Investigation of the Acoustic Properties of a Metamaterial with a Multi-Ring Structure

• Autorzy: Szczepański Grzegorz , Podleśna Marlena , Morzyński Leszek , Włudarczyk Anna

Identyfikatory

DOI

10.24425/aoa.2023.146814

• Języki publikacji: EN

Abstrakty

EN

In this article, the authors present the geometry and measurements of the properties of an acoustic metamaterial with a structure composed of multiple concentric rings. CAD models of the structure were developed and subsequently used in numerical studies, which included the study of resonant frequencies using the Lanczos method and an analysis of sound pressure level distribution under plane wave excitation using the finite element method. Subsequently, experimental tests were carried out on models with the same geometry produced with three different materials (PLA, PET-G, and FLEX) using a fused deposition modeling 3D printing technique. These tests included: determining insertion loss for a single model based on tests using the measurement window of a reverberation chamber and determining transmission loss through tests in a semi-anechoic chamber. Sound wave resonance was obtained for frequencies ranging from 1700 to 6000 Hz. Notably, the experimental studies were carried out for the same structure for which numerical tests were conducted. The physical models of a metamaterial were manufactured using three different readily available 3D printing materials. The results of laboratory tests confirm that the created acoustic metamaterial consisting of multi-ring structures reduces noise in medium and high frequencies.

Słowa kluczowe

EN

acoustic metamaterials; numerical research; experimental research; finite element method; multiring structures

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2023
• Tom: Vol. 48, No. 4
• Strony: 497--507
• Opis fizyczny: Bibliogr. 20 poz., fot., rys., tab., wykr.

Twórcy

autor

Szczepański Grzegorz

• Central Institute For Labour Protection – National Research Institute Poland

• https://orcid.org/000-0003-0390-1624

autor

Podleśna Marlena

• Central Institute For Labour Protection – National Research Institute Poland

• https://orcid.org/000-0002-8401-8106

autor

Morzyński Leszek

• Central Institute For Labour Protection – National Research Institute Poland

• https://orcid.org/0000-0003-3534-+3284

autor

Włudarczyk Anna

• Central Institute For Labour Protection – National Research Institute Poland

• https://orcid.org/0000-0001-6613-1351

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).