Abstract
Purpose: An energy harvester of magnetic levitation is investigated under harmonic excitations. Methods: The governing equations of the harvester are derived according to the related laws of mechanics and electricity. The harmonic balance method is applied to evaluate the dynamic responses and energy harvesting performances. A parametric analysis is implemented to evaluate the effects of damping, electromagnetic parameters, and coupling coefficient. Results: The decrease of damping, coil length, and magnetic flux intensity improve energy harvesting and average power and broaden the bandwidth of the harvester. However, the displace amplitude response is decreased and the average power is increased with the increase of coupling coefficient. The numerical results also validate the theoretical predictions. Conclusions: Introducing the nonlinear magnetic force and optimizing the parameters can improve the effectiveness of energy harvesting. These results will assist the design of the energy harvester in the future.
| Original language | English |
|---|---|
| Pages (from-to) | 543-549 |
| Number of pages | 7 |
| Journal | Journal of Vibration Engineering and Technologies |
| Volume | 7 |
| Issue number | 6 |
| DOIs | |
| State | Published - 1 Dec 2019 |
| Externally published | Yes |
Keywords
- Electromagnetic
- Magnetic levitation
- Non-linearity
- System parameters
- Vibratory energy harvesting
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