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2015, vol. 43, br. 2, str. 144-153
Dženkinsov model zasnovan na magnetnom fluidu baziranom na stisnutom filmu kod savijenih hrapavih okruglih ploča sa aspekta brzine klizanja - poređenje oblika
Department of Mathematics, Sardar Patel University, Vallabh Vidyanagar, Gujarat, India

e-adresapatel.jimitphdmarch2013@gmail.com
Sažetak
U radu se upoređuju performanse Dženkinsovog modela zasnovanog na magnetnom fluidu baziranom na stisnutom filmu kod savijenih hrapavih okruglih ploča sa aspekta brzine klizanja, pri različitim oblicima površine. Poređenje je vršeno kod tri različita oblika površine (eksponencijalni, hiperbolični i sekantni). Za analizu uticaja klizanja korišćen je Biversov i Džozefov model. Kristensenov i Tonderov model prosečnih statističkih vrednosti je usvojen za proučavanje uticaja površinskih neravnina. Rešava se generalisana jednačina Rejnoldsovog tipa da bi se dobila distribucija pritiska koja se koristi za izračunavanje kapaciteta opterećenja. Rezultati prikazani u obliku grafika potvrđuju da Dženkinsov model modifikuje performanse Nojringer-Rosensvajgovog modela. Dženkinsov model zasnovan na podmazivanju gvozdenim fluidom je donekle napredniji jer redukuje nepovoljan uticaj hrapavosti i brzine klizanja, što je u većoj meri izraženo kod eksponencijalnog oblika. Zanimljivo je primetiti da je kod eksponencijalnog oblika kombinovani uticaj magnetizma i negativno ukrštene hrapavosti veći, čak i kod većih vrednosti parametra klizanja.
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