Selected Aspects of Meshless Method Optimization in the Room Acoustics with Impedance Boundary Conditions

• Autorzy: Prędka Edyta , Kocan-Krawczyk Anna , Brański Adam

Identyfikatory

DOI

10.24425/aoa.2020.135252

• Języki publikacji: EN

Abstrakty

EN

Two optimization aspects of the meshless method (MLM) based on nonsingular radial basis functions (RBFs) are considered in an acoustic indoor problem. The former is based on the minimization of the mean value of the relative error of the solution in the domain. The letter is based on the minimization of the relative error of the solution at the selected points in the domain. In both cases the optimization leads to the finding relations between physical parameters and the approximate solution parameters. The room acoustic field with uniform, impedance walls is considered. As results, the most effective Hardy’s Radial Basis Function (H-RBF) is pointed out and the numer of elements in the series solution as a function of frequency is indicated. Next, for H-RBF and fixed n, distributions of appropriate acoustic fields in the domain are compared. It is shown that both aspects of optimization improve the description of the acoustic field in the domain in a strictly defined sense.

Słowa kluczowe

EN

architectural acoustics; meshless method; radial basis functions; impedance boundary condition

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2020
• Tom: Vol. 45, No. 4
• Strony: 647--654
• Opis fizyczny: Bibliogr. 18 poz., rys., tab., wykr.

Twórcy

autor

Prędka Edyta

• Department of Electrical and Computer Engineering Fundamentals, Faculty of Electrical and Computer Engineering, Technical University of Rzeszow, Rzeszow, Poland

autor

Kocan-Krawczyk Anna

• Department of Electrical and Computer Engineering Fundamentals, Faculty of Electrical and Computer Engineering, Technical University of Rzeszow, Rzeszow, Poland

autor

Brański Adam

• Department of Electrical and Computer Engineering Fundamentals, Faculty of Electrical and Computer Engineering, Technical University of Rzeszow, Rzeszow, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).