Vibration reduction assessment of layered acoustic metamaterial

• Autorzy: Świrk Patrycja , Żyłka Wojciech , Leniowska Lucyna , Grochowina Marcin

Identyfikatory

DOI

10.21008/j.0860-6897.2022.2.21

• Języki publikacji: EN

Abstrakty

EN

Acoustic meta-materials offer an approach to reducing the vibration and noise transmission through layered panels. In this paper, the investigation of constructed meta-material for reduction of low-frequency vibration and noise is a major concern. The key concept underlying this approach is to construct the metamaterial as a highly-distributed system of tuned point masses that introduce instead of low resonance frequency one or more bands of higher frequency. They can be then successfully damped with passive methods. Using the modes method, a metamaterial system with distributed point masses integrated into the honeycomb core was designed to be a representative layered panel. To determine the dynamic response of the global sandwich panel, the metamaterial system was tested for 70 Hz and 120 Hz excitation. The obtained results confirm the possibility of tuning the considered layered meta-material to the excitation frequency and shifting low frequencies towards higher frequencies.

Słowa kluczowe

EN

reduction of vibration; layered plate; acoustic metamaterial; point mass; distributed model

PL

redukcja drgań; płyta warstwowa; metamateriały akustyczne; masa punktowa; model rozproszony

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2022
• Tom: Vol. 33, nr 2
• Strony: art. no. 2022221
• Opis fizyczny: Bibliogr. 11 poz., il. kolor., fot., wykr.

Twórcy

autor

Świrk Patrycja

• University of Rzeszow

• https://orcid.org/0000-0002-6990-9031

autor

Żyłka Wojciech

• University of Rzeszow

• https://orcid.org/0000-0001-8896-3335

autor

Leniowska Lucyna

• University of Rzeszow

• https://orcid.org/0000-0002-7994-7867

autor

Grochowina Marcin

• University of Rzeszow

• https://orcid.org/0000-0001-6033-0210

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).