Tunable filtering and demultiplexing in phononic crystals with hollow cylinders.

By Y. Pennec, Bahram Djafari-Rouhani, J. Vasseur, A. Khelif, P. Deymier. 2004

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How to See Hidden Patterns in Metamaterials with Interpretable Machine Learning (2021, background): “or stiffness [13, 15]) has been experimentally observed at different scales, which has prompted engineers to explore their use in different applications, ranging from materials for advanced batteries [62], to energy harvesting [12], seismic protection [7, 26, 46, 47], vibration or sound insulation [”
Architected Lattices for Simultaneous Broadband Attenuation of Airborne Sound and Mechanical Vibrations in All Directions (2018, background): “quency filtering [13,14], and wave guiding [15,16], among others [17].”
A Review of Tunable Acoustic Metamaterials (2018, background): “Properties of AMMs can be described with homogenized parameters, the effective mass density, and the effective modulus [76,77].”
Tailoring Structure‐Borne Sound through Bandgap Engineering in Phononic Crystals and Metamaterials: A Comprehensive Review (2022, background): “The latter then became a fundamental physical tool for engineering phononic platforms for wave control for a wide variety of applications including filtering, waveguiding [20,24,26,36–38], demultiplexing [181], optomechanics [132–153], and acoustic energy harvesting [154–162].”