Two-degree-of-freedom piezoelectric energy harvesting from vortex-induced vibration
In recent years, vortex-induced vibration (VIV) has been widely employed to collect small-scale wind energy as a renewable energy source for microelectronics and wireless sensors. In this paper, a two-degree-of-freedom (2DOF) VIV-based piezoelectric energy harvester (VIVPEH) was designed, and its ae...
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sg-ntu-dr.10356-1688052023-06-23T15:33:51Z Two-degree-of-freedom piezoelectric energy harvesting from vortex-induced vibration Lu, De Li, Zhiqing Hu, Guobiao Zhou, Bo Yang, Yaowen Zhang, Guiyong School of Civil and Environmental Engineering Engineering::Civil engineering Piezoelectric Vortex-Induced Vibration In recent years, vortex-induced vibration (VIV) has been widely employed to collect small-scale wind energy as a renewable energy source for microelectronics and wireless sensors. In this paper, a two-degree-of-freedom (2DOF) VIV-based piezoelectric energy harvester (VIVPEH) was designed, and its aerodynamic characteristics were thoroughly investigated. First, based on the traditional model theory and combined with the knowledge of vibration dynamics, the governing equations of the 2DOF VIVPEH were established. The dynamic responses, including the displacement and voltage output, were numerically simulated. Compared with the traditional 1DOF VIVPEH, the 2DOF VIVPEH proposed in this paper produced two lock-in regions for broadband wind energy harvesting. Furthermore, it was unveiled that the first- and second-order resonances were induced in the first and lock-in regions, respectively. Subsequently, a parametric study was conducted to investigate the influences of the circuit and mechanical parameters on the energy harvesting performance of the 2DOF VIVPEH. It was found that when the 2DOF VIVPEH was induced to vibrate in different lock-in regions, its optimal resistance became different. Moreover, by varying the masses and stiffnesses of the primary and secondary DOFs, we could adjust the lock-in regions in terms of their bandwidths, locations, and amplitudes, which provides a possibility for further customization and optimization. Published version This work was financially supported by the State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, China (GZ21114); National Natural Science Foundation of China (Grant No. 52071059, 52192692, 52061135107); and The Fundamental Research Funds for the Central Universities (No: DUT20TD108). 2023-06-19T07:39:37Z 2023-06-19T07:39:37Z 2022 Journal Article Lu, D., Li, Z., Hu, G., Zhou, B., Yang, Y. & Zhang, G. (2022). Two-degree-of-freedom piezoelectric energy harvesting from vortex-induced vibration. Micromachines, 13(11), 1936-. https://dx.doi.org/10.3390/mi13111936 2072-666X https://hdl.handle.net/10356/168805 10.3390/mi13111936 36363957 2-s2.0-85146799805 11 13 1936 en Micromachines © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). application/pdf |
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Engineering::Civil engineering Piezoelectric Vortex-Induced Vibration Lu, De Li, Zhiqing Hu, Guobiao Zhou, Bo Yang, Yaowen Zhang, Guiyong Two-degree-of-freedom piezoelectric energy harvesting from vortex-induced vibration |
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In recent years, vortex-induced vibration (VIV) has been widely employed to collect small-scale wind energy as a renewable energy source for microelectronics and wireless sensors. In this paper, a two-degree-of-freedom (2DOF) VIV-based piezoelectric energy harvester (VIVPEH) was designed, and its aerodynamic characteristics were thoroughly investigated. First, based on the traditional model theory and combined with the knowledge of vibration dynamics, the governing equations of the 2DOF VIVPEH were established. The dynamic responses, including the displacement and voltage output, were numerically simulated. Compared with the traditional 1DOF VIVPEH, the 2DOF VIVPEH proposed in this paper produced two lock-in regions for broadband wind energy harvesting. Furthermore, it was unveiled that the first- and second-order resonances were induced in the first and lock-in regions, respectively. Subsequently, a parametric study was conducted to investigate the influences of the circuit and mechanical parameters on the energy harvesting performance of the 2DOF VIVPEH. It was found that when the 2DOF VIVPEH was induced to vibrate in different lock-in regions, its optimal resistance became different. Moreover, by varying the masses and stiffnesses of the primary and secondary DOFs, we could adjust the lock-in regions in terms of their bandwidths, locations, and amplitudes, which provides a possibility for further customization and optimization. |
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School of Civil and Environmental Engineering |
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School of Civil and Environmental Engineering Lu, De Li, Zhiqing Hu, Guobiao Zhou, Bo Yang, Yaowen Zhang, Guiyong |
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Article |
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Lu, De Li, Zhiqing Hu, Guobiao Zhou, Bo Yang, Yaowen Zhang, Guiyong |
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Lu, De |
title |
Two-degree-of-freedom piezoelectric energy harvesting from vortex-induced vibration |
title_short |
Two-degree-of-freedom piezoelectric energy harvesting from vortex-induced vibration |
title_full |
Two-degree-of-freedom piezoelectric energy harvesting from vortex-induced vibration |
title_fullStr |
Two-degree-of-freedom piezoelectric energy harvesting from vortex-induced vibration |
title_full_unstemmed |
Two-degree-of-freedom piezoelectric energy harvesting from vortex-induced vibration |
title_sort |
two-degree-of-freedom piezoelectric energy harvesting from vortex-induced vibration |
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2023 |
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https://hdl.handle.net/10356/168805 |
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1772828630207954944 |