20.500.12556/RUL-129537 Modalna analiza sistema z večimi prostostnimi stopnjami Modal analysis of a system with multiple degrees of freedom V zaključni nalogi je opravljena modalna analiza dinamskega sistema z večimi prostostnimi stopnjami. Najprej je predstavljena teorija, ki smo jo uporabili za preračun sistema. Teorija vključuje osnove nihanja, matrični zapis enačb, metodo Runge-Kutta ter predpostavka o majhnih kotih. Po teoriji sledi izpeljava gibalnih enačb, njun zapis v matrični obliki ter definicija harmoničnega vzbujanja. Končno je opravljen preračun v programu Wolfram Mathematica, ki vključuje določitev lastnih frekvenc, oblik ter izris lastnega in vzbujenega odziva sistema. This work presents the modal analysis of a multiple degree of freedom system. Firstly the theory, which was used to deduce the equation of motion and to perform the modal analysis is presented. Theory includes basics of oscilation, matrix formulation of equations, the Runge-Kutta method and small angle approximation. Afterwards the derivation of equations of motion , which are written in matrix notation is presented along with the harmonic excitation. The modal parameters are calculated using numerical modal analysis with Mathematica software. Within the results, the own and forced responses of the system are presented and the parametric analysis is performed. modalna analiza sistem z večimi prostostnimi stopnjami lastne frekvence harmonično vzbujanje odziv sistema modal analysis multiple degree of freedom systems natural frequencies harmonic excitation system response true false false [M. Trček] Slovenski jezik Angleški jezik Zaključna naloga 2021-09-04 08:31:16 2021-09-04 08:31:17 2022-09-08 04:09:07 0000-00-00 00:00:00 2021 0 Ljubljana 0 XII, 31 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 534.1:534.242:519.6(043.2) 232795 81066243 8861.pdf 8861.pdf 1 BBC63400FE04991C70D91DAC681370FC 6b3f3f757ff98e0926d77a5589d839f3e435f91e1c201127f0428a7d1cdc9989 78f46434-0d49-11ec-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=146541 Fakulteta za strojništvo 0 0 0