Mathematical Modeling of an Active-Fiber Composite Energy Harvester with Interdigitated Electrodes
The use of active-fiber composites (AFC) instead of traditional ceramic piezoelectric materials is motivated by flexibility and relatively high actuation capacity. Nevertheless, their energy harvesting capabilities remain low. As a first step toward the enhancement of AFC’s performances, a mathemati...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/971597 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849693435018084352 |
|---|---|
| author | A. Jemai F. Najar M. Chafra Z. Ounaies |
| author_facet | A. Jemai F. Najar M. Chafra Z. Ounaies |
| author_sort | A. Jemai |
| collection | DOAJ |
| description | The use of active-fiber composites (AFC) instead of traditional ceramic piezoelectric materials is motivated by flexibility and relatively high actuation capacity. Nevertheless, their energy harvesting capabilities remain low. As a first step toward the enhancement of AFC’s performances, a mathematical model that accurately simulates the dynamic behavior of the AFC is proposed. In fact, most of the modeling approaches found in the literature for AFC are based on finite element methods. In this work, we use homogenization techniques to mathematically describe piezoelectric properties taking into consideration the composite structure of the AFC. We model the interdigitated electrodes as a series of capacitances and current sources linked in parallel; then we integrate these properties into the structural model of the AFC. The proposed model is incorporated into a vibration based energy harvesting system consisting of a cantilever beam on top of which an AFC patch is attached. Finally, analytical solutions of the dynamic behavior and the harvested voltage are proposed and validated with finite element simulations. |
| format | Article |
| id | doaj-art-2d7ed2adbbe6474f8663b062202d0984 |
| institution | DOAJ |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-2d7ed2adbbe6474f8663b062202d09842025-08-20T03:20:25ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/971597971597Mathematical Modeling of an Active-Fiber Composite Energy Harvester with Interdigitated ElectrodesA. Jemai0F. Najar1M. Chafra2Z. Ounaies3Applied Mechanics and Systems Research Laboratory, Tunisia Polytechnic School, University of Carthage, BP 743, 2078 La Marsa, TunisiaApplied Mechanics and Systems Research Laboratory, Tunisia Polytechnic School, University of Carthage, BP 743, 2078 La Marsa, TunisiaApplied Mechanics and Systems Research Laboratory, Tunisia Polytechnic School, University of Carthage, BP 743, 2078 La Marsa, TunisiaDepartment of Mechanical and Nuclear Engineering, The Pennsylvania State University, 157B Hammond Building, University Park, PA 16802, USAThe use of active-fiber composites (AFC) instead of traditional ceramic piezoelectric materials is motivated by flexibility and relatively high actuation capacity. Nevertheless, their energy harvesting capabilities remain low. As a first step toward the enhancement of AFC’s performances, a mathematical model that accurately simulates the dynamic behavior of the AFC is proposed. In fact, most of the modeling approaches found in the literature for AFC are based on finite element methods. In this work, we use homogenization techniques to mathematically describe piezoelectric properties taking into consideration the composite structure of the AFC. We model the interdigitated electrodes as a series of capacitances and current sources linked in parallel; then we integrate these properties into the structural model of the AFC. The proposed model is incorporated into a vibration based energy harvesting system consisting of a cantilever beam on top of which an AFC patch is attached. Finally, analytical solutions of the dynamic behavior and the harvested voltage are proposed and validated with finite element simulations.http://dx.doi.org/10.1155/2014/971597 |
| spellingShingle | A. Jemai F. Najar M. Chafra Z. Ounaies Mathematical Modeling of an Active-Fiber Composite Energy Harvester with Interdigitated Electrodes Shock and Vibration |
| title | Mathematical Modeling of an Active-Fiber Composite Energy Harvester with Interdigitated Electrodes |
| title_full | Mathematical Modeling of an Active-Fiber Composite Energy Harvester with Interdigitated Electrodes |
| title_fullStr | Mathematical Modeling of an Active-Fiber Composite Energy Harvester with Interdigitated Electrodes |
| title_full_unstemmed | Mathematical Modeling of an Active-Fiber Composite Energy Harvester with Interdigitated Electrodes |
| title_short | Mathematical Modeling of an Active-Fiber Composite Energy Harvester with Interdigitated Electrodes |
| title_sort | mathematical modeling of an active fiber composite energy harvester with interdigitated electrodes |
| url | http://dx.doi.org/10.1155/2014/971597 |
| work_keys_str_mv | AT ajemai mathematicalmodelingofanactivefibercompositeenergyharvesterwithinterdigitatedelectrodes AT fnajar mathematicalmodelingofanactivefibercompositeenergyharvesterwithinterdigitatedelectrodes AT mchafra mathematicalmodelingofanactivefibercompositeenergyharvesterwithinterdigitatedelectrodes AT zounaies mathematicalmodelingofanactivefibercompositeenergyharvesterwithinterdigitatedelectrodes |