Abstract
In this study, a cantilevered energy harvester comprising piezoelectric fiber and epoxy composites was designed and analyzed electro-mechanically. In order to maximize the power of the cantilevered energy harvester, its exciting frequency was tuned to the first natural frequency of the beam. An efficient analysis method for predicting the output voltage of the beam was developed by using the finite element method coupled with piezoelectric behavior. By using this method, the effects of geometric parameters and various piezoelectric materials on power generation were investigated and the electric characteristics were evaluated. Design optimization of the beam geometries was performed for a base model. The optimum MFC design generated a maximum electric output of 40.1 V at a first natural frequency of 24.5 Hz.
| Original language | English |
|---|---|
| Pages (from-to) | 805-812 |
| Number of pages | 8 |
| Journal | Transactions of the Korean Society of Mechanical Engineers, A |
| Volume | 35 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 2011 |
Keywords
- Cantilevered beam
- Energy harvester
- Piezoelectric fiber
- Voltage