Optimization of an Impact-Based Frequency Up-Converted Piezoelectric Vibration Energy Harvester for Wearable Devices
This work presents a novel development of the impact-based mechanism for piezoelectric vibration energy harvesters. More precisely, the effect of an impacting mass on a cantilever piezoelectric transducer is studied both in terms of the tip mass value attached to the cantilever and impact position t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/23/3/1391 |
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| author | Pietro Aceti Michele Rosso Raffaele Ardito Nicola Pienazza Alessandro Nastro Marco Baù Marco Ferrari Markku Rouvala Vittorio Ferrari Alberto Corigliano |
| author_facet | Pietro Aceti Michele Rosso Raffaele Ardito Nicola Pienazza Alessandro Nastro Marco Baù Marco Ferrari Markku Rouvala Vittorio Ferrari Alberto Corigliano |
| author_sort | Pietro Aceti |
| collection | DOAJ |
| description | This work presents a novel development of the impact-based mechanism for piezoelectric vibration energy harvesters. More precisely, the effect of an impacting mass on a cantilever piezoelectric transducer is studied both in terms of the tip mass value attached to the cantilever and impact position to find an optimal condition for power extraction. At first, the study is carried out by means of parametric analyses at varying tip mass and impact position on a unimorph MEMS cantilever, and a suitable physical interpretation of the associated electromechanical response is given. The effect of multiple impacts is also considered. From the analysis, it emerges that the most effective configuration, in terms of power output, is an impact at the cantilever tip without a tip mass. By changing the value of the tip mass, a sub-optimal impact position along the beam axis can also be identified. Moreover, the effect of a tip mass is deleterious on the power performance, contrary to the well-known case of a resonant energy harvester. A mesoscale prototype with a bimorph transducer is fabricated and tested to validate the computational models. The comparison shows a good agreement between numerical models and the experiments. The proposed approach is promising in the field of consumer electronics, such as wearable devices, in which the impact-based device moves at the frequencies of human movement and is much lower than those of microsystems. |
| first_indexed | 2024-03-11T09:25:25Z |
| format | Article |
| id | doaj.art-95b4e7271c7544848a0d51986eb73fdf |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-11T09:25:25Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-95b4e7271c7544848a0d51986eb73fdf2023-11-16T18:00:22ZengMDPI AGSensors1424-82202023-01-01233139110.3390/s23031391Optimization of an Impact-Based Frequency Up-Converted Piezoelectric Vibration Energy Harvester for Wearable DevicesPietro Aceti0Michele Rosso1Raffaele Ardito2Nicola Pienazza3Alessandro Nastro4Marco Baù5Marco Ferrari6Markku Rouvala7Vittorio Ferrari8Alberto Corigliano9Department of Civil and Environmental Engineering, Polytechnic of Milan, 20133 Milano, ItalyDepartment of Civil and Environmental Engineering, Polytechnic of Milan, 20133 Milano, ItalyDepartment of Civil and Environmental Engineering, Polytechnic of Milan, 20133 Milano, ItalyDepartment of Information Engineering, University of Brescia, 251121 Brescia, ItalyDepartment of Information Engineering, University of Brescia, 251121 Brescia, ItalyDepartment of Information Engineering, University of Brescia, 251121 Brescia, ItalyDepartment of Information Engineering, University of Brescia, 251121 Brescia, ItalyHuawei Technologies Oy, FI-0620 Helsinki, FinlandDepartment of Information Engineering, University of Brescia, 251121 Brescia, ItalyDepartment of Civil and Environmental Engineering, Polytechnic of Milan, 20133 Milano, ItalyThis work presents a novel development of the impact-based mechanism for piezoelectric vibration energy harvesters. More precisely, the effect of an impacting mass on a cantilever piezoelectric transducer is studied both in terms of the tip mass value attached to the cantilever and impact position to find an optimal condition for power extraction. At first, the study is carried out by means of parametric analyses at varying tip mass and impact position on a unimorph MEMS cantilever, and a suitable physical interpretation of the associated electromechanical response is given. The effect of multiple impacts is also considered. From the analysis, it emerges that the most effective configuration, in terms of power output, is an impact at the cantilever tip without a tip mass. By changing the value of the tip mass, a sub-optimal impact position along the beam axis can also be identified. Moreover, the effect of a tip mass is deleterious on the power performance, contrary to the well-known case of a resonant energy harvester. A mesoscale prototype with a bimorph transducer is fabricated and tested to validate the computational models. The comparison shows a good agreement between numerical models and the experiments. The proposed approach is promising in the field of consumer electronics, such as wearable devices, in which the impact-based device moves at the frequencies of human movement and is much lower than those of microsystems.https://www.mdpi.com/1424-8220/23/3/1391piezoelectric materialsenergy harvestingmechanical vibrationsimpactsmicrosystems |
| spellingShingle | Pietro Aceti Michele Rosso Raffaele Ardito Nicola Pienazza Alessandro Nastro Marco Baù Marco Ferrari Markku Rouvala Vittorio Ferrari Alberto Corigliano Optimization of an Impact-Based Frequency Up-Converted Piezoelectric Vibration Energy Harvester for Wearable Devices Sensors piezoelectric materials energy harvesting mechanical vibrations impacts microsystems |
| title | Optimization of an Impact-Based Frequency Up-Converted Piezoelectric Vibration Energy Harvester for Wearable Devices |
| title_full | Optimization of an Impact-Based Frequency Up-Converted Piezoelectric Vibration Energy Harvester for Wearable Devices |
| title_fullStr | Optimization of an Impact-Based Frequency Up-Converted Piezoelectric Vibration Energy Harvester for Wearable Devices |
| title_full_unstemmed | Optimization of an Impact-Based Frequency Up-Converted Piezoelectric Vibration Energy Harvester for Wearable Devices |
| title_short | Optimization of an Impact-Based Frequency Up-Converted Piezoelectric Vibration Energy Harvester for Wearable Devices |
| title_sort | optimization of an impact based frequency up converted piezoelectric vibration energy harvester for wearable devices |
| topic | piezoelectric materials energy harvesting mechanical vibrations impacts microsystems |
| url | https://www.mdpi.com/1424-8220/23/3/1391 |
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