20.500.12556/RUL-128801 Vibroakustična analiza plošče Vibroacustic analysis of plate Mirno in tiho delovanje sodobnih izdelkov je bistvenega pomena za dolgo življenjsko dobo ter zadovoljstvo uporabnikov. Pomembna koraka razvojnega postopka novega izdelka tako predstavljata modalna in vibroakustična analiza, njuni rezultati pa morajo zadostiti predpisanim ciljnim specifikacijam. V okviru zaključne naloge smo na primeru ploščate laboratorijske strukture z meritvijo vzbujevalne sile in odzivnega pospeška ter zvočnega tlaka naredili eksperimentalni model. Njegovo natančnost smo analizirali preko primerjav frekvenčno prenosnih funkcij in lastnih oblik s pripadajočim numeričnim modelom ter poiskali vzroke za odstopanja. Vzporedna primerjava eksperimentalnih in numeričnih rezultatov je dokazala ustreznost obeh modelov. The calm and quiet operation of modern products is essential for a long service life and user satisfaction. Important steps in the development process of a new product are modal and vibroacoustic analysis, and their results must meet the prescribed target specifications. As part of the diploma thesis, we made an experimental model on the example of a flat laboratory structure by measuring the excitation force and the response acceleration and sound pressure. Its accuracy was analyzed through comparisons of frequency response functions and mode shapes with the corresponding numerical model and the causes of deviations were found. A parallel comparison of experimental and numerical results proved the adequacy of both models. metoda končnih elementov modalna analiza harmonska analiza tehnična akustika vibroakustika finite element method modal analysis harmonic analysis technical acoustics vibroacoustics true false false [G. Kljun] Slovenski jezik Angleški jezik Zaključna naloga 2021-07-30 08:30:29 2021-07-30 08:30:32 2022-09-07 04:17:16 0000-00-00 00:00:00 2021 0 Ljubljana 0 XV, 52 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1970-01-01 534.6:519.6:628.517(043.2) 230300 72980483 7461.pdf 7461.pdf 1 44500DE3008F11FA9EA068C04433942C 5ca5c13198b813b1482266251d449c7de950724630b5731866b876def11cbeab 77e0d327-f0ff-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=145686 Fakulteta za strojništvo 0 0 0