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A biphasic metamaterial with simultaneous insulation of vibration and noise
A fluid-solid biphasic 3D printable mechanical metamaterial can be capable of simultaneous insulation of elastic and acoustic waves, which is essential for efficient sound and vibration isolation solutions. The structural design of biphasic periodic material is inspired by the triply periodic minimal surface lattice, which is suited to maintain the two phases separated from each other. To analyze the performance of metamaterials, dispersion relationships need to be calculated. Finite element models and optimization algorithms are applied to look for the largest realizable frequency stopband.
Meng Wang, Marco Lepidi
Meng Wang is currently a PhD candidate in Sapienza University of Rome from 2022, at the Department of Astronautics, Electrical and Energy Engineering. He got his bachelor degree at Tongji University in Shanghai, China. His research interests include mechanical metamaterials, ultrasonic structural health monitoring and nonlinear guided wave. He investigated a biphasic metamaterial solution which realize simultaneous opening of elastic and acoustic bandgaps. He has co-authored 2 papers in international conferences and 2 national papers in Chinese major journal and conference.
