Electromagnetic vibrational energy harvester with targeted frequency-tuning capability based on magnetic levitation
This article presents a compact magnetic levitation energy harvester (MLEH) with tunable resonant frequency. Unlike many of the reported tunable harvesters with unknown tuning results, the proposed MLEH can be tuned toward designated resonant frequency values within its tuning range. The targeted tu...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2024-12-01
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| Series: | Nanotechnology and Precision Engineering |
| Online Access: | http://dx.doi.org/10.1063/10.0025788 |
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| author | Chengbo Hu Xinyi Wang Zhifei Wang Shudong Wang Yuanyuan Liu Yunjia Li |
| author_facet | Chengbo Hu Xinyi Wang Zhifei Wang Shudong Wang Yuanyuan Liu Yunjia Li |
| author_sort | Chengbo Hu |
| collection | DOAJ |
| description | This article presents a compact magnetic levitation energy harvester (MLEH) with tunable resonant frequency. Unlike many of the reported tunable harvesters with unknown tuning results, the proposed MLEH can be tuned toward designated resonant frequency values within its tuning range. The targeted tuning processes is realized by a nonlinear magnet repulsive force exerted on a Halbach magnet array, combined with a calibrated scaling system. At a sinusoidal acceleration of ±0.15 g, the maximum frequency tuning range of the proposed MLEH is 6.3 Hz (8.1–14.4 Hz), which is 77.8% of its resonant MLEH (8.1 Hz). At a frequency of 9.7 Hz, the output power is 462.1 μW and the calculated normalized power density is 496 μW cm−3 g−2. |
| format | Article |
| id | doaj-art-8c902c6d375343bdbae04fac7a6d2c6b |
| institution | Kabale University |
| issn | 2589-5540 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | Nanotechnology and Precision Engineering |
| spelling | doaj-art-8c902c6d375343bdbae04fac7a6d2c6b2024-12-04T17:11:46ZengAIP Publishing LLCNanotechnology and Precision Engineering2589-55402024-12-0174043003043003-1110.1063/10.0025788Electromagnetic vibrational energy harvester with targeted frequency-tuning capability based on magnetic levitationChengbo Hu0Xinyi Wang1Zhifei Wang2Shudong Wang3Yuanyuan Liu4Yunjia Li5School of Electrical Engineering, Southeast University, Nanjing 210096, ChinaSchool of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaSchool of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaXi’an Institute of Space Radio Technology, Xi’an 710100, ChinaSchool of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaThis article presents a compact magnetic levitation energy harvester (MLEH) with tunable resonant frequency. Unlike many of the reported tunable harvesters with unknown tuning results, the proposed MLEH can be tuned toward designated resonant frequency values within its tuning range. The targeted tuning processes is realized by a nonlinear magnet repulsive force exerted on a Halbach magnet array, combined with a calibrated scaling system. At a sinusoidal acceleration of ±0.15 g, the maximum frequency tuning range of the proposed MLEH is 6.3 Hz (8.1–14.4 Hz), which is 77.8% of its resonant MLEH (8.1 Hz). At a frequency of 9.7 Hz, the output power is 462.1 μW and the calculated normalized power density is 496 μW cm−3 g−2.http://dx.doi.org/10.1063/10.0025788 |
| spellingShingle | Chengbo Hu Xinyi Wang Zhifei Wang Shudong Wang Yuanyuan Liu Yunjia Li Electromagnetic vibrational energy harvester with targeted frequency-tuning capability based on magnetic levitation Nanotechnology and Precision Engineering |
| title | Electromagnetic vibrational energy harvester with targeted frequency-tuning capability based on magnetic levitation |
| title_full | Electromagnetic vibrational energy harvester with targeted frequency-tuning capability based on magnetic levitation |
| title_fullStr | Electromagnetic vibrational energy harvester with targeted frequency-tuning capability based on magnetic levitation |
| title_full_unstemmed | Electromagnetic vibrational energy harvester with targeted frequency-tuning capability based on magnetic levitation |
| title_short | Electromagnetic vibrational energy harvester with targeted frequency-tuning capability based on magnetic levitation |
| title_sort | electromagnetic vibrational energy harvester with targeted frequency tuning capability based on magnetic levitation |
| url | http://dx.doi.org/10.1063/10.0025788 |
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