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2014, vol. 42, br. 1, str. 56-66
Teorijsko proučavanje Šliomisovog modela zasnovanog na magnetnom fluidu baziranom na stisnutom filmu kod hrapavih zakrivljenih prstenastih ploča sa odabranom poroznom strukturom
Sardar Patel University, Department of Mathematics, Vallabh Vidyanagar, Gujarat, India

e-adresapatel.jimitphdmarch2013@gmail.com
Ključne reči: porous structures; magnetic fluid; curved annular plates; squeeze film; roughness
Sažetak
U ovom teorijskom istraživanju razmatra se uticaj Šliomisovog modela, baziranog na podmazivanju gvozdenim fluidom, na stisnuti film između zakrivljenih hrapavih prstenastih ploča poređenjem sa dve različite porozne strukture. Kozeni-Karmanova formulacija i Irmejev model su usvojeni za porozne strukture. Stohastički modeli Kristensena i Tondera se koriste za karakterizaciju poprečne hrapavosti. Jednačina Rejnoldsovog tipa se rešava da bi se dobila distribucija pritiska, što dovodi do izračunavanja nosivosti. Grafički prikaz pokazuje da se nepovoljan uticaj poprečne hrapavosti može minimizovati pozitivnim efektom magnetizacije u slučaju negativno ukrštene hrapavosti izborom odgovarajućih parametara krivine. Dalje, izgleda da je ova kompenzacija veća u slučaju Irmejevog modela u poređenju sa Kozeni- Karmanovom metodom, što Irmejev metod čini pogodnijim za usvajanje. Utvrđeno je da efekat parametra morfologije i parametra koncentracije zapremine povećava nosivost sistema ležajeva.
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