Multidirectional Piezoelectric Vibration Energy Harvester Based on Cam Rotor Mechanism
The techniques that harvest mechanical energy from low-frequency, multidirectional environmental vibrations have been considered a promising strategy to implement a sustainable power source for wireless sensor networks and the Internet of Things. However, the obvious inconsistency in the output volt...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/14/6/1159 |
| _version_ | 1827736383365578752 |
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| author | Xin Jiang Yan Liu Jiaming Wei Haotian Yang Bin Yin Hongbo Qin Weidong Wang |
| author_facet | Xin Jiang Yan Liu Jiaming Wei Haotian Yang Bin Yin Hongbo Qin Weidong Wang |
| author_sort | Xin Jiang |
| collection | DOAJ |
| description | The techniques that harvest mechanical energy from low-frequency, multidirectional environmental vibrations have been considered a promising strategy to implement a sustainable power source for wireless sensor networks and the Internet of Things. However, the obvious inconsistency in the output voltage and operating frequency among different directions may bring a hindrance to energy management. To address this issue, this paper reports a cam-rotor-based approach for a multidirectional piezoelectric vibration energy harvester. The cam rotor can transform vertical excitation into a reciprocating circular motion, producing a dynamic centrifugal acceleration to excite the piezoelectric beam. The same beam group is utilized when harvesting vertical and horizontal vibrations. Therefore, the proposed harvester reveals similar characterization in its resonant frequency and output voltage at different working directions. The structure design and modeling, device prototyping and experimental validation are conducted. The results show that the proposed harvester can produce a peak voltage of up to 42.4 V under a 0.2 g acceleration with a favorable power of 0.52 mW, and the resonant frequency for each operating direction is stable at around 3.7 Hz. Practical applications in lighting up LEDs and powering a WSN system demonstrate the promising potential of the proposed approach in capturing energy from ambient vibrations to construct self-powered engineering systems for structural health monitoring, environmental measuring, etc. |
| first_indexed | 2024-03-11T02:08:58Z |
| format | Article |
| id | doaj.art-1c5d5f6cc8ee49eb8b6a589c6768c75c |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-11T02:08:58Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-1c5d5f6cc8ee49eb8b6a589c6768c75c2023-11-18T11:39:13ZengMDPI AGMicromachines2072-666X2023-05-01146115910.3390/mi14061159Multidirectional Piezoelectric Vibration Energy Harvester Based on Cam Rotor MechanismXin Jiang0Yan Liu1Jiaming Wei2Haotian Yang3Bin Yin4Hongbo Qin5Weidong Wang6School of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaSchool of Mechano-Electronic Engineering, Xidian University, Xi’an 710071, ChinaThe techniques that harvest mechanical energy from low-frequency, multidirectional environmental vibrations have been considered a promising strategy to implement a sustainable power source for wireless sensor networks and the Internet of Things. However, the obvious inconsistency in the output voltage and operating frequency among different directions may bring a hindrance to energy management. To address this issue, this paper reports a cam-rotor-based approach for a multidirectional piezoelectric vibration energy harvester. The cam rotor can transform vertical excitation into a reciprocating circular motion, producing a dynamic centrifugal acceleration to excite the piezoelectric beam. The same beam group is utilized when harvesting vertical and horizontal vibrations. Therefore, the proposed harvester reveals similar characterization in its resonant frequency and output voltage at different working directions. The structure design and modeling, device prototyping and experimental validation are conducted. The results show that the proposed harvester can produce a peak voltage of up to 42.4 V under a 0.2 g acceleration with a favorable power of 0.52 mW, and the resonant frequency for each operating direction is stable at around 3.7 Hz. Practical applications in lighting up LEDs and powering a WSN system demonstrate the promising potential of the proposed approach in capturing energy from ambient vibrations to construct self-powered engineering systems for structural health monitoring, environmental measuring, etc.https://www.mdpi.com/2072-666X/14/6/1159piezoelectric vibration energy harvestermultidirectionalcam rotorwireless sensor network |
| spellingShingle | Xin Jiang Yan Liu Jiaming Wei Haotian Yang Bin Yin Hongbo Qin Weidong Wang Multidirectional Piezoelectric Vibration Energy Harvester Based on Cam Rotor Mechanism Micromachines piezoelectric vibration energy harvester multidirectional cam rotor wireless sensor network |
| title | Multidirectional Piezoelectric Vibration Energy Harvester Based on Cam Rotor Mechanism |
| title_full | Multidirectional Piezoelectric Vibration Energy Harvester Based on Cam Rotor Mechanism |
| title_fullStr | Multidirectional Piezoelectric Vibration Energy Harvester Based on Cam Rotor Mechanism |
| title_full_unstemmed | Multidirectional Piezoelectric Vibration Energy Harvester Based on Cam Rotor Mechanism |
| title_short | Multidirectional Piezoelectric Vibration Energy Harvester Based on Cam Rotor Mechanism |
| title_sort | multidirectional piezoelectric vibration energy harvester based on cam rotor mechanism |
| topic | piezoelectric vibration energy harvester multidirectional cam rotor wireless sensor network |
| url | https://www.mdpi.com/2072-666X/14/6/1159 |
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