Author:

Keywords:

ACOUTECT, IOF, PDmandaat_Elke, FM_affiliated, Science & Technology, Technology, Engineering, Mechanical, Engineering, Archimedean spiral cavities, Metasurfaces, Acoustic absorption, PANEL, Acoutect - 721536;info:eu-repo/grantAgreement/EC/H2020/721536, 0905 Civil Engineering, 0913 Mechanical Engineering, 0915 Interdisciplinary Engineering, Acoustics, 4006 Communications engineering, 4017 Mechanical engineering

Abstract:

This work presents the design, optimization and combination of fully pa- rameterized Archimedean spiral cavities (ASCs) as acoustic resonators, in order to achieve perfect absorption at frequencies below 1000 Hz while using a completely modular design. The assembly of two ASCs in the same system is also presented. An optimization is performed and results are verified through Finite Element Analysis (FEA) and validated experimentally for almost perfect absorption peaks at 700 Hz and 800 Hz. A good agreement is achieved between theory, simulation and experiments.