Abstract
This study proposes a novel approach to designing and fabricating a phononic crystal with embedded high-density resonators from 3D-printed magnesium alloy. The band structure and vibration suppression characteristics of the proposed structure are investigated using theoretical calculations and finite-element analysis. The bandgaps of the proposed phononic crystal are tuned using their superior structural design by changing the resonators. The effects of resonator mass on vibration suppression performance are also studied. The bandgap position and bandwidth are adjusted by changing the geometric parameters, broadening the application range. In addition, experiments are conducted to verify the bandgap accuracy. This study provides a new idea for constructing a 3D-printed magnesium alloy phononic crystal.
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