Harvesting Energy from 2D Array of Harvesters

Vali, Mohammad Reyaz Ahmad; Faruque, Ali Shaikh

doi:10.1007/978-3-030-81170-9_23

Cited by 1 publication

(1 citation statement)

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“…Piezoelectric energy harvesting is a thoroughly researched topic that has recently gained popularity. Numerous papers in the literature focused only on numerical simulations, analyses, and optimizations [1][2][3][4][5][6][7][8][9]. However, not many articles address the time response [10,11].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analyses on the Responses of Unimorph and Bimorph Piezoelectric Harvesters in Time Domain

Veli¹,

SĂVESCU²,

Morega³

et al. 2023

APME/EMMD

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The paper presents the assessment of the electric output rendered by a unimorph and a bimorph piezoelectric harvester, with one and two active piezoceramic wafers, using numerical simulations. Expected sinusoidal voltages were obtained in a time-dependent study, with a time step corresponding to the eigenfrequency found after conducting an Eigenfrequency study. The terminal voltages obtained agree with the Euler-Bernoulli beam theory and with the distance of the piezoelectric layers from the neutral fiber. By adding an electric circuit node to the electric field problem to form a closed internal circuit, a single unified sinusoidal voltage response should be obtained, coinciding with the input vibration signal. The independent voltages of the layers of a piezoelectric structure with more than one layer (usually two or four) cannot be observed experimentally, as a harvester has only two terminals that pick the overall electric response from all the layers, giving a single alternating voltage output.

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