zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program
Gregor Kljun (Author), Gregor Čepon (Mentor)

Abstract

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.

Keywords

diplomske naloge;metoda končnih elementov;modalna analiza;harmonska analiza;tehnična akustika;vibroakustika;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FS - Faculty of Mechanical Engineering
Publisher: [G. Kljun]
UDC: 534.6:519.6:628.517(043.2)
COBISS: 72980483 Link will open in a new window
Views: 378
Downloads: 82
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Other data

Secondary language: English
Secondary title: Vibroacustic analysis of plate
Secondary abstract: 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.
Secondary keywords: thesis;finite element method;modal analysis;harmonic analysis;technical acoustics;vibroacoustics;
Type (COBISS): Final paper
Study programme: 0
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za strojništvo
Pages: XV, 52 f.
ID: 13192020
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