Research on piezoelectric vibration energy harvester with variable section circular beam

Ma, Tianxing; Ding, Yongjing; Wei, Xiaodong; Chen, Nannan; Yin, Menghan

doi:10.1177/1461348420918408

Cited by 21 publications

(8 citation statements)

References 26 publications

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“…Energy harvesters can be used to harness wasted energy and byproduct energy in the environment and convert it into useful electrical energy to power wireless sensing devices [1,2]. Due to the wide availability of vibration energy in various environments, a number of mechanical mechanisms have been exploited to capture vibration energy, including piezoelectric [3][4][5], electromagnetic [6][7][8], electrostatic [9][10][11] and triboelectric electrical [12,13] approaches.…”

Section: Introductionmentioning

confidence: 99%

A novel two degree of freedom single magnet bistable energy harvester based on internal resonance

Huang¹,

Chen²,

Lin³

et al. 2022

Smart Mater. Struct.

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Up to now, many nonlinear techniques such as bistable structure have been used to harvest vibration energy from the environment to achieve a wide response bandwidth. However, most bistable harvesters require two opposing magnets to form the potential energy function, which limits the miniaturization of the harvesters. In this paper, a two-degree-of-freedom U-shaped single magnet bistable energy harvester (SMBEH) based on the internal resonance technique is proposed. The harvester consists of a U-shaped beam, a magnet and a tip mass. The governing equations of the system are derived and the output performance of the harvester is obtained through numerical simulation and experiments which are in good agreement. The proposed SMBEH can achieve a wide band and large amplitude output due to the 1:2 internal resonance and bistable characteristic. When the excitation amplitude is equal to 0.4g, the SMBEH can produce significant output in two frequency ranges from 7Hz to 7.7Hz and 11.7Hz to 15.73Hz. In the end, the output performance of SMBEH at different resistances and the charging performance were verified, respectively.

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Section: Introductionmentioning

confidence: 99%

A novel two degree of freedom single magnet bistable energy harvester based on internal resonance

Huang¹,

Chen²,

Lin³

et al. 2022

Smart Mater. Struct.

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“…By changing the cross-sectional shape of the piezoelectric energy trap, Tan et al and Shan et al reduced the intrinsic frequency of the piezoelectric energy trap so that the piezoelectric energy trap could achieve high power generation at a lower excitation frequency [11,12]. Ma et al designed a variable cross-sectional circular piezoelectric energy trap that could reduce the intrinsic frequency of the piezoelectric cantilever beam [13]. Jia and Seshia investigated the linear piezoelectric cantilever beam both numerically and experimentally and explored the power maximisation of the ratio of mass to cantilever length [14].…”

Section: Introductionmentioning

confidence: 99%

Study of the Effect of the Segmentation Method on the Power Generation Performance of Rectangular Piezoelectric Energy Harvester

et al. 2022

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Since the piezoelectric energy harvester will generate strain zero point when it is bent, it will affect the power generation effect. In this paper, the strain zero point of the cantilever beam of the rectangular piezoelectric energy harvester is studied through theoretical analysis. The main analysis is the specific location of the strain zero point in the first-, second-, and third-order modes of the cantilever beam of the energy capturer. The results of the theoretical analysis are verified by experimenting with different segmentation methods of piezoelectric energy harvesters. The experimental results show that the piezoelectric energy harvester is segmented at 0.275 in the length direction of the piezoelectric ceramic in the second-order mode, and the output power is 5 times that of the nonsegmented state. In the third-order mode, the piezoelectric energy harvester is segmented at 0.16 and 0.61 in the length direction of the piezoelectric ceramic, and the output power is 5.83 times that of the nonsegmented state. The research in this paper provides new ideas and methods for improving the power generation capacity of piezoelectric energy harvesters.

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“…The ongoing development of micro-power electronic devices has led to a rise in demand for autonomous applications with alternative power sources, as chemical batteries are proving to be inefficient due to their size, limited durability, and the environmental concerns they raise. Because of its abundance and high energy density, vibration energy has been suggested as a viable solution and is categorized, according to each system’s operational principal, into the piezoelectric, electrostatic, and electromagnetic types [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Harvester for an Autonomous Steel Health Monitoring System Based on Hall Effect Measurements

et al. 2022

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In this article, the construction and experimental behavior of an Internet of Things (IoT)-compatible steel health monitoring system are examined. Falling under the general category of nondestructive testing, this new sensor is combined with an energy harvester to produce an autonomous automated device that can measure, store, and transmit measuring data without any need for human intervention. Based on common principles like the Hall effect, the monitoring system is put to use, and its results are presented.

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Research on piezoelectric vibration energy harvester with variable section circular beam

Cited by 21 publications

References 26 publications

A novel two degree of freedom single magnet bistable energy harvester based on internal resonance

A novel two degree of freedom single magnet bistable energy harvester based on internal resonance

Study of the Effect of the Segmentation Method on the Power Generation Performance of Rectangular Piezoelectric Energy Harvester

Magnetic Harvester for an Autonomous Steel Health Monitoring System Based on Hall Effect Measurements

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