A Metamaterial-Inspired Structure for Simultaneous Vibration Attenuation and Energy Harvesting

Figure 7

Dispersion curve and frequency bandgaps of a metamaterial structure consisting of cantilever beams with tip coils and central magnet obtained using COMSOL simulations. Frequency bandgaps: the first and second bandgaps are 218–247 Hz and 589–780 Hz, respectively (marked in gray).