A Novel Bird-Shape Broadband Piezoelectric Energy Harvester for Low Frequency Vibrations
This work presents a novel bird-shaped broadband piezoelectric energy harvester based on a two-DOF crossed beam for low-frequency environmental vibrations. The harvester features a cantilever mounted on a double-hinged beam, whose rotating motions effectively diminish its natural frequencies. Numeri...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/14/2/421 |
| _version_ | 1827756335252373504 |
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| author | Han Yu Xiaofan Zhang Xiaobiao Shan Liangxing Hu Xingxu Zhang Chengwei Hou Tao Xie |
| author_facet | Han Yu Xiaofan Zhang Xiaobiao Shan Liangxing Hu Xingxu Zhang Chengwei Hou Tao Xie |
| author_sort | Han Yu |
| collection | DOAJ |
| description | This work presents a novel bird-shaped broadband piezoelectric energy harvester based on a two-DOF crossed beam for low-frequency environmental vibrations. The harvester features a cantilever mounted on a double-hinged beam, whose rotating motions effectively diminish its natural frequencies. Numerical simulation based on the finite element method is conducted to analyze the modal shapes and the harmonic response of the proposed harvester. Prototypes are fabricated and experiments are carried out by a testing system, whose results indicate a good agreement with the simulation. The multi-frequency energy harvesting is achieved at the first-, second-, and fifth-order resonances. In particular, the proposed harvester demonstrates the remarkable output characteristics of 9.53 mW and 1.83 mW at frequencies as low as 19.23 HZ and 45.38 Hz, which are superior to the majority of existing energy harvesters. Besides, the influences of key parameters on the harvesting performance are experimentally investigated to optimize the environmental adaptability of the harvester. This work provides a new perspective for efficiently harvesting the low-frequency vibration energy, which can be utilized for supplying power to electronic devices. |
| first_indexed | 2024-03-11T08:23:44Z |
| format | Article |
| id | doaj.art-0021810966264b79b57dd3fd22c5a751 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-11T08:23:44Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-0021810966264b79b57dd3fd22c5a7512023-11-16T22:12:01ZengMDPI AGMicromachines2072-666X2023-02-0114242110.3390/mi14020421A Novel Bird-Shape Broadband Piezoelectric Energy Harvester for Low Frequency VibrationsHan Yu0Xiaofan Zhang1Xiaobiao Shan2Liangxing Hu3Xingxu Zhang4Chengwei Hou5Tao Xie6State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, ChinaState Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, ChinaState Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, ChinaSchool of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798, SingaporeMinistry of Education Key Laboratory of Micro and Nano Systems for Aerospace, Northwestern Polytechnical University, Xi’an 710072, ChinaState Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, ChinaState Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, ChinaThis work presents a novel bird-shaped broadband piezoelectric energy harvester based on a two-DOF crossed beam for low-frequency environmental vibrations. The harvester features a cantilever mounted on a double-hinged beam, whose rotating motions effectively diminish its natural frequencies. Numerical simulation based on the finite element method is conducted to analyze the modal shapes and the harmonic response of the proposed harvester. Prototypes are fabricated and experiments are carried out by a testing system, whose results indicate a good agreement with the simulation. The multi-frequency energy harvesting is achieved at the first-, second-, and fifth-order resonances. In particular, the proposed harvester demonstrates the remarkable output characteristics of 9.53 mW and 1.83 mW at frequencies as low as 19.23 HZ and 45.38 Hz, which are superior to the majority of existing energy harvesters. Besides, the influences of key parameters on the harvesting performance are experimentally investigated to optimize the environmental adaptability of the harvester. This work provides a new perspective for efficiently harvesting the low-frequency vibration energy, which can be utilized for supplying power to electronic devices.https://www.mdpi.com/2072-666X/14/2/421energy harvesterlow frequencyrotating motionmultimode |
| spellingShingle | Han Yu Xiaofan Zhang Xiaobiao Shan Liangxing Hu Xingxu Zhang Chengwei Hou Tao Xie A Novel Bird-Shape Broadband Piezoelectric Energy Harvester for Low Frequency Vibrations Micromachines energy harvester low frequency rotating motion multimode |
| title | A Novel Bird-Shape Broadband Piezoelectric Energy Harvester for Low Frequency Vibrations |
| title_full | A Novel Bird-Shape Broadband Piezoelectric Energy Harvester for Low Frequency Vibrations |
| title_fullStr | A Novel Bird-Shape Broadband Piezoelectric Energy Harvester for Low Frequency Vibrations |
| title_full_unstemmed | A Novel Bird-Shape Broadband Piezoelectric Energy Harvester for Low Frequency Vibrations |
| title_short | A Novel Bird-Shape Broadband Piezoelectric Energy Harvester for Low Frequency Vibrations |
| title_sort | novel bird shape broadband piezoelectric energy harvester for low frequency vibrations |
| topic | energy harvester low frequency rotating motion multimode |
| url | https://www.mdpi.com/2072-666X/14/2/421 |
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