19 KB154 KB18 KB200020242004Črnko, JosipLazić, Ladislavštevilka:3/4letnik:385 stranistr. 143-147ISSN:1580-2949COBISSID:359594URN:URN:NBN:SI:doc-7NS0D636enInštitut za kovinske materiale in tehnologijeMateriali in tehnologijedeformacijefinite element methodkontinuirno litjematematični modelimetoda končnih elementovnapetostiohlajanjeFinite-element thermal analysis of a new cooler design|A mathematical model of the cooling process of an octagonal cross-section steel semi-product was constructed on the basis of the finite-element analysis technique. The temperature variation throughout the structure causes thermal contraction stresses and deformations. Transient heat-conduction analyses and thermal stress analyses were performed to determine the allowable rate of cooling with regard to the temperature distribution within the structure and the stresses and deformations resulting from the variation of the heat-transfer coefficient of forced convectionNa osnovi metode končnih elementov je bil razvit matematični model procesa ohlajanja jeklenega polproizvoda z osmerokotnim prerezom. Sprememba temperature po prerezu povzroči termične krčilne napetosti in deformacije. Izvršene so bile analize toplotne prevodnosti in toplotnih napetosti z namenom, da se določi dopustna hitrost ohlajanja z upoštevanjem porazdelitve temperature po prerezu ter napetosti in deformacije zaradi spremembe koeficienta prenosa toplote pri prisiljeni konvekcijiTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaInštitut za kovinske materiale in tehnologije