Homoclinic bifurcation for a bi-stable piezoelectric energy harvester subjected to galloping and base excitations

Li, Haitao; Dong, Bo; Cheng, Fan; Qin, Weiyang; Tian, Ruilan

doi:10.1016/j.apm.2021.10.050

Cited by 27 publications

(2 citation statements)

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“…Further explorations have delved into configurations with a higher number of stable states [112] and combinations with impact-based frequency up-conversion [113]. Recently, Tao-Hai et al [114] (2022) scrutinized the performance of a bistable system under both wind-induced galloping and base excitation. Kim et al [115] introduced an intriguing method to leverage bistability by placing two adjacent cantilevers, each equipped with a tip magnet, on the same elastic support.…”

Section: Magnetic Interaction Broadband and Plucking Mechanismsmentioning

confidence: 99%

A Review of Nonlinear Mechanisms for Frequency Up-Conversion in Energy Harvesting

Rosso,

Ardito

2023

Actuators

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Vibration-based energy harvesting has garnered considerable attention from researchers over the past two decades, using different transduction mechanisms. In this context, the utilization of piezoelectric materials has proven to be highly successful, due to their power density, across a broad range of voltages. A primary challenge in environmental vibration harvesting lies in the frequency mismatch between the devices, which typically exhibit optimal performance at hundreds or thousands of hertz due to their small size (centimeter or millimeter) and the environmental vibration. The latter has considerable energy density around tens of hertz. For this reason, over the last 15 years, the scientific community has concentrated on exploring techniques for band broadening or frequency up-conversion by intentionally introduced (or designed) nonlinearities. This review, following an introduction to the topic of vibration energy harvesting, provides a description of the primarily developed mechanisms, presenting a chronological development for each, from the initial works to the most recent advancements. Additionally, the review touches upon implementation efforts at the micro-electromechanical systems (MEMS) scale for each described technique. Finally, the incorporation of nonlinearities through electronic circuits to enhance performance is briefly discussed.

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Section: Magnetic Interaction Broadband and Plucking Mechanismsmentioning

confidence: 99%

A Review of Nonlinear Mechanisms for Frequency Up-Conversion in Energy Harvesting

Rosso,

Ardito

2023

Actuators

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“…Among multi-stable harvesters, the bistable energy harvester (BEH) is simple in structure and exhibits a quite good performance. Under external excitations, the BEHs can execute jumping between two potential wells, so its response has a large amplitude and results in a high output [16][17][18][19]. The experimental results of Ferrari et al [20] showed that the root mean square (RMS) voltage of the bi-stable harvester could be increased by 88% compared to the linear counterpart.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and experimental studies on bistable vibration energy harvester with levitation magnet couple

Deng¹,

Qin²,

Zhang³

2022

J. Phys. D: Appl. Phys.

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To improve the efficiency of vibration energy harvesting, a levitation magnet couple is introduced to the bi-stable energy harvester (BEH) to create a desired potential energy, by which the harvester’s response and output can be increased greatly. Compared to the classical BEH, the novel harvester has a lower potential barrier and a flatter bottom of its potential well, which can help increase the response and outputs. The experimental results show that the introduction of levitation magnet couple effectively extends the working frequency bandwidth of the harvester. The inter-well jump can be executed easily under weak stochastic excitations and the amplitude is larger than the classical one, even in the case of executing the same kind of intra-well oscillation. The experiments prove that the output voltage of the novel harvester outperforms the classical BEH over the whole intensity range. This study may provide a good guidance to improving the performance of bistable energy harvester.

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Rosso

2024

SpringerBriefs in Applied Sciences and Technology

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Homoclinic bifurcation for a bi-stable piezoelectric energy harvester subjected to galloping and base excitations

Cited by 27 publications

References 50 publications

A Review of Nonlinear Mechanisms for Frequency Up-Conversion in Energy Harvesting

A Review of Nonlinear Mechanisms for Frequency Up-Conversion in Energy Harvesting

Theoretical and experimental studies on bistable vibration energy harvester with levitation magnet couple

State-of-the-Art

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