An Electromagnetic Vibration Energy Harvester with a Tunable Mass Moment of Inertia
This paper presents a vibration-based electromagnetic energy harvester whose resonance frequency can be adjusted to match that of the excitation. Frequency adjustment is attained by controlling a rotatable arm, with tuning masses, at the tip of a cantilever-type energy harvester, thereby changing th...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-08-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/21/16/5611 |
| _version_ | 1797521980220506112 |
|---|---|
| author | Peter Ibrahim Mustafa Arafa Yasser Anis |
| author_facet | Peter Ibrahim Mustafa Arafa Yasser Anis |
| author_sort | Peter Ibrahim |
| collection | DOAJ |
| description | This paper presents a vibration-based electromagnetic energy harvester whose resonance frequency can be adjusted to match that of the excitation. Frequency adjustment is attained by controlling a rotatable arm, with tuning masses, at the tip of a cantilever-type energy harvester, thereby changing the effective mass moment of inertia of the system. The rotatable arm is mounted on a servomotor that is autonomously controlled through a microcontroller and a photo sensor to keep the device at resonance for maximum power generation. A mathematical model is developed to predict the system response for different design parameters and to estimate the generated power. The system is investigated analytically by a distributed-parameter model to study the natural frequency variation and dynamic response. The analytical model is verified experimentally where the frequency is tuned from 8 to 10.25 Hz. A parametric study is performed to study the effect of each parameter on the system behavior. |
| first_indexed | 2024-03-10T08:23:04Z |
| format | Article |
| id | doaj.art-08b507a9558a4a2fb004a6cc71d43269 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T08:23:04Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-08b507a9558a4a2fb004a6cc71d432692023-11-22T09:42:44ZengMDPI AGSensors1424-82202021-08-012116561110.3390/s21165611An Electromagnetic Vibration Energy Harvester with a Tunable Mass Moment of InertiaPeter Ibrahim0Mustafa Arafa1Yasser Anis2Mechanical Design and Production Department, Faculty of Engineering, Cairo University, Giza 12613, EgyptMechanical Engineering Department, American University in Cairo, New Cairo 11835, EgyptMechanical Design and Production Department, Faculty of Engineering, Cairo University, Giza 12613, EgyptThis paper presents a vibration-based electromagnetic energy harvester whose resonance frequency can be adjusted to match that of the excitation. Frequency adjustment is attained by controlling a rotatable arm, with tuning masses, at the tip of a cantilever-type energy harvester, thereby changing the effective mass moment of inertia of the system. The rotatable arm is mounted on a servomotor that is autonomously controlled through a microcontroller and a photo sensor to keep the device at resonance for maximum power generation. A mathematical model is developed to predict the system response for different design parameters and to estimate the generated power. The system is investigated analytically by a distributed-parameter model to study the natural frequency variation and dynamic response. The analytical model is verified experimentally where the frequency is tuned from 8 to 10.25 Hz. A parametric study is performed to study the effect of each parameter on the system behavior.https://www.mdpi.com/1424-8220/21/16/5611variable inertiaenergy harvestingfrequency tuningself-tuning |
| spellingShingle | Peter Ibrahim Mustafa Arafa Yasser Anis An Electromagnetic Vibration Energy Harvester with a Tunable Mass Moment of Inertia Sensors variable inertia energy harvesting frequency tuning self-tuning |
| title | An Electromagnetic Vibration Energy Harvester with a Tunable Mass Moment of Inertia |
| title_full | An Electromagnetic Vibration Energy Harvester with a Tunable Mass Moment of Inertia |
| title_fullStr | An Electromagnetic Vibration Energy Harvester with a Tunable Mass Moment of Inertia |
| title_full_unstemmed | An Electromagnetic Vibration Energy Harvester with a Tunable Mass Moment of Inertia |
| title_short | An Electromagnetic Vibration Energy Harvester with a Tunable Mass Moment of Inertia |
| title_sort | electromagnetic vibration energy harvester with a tunable mass moment of inertia |
| topic | variable inertia energy harvesting frequency tuning self-tuning |
| url | https://www.mdpi.com/1424-8220/21/16/5611 |
| work_keys_str_mv | AT peteribrahim anelectromagneticvibrationenergyharvesterwithatunablemassmomentofinertia AT mustafaarafa anelectromagneticvibrationenergyharvesterwithatunablemassmomentofinertia AT yasseranis anelectromagneticvibrationenergyharvesterwithatunablemassmomentofinertia AT peteribrahim electromagneticvibrationenergyharvesterwithatunablemassmomentofinertia AT mustafaarafa electromagneticvibrationenergyharvesterwithatunablemassmomentofinertia AT yasseranis electromagneticvibrationenergyharvesterwithatunablemassmomentofinertia |