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Izračun kontaktnih temperatur z več različnimi modeli = Contact temperature calculation using several theoretical modelsKalin, Mitjan ; Vižintin, JožeObrabne in torne lastnosti površin v kontaktu so znatno odvisne od kontaktnih temepratur, zato je njihova določitev velikega pomena v vsaki tribološki aplikaciji. Številni modeli za izračun ... kontaktnih temperatur, ki so na voljo v literaturi uporabljajo precej različne fizikalne, dinamične in geometrijske predpostavke. Posledica tega so velika razhajanja rezultatov za isti računski primer. Še več, med neobhodnimi predpostavkami so tudi številne lastnosti kontaktnih površin, ki pa so običajno neznane zaradi težav pri njihovi natančni določitvi. Zaradi tribološkega delovanja so površine izpostavljene neprestanim spremembam mehanskih, termičnih in kemijskih lastnosti, pa tudi faznim trasnformacijam, porušitvam mejnih mazalnih filmov itd. Čeprav so ta dejstva splošno znana, se jih velikokrat pri izračunih ne upošteva. V predstavljenem delu smo analizirali vpliv lastnosti kontaktnih površin med jeklom in silicijevim nitridom v pogojih suhega in mejnega mazanja. Predstavljeni so vplivi spremembe termičnih lastnosti, koeficienta trenja in realne kontaktne površine na izračun kontaktnih temperatur. Za analizo smo uporabili deset različnih teoretičnih modelov. Rezultati kažejo velike razlike med posameznimi modeli in še posebej izjemen vpliv lastnosti kontaktnih površin na izračunane temperature.Source: [Program in knjiga povzetkov] = [Program and book of abstracts] (Str. 71)Type of material - conference contributionPublish date - 2001Language - slovenian, englishCOBISS.SI-ID - 4836379
Author
Kalin, Mitjan |
Vižintin, Jože
Topics
temperature kontaktne |
izračuni temperatur |
lastnosti površin |
obraba |
trenje
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Kalin, Mitjan | 14556 |
Vižintin, Jože | 00812 |
Source: Personal bibliographies
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