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Browsing by Subject "waveguide"

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  • thumbnail.journal.alt
    Item type:Book Chapter, Access status: Open Access ,
    Stanowisko badawcze do demonstracji działania dźwiękochłonnych metamateriałów akustycznych w falowodach o przekroju okrągłym
    (Wydawnictwa AGH, 2024) Książek, Piotr
    This paper is concerned with the construction of a demonstration kit to illustrate the applications of acoustic resonance-based suppressors in the context of narrowband industrial noise suppression. The kit consists of two main components – a circular waveguide and interchangeable silencer elements inserted into the waveguide channel. The functionality of the attenuators is demonstrated using an application that compares the acoustic spectrum of the signal recorded at the outlet of the waveguide without the attenuators installed and with the attenuators in place. Construction steps of the demonstration kit are presented as well as the process of optimising the geometry of the resonator dampers and the difficulties of using 3D printing in the manufacturing processes of acoustic metamaterials are presented. The possibilities of using the demonstration set in the context of teaching, science communication and tackling acoustic noise pollution were also discussed. The broad possibilities for further development of the design, particularly the potential for use in prototyping new geometries of acoustic metamaterials were also addressed.