20.500.12556/RUL-130352 Vpliv tlačnih pulziranj na segrevanje hidravličnega olja Influence of pressure oscillations on hydraulic oil heating Raziskovali smo kako tlačni udari vplivajo na segrevanje hidravličnega olja. To smo preizkusili z eksperimentom, kjer smo v cevi, ki je bila na koncu zaprta nihajoče spreminjali tlak s frekvencami od 0,5 do 40 Hz pri sistemskih tlakih 100, 200 in 300 bar. Te meritve so bile opravljene na ceveh dolžine 2 m in 3 m. Ugotovili smo, da se olje najbolj segreva pri višjih frekvencah ter višjih tlakih. Poleg tega pa smo opazili, da se cev in olje najbolj segrevata na sredini. We investigated the influence of pressure oscillations on the heating of hydraulic oil. The investigation was carried out by means of experiment in which we sent pressure oscillations into a pipe closed at one end. The frequencies of the oscillations were between 0.5 and 40 Hz, at system pressures of 100, 200 and 300 bar. These measurements were performed on a pipe of 2 and 3 m lenght. We found that the heating of the oil was most pronounced at higher frequencies and pressures. We also found that the pipe and the oil heated up the most in the middle of the pipe. hidravlično olje tlačni udari sistemski tlak frekvenca udarov segrevanje olja hydraulic oil pressure oscillations system pressure oscillations frequency oil heating true false false [M. Stražiščar] Slovenski jezik Angleški jezik Zaključna naloga 2021-09-14 08:30:43 2021-09-14 08:30:44 2023-11-06 11:17:15 0000-00-00 00:00:00 2021 0 Ljubljana 0 XII, 24 f., [6] str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 532.58:621.22:661.177(043.2) 233761 81607427 11259.pdf 11259.pdf 1 BFEB503DB7058C4E85425EBF92081E04 3f3f2b1f95e3d17a044b7a6c4e29fef189758283d8e093661552a8942f87eb5e 08d04650-1525-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=147446 Fakulteta za strojništvo 0 0 0