Experimental Research on Wind-Induced Flag-Swing Piezoelectric Energy Harvesters
Piezoelectric cantilever beams, which have simple structures and excellent mechanical/electrical coupling characteristics, are widely applied in energy harvesting. When the piezoelectric cantilever beam is in a wind field, we should consider not only the influence of the wind field on piezoelectric...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/8496441 |
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| author | Jianjun Liu Xianghua Chen Yujie Chen Hong Zuo Qun Li |
| author_facet | Jianjun Liu Xianghua Chen Yujie Chen Hong Zuo Qun Li |
| author_sort | Jianjun Liu |
| collection | DOAJ |
| description | Piezoelectric cantilever beams, which have simple structures and excellent mechanical/electrical coupling characteristics, are widely applied in energy harvesting. When the piezoelectric cantilever beam is in a wind field, we should consider not only the influence of the wind field on piezoelectric beam but also the electromechanical coupling effect on it. In this paper, we design and test a wind-induced flag-swing piezoelectric energy harvester (PEH). The piezoelectric cantilever beam may vibrate in the wind field by affixing a flexible ribbon to the free end as the windward structure. To fulfill the goal of producing electricity, the flexible ribbon can swing the piezoelectric cantilever in a wind-induced unstable condition. The experimental findings demonstrate that the flag-swing PEH performs well in energy harvesting when the wind field is excited. When the wind speed is 15 m/s, the peak-to-peak output AC voltage may reach 13.88 V. In addition, the voltage at both ends of the closed-loop circuit’s external resistance is examined. The maximum electric power of the PEH may reach 43.4 μW with an external resistance of 650 kΩ. After passing through the AC-DC conversion circuit, the flag-swing PEH has a steady DC voltage output of 1.67 V. The proposed energy harvester transforms wind energy from a wind farm into electrical energy for supply to low-power electronic devices, allowing for the creation and use of green energy to efficiently address the issue of inadequate energy. |
| format | Article |
| id | doaj-art-01e95f4073c34e9c92fb964698c301f4 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-01e95f4073c34e9c92fb964698c301f42025-02-03T06:13:19ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/84964418496441Experimental Research on Wind-Induced Flag-Swing Piezoelectric Energy HarvestersJianjun Liu0Xianghua Chen1Yujie Chen2Hong Zuo3Qun Li4State Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Engineering, Xi’an Jiaotong University, Xi’an, ChinaState Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Engineering, Xi’an Jiaotong University, Xi’an, ChinaState Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Engineering, Xi’an Jiaotong University, Xi’an, ChinaState Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Engineering, Xi’an Jiaotong University, Xi’an, ChinaState Key Laboratory for Strength and Vibration of Mechanical Structures School of Aerospace Engineering, Xi’an Jiaotong University, Xi’an, ChinaPiezoelectric cantilever beams, which have simple structures and excellent mechanical/electrical coupling characteristics, are widely applied in energy harvesting. When the piezoelectric cantilever beam is in a wind field, we should consider not only the influence of the wind field on piezoelectric beam but also the electromechanical coupling effect on it. In this paper, we design and test a wind-induced flag-swing piezoelectric energy harvester (PEH). The piezoelectric cantilever beam may vibrate in the wind field by affixing a flexible ribbon to the free end as the windward structure. To fulfill the goal of producing electricity, the flexible ribbon can swing the piezoelectric cantilever in a wind-induced unstable condition. The experimental findings demonstrate that the flag-swing PEH performs well in energy harvesting when the wind field is excited. When the wind speed is 15 m/s, the peak-to-peak output AC voltage may reach 13.88 V. In addition, the voltage at both ends of the closed-loop circuit’s external resistance is examined. The maximum electric power of the PEH may reach 43.4 μW with an external resistance of 650 kΩ. After passing through the AC-DC conversion circuit, the flag-swing PEH has a steady DC voltage output of 1.67 V. The proposed energy harvester transforms wind energy from a wind farm into electrical energy for supply to low-power electronic devices, allowing for the creation and use of green energy to efficiently address the issue of inadequate energy.http://dx.doi.org/10.1155/2021/8496441 |
| spellingShingle | Jianjun Liu Xianghua Chen Yujie Chen Hong Zuo Qun Li Experimental Research on Wind-Induced Flag-Swing Piezoelectric Energy Harvesters Shock and Vibration |
| title | Experimental Research on Wind-Induced Flag-Swing Piezoelectric Energy Harvesters |
| title_full | Experimental Research on Wind-Induced Flag-Swing Piezoelectric Energy Harvesters |
| title_fullStr | Experimental Research on Wind-Induced Flag-Swing Piezoelectric Energy Harvesters |
| title_full_unstemmed | Experimental Research on Wind-Induced Flag-Swing Piezoelectric Energy Harvesters |
| title_short | Experimental Research on Wind-Induced Flag-Swing Piezoelectric Energy Harvesters |
| title_sort | experimental research on wind induced flag swing piezoelectric energy harvesters |
| url | http://dx.doi.org/10.1155/2021/8496441 |
| work_keys_str_mv | AT jianjunliu experimentalresearchonwindinducedflagswingpiezoelectricenergyharvesters AT xianghuachen experimentalresearchonwindinducedflagswingpiezoelectricenergyharvesters AT yujiechen experimentalresearchonwindinducedflagswingpiezoelectricenergyharvesters AT hongzuo experimentalresearchonwindinducedflagswingpiezoelectricenergyharvesters AT qunli experimentalresearchonwindinducedflagswingpiezoelectricenergyharvesters |