Metrika

  • citati u SCIndeksu: [3]
  • citati u CrossRef-u:0
  • citati u Google Scholaru:[]
  • posete u poslednjih 30 dana:0
  • preuzimanja u poslednjih 30 dana:0

Sadržaj

članak: 2 od 2  
Back povratak na rezultate
Efekat hrapavosti površine na performanse klizećeg poroznog ležaja sa dve paralelne strane, magnetnim fluidom i brzinom klizanja
Department of Mathematics, Sardar Patel University, V.V. Nagar, India

e-adresandpatel2002@gmail.com, gm.deheri@rediffmail.com
Ključne reči: klizač sa paralelnim stranama; magnetni fluid; hrapavost; brzina klizanja; poroznost; pritisak
Sažetak
Učinjen je napor da se istraže performanse transverzalno hrapavog poroznog kliznog ležaja sa dve paralelne strane i brzinom klizanja, korišćenjem magnetnog fluida kao podmazivača. Odgovarajuća Rejnoldsova jednačina je stohastički usrednjena u odnosu na slučajni parameter hrapavosti koji karakteriše hrapavost. Sa gledišta pogodnih graničnih uslova ova jednačina je rešena da bi se dobio raspored pritisaka koji dolazi iz računanja nosivosti. Pored toga, trenje na klizaču je takođe računato. Sračunati rezultati predstavljeni grafički ukazuju da magnetni fluidni podmazivač poboljšava performanse nosećeg sistema. Negativno zakošena hrapavost dalje povećava ionako uvećanu nosivost zbog magnetizacije. Ovaj efekat postaje izraženiji kada je variansa (-ve) uključena. Mada, poroznost, brzina klizanja i standardna devijacija umanjuju nosivost, ovaj negativan efekat može biti minimizovan magnetnim fluidom kao podmazivačem u slučaju negativno zakošenih neravnina. Pored toga, trenje ostaje nepromenjeno.
Reference
Andharia, P.I., Gupta, J.L., Deheri, G.M. (1997) Effect of longitudinal surface on hydrodynamic lubrication of slider bearings. u: International Conference on surface modification technologies (X), Proc, The Institute on Materials, str.p. 872-880
Bhat, M.V. (2003) Lubrication with a magnetic fluid. India: Team Spirit
Bhat, M.V. (1978) Optimum profile for the magnetohydrodynamic parallel-plate porous slider. Wear, 51(1): 49-55
Christensen, H., Tonder, K.C. (1969) Tribology of rough surfaces: Stochastic models of hydrodynamic lubrication. SINTEF Report, br. 10/69-18
Christensen, H., Tonder, K.C. (1969) Tribology of rough surfaces: Parametric study and comparison of lubrication models. SINTEF Report, br. 22/69-18
Christensen, H., Tonder, K.C. (1970) The hydrodynamic lubrication of rough bearing surfaces of finite width. u: ASME-ASLE lubrication conference, Paper br. 70-lub-7
Deheri, G., Patel, H., Patel, R. (2011) Load carrying capacity and time height relation for squeeze film between rough porous rectangular plates. Annals of Faculty Engineering Hunedoara International J. of Eng, Tome IX
Guha, S.K. (1993) Analysis of dynamic characteristics of hydrodynamic journal bearings with isotropic roughness effects. Wear, Vol.167, p.p.173-179
Gupta, J.L., Deheri, G.M. (1996) Effect of roughness on the behavior of squeeze film in a spherical bearing. Tribology Transcations, vol. 39, str.p. 99-102
Jenkins, J. (1972) A magnetic fluid. Arch. Ration., Mech. Anal, 46(1) 42
Paras, R., Verma, P.D.S. (1999) Ferrofluid lubrication in porous inclined slider bearing. Indian J. pure appl. Math., 30, 1273-1281
Patel, N., Deheri, G. (2011) Shliomis model based ferrofluid lubrication of a plane inclined slider bearing with slip velocity. International J. of fluids engineering, 3, No 3, 311-324
Prajapati, B.L. (1995) On certain theoretical studies in hydrodynamics and electro magnetohydrodynamic lubrication. Vallabh Vidhyanagar: S.P. University, Dissertation
Prakash, J., Tiwari, K. (1982) Lubrication of a porous bearing with surface corrugations. J. Lub. Tech. Trans. ASME, vol. 104, str.p. 127-134
Ramanaiah, G. (1967) Optimum Load Capacity of a Parallel Plate Slider Bearing with Nonuniform Magnetic Field. Japanese Journal of Applied Physics, 6(7): 797-801
Shah, R.C., Bhat, M.V. (2003) Podmazivanje gvozdenim fluidom ležišta sa stisnutim filmom. Theoretical and Applied Mechanics, br. 30, str. 221-240
Shah, R.C., Bhat, M.V. (2005) Lubrication of porous parallel plate slider bearing with slip velocity, material parameter and magnetic fluid. Industrial Lubrication and Tribology, 57(3): 103-106
Ting, L.L. (1975) Engagement behaviour of lubricated porous annular disks, Part I: Squeeze film phase, surface roughness and elastic deformation effects. Wear, vol. 34, str.p. 159-182
Tzeng, S.T., Saibel, E. (1967) Surface roughness effect on slider bearing lubrication. Trans. ASME, J. Lub. Tech, vol. 10, str.p. 334-338