Nonsingular Meshless Method in an Acoustic Indoor Problem

Brański, A.; Prędka, E.

doi:10.24425/118082

Artykuł - szczegóły

Tytuł artykułu

Nonsingular Meshless Method in an Acoustic Indoor Problem

Autorzy

Brański A. , Prędka E.

Treść / Zawartość

Pełne teksty:

Brański_Nonsingular Meshless Method_1_2018.pdf

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Identyfikatory

DOI

10.24425/118082

Warianty tytułu

Języki publikacji

Abstrakty

An efficiency of the nonsingular meshless method is analyzed in an acoustic indoor problem. The solution is assumed in the form of the series of radial bases functions. The Hardy’s multiquadratic functions, as the bases, are taken into account. The room acoustic field with uniform, impedance walls is considered. The representative, rectangular cross section of the room is chosen. Practical combinations of acoustic boundary conditions, expressed through absorption coefficient values, are considered. The classical formulation of the boundary problem is used. It is established any coefficient in the multiquadratic functions depend on the number of influence points, the frequency and the absorption coefficient. All approximate results are calculated in relation to the exact ones. This way, it is proved that the meshless method based on the multiquadratic functions is simple and efficient method in the description of the complicated acoustic boundary problems for the low and medium ranges of frequency.

Słowa kluczowe

architectural acoustics meshless method radial bases functions impedance boundary condition

Wydawca

Instytut Podstawowych Problemów Techniki PAN
Komitet Akustyki PAN
Polskie Towarzystwo Akustyczne

Czasopismo

Archives of Acoustics

Rocznik

2018

Tom

Vol. 43, No. 1

Strony

75--82

Opis fizyczny

Bibliogr. 50 poz., rys., wykr.

Twórcy

autor

Brański A.

abranski@prz.rzeszow.pl

Department of Acoustics, Faculty of Electrical and Computer Engineering, Rzeszów University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

autor

Prędka E.

Department of Acoustics, Faculty of Electrical and Computer Engineering, Rzeszów University of Technology, al. Powstańców Warszawy 12, 35-959 Rzeszów, Poland

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-91f87804-6a79-44e0-80fd-10da79445017