Modeliranje rezonantnih apsorbera s ugodivim akustičkim značajkama

master's thesis

• Title (english): Modelling of resonant absorbers with adjustable acoustic characteristics
• Author: Ivan Vican
• Mentor: Kristian Jambrošić (mentor)
• Committee member: Kristian Jambrošić (predsjednik povjerenstva)
• Committee member: Ivan Đurek (član povjerenstva)
• Committee member: Marko Horvat (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2014-07-04, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Electrical Engineering

Abstract

Rezonatorski apsorberi se često koriste za ugađanje akustičkih značajki prostorija. Ovaj rad proširuje spomenuto područje koristeći prototip rezonatorskog absorbera s ugodivim akustičkim značajkama (apsorpcije i difuzije) koji uključuje dvije pomične perforirane ploče s 4 odjeljka različitih dubina. Prezentirani alati uključuju kompletan model za izračun apsorpcije koristeći impedancijske slojeve, odgovarajući kompjuterski simulator, i skriptu za računanje 2D podloge binarnog difuzora po izboru. Demonstrirana je ispravnost modela pomoću mjerenja u Kundtovoj cijevi i usporedbom s matematičkim modelom.

Abstract (english)

Resonator absorbers are widely used for tuning the acoustic characteristics of spaces. This thesis extends the research with a resonator prototype with adjustable acoustic characteristics (absorption and diffusion) by using two movable perforated plates with 4 sections, all containing different depths. Presented tools include a complete absorption calculation model by using impedance layers, corresponding computer simulator, and a script for calculating 2D binary diffuser layout of choice. A demonstration of validity for the model was given, by using measurements Kundt’s tube and comparing them to mathematical model.

• Keywords: rezonatorski apsorber; apsorpcija zvuka; perforirana ploča; ugodive akustičke značajke; binarni difuzor; akustička impedancija
• Keywords (english): resonator absorber; sound absorption; perforated plate; adjustable acoustic characteristics; binary diffuser; acoustic impedance
• Language: english
• URN:NBN: urn:nbn:hr:168:218497
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-02-06 14:17:34