walicka A. and Walicki E. (2002b): Couple stress and surface roughness effects in curvilinear thrust bearings. - Int. J. Appl. Mech. Engng, vol.7, Spec. Issue: SITC, pp.109-117.
  • Walicka A., Walicki E. and Jurczak P. (2002c): Effect of fluid inertia and wall porosity on parameters of a biobearing with squeeze film. - Exploitation Problems of Machines, No.3 (131), pp.145-155.
  • Walicka A., Walicki E., Jurczak P. and Michalski D. (2008): Couple-stress and surface roughness effects in curvilinear thrust bearings with a porous pad. - Int. J. Appl. Mech. Engng, vol.13, No.2, pp.563-574.
  • Walicki E. (2005): Rheodynamics of slide bearings lubrication (in Polish). - Zielona Gora: University Press.
  • Walicki E., Walicka A. and Karpiński T. (1996): Load capacity of a curvilinear thrust bearing with porous wall. - Tribologia, No.5, 1996, pp.610-620.
  • Walicki E., Walicka A. and Michalski D. (1997): The influence of wall's porosity on the pressure distribution in the curvilinear bearing lubricated by power-law fluid. - Proc. Nat. Conf.: Problems of Non-Conventional Bearing Systems, May 15-16, Lodz 1997, pp.102-109.
  • Walicki E. and Walicka A. (1998): Elements of the fluid friction theory. - Sci.Rep. TU of Opole, no.242, pp.377-392.
  • Walicki E. and Walicka A. (2000): Mathematical modelling of some biological bearings. - J. Smart Mat. Struct., vol.9, No.1, pp.280-285.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ5-0015-0018
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