Modelling a Multi-Resonator Metamaterial for Vibration Isolation

Authors

Keywords:

metamaterial, local resonance, vibration isolation, finite element, modelling

Abstract

Locally resonant materials (LRMs) have emerged as a promising class of acoustic metamaterials for low-frequency vibration isolation (VI) applications due to their use of mass-spring type resonators with sub-wavelength geometries. Specifically, multi-resonator LRM geometries are being increasingly studied as a means of creating additional VI bands, but the design and optimization of such structures is complex due to the large number of interacting parameters. This paper presents an analytical model for predicting the resonance behaviour of a compact dual-resonator LRM and validates results using finite element (FE) models constructed in COMSOL Multiphysics®. The analytical model is successfully used to conduct parametric studies, which demonstrate its utility for tuning and optimizing LRM parameters during initial design.

Additional Files

Published

2026-09-18

How to Cite

1.
Krishnan V, Hacquebard L. Modelling a Multi-Resonator Metamaterial for Vibration Isolation. Canadian Acoustics [Internet]. 2026 Sep. 18 [cited 2026 Sep. 18];54(2). Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/4258

Issue

Vol. 54 No. 2 (2026): June 2026

Section

Proceedings of the Acoustics Week in Canada

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