Faculty of Mechanical Engineering, Lj. (FSLJ)
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Vpliv osnosimetričnega prednapetja tankega diska na njegove napetostno-deformacijske lastnosti : magistrsko delo magistrskega študijskega programa II. stopnje StrojništvoDrab, JanMagistrska naloga obravnava vpliv osnosimetričnega prednapetja tankega diska na njegove napetostno-deformacijske lastnosti. Vsak disk ima specifično hitrost vrtenja, pri kateri izgubi stabilnost ter ... začne prečno nihati, kar ni zaželeno predvsem v industriji krožnih žag. Cilj prednapetja je povečanje togosti diska, kar posledično zviša tudi njegove lastne frekvence in kritično vrtilno hitrost. Zato smo želeli preveriti, če lahko z metodo končnih elementov uspešno simuliramo proces prednapetja z valjčki. Za validacijo rezultatov smo izbrali prednapet komercialno dosegljiv disk, ki smo mu izmerili prečno togost in prečni profil žlebu. Ugotovili smo, da se rezultati simulacij dveh različno poenostavljenih modelov ujemajo z eksperimentalnimi meritvami. Analizirali smo vpliv sile prednapetja in radija valjanja na togost in lastne frekvence diska. Ugotovili smo, da je bil komercialno dosegljiv disk prednapet s silo valjanja 8,9 kN ter valjan na optimalnem radiju 100 mm. Kritična modalna oblika diska je bila oblika z dvema vozliščnima premeroma, pripadajočo lastno frekvenco pa smo s prednapetjem zvišali za 8,66%.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [J. Drab], 2022Language - slovenianCOBISS.SI-ID - 119827715
Author
Drab, Jan
Other authors
Klemenc, Jernej
Topics
magistrske naloge |
tanki disk |
prednapetje |
valjčki |
togost |
lastne frekvence |
končni elementi |
master thesis |
thin disc |
prestressing |
roller |
stiffness |
natural frequencies |
finite elements
Call number – location, accession no. ... |
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MAG 0000001130 IN: 70001130 MAG 1130 IN: 70001130 |
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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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Drab, Jan | |
Klemenc, Jernej | 16334 |
Source: Personal bibliographies
and: SICRIS
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