Research Article
A Broadband Vibration-Based Energy Harvester Using an Array of Piezoelectric Beams Connected by Springs
Table 1
Parameters of the bimorph beams.
| | Length of the beam, (mm) | 48.2 | | Width of the beam, (mm) | 10 | | Thickness of the substructure, (mm) | 0.19 | | Thickness of the PZT, (mm) | 0.24 | | Young’s modulus of the substructure, (GPa) | 40.4 | | Young’s modulus of the PZT, (GPa) | 55 | | Mass density of the substructure, (kg/m3) | 1519 | | Mass density of the PZT, (kg/m3) | 8140 | | Piezoelectric constant, (pm/V) | −180 | | Permittivity, (nF/m) | 13.28 | | Strain rate damping, (kgm4/s) | 1.16 × 10−6 | | Viscous air damping, (kg/s) | 0.4 |
|
|
