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Magnetic fluid based squeze film behaviour between rotating porous circular plates with a concentric circular pocket and surface roughness effects

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Efforts have been made to analyze the magnetic fluid based squeeze film between rotating porous circular plates with a concentric pocket. The porous housing is considered to be elastically negligibly deformable with its contact surface rough. The stochastic film thickness characterizing the roughness is considered to be asymmetric with zero mean and non-zero variance. The modified Reynolds' equation is solved in order to get pressure distribution which in turn, is used to obtain the expression for load carrying capacity. Then by making use of this expression we find the response time. These expressions are numerically computed and the results are presented graphically as well as in a tabular form. It is observed that the presence of pocket and the roughness of the surfaces affect the performance of the bearing adversely. However, the performance of the bearing gets enhanced due to negatively skewed roughness and the magnetic fluid.
Rocznik
Strony
271--277
Opis fizyczny
Bibliogr. 21 poz., rys., tab., wykr.
Twórcy
autor
  • Department of Mathematics, Gujarat Arts and Science College Ahmedabad - 380 006 Gujarat State, INDIA
autor
  • Department of Mathematics, Sardar Patel University Vallabh Vidyanagar - 388 120 Gujarat State, INDIA
Bibliografia
  • [1] Andharia P.I., Gupta J.L. and Deheri J.L. (1999): Effect of transverse roughness on the behaviour of squeeze film in a spherical bearing. - Applied Mechanics and Engineering, vol.4, No.l, pp. 19-24.
  • [2] Andharia P.I., Gupta J.L. and Deheri J.L. (2001): Effect of surface roughness on hydrodynamic lubrication of slider bearings. - Tribology Transactions, vol.44, No.2, pp.291-297.
  • [3] Archibald F.R. (1956): Load capacity and time relations for squeeze films. - J. Basic Eng., Series D, vol.78, pp.A231-A245.
  • [4] Bhat M.V. and Deheri G.M. (1991): Squeeze film behaviour in porous annular disks lubricated with magnetic fluid. - Wear,vol.l51,pp. 123-128.
  • [5] Bhat M.V. and Deheri G.M. (1993): Magnetic fluid based squeeze film in curved porous circular disks. - Journal of Magnetism and Magnetic Materials, vol.l27, pp. 159-162.
  • [6] Christensen H. and Tonder K. (1969a): Tribology of rough surfaces; stochastic models of hydrodynamic lubrication. - SINTEF, Section for Machine Dynamics in Tribology, Technical University of Norway, Trondheim, Norway, Report No. 10/69-18.
  • [7] Christensen H. and Tonder K. (1969b): Tribology of rough surfaces; parametric study and comparison of lubrication models. - SINTEF, Section for Machine Dynamics in Tribology, Technical University of Norway, Trondheim, Norway, Report No.22/69-18.
  • [8] Christensen H. and Tonder K. (1970): The hydrodynamic lubrication of rough bearing surfaces of fiinite width. - ASME-ASLE Lubrication Conference, Cincinnati, Ohio, October 12-15, 1970, 70-Lub-7.
  • [9] Guha S.K. (1993): Analysis of dynamic characteristics of hydrodynamic journal bearings with isotropic roughness effects. - Wear, vol.l67, No.l, pp.173-180.
  • [10] Gupta J.L. and Deheri J.L. (1996): Effect of roughness on the behaviour of squeeze film in a spherical bearing. - Tribology Transaction, vol.39, pp.99-102.
  • [11] Murti P.R.K. (1974): Squeeze film behaviour in porous circular disks. - J. Lubr. Technol., vol.96, pp.206-209.
  • [12] Prajapati B.L. (1991): Behaviour of squeeze film between rotating porous circular plate: surface roughness and elastic deformation effects. - Pure and Appl. Math. Sci., vol.33, No. 1-2, pp.27-36.
  • [13] Prajapati B.L. (1992): Squeeze film behaviour between rotating porous circular plates with a concentric circular pocket: surface roughness and elastic deformation effects. - Wear, vol.l52, pp.301-307.
  • [14] Prakash J. and Vij S.K. (1973): Load capacity and time-height relations for sąueeze films between porous plates. - Wear, vol.24, pp.309-322.
  • [15] Prakash J. and Tiwari K. (1983): Roughness effects in porous circular squeeze-plates with arbitrary wall thickness. — Journal of Lubrication Technology, vol.l05, pp.90-95.
  • [16] Shah R.C. and Bhat M.V. (2000): Magnetic fluid based squeeze film in curved porous circular disks. — Journal of Magnetism and Magnetic Materials, vol.208, pp.l 15-119.
  • [17] Ting L.L. (1975): Engagement behaviour of lubricated porous annular disks. - Wear, vol.34, pp.159-182.
  • [18] Tzeng S.T. and Saibel E. (1967): Surface roughness effect on slider bearing lubrication. - ASLE Transactions, vol.l0, pp.334-340.
  • [19] Verma P.D.S. (1986): Magnetic fluid based squeeze film. - Int. J. Engng. Sci., vol.24, pp.395-401.
  • [20] Wu H. (1970): Squeeze film behaviour for porous annular disks. - J. Lubr. Technol., vol.92, pp.206-209.
  • [21] Wu H. (1971): The squeeze film between rotating porous annular disks. - Wear, vol.l8, pp.461-470.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ2-0005-0009
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