Energy harvesting in a nonlinear piezomagnetoelastic beam subjected to random excitation

Paula, Aline Souza de; Inman, Daniel J.; Savi, Marcelo A.

doi:10.1016/j.ymssp.2014.08.020

Cited by 88 publications

(36 citation statements)

References 14 publications

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“…Litak [10] verified that a bistable structure has a stochastic resonance when excited with a white noise excitation. De Paula [11] experimentally investigated the system when subjected to a random excitation and showed some remarkable points, comparing the linear, nonlinear monostable and nonlinear bistable configuration. The energy harvested is bigger in the nonlinear bistable configuration and when oscillate around the both stable equilibrium points.…”

Section: Introductionmentioning

confidence: 99%

Energy Harvesting in a Nonlinear System Under Harmonic and Random Excitations

Pereira¹,

Paula²,

Fabro³

et al. 2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Section: Introductionmentioning

confidence: 99%

Energy Harvesting in a Nonlinear System Under Harmonic and Random Excitations

Pereira¹,

Paula²,

Fabro³

et al. 2017

Proceedings of the 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Therefore, no wonder a large portion of the vibration energy harvesting research is currently developed towards designing harvesters capable of harvesting energy from broadband vibrations [4]. One proposed solution is introducing nonlinearities into the VEHs [5][6][7][8][9][10]. Such VEHs have nonlinear dynamic properties that shall influence the coupling between the base vibration and the harvester and thus broaden its working bandwidth.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of a Nonlinear Energy Harvester under Broadband Vibrations

Wang¹,

Li²,

Liu

2015

Proceedings of the 2015 International Conference on Applied Science and Engineering Innovation

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Abstract. Vibration energy harvesting is a concept to convert the mechanical energy contained in vibrations into useable or storable electrical energy. This article focuses on the influence of nonlinearities upon the output of a piezomagnetoelectric vibration energy harvester (VEH) under broadband vibrations. Nonlinear equations of motion that describe the VEH are given along with numerical simulations. Especially, the relationship between the outputs of the VEH and its nonlinearity is derived, which is meaningful for designing the nonlinearity goal-directed. The numerical analysis presents a comparison between the voltage outputs of a linear VEH and a nonlinear one under broadband vibrations. Simulation results show that, compared with the linear VEH, the nonlinear VEH presented in this article has a wider working bandwidth and a lower resonant frequency which indicates the nonlinear VEH has a better performance under broadband vibrations.

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“…This "double-well" type potential function can be induced in several ways, such as strategically placing magnets and harnessing the resulting complex oscillations (Holmes-Moon oscillator). [37][38][39][40] Another common way to induce bi-stability, which is of interest in this study, is to manufacture plates or beams with an initial curvature to allow two separate stable configurations on either side of the flat configuration. [41][42][43] The initial curvature is designed so that the ambient mechanical load would be sufficient to rapidly switch the system from one stable configuration to another one.…”

mentioning

confidence: 99%

Energy harvesting using snap-through deformation in lattice structures

Loaliyan

Bahaloo

Ghosh

et al. 2018

Applied Physics Letters

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We demonstrated the feasibility of harvesting mechanical energy through the proper design and installation of a lattice structure which undergoes snap-through deformation under applied mechanical loading. First, the theoretical formulations for both symmetric and asymmetric modes of the snap-through deformation in a 2D lattice structure were derived. Then, experiments were conducted on the prototype to measure the energy harvesting ability at different frequencies and to investigate the capability of charging a capacitor connected to the lattice prototype. Finally, the effects of the defect in the lattice on energy harvesting were discussed. Our results showed that the average generated voltage across a 25 kX resistor increased by increasing the frequency of loading. However, energy stored in a capacitor was independent of loading frequency. For a defective structure with a fixed vertex, the generated voltage is lower yet increasing with the frequency of loading. The designed structure is robust and provides sustainable energy output under cyclic loading even with the presence of defects and imperfections. Published by AIP Publishing.

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Energy harvesting in a nonlinear piezomagnetoelastic beam subjected to random excitation

Cited by 88 publications

References 14 publications

Energy Harvesting in a Nonlinear System Under Harmonic and Random Excitations

Energy Harvesting in a Nonlinear System Under Harmonic and Random Excitations

Modeling and Simulation of a Nonlinear Energy Harvester under Broadband Vibrations

Energy harvesting using snap-through deformation in lattice structures

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