. . . . . "The universal numerical model for solution of the non-stationary three-dimensional temperature field of the system of mass casting cylindrical in shape - mould - environment has been realized. By using this program, the shape or cast temperature field an"@en . . . . "Optimization of technological parameters of the gravity-cast rolls for rolling rails"@en . "GA106/04/1334" . "2007-10-16+02:00"^^ . . . "1"^^ . . . . "1"^^ . . . . . . "Optimalizace technologick\u00FDch parametr\u016F gravita\u010Dn\u011B lit\u00FDch v\u00E1lc\u016F pro v\u00E1lcov\u00E1n\u00ED kolejnic" . "0"^^ . "57"^^ . "There will be elaborated a method of optimizing the technological parameters of heavy rolls (for rolling rails) cast by gravity into moulds cylindrical in shape and of optimizing their useful properties with the help of the original numerical 3-D model of the temperature field (model A) that will be developed in the framework of this solution, it will be pr\u00E9cised and verified experimentally on a real casting at the workshop of the Foundry Works T\u0159inec, a. s. The model compiled for the actual extent of diameters and lengths will solve the non-stationary 3-D temperature field of the system of casting cylindrical in shape (solidifying and cooling down) - mould - environment as expressively a non-linear task, with recognition the effect of all the technological elements. Knowledge about the temperature field of a mould will allow simultaneously to optimize the design of mould or the technological interventions to achieve its maximum possible service life. In addition, the critical sites in rolls"@en . "57"^^ . "Bude vypracov\u00E1na metodika optimalizace technologick\u00FDch parametr\u016F hmotn\u00FDch v\u00E1lc\u016F pro v\u00E1lcov\u00E1n\u00ED kolejnic gravita\u010Dn\u011B lit\u00FDch do v\u00E1lcov\u00FDch kokil a optimalizace jejich u\u017Eitn\u00FDch vlastnost\u00ED za pomoci origin\u00E1ln\u00EDho numerick\u00E9ho 3-D modelu teplotn\u00EDho pole (model A),kter\u00FD bude v r\u00E1mci \u0159e\u0161en\u00ED vyvinut, zp\u0159es\u0148ov\u00E1n a ov\u011B\u0159en experiment\u00E1ln\u011B na re\u00E1ln\u00E9m odlitku v provozu Sl\u00E9v\u00E1rny T\u0159inec, a. s. Sestaven\u00FD program pro aktu\u00E1ln\u00ED rozsah pr\u016Fm\u011Br\u016F a d\u00E9lek bude m\u00EDt tyto vlastnosti: bude \u0159e\u0161it nestacion\u00E1rn\u00ED t\u0159\u00EDrozm\u011Brn\u00E9 teplotn\u00ED pole soustavy v\u00E1lcov\u00FD odlitek (tuhnouc\u00ED a chladnouc\u00ED) -kokila - okol\u00ED jako v\u00FDrazn\u011B neline\u00E1rn\u00ED \u00FAlohu, s uv\u00E1\u017Een\u00EDm vlivu v\u0161ech technologick\u00FDch prvk\u016F a opat\u0159en\u00ED v\u010Detn\u011B nestandardn\u00EDch \u010Di speci\u00E1ln\u00EDch. Znalost utv\u00E1\u0159en\u00ED teplotn\u00EDho pole kokily dovol\u00ED sou\u010Dasn\u011B optimalizovat n\u00E1vrh jej\u00ED konstrukce, rekonstrukce \u010Di technologick\u00FDch z\u00E1sah\u016F k doc\u00EDlen\u00ED maxim\u00E1ln\u00ED mo\u017En\u00E9 \u017Eivotnosti kokily. Kritick\u00E1 m\u00EDsta v\u00E1lc\u016F budou nav\u00EDc posouzena modelem dendritick\u00E9 segregace prvk\u016F a krystalizace (model B) z hlediska jejich" . "http://www.isvav.cz/projectDetail.do?rowId=GA106/04/1334"^^ . "Neuvedeno."@en . . "Byl sestaven univerz\u00E1ln\u00ED numerick\u00FD model pro \u0159e\u0161en\u00ED nestacion\u00E1rn\u00EDho t\u0159\u00EDrozm\u011Brn\u00E9ho teplotn\u00EDho pole soustavy hmotn\u00FD v\u00E1lcov\u00FD odlitek-kokila-okol\u00ED, pou\u017Eiteln\u00FD pro r\u016Fzn\u00E9 rozm\u011Bry v\u00E1lc\u016F a kokil. Program umo\u017E\u0148uje analyzovat teplotn\u00ED pole odlitku i formy a zohled"@cs . . .