Abstract
Piezoelectric energy harvesters can realize conversion from mechanical energy to electric energy and power the electronic devices. In this work, based on the electro-elastic model of piezoelectric composites, considering the influence of external load on the piezoelectric coupling, a mathematical model for calculating the energy output of the piezoelectric energy harvesters is established through the coupled equations of elastic and electric fields, Kirchhoff's Circuit Law and the law of charge conservation. Barium Titanate/polydimethylsiloxane (BTO/PDMS) composites were fabricated by extrusion 3D printing. In addition to the conventional extrusion in air, a new water bath extrusion approach was also used to prove its feasibility in preparing piezoelectric composites. The results show that water bath extrusion has advantages in maintaining the shape of the structure. Moreover, the piezoelectric properties were evaluated by falling ball impact tests. The peak-to-peak value of the pulse produced by the energy harvester extruded in air and water bath were 1.74 V and 3.31V, respectively. The energy harvesters extruded in water bath achieved 1.9 times of output voltage of that extruded in air.
Original language | English |
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Title of host publication | 2022 27th International Conference on Automation and Computing (ICAC) |
Editors | Chenguang Yang, Yuchun Xu |
Place of Publication | Piscataway, NJ |
Publisher | IEEE |
Pages | 1-6 |
Number of pages | 6 |
ISBN (Electronic) | 9781665498074 |
ISBN (Print) | 9781665498081 |
DOIs | |
Publication status | Published - 10 Oct 2022 |
Event | The 27th IEEE International Conference on Automation and Computing - University of the West of England, Bristol, United Kingdom Duration: 1 Sept 2022 → 3 Sept 2022 Conference number: 27 http://www.cacsuk.co.uk/index.php/icac2022 |
Publication series
Name | 2022 27th International Conference on Automation and Computing: Smart Systems and Manufacturing, ICAC 2022 |
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Conference
Conference | The 27th IEEE International Conference on Automation and Computing |
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Abbreviated title | ICAC 2022 |
Country/Territory | United Kingdom |
City | Bristol |
Period | 1/09/22 → 3/09/22 |
Internet address |
Keywords
- piezoelectric composite energy harvester
- mathematical model
- extrusion 3D printing
- water bath