| Title |
Output Characteristics of a Disk-Type Piezoelectric Energy Harvester with Respect to Geometric Aspect Ratio |
| Authors |
임성현(Sung-Hyun Lim) ; 이수호(Su-Ho Lee) ; 나준영(Jun-Young Na) ; 황재은(Jae-Eun Hwang) ; 유재성(Jae-Sung Yoo) ; 박혜리(Herie Park) |
| DOI |
https://doi.org/10.5370/KIEE.2026.75.6.1291 |
| Keywords |
COMSOL Multiphysics; Piezoelectric energy harvester; Thickness mode; Active power |
| Abstract |
This study analyzes piezoelectric devices operating in the thickness vibration mode by examining models with various diameter-to-thickness ratios. Theoretical calculations and COMSOL finite element simulations, and experimental measurements were conducted using Pb(Ni1/3Nb2/3)O3-Pb(Zr Ti)O3-based ceramic materials. The results demonstrate that the resonance and anti-resonance frequencies generally decrease as the diameter-to-thickness ratio increases. The close agreement between experimental measurements and simulation results validates the reliability of the simulation approach. |