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Application of finite element method for estimation of acoustic parameters

Papadakis Nikolaos

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URIhttp://purl.tuc.gr/dl/dias/41793DA5-64F7-4B09-992D-6903E3503092-
Identifierhttps://doi.org/10.26233/heallink.tuc.73993-
Languageen-
Extent201 pagesen
TitleApplication of finite element method for estimation of acoustic parametersen
TitleΧρήση της μεθόδου των πεπερασμένων στοιχείων για τον υπολογισμό ακουστικών μεγεθών el
CreatorPapadakis Nikolaosen
CreatorΠαπαδακης Νικολαοςel
Contributor [Thesis Supervisor]Stavroulakis Georgiosen
Contributor [Thesis Supervisor]Σταυρουλακης Γεωργιοςel
Contributor [Co-Supervisor]Manousaki Dafnien
Contributor [Co-Supervisor]Μανουσακη Δαφνηel
Contributor [Co-Supervisor]Provatidis, Christopheren
Contributor [Committee Member]Antoniadis Aristomenisen
Contributor [Committee Member]Αντωνιαδης Αριστομενηςel
Contributor [Committee Member]Sotiropoulos Dimitrisen
Contributor [Committee Member]Σωτηροπουλος Δημητρηςel
Contributor [Committee Member]Ouggrinis Konstantinos-Alketasen
Contributor [Committee Member]Ουγγρινης Κωνσταντινος-Αλκεταςel
Contributor [Committee Member]Providakis Konstantinosen
Contributor [Committee Member]Προβιδακης Κωνσταντινοςel
PublisherΠολυτεχνείο Κρήτηςel
PublisherTechnical University of Creteen
Academic UnitTechnical University of Crete::School of Production Engineering and Managementen
Academic UnitΠολυτεχνείο Κρήτης::Σχολή Μηχανικών Παραγωγής και Διοίκησηςel
Content SummaryIn the field of computational acoustics, the calculation of the impulse response of a space is of vital importance. Acoustic parameters, frequency response and the cumulative spectral decay can directly be extracted from the impulse response. This thesis contributes on the development and utilization of a Finite Element Method in the Time Domain for estimating the impulse response and acoustic parameters of a room. A methodology is developed for resolving the most crucial elements involving the Finite Element Method in the Time Domain. In order to develop an accurate method, we considered different modeling parameters (source selection, modeling of walls and acoustic material) and different parameters for the numerical scheme (finite element meshes, time stepping method, time stepping scales). For this purpose the impulse responses and the acoustic parameters of a reverberant space were computed and then compared with the measured ones. The results showed that the Time Domain Finite Element Method is an applicable method that provides good results for the calculation of the impulse response and acoustic parameters in a reverberant room. As a utilization of the Time Domain Finite Element Method the method was applied in a Virtual Reverberation Chamber for the calculation of the absorption coefficients of an acoustic panel. The results showed that the method can be used for the prediction of the absorption characteristics of acoustic panels of various shapes prior to their manufacture.en
Type of ItemΔιδακτορική Διατριβήel
Type of ItemDoctoral Dissertationen
Licensehttp://creativecommons.org/licenses/by-nc-nd/4.0/en
Date of Item2018-04-16-
Date of Publication2017-
SubjectΜέθοδος πεπερασμένων στοιχείωνel
SubjectFinite element methoden
SubjectΥπολογιστική ακουστικήel
SubjectComputational acousticsen
SubjectΑρχιτεκτονική ακουστικήel
SubjectArchitectural acousticsen
Bibliographic CitationNikolaos Papadakis, "Application of finite element method for estimation of acoustic parameters", Doctoral Dissertation, School of Production Engineering and Management, Technical University of Crete, Chania, Greece, 2017en
Bibliographic CitationΝικόλαος Παπαδάκης, "Χρήση της μεθόδου των πεπερασμένων στοιχείων για τον υπολογισμό ακουστικών μεγεθών", Διδακτορική Διατριβή, Σχολή Μηχανικών Παραγωγής και Διοίκησης, Πολυτεχνείο Κρήτης, Χανιά, Ελλάς, 2017el

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