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Project

Vibro-acoustic Resonant Metamaterials: from Concept to Engineering Solution

In recent decades, resonant metamaterials have attracted attention as a novel lightweight noise and vibration insulation solution for the hard-to-address low-frequency region, albeit in well-defined frequency ranges called stop bands. These stop bands are frequency regions without free wave propagation, in which high noise and vibration insulation is obtained. They are created by a Fano-type interference, which arises due to the addition of resonators on a sub-wavelength scale onto a host structure. Despite vast amount of research on the subject, few have tried to leverage this potential solution to industrial reality. In this thesis, resonant metamaterials are approached from an engineering point of view, by exploring cheap manufacturing and integration processes for the resonators and by facilitating their design. Three types of commonly encountered structures in noise and vibration problems are explored: waveguides, single panels, and double panels. In all these applications, resonant metamaterials are exploited to solve classical noise and vibration insulation problems using a simple design and practical manufacturing and integration processes. Therefore, this thesis brings resonant metamaterials closer to becoming feasible noise and vibration engineering solutions.  

Date:13 Jan 2015 →  19 Oct 2020
Keywords:Resonant metamaterials
Disciplines:Control systems, robotics and automation, Design theories and methods, Mechatronics and robotics, Computer theory
Project type:PhD project