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Piezoelectric energy harvesting based on macro fiber composite from a rotating shaft
| Content Provider | Scilit |
|---|---|
| Author | Grzybek, Dariusz Micek, Piotr |
| Copyright Year | 2019 |
| Description | Journal: Physica Scripta Piezoelectric energy harvesting from rotating applications can be realized by the use of harvesters whose the basic part is a piezoelectric material. Such harvesters have various structures but most of them contain a cantilever composite beam which consists of the carrying material and the piezoelectric material. A diversification of the harvester structures is, above all, a result of an application of additional mechanical structures which task is to deform the cantilever composite beam. In contrast to these approaches, the article presents the simulation and laboratory investigation on the piezoelectric energy harvesting from a rotating shaft without use of any additional mechanical structure. The energy harvesting was realized by the use of Macro Fiber Composite (MFC) which was directly glued on the rotating shaft surface, instead of on a cantilever beam being a part of the additional mechanical structure. In the theoretical part of the article, a mathematical model of piezoelectric energy harvesting from rotating shaft with the use of MFC was elaborated. This model was verified on the basis of the laboratory experiments. On the basis of simulation and laboratory experiments it was found that both an increase of the rotation frequency of shaft and an increase of the stress in a rotating shaft caused linear increase of voltage generated by MFC and caused exponential increase of power generated by MFC. These characteristics are significantly different than the characteristics obtained for harvesters consisting on a cantilever beam, in which the maximal value of a voltage and a power is generated only for a resonant frequency of cantilever beam. In spite of these differences the optimal load resistance for specific rotation frequency of shaft can be calculate from formula used to calculation of optimal load resistance for harvester based on a cantilever beam. |
| Related Links | https://iopscience.iop.org/article/10.1088/1402-4896/ab0d49/pdf |
| ISSN | 00318949 |
| e-ISSN | 14024896 |
| DOI | 10.1088/1402-4896/ab0d49 |
| Journal | Physica Scripta |
| Issue Number | 9 |
| Volume Number | 94 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2019-03-06 |
| Access Restriction | Open |
| Subject Keyword | Journal: Physica Scripta Composite Materials Rotating Shaft Energy Harvesting Macro Fiber Composite Simulation and Laboratory |
| Content Type | Text |
| Resource Type | Article |
| Subject | Atomic and Molecular Physics, and Optics Mathematical Physics Condensed Matter Physics |
