A Novel Ropes-Driven Wideband Piezoelectric Vibration Energy Harvester

Zhang, Jinhui; Kong, Ling-Min; Zhang, Luan; Li, Fang; Zhou, Wei; Ma, Shenglin; Qin, Lifeng

doi:10.3390/app6120402

Cited by 13 publications

(11 citation statements)

References 33 publications

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“…One approach consists in exploiting several modes of vibration of the cantilever harvester (making use of segmented electrodes) [14] or of more complex structures, like L-shaped harvesters [15]. Another approach consists in making use of non-linear components like bi-stable cantilevers or ropes [16][17][18]. The possibility of widening the band of the cantilever harvester by increasing the number of degrees of freedom (DOFs) has been analyzed in some research.…”

Section: Introductionmentioning

confidence: 99%

Development of Piezoelectric Harvesters with Integrated Trimming Devices

et al. 2018

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Featured Application: Trimming devices integrated with the structural layer of the harvester are proposed for improving energy harvesting at low frequency and in the presence of periodic excitation with multiple harmonics. Abstract: Piezoelectric cantilever harvesters have a large power output at their natural frequency, but in some applications the frequency of ambient vibrations is different from the harvester's frequency and/or ambient vibrations are periodic with some harmonic components. To cope with these operating conditions harvesters with integrated trimming devices (ITDs) are proposed. Some prototypes are developed with the aid of an analytical model and tested with an impulsive method. Results show that a small trimming device can lower the main resonance frequency of a piezoelectric harvester of the same extent as a larger tip mass and, moreover, it generates at high frequency a second resonance peak. A multi-physics numerical finite element (FE) model is developed for predicting the generated power and for performing a stress-strain analysis of harvesters with ITDs. The numerical model is validated on the basis of the experimental results. Several configurations of ITDs are conceived and studied. Numerical results show that the harvesters with ITDs are able to generate relevant power at two frequencies, owing to the particular shape of the modes of vibration. The stress in the harvesters with ITDs is smaller than the stress in the harvester with a tip mass trimmed to the same frequency.

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Section: Introductionmentioning

confidence: 99%

Development of Piezoelectric Harvesters with Integrated Trimming Devices

et al. 2018

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“…The operating bandwidth is extended from 12 to 26 Hz and the power density of the device is significantly improved. Zhang et al 327 reported a novel rope-driven FUC approach, in which the high-frequency generating beam is driven by an array of low-frequency driving beams using ropes. The mechanism takes the advantages of FUC and multimodal harvesting techniques, which not only produces high output power but also has the potential to achieve unlimitedly wide bandwidth with the increasing number of beams.…”

Section: Mechanical Impact Approachmentioning

confidence: 99%

A comprehensive review on piezoelectric energy harvesting technology: Materials, mechanisms, and applications

Liu

Zhong

Lee

et al. 2018

Applied Physics Reviews

643

314

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The last decade has witnessed significant advances in energy harvesting technologies as a possible alternative to provide a continuous power supply for small, low-power devices in applications, such as wireless sensing, data transmission, actuation, and medical implants. Piezoelectric energy harvesting (PEH) has been a salient topic in the literature and has attracted widespread attention from researchers due to its advantages of simple architecture, high power density, and good scalability. This paper presents a comprehensive review on the state-of-the-art of piezoelectric energy harvesting. Various key aspects to improve the overall performance of a PEH device are discussed, including basic fundamentals and configurations, materials and fabrication, performance enhancement mechanisms, applications, and future outlooks.

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“…Hence, we proposed a low-frequency and wideband harvester based on a hybrid frequency up-conversion (FUC) nonlinear and multimodal mechanism in our previous work [ 57 ], aiming to combine the advantages of these two mechanisms, as demonstrated in Figure 1 . The proposed wideband PVEH system (shown in Figure 1 a) is composed of one high-frequency beam attached with piezoelectric material as the generating beam (HFGB) and multiple low-frequency beams with different frequencies as driving beams (LFDBs).…”

Section: Introductionmentioning

confidence: 99%

“…The main advantages of the rope-driven PVEH can be described as below: Wider or even unlimited bandwidth could be achieved if the number of LFDBs are continuously increased. Unlike wideband PVEH based on an array piezoelectric beams in serial/parallel connection, the output performance of proposed PVEH will not deteriorate with the changing number of LFDBs, which has theoretically and experimentally been proved, and Figure 1 b,c show a typical experimental result [ 57 ]. Similar to the impact-driven FUC wideband PVEH using a stopper, when an individual LFDB pulls the HFGB to oscillate it can achieve wideband energy harvesting, named as rope-driven FUC mechanism.…”

Section: Introductionmentioning

confidence: 99%

Modeling of a Rope-Driven Piezoelectric Vibration Energy Harvester for Low-Frequency and Wideband Energy Harvesting

et al. 2021

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In this work, a mechanical model of a rope-driven piezoelectric vibration energy harvester (PVEH) for low-frequency and wideband energy harvesting was presented. The rope-driven PVEH consisting of one low-frequency driving beam (LFDB) and one high-frequency generating beam (HFGB) connected with a rope was modeled as two mass-spring-damper suspension systems and a massless spring, which can be used to predict the dynamic motion of the LFDB and HFGB. Using this model, the effects of multiple parameters including excitation acceleration, rope margin and rope stiffness in the performance of the PVEH have been investigated systematically by numerical simulation and experiments. The results show a reasonable agreement between the simulation and experimental study, which demonstrates the validity of the proposed model of rope-driven PVEH. It was also found that the performance of the PVEH can be adjusted conveniently by only changing rope margin or stiffness. The dynamic mechanical model of the rope-driven PVEH built in this paper can be used to the further device design or optimization.

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A Novel Ropes-Driven Wideband Piezoelectric Vibration Energy Harvester

Cited by 13 publications

References 33 publications

Development of Piezoelectric Harvesters with Integrated Trimming Devices

Development of Piezoelectric Harvesters with Integrated Trimming Devices

A comprehensive review on piezoelectric energy harvesting technology: Materials, mechanisms, and applications

Modeling of a Rope-Driven Piezoelectric Vibration Energy Harvester for Low-Frequency and Wideband Energy Harvesting

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