A monostable piezoelectric energy harvester for broadband low-level excitations

Fan, Kangqi; Tan, Qinxue; Zhang, Yiwei; Liu, Shaohua; Cai, Meiling; Zhu, Yang

doi:10.1063/1.5022599

Cited by 126 publications

(52 citation statements)

References 32 publications

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“…For example, [28] designed a non-resonant HEH (piezoelectric and electrostatic) that is activated with low-frequency mechanical vibrations, which in turn are converted in electricity.[29] achieve multiple resonant operations to a low-frequency range of 10-20 Hz with a piezoelectric multimodal energy harvester proposed. A similar case was presented by [30], which introduced a PI-VEH composed of two piezoelectric cantilever beams, a suspended magnet, and a set of coils. Theoretical simulations and experimental measurements showed that the nonlinear interaction between the piezoelectric and electromagnetic energy harvesters produce chaotical or harmonic behaviors that improve the power outputs in the energy harvester.…”

mentioning

confidence: 88%

Electrical Performance of a Piezo-inductive Device for Energy Harvesting with Low-Frequency Vibrations

Vargas

Tinoco

2019

Actuators

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This study presents the experimental evaluation of a piezo-inductive mechanical system for applications of energy harvesting with low-frequency vibrations. The piezo-inductive vibration energy harvester (PI-VEH) device is composed of a voice coil motor (VCM) extracted from a hard disk drive. The proposed design allows the integration of different element types as beams and masses. The dynamic excitations in the system produce a pendular motion carried out by a hybrid arm (rigid-flexible) that generates energy with the rotations (with a coil) and the beam strains (with a piezoelectric material). The electrical assessment was performed through different working modes classified as inductive, inductive with magnetic instabilities, and piezo-inductive. The instabilities in the harvester refer to external forces induced by two magnets that repel each other. The first two inductive configurations were designed as a function of three parameters (length, mass, instability angle) to debug these using the maximum output voltage. The selected experiments were conducted in a piezo-inductive configuration. The results showed two effects on the output voltage-the first one is related to a system without resonances (higher broadband), and the second effect is associated with a multi-resonant system. As a final conclusion, it is pointed out that the electrical performance can be improved with the magnetic instabilities since these considerably amplified the output voltages.Actuators 2019, 8, 55 2 of 14 applications [5]. For example, [6] show that the energy harvesting systems can feed sensor networks, since the replacement of the batteries can be very impractical due to its remote locations. For this case, the use of non-limited energy sources becomes relevant if energy harvesting technologies can capture, store, and supply the energy permanently to these sensor networks [7].Different alternatives have been proposed to use the renewable energy sources through the energy scavenging, which is defined as the process by which the energy is transformed and provided into small quantities [8]. Diverse energy sources are used for this purpose, among which are solar, wind, electromagnetic radiation, thermal, and mechanical vibrations [9], and a combination of different transduction mechanisms can be integrated in order to capture the energy from these energy sources such as magnetostrictive, piezoelectric, electromagnetic, and electrostatic. These systems are called hybrid energy harvesters (HEH), as mentioned by [10]. Vibratory energy sources have shown promissory applications in devices that demand low power consumption [11]. Since the electrical power is obtained with resonant systems that can improve its electrical performance from the design focused on the excitation frequencies [12,13]. In this context, the energy generated by mechanical vibrations could be provided from the bridges, winds, river and sea waves, human body motions, etc. For the mentioned energy sources, [14] considers high frequencies to be above 50 Hz and low frequ...

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confidence: 88%

Electrical Performance of a Piezo-inductive Device for Energy Harvesting with Low-Frequency Vibrations

Vargas

Tinoco

2019

Actuators

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“…On the other hand, utilizing stoppers in the vibration-based energy harvesting to produce the nonlinear impact force as an alternative method has also been extensively proposed and investigated. [34][35][36][37][38][39][40][41][42][43][44][45] Soliman et al 41 proposed a wideband micro-power generator with a fixed stopper. Comparing to the traditional generators, the bandwidth was increased by 240% in their experiment, but the peak output voltage was decreased much.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, Wang et al 44 designed a tunable resonance and broadband compact piezoelectric vibration-based energy harvester by using a stopper plate. In addition, Fan et al 45 combined the magnetic attraction force and the impact force to design a mono-stable piezoelectric energy harvester. Their results displayed a softening hysteresis and a wider bandwidth.…”

Section: Introductionmentioning

confidence: 99%

“…Concerning the studies about energy harvesting with stoppers mentioned above, [41][42][43][44][45] the performance of the energy harvester has been improved, but it is noted that the bandwidth and peak output power are not always optimal because the stopper configuration was just directly exploited and they did not consider the influences of the stopper type and material. To this end, the present study focuses on exploring impacts of the type and material of applied stopper on the output performance of energy harvesting from vibrations.…”

Section: Introductionmentioning

confidence: 99%

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Impacts of stopper type and material on the broadband characteristics and performance of energy harvesters

et al. 2019

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Exploiting nonlinear impact force induced by a stopper has been widely proposed to broaden the bandwidth of energy harvesters from mechanical vibrations, but the previous studies just directly employed the stopper and did not consider the effect of inherent factors of the stopper like its type and material. This letter devotes to efficiently utilize the stopper to broaden the resonance region of the energy harvester mainly from perspective of stopper type and material. Four stopper types are taken into account including the stopper with rigid and soft materials and the spring stopper. Experimental results show that two sides followed stopper type can greatly increase the bandwidth which is much better than other considered types. Importantly, using the stopper with soft materials or the spring stopper is followed by a wider resonance region and a higher output voltage of the energy harvester compared to that with rigid materials. Moreover, agreements between theoretical predictions and experimental measurements indicate the feasibility of using the trilinear spring model to describe the nonlinear impact force which is determined by stopper type and material. The present study delivers to essentially improve the output performance of energy harvesters by selecting the efficient stopper.

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“…Monostable and bistable harvesters are the typical structures for nonlinear energy harvesting. For monostable energy harvester, Fan et al [7] developed a monostable piezoelectric energy harvester by applying a symmetric magnetic attraction and a pair of stoppers, which can harvest vibration energy from low-level excitations. Nasser et al [8] proposed an efficient and broadband vortex-induced vibrations energy harvester by using nonlinear attractive magnetic forces.…”

Section: Introductionmentioning

confidence: 99%

Design and Experimental Investigation of a Piezoelectric Rotation Energy Harvester Using Bistable and Frequency Up-Conversion Mechanisms

et al. 2018

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Harvesting energy from rotational motion for powering low-power electrical devices is attracting increasing research interest in recent years. In this paper, a magnetic-coupled buckled beam piezoelectric rotation energy harvester (MBBP-REH) with bistable and frequency up-conversion is presented to harvest low speed rotational energy with a broadband. A buckled beam attached with piezoelectric patches under dynamical axial load enables the harvester to achieve high output power under small excitation force. The electromechanical coupling dynamical model is developed to characterize the MBBP-REH. Both the simulations and experiments are carried out to evaluate the performance of the harvesters in various conditions under different excitations. The experimental results indicate that the proposed harvester is applicable for low speed rotation and can generate stable output power under wideband rotating excitation. For the harvester with two magnets that produce attractive forces with the center magnet of the buckled beam, the average power is 682.7 μW and the maximum instantaneous power is 1450 μW at 360 r/min.

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A monostable piezoelectric energy harvester for broadband low-level excitations

Cited by 126 publications

References 32 publications

Electrical Performance of a Piezo-inductive Device for Energy Harvesting with Low-Frequency Vibrations

Electrical Performance of a Piezo-inductive Device for Energy Harvesting with Low-Frequency Vibrations

Impacts of stopper type and material on the broadband characteristics and performance of energy harvesters

Design and Experimental Investigation of a Piezoelectric Rotation Energy Harvester Using Bistable and Frequency Up-Conversion Mechanisms

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