Fluid-fluid phononic crystal with elastic coat working in audible frequencies

• Autorzy: Klimek Aleksandra
• Języki publikacji: EN

Abstrakty

EN

Phononic Crystals are receiving rising attention in the field of modern acoustic materials. PCs are artificial structures of periodically arranged scatterers. Such a structure enables creating a band gap in which, due to the Bragg diffraction phenomenon, vibrations are restrained or even forbidden. In this paperwork, the fluid-fluid PC is tested and simulated - the scatterers are constructed of water cylinders with an ethylene propylene diene monomer coat (EPDM - a hyperelastic rubber) and are embedded in air. The band gap is calculated to emerge in the audible range of frequency. Every simulation is performed with the use of the finite element method.

Słowa kluczowe

EN

phononic crystals; band gap; Finite Element Method; viscoelasticity

PL

kryształ fononiczny; przerwa fotoniczna; metoda elementów skończonych; lepkosprężystość

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2019
• Tom: Vol. 30, nr 1
• Strony: art. no. 2019145
• Opis fizyczny: Bibliogr. 3 poz., rys., wykr.

Twórcy

autor

Klimek Aleksandra

• Wrocław University of Science and Technology, Wyspiańskiego 27, 50-370 Wrocław

Bibliografia

• 1. Y. Fei, W. Fang, M. Zhong, H. Kadou et al., Morphological Structure, Rheological Behavior, Mechanical Properties and Sound Insulation Performance of Thermoplastic Rubber Composites Reinforced by Different Inorganic Fillers, Polymers, 10(3) (2018) 276.
• 2. A. Khelif, A. Adibi, Phononic Crystals, Fundamentals and Applications, Springer, New York 2016.
• 3. P. A. Deymier, Acoustic Metamaterials and Phononic Crystals, Springer-Verlag Berlin Heidelberg, New York 2013.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).