Modeling and Optimization of Frequency Tunable Piezoelectric Micro Power Generator

Alrashdan, Mohd H. S.; Ahmed, Mohammad Zayed; Abu-Al-Aish, Amir

doi:10.2174/1876402910666180118125520

Cited by 4 publications

(1 citation statement)

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“…It is found that the thickness of the piezoelectric layer has a crucial role to play in the resonance behaviour. From Table 3, it can be seen that as the thickness of the piezoelectric layer increases from 1 to 4 nm, the resonance frequency increases by 80% for an applied voltage of 0.2 V. A similar behaviour is reported by Alrashdan et al [31] on piezoelectric micro-power generators (PMPG); they concluded that the thickness is one of the important factors in the PMPG optimisation. The external electric voltage also affects the resonance frequency as shown in Table 3.…”

Section: Dq Solutionsupporting

confidence: 82%

Resonant frequency tuning of nanobeams by piezoelectric nanowires under thermo‐electro‐magnetic field: a theoretical study

Farajpour

Shahidi

Farajpour

2018

Micro & Nano Letters

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A piezoelectric nanowire is used to adjust the resonant frequencies of nanoscale beams in a magneto-thermal environment. For tuning purposes, an external electric voltage is applied to the piezoelectric nanowire. Eringen's non-local theory of elasticity is employed to capture length scale effects. Based on the Timoshenko beam theory in conjunction with the Pasternak model and non-local piezoelasticity, the scale-dependent partial differential equations of the smart nanoscale system are derived. An exact solution procedure is proposed for the frequency tuning of nanobeams with simply supported boundary conditions. Furthermore, the frequency response of the piezoelectric nanosystem with different boundary conditions is analysed with the help of the differential quadrature method as an efficient numerical approach. It is found that the thickness of the piezoelectric nanowire, the temperature change, the longitudinal magnetic field and the applied electric voltage can be exploited in a careful way in order to adjust the resonant frequency of nanobeams.

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Section: Dq Solutionsupporting

confidence: 82%