25 KB1488 KB16 KB200020242013Ćurčija, DušanMamuzić, IlijaVodopivec, Francštevilka:1letnik:47str. 53-57ISSN:1580-2949COBISSID:954282URN:URN:NBN:SI:doc-CIPUHIJRenInštitut za kovinske materiale in tehnologijeMateriali in tehnologijeFourierova vrstahrapavostmazanjemetoda Monte CarloMonte Carlo methodReynoldsova enačbaCalculation of the lubricant layer for a coarse surface of a band and rolls| Izračun sloja maziva na grobi površini traku in valjev|The effect of the average roughness of a lubricated band caused by dressing processes is analysed by applying the Reynolds differential equation for lubrication with the incorporated average roughness and evolution in the Fourier series to the third member. The analysis has shown that the average roughness has two effects on the lubricant-layer thickness in the entering section of the deformation zone. For a small surface roughness, the nominal lubricant-layer thickness decreases slowly (if the process is treated as occurring on a smooth surface) and the thickness grows again with an increase in the roughness. The basis for the analysis was the numerical Monte-Carlo method and the developed approximate analytical solution was in acceptable agreement with the numerical methodAnaliziran je vpliv povprečne hrapavosti mazanega traku pri procesih dresiranja. Podlaga analize je Reynoldsova diferencialna enačba za mazanje z vključeno povprečno hrapavostjo in obravnavo s Fourierovo vrsto do tretjega člena. Analiza je pokazala, da ima povprečna hrapavost dva učinka na debelino plasti maziva v vhodnem preseku področja deformacije. Pri majhni začetni hrapavosti se nominalna debelina plasti maziva počasi zmanjšuje (če se proces obravnava, kot da poteka na gladki površini) in znova raste, če se povečuje hrapavost. Podlaga za analizo je bila numerična metoda Monte Carlo, razvita pa je bila tudi približna analitična rešitev, ki se zadovoljivo ujema z numeričnoTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije