Investigation of the Effects of the Piezoelectric Patch Thickness and Tapering on the Nonlinearity of a Parabolic Converging Width Vibration Energy Harvester

Chand, R. R.; Tyagi, Amit Kumar

doi:10.1007/s42417-021-00359-x

Cited by 9 publications

(3 citation statements)

References 41 publications

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“…However, the response is varied very slightly at lower speeds. This is because, at higher excitations, the nonlinearities associated with the geometry and piezoelectric materials become more evident (Chand and Tyagi, 2022). Despite the fact that converging the width decreases the harvested voltage from the RVEH, the system’s generated voltage-per-volume (VPV) should be used to evaluate performance.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Design and experimental validation of an exponentially tapering width rotational piezoelectric vibration energy harvester

Chand

Tyagi

2022

Journal of Intelligent Material Systems and Structures

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The efficiency of any rotational piezoelectric vibration energy harvester (RVEH) can be improved by redesigning its host beam and making provision for self-tuning the harvester’s natural frequency with the rotational driving frequency. This article presents the design and analysis of an exponentially tapering width RVEH. The parameters for the proposed harvester’s natural frequency characteristics are acknowledged, and their effects on the peak open-circuit (OC) voltage response are discussed. A mathematical model of the system is formulated using the Euler-Bernoulli beam theory and Hamilton’s principle. Galerkin’s technique is used to acquire the system’s mass normalized mode shapes in matrix form. The proposed mathematical model is verified through ANSYS Mechanical APDL simulations and experimental methods. The harvester’s responses are obtained through MATLAB code. The two types of parameters that modify the harvester’s fundamental frequency are identified and analyzed. The proposed harvester delivered an improved power density (PD) of 5.27 [Formula: see text] and a performance amplification factor (PAF) of 3.14, operating at 7.968 Hz.

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Section: Numerical Results and Discussionmentioning

confidence: 99%

Design and experimental validation of an exponentially tapering width rotational piezoelectric vibration energy harvester

Chand

Tyagi

2022

Journal of Intelligent Material Systems and Structures

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“…B is the magnetic induction strength of the Galfenol layer. Note that in Equations ( 10) and (11), w(L, t) is the displacement of transverse vibration for the section x = L at time t. δ(x) is the Dirac function and has a relationship with the Heaviside function H(x) as…”

Section: Coupled Mechanical Equations Of the Cantilever Energy Harves...mentioning

confidence: 99%

“…The harvested electric energy can power low-power online monitoring and sensing devices in practical engineering, such as vehicle tracking, structural health monitoring, environmental monitoring, intelligent building, and aerospace fields [1][2][3]. In the literature, several energy harvesting mechanisms have been introduced to transform such vibration energy into electricity, for instance, electrostatic [4,5], electromagnetic [6,7], piezoelectric [8][9][10][11][12], and magnetostrictive [13,14].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Dynamic Response of Galfenol Cantilever Energy Harvester Considering Geometric Nonlinear with a Nonlinear Energy Sink

Wang,

Liu,

Liu

et al. 2024

Buildings

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The nonlinear energy sink (NES) and Galfenol material can achieve vibration suppression and energy harvesting of the structure, respectively. Compared with a linear structure, the geometric nonlinearity can affect the output performances of the cantilever beam structure. This investigation aims to present a coupled system consisting of a nonlinear energy sink (NES) and a cantilever Galfenol energy harvesting beam with geometric nonlinearity. Based on Hamilton’s principle, linear constitutive equations of magnetostrictive material, and Faraday’s law of electromagnetic induction, the theoretical dynamic model of the coupled system is proposed. Utilizing the Galliakin decomposition method and Runge–Kutta method, the harvested power of the external load resistance, and tip vibration displacements of the Galfenol energy harvesting model are analyzed. The influences of the external excitation, external resistance, and NES parameters on the output characteristic of the proposed coupling system have been investigated. Results reveal that introducing NES can reduce the cantilever beam’s vibration while considering the geometric nonlinearity of the cantilever beam can induce a nonlinear softening phenomenon for the output behaviors. Compared to the linear system without NES, the coupling model proposed in this work can achieve dual efficacy goals over a wide range of excitation frequencies when selecting appropriate parameters. In general, large excitation amplitude and NES stiffness, small external resistance, and small or large NES damping values can achieve the effect of broadband energy harvesting.

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Nonlinear Vibration and Internal Resonance Analysis of Microbeam with Mass Using the Modified Coupled Stress Theory

Yapanmış

2022

J. Vib. Eng. Technol.

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Investigation of the Effects of the Piezoelectric Patch Thickness and Tapering on the Nonlinearity of a Parabolic Converging Width Vibration Energy Harvester

Cited by 9 publications

References 41 publications

Design and experimental validation of an exponentially tapering width rotational piezoelectric vibration energy harvester

Design and experimental validation of an exponentially tapering width rotational piezoelectric vibration energy harvester

Nonlinear Dynamic Response of Galfenol Cantilever Energy Harvester Considering Geometric Nonlinear with a Nonlinear Energy Sink

Nonlinear Vibration and Internal Resonance Analysis of Microbeam with Mass Using the Modified Coupled Stress Theory

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