Experimental Study on Multi-Directional Hybrid Energy Harvesting of a Two-Degree-of-Freedom Cantilever Beam
Based on the research of the directional self-adaptive piezoelectric energy harvester (DSPEH), a structural design scheme of a multi-directional hybrid energy harvester (MHEH) is put forward. The working principle of the MHEH is experimentally studied. A prototype is designed and manufactured, and t...
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MDPI AG
2025-06-01
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| Online Access: | https://www.mdpi.com/1424-8220/25/13/4033 |
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| author | Minglei Han Zhiqi Xing Shuangbin Liu Xu Yang |
| author_facet | Minglei Han Zhiqi Xing Shuangbin Liu Xu Yang |
| author_sort | Minglei Han |
| collection | DOAJ |
| description | Based on the research of the directional self-adaptive piezoelectric energy harvester (DSPEH), a structural design scheme of a multi-directional hybrid energy harvester (MHEH) is put forward. The working principle of the MHEH is experimentally studied. A prototype is designed and manufactured, and the output characteristics of the MHEH in vibrational degree of freedom (DOF) and rotational DOF are experimentally studied. Compared with the DSPEH, after adding the electromagnetic energy harvesting module, the MHEH effectively uses the rotational energy in the rotational DOF, achieves simultaneous energy harvesting from one excitation through two mechanisms, and the output power of the electromagnetic module reaches 61 μW. The total power of the system is increased by 10 times, the power density is increased by 500%, and the MHEH has high voltage output characteristics in multiple directions. Compared with traditional multi-directional and self-adaptive energy harvesters, the MHEH utilizes a reverse-thinking method to generate continuous rotational motion of the cantilever beam, thus eliminating the influence of external excitation direction on the normal vibration of the cantilever beam. In addition, the MHEH has achieved hybrid energy harvesting with a single cantilever beam and multiple mechanisms, providing new ideas for multi-directional energy harvesting. |
| format | Article |
| id | doaj-art-7b4539c631d0408a9b7dbf4e8e21039f |
| institution | DOAJ |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
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| series | Sensors |
| spelling | doaj-art-7b4539c631d0408a9b7dbf4e8e21039f2025-08-20T03:16:50ZengMDPI AGSensors1424-82202025-06-012513403310.3390/s25134033Experimental Study on Multi-Directional Hybrid Energy Harvesting of a Two-Degree-of-Freedom Cantilever BeamMinglei Han0Zhiqi Xing1Shuangbin Liu2Xu Yang3School of Mechanical and Vehicle Engineering, Changchun University, Changchun 130022, ChinaSchool of Mechanical and Vehicle Engineering, Changchun University, Changchun 130022, ChinaSchool of Mechanical and Vehicle Engineering, Changchun University, Changchun 130022, ChinaKey Laboratory of CNC Equipment Reliability, Ministry of Education, School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, ChinaBased on the research of the directional self-adaptive piezoelectric energy harvester (DSPEH), a structural design scheme of a multi-directional hybrid energy harvester (MHEH) is put forward. The working principle of the MHEH is experimentally studied. A prototype is designed and manufactured, and the output characteristics of the MHEH in vibrational degree of freedom (DOF) and rotational DOF are experimentally studied. Compared with the DSPEH, after adding the electromagnetic energy harvesting module, the MHEH effectively uses the rotational energy in the rotational DOF, achieves simultaneous energy harvesting from one excitation through two mechanisms, and the output power of the electromagnetic module reaches 61 μW. The total power of the system is increased by 10 times, the power density is increased by 500%, and the MHEH has high voltage output characteristics in multiple directions. Compared with traditional multi-directional and self-adaptive energy harvesters, the MHEH utilizes a reverse-thinking method to generate continuous rotational motion of the cantilever beam, thus eliminating the influence of external excitation direction on the normal vibration of the cantilever beam. In addition, the MHEH has achieved hybrid energy harvesting with a single cantilever beam and multiple mechanisms, providing new ideas for multi-directional energy harvesting.https://www.mdpi.com/1424-8220/25/13/4033hybrid energy harvestingtwo-degree-of-freedom cantilever beammulti-directional vibrationselectromagnetic energy harvesterpiezoelectric energy harvester |
| spellingShingle | Minglei Han Zhiqi Xing Shuangbin Liu Xu Yang Experimental Study on Multi-Directional Hybrid Energy Harvesting of a Two-Degree-of-Freedom Cantilever Beam Sensors hybrid energy harvesting two-degree-of-freedom cantilever beam multi-directional vibrations electromagnetic energy harvester piezoelectric energy harvester |
| title | Experimental Study on Multi-Directional Hybrid Energy Harvesting of a Two-Degree-of-Freedom Cantilever Beam |
| title_full | Experimental Study on Multi-Directional Hybrid Energy Harvesting of a Two-Degree-of-Freedom Cantilever Beam |
| title_fullStr | Experimental Study on Multi-Directional Hybrid Energy Harvesting of a Two-Degree-of-Freedom Cantilever Beam |
| title_full_unstemmed | Experimental Study on Multi-Directional Hybrid Energy Harvesting of a Two-Degree-of-Freedom Cantilever Beam |
| title_short | Experimental Study on Multi-Directional Hybrid Energy Harvesting of a Two-Degree-of-Freedom Cantilever Beam |
| title_sort | experimental study on multi directional hybrid energy harvesting of a two degree of freedom cantilever beam |
| topic | hybrid energy harvesting two-degree-of-freedom cantilever beam multi-directional vibrations electromagnetic energy harvester piezoelectric energy harvester |
| url | https://www.mdpi.com/1424-8220/25/13/4033 |
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