. "RIV/68407700:21220/06:02125718!RIV09-MSM-21220___" . "Zpr\u00E1va se zab\u00FDv\u00E1 modelem pohonu s kuli\u010Dkov\u00FDm \u0161roubem z hlediska teplotn\u00EDch vliv\u016F na chybu polohov\u00E1n\u00ED. Aby bylo dosa\u017Eeno vy\u0161\u0161\u00ED p\u0159esnosti a tuhosti pohonu, jsou kuli\u010Dkov\u00E9 \u0161rouby \u010Dasto p\u0159edepnuty. Av\u0161ak toto p\u0159edepnut\u00ED m\u00E1 negativn\u00ED dopad na n\u00E1r\u016Fst t\u0159ec\u00EDho momentu resp. tepla. V pohonu vznik\u00E1 probl\u00E9m p\u0159edepnut\u00ED z d\u016Fvodu zm\u011Bny teplotn\u00EDho pole - zdroje tepla v lo\u017Eisc\u00EDch se stanou nestacion\u00E1rn\u00ED, jeliko\u017E produkce tepla je z\u00E1visl\u00E1 na zm\u011Bn\u011B axi\u00E1ln\u00ED s\u00EDly ve \u0161roubu, kter\u00E1 je z\u00E1visl\u00E1 na teplotn\u00ED deformaci. Vznik\u00E1 tak uzav\u0159en\u00E1 smy\u010Dka. Model, kter\u00FD zachycuje teplotn\u011B mechanickou podstatu probl\u00E9mu byl proveden nejprve pro pohon na experiment\u00E1ln\u00EDm za\u0159\u00EDzen\u00ED a to, jak s klasick\u00FDm \u0161roubem, tak se \u0161roubem chlazen\u00FDm. D\u00E1le je \u00FAloha \u0159e\u0161ena na pohonu re\u00E1ln\u00E9ho obr\u00E1b\u011Bc\u00EDho stroje. Spolu s MKP anal\u00FDzou byly provedeny experimenty." . . "2"^^ . . "A FEA model of ball screw drive including thermal influence on positioning error is introduced in this paper. In order to achieve high accuracy and great stiffness, the ball screw preload is common solution of removing the backlash of the ball screw. Consequently the applied preload on screw shaft produces more heat through friction. Thus a thermally induced preload problem is introduced - the heat source in the bearing becomes non-steady because of the coupling between the generated friction heat and the axial force of screw shaft changed by thermal deformation. The model including thermo-mechanical principle of the problem was simulated for drive of experimental bed with both classic and cooled ball screw. The same analysis was performed for ball screw drive system of real machine tool. Experiments were carried out together with FEA."@en . "Horej\u0161, Otakar" . . "Hornych, Jan" . . "Thermo Mechanical Model of Ball Screw Drive Syst\u00E9m"@en . . . . "[A3E01A1EB9C7]" . "Teplotn\u011B mechanick\u00FD model pohonu s kuli\u010Dkov\u00FDm \u0161roubem"@cs . . . "P(1M0507)" . . "Teplotn\u011B mechanick\u00FD model pohonu s kuli\u010Dkov\u00FDm \u0161roubem" . . "2"^^ . "Teplotn\u011B mechanick\u00FD model pohonu s kuli\u010Dkov\u00FDm \u0161roubem" . "Teplotn\u011B mechanick\u00FD model pohonu s kuli\u010Dkov\u00FDm \u0161roubem"@cs . "Thermo Mechanical Model of Ball Screw Drive Syst\u00E9m"@en . . . . "RIV/68407700:21220/06:02125718" . "Zpr\u00E1va se zab\u00FDv\u00E1 modelem pohonu s kuli\u010Dkov\u00FDm \u0161roubem z hlediska teplotn\u00EDch vliv\u016F na chybu polohov\u00E1n\u00ED. Aby bylo dosa\u017Eeno vy\u0161\u0161\u00ED p\u0159esnosti a tuhosti pohonu, jsou kuli\u010Dkov\u00E9 \u0161rouby \u010Dasto p\u0159edepnuty. Av\u0161ak toto p\u0159edepnut\u00ED m\u00E1 negativn\u00ED dopad na n\u00E1r\u016Fst t\u0159ec\u00EDho momentu resp. tepla. V pohonu vznik\u00E1 probl\u00E9m p\u0159edepnut\u00ED z d\u016Fvodu zm\u011Bny teplotn\u00EDho pole - zdroje tepla v lo\u017Eisc\u00EDch se stanou nestacion\u00E1rn\u00ED, jeliko\u017E produkce tepla je z\u00E1visl\u00E1 na zm\u011Bn\u011B axi\u00E1ln\u00ED s\u00EDly ve \u0161roubu, kter\u00E1 je z\u00E1visl\u00E1 na teplotn\u00ED deformaci. Vznik\u00E1 tak uzav\u0159en\u00E1 smy\u010Dka. Model, kter\u00FD zachycuje teplotn\u011B mechanickou podstatu probl\u00E9mu byl proveden nejprve pro pohon na experiment\u00E1ln\u00EDm za\u0159\u00EDzen\u00ED a to, jak s klasick\u00FDm \u0161roubem, tak se \u0161roubem chlazen\u00FDm. D\u00E1le je \u00FAloha \u0159e\u0161ena na pohonu re\u00E1ln\u00E9ho obr\u00E1b\u011Bc\u00EDho stroje. Spolu s MKP anal\u00FDzou byly provedeny experimenty."@cs . "503437" . "21220" . "FEM; ball screw; contacttemperature measurement; feed drive system; positioning error"@en . . . .