20.500.12556/RUL-118839 Dinamska analiza prožne strukture pri visokih vrtilnih hitrostih Dynamic analysis of flexible structure at high rotational speeds Zaključna naloga obravnava prožno strukturo oziroma rezilno nitko, ki se jo uporablja za košenje trave. Njeno delovanje je v nalogi analizirano z uporabo teorije dinamike sistema togih teles – nitka je razdeljena na več delov, katerim so pripisane potrebne geometrijske in materialne lastnosti, narejen pa je tudi fizikalni in numerični model nitke. Na podlagi dobljenega modela in z uporabo programskega orodja Python je bila v fazi analize izvedena simulacija, ki je opisana v rezultatih zaključne naloge. Tam je prikazan primer vrtenja nitke z vzbujevalnim pospeškom ter odziv nitke na različne obremenitve. The diploma thesis examines the dynamics of the flexible structure. More precisely, it deals with the cutting line used in string trimmers. Its activity is analyzed using the theory of the dynamics of a rigid body system – the line is divided into several parts, the necessary geometric and material properties are attributed to them, and the line’s physical and numerical model is made. Using obtained models and the Python software, a simulation was performed in the analysis phase. This simulation is described in the results section of the thesis. In there, an example of the line rotation with constant acceleration is presented and there is also discussed how the string responds to different strains. dinamika sistema togih teles prožna struktura dinamska analiza numerični model simulacija dynamics of the system of rigid bodies flexible structure dynamic analysis numerical model simulation true false false [E. Petrovič] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2020-09-01 08:31:55 2020-09-01 08:31:57 2022-08-31 03:50:09 0000-00-00 00:00:00 2020 0 Ljubljana 0 28 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 531.391:519.6:004.94(043.2) 222915 27107075 5746.pdf 5746.pdf 1 12EFC2F3BD0025E25FFB265D980CD233 bdfcff8f08765d4fadc855ee0466ce9a3d19ba4ab92d549b5eb59e8bf293f3ed 9996cb84-a1b9-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=133241 Fakulteta za strojništvo 0 0 0