Adaptive metamaterial resonators: a discrete and continuous mechanism
Abstract
Locally resonant metamaterials are an established route to lightweight attenuation of vibration and noise, but their performance is tied to a bandgap fixed at the design stage. In practice, excitation frequencies are rarely constant, as they can vary with operating conditions and loading, causing fixed-frequency resonators to lose effectiveness as conditions drift from their design point. Existing strategies to address this rely on active control, introducing sensors, actuators, and a continuous power supply, or on broadband and multi-resonator designs that trade attenuation depth for bandwidth. A passive alternative, capable of adapting its resonance characteristics directly within the operating environment, would remove this trade-off and open locally resonant metamaterials to a much wider range of real-world, time-varying applications. In this work, we present two adaptive resonator concepts that enable in-situ modification of local resonance characteristics through discrete and continuous adaptation mechanisms.
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BibTeX
@misc{cool2026adaptive,
title = {{Adaptive metamaterial resonators: a discrete and continuous mechanism}},
author = {Vanessa Cool and Elke Deckers and Frank Naets},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.34632},
eprint = {2609.34632},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.34632},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - Adaptive metamaterial resonators: a discrete and continuous mechanism
AU - Vanessa Cool
AU - Elke Deckers
AU - Frank Naets
PY - 2026
DA - 2026/09/28
PB - arXiv
DO - 10.48550/arxiv.2609.34632
UR - https://arxiv.org/abs/2609.34632
AB - Locally resonant metamaterials are an established route to lightweight attenuation of vibration and noise, but their performance is tied to a bandgap fixed at the design stage. In practice, excitation frequencies are rarely constant, as they can vary with operating conditions and loading, causing fixed-frequency resonators to lose effectiveness as conditions drift from their design point. Existing strategies to address this rely on active control, introducing sensors, actuators, and a continuous power supply, or on broadband and multi-resonator designs that trade attenuation depth for bandwidth. A passive alternative, capable of adapting its resonance characteristics directly within the operating environment, would remove this trade-off and open locally resonant metamaterials to a much wider range of real-world, time-varying applications. In this work, we present two adaptive resonator concepts that enable in-situ modification of local resonance characteristics through discrete and continuous adaptation mechanisms.
ER -