Highly Tunable Electrostatic Nanomechanical Resonators

Kazmi, Syed N. R.; Hajjaj, Amal Z.; Hafiz, Abdullah Al; Costa, Pedro M. F. J.; Younis, Mohammad I.

doi:10.1109/tnano.2017.2777519

Cited by 12 publications

(7 citation statements)

References 32 publications

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“…The interest in the dynamic behavior of electromechanical nonlinear systems is not a new, being explored in open literature [3,7,13,34,38,40,57,69,71,73,79] and classical books [1,41,47,52] for decades. Despite that, many modern applications of engineering and science are based on the interaction between an electric system with a mechanical counterpart, such as energy harvesting technologies [15,16,17,25,28,45,55,61,62], micro/nano electromechanical resonators [39,64,82,83,84], drill-strings [21,53] etc. In this way, the nonlinear dynamics of electromechanical systems continues to be a current and important topic of research.…”

Section: Introductionmentioning

confidence: 99%

On the reduction of nonlinear electromechanical systems

Cunha,

Pereira,

Avanço

et al. 2022

Preprint

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The present work revisits the reduction of the nonlinear dynamics of an electromechanical system through a quasi-steady state hypothesis, discussing the fundamental aspects of this type of approach and clarifying some confusing points found in the literature. Expressions for the characteristic time scales of dynamics are deduced from a physical analysis that establishes an analogy between electromechanical dynamics and the kinetics of a chemical reaction. It provides a physical justification, supplemented by non-dimensionalization and scaling of the equations, to reduce the dynamics of interest by assuming a quasi-steady state for the electrical subsystem, eliminating the inductive term from the electrical equation. Numerical experiments help to illustrate the typical behavior of the electromechanical

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Section: Introductionmentioning

confidence: 99%

On the reduction of nonlinear electromechanical systems

Cunha,

Pereira,

Avanço

et al. 2022

Preprint

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“…In previous works, curved resonators have been profoundly studied in the macro-and micro-scale. However, few studies have been done analytically and experimentally into arch resonators in the nano-scale (Ouakad and Younis 2011;Tajaddodianfar et al 2015bTajaddodianfar et al , 2016Kazmi et al 2017). Kazmi et al (Kazmi et al 2017) studied NESS curved resonators' tunability electrostatically actuated with different arch dimensions.…”

Section: Introductionmentioning

confidence: 99%

“…However, few studies have been done analytically and experimentally into arch resonators in the nano-scale (Ouakad and Younis 2011;Tajaddodianfar et al 2015bTajaddodianfar et al , 2016Kazmi et al 2017). Kazmi et al (Kazmi et al 2017) studied NESS curved resonators' tunability electrostatically actuated with different arch dimensions. Tadajaddofier et al (Tajaddodianfar et al 2015b(Tajaddodianfar et al , 2016 investigated numerical approaches the investigate the dynamic of nano-resonators and the numerical prediction of chaos behavior.…”

Section: Introductionmentioning

confidence: 99%

Nonlinear size-dependent modeling and dynamics of nanocrystalline arc resonators

Hajjaj

Ortiz

Abdelkefi

2021

Int J Mech Mater Des

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The adequate modeling of the micro/nano arc resonators' dynamics is vital for their successful implementation. Here, a size-dependent model, wherein material structure, porosity, and micro-rotation effects of the grains are considered, is derived by combining the couple stress theory, multi-phase model, and the classical Euler–Bernoulli beam model, aiming to characterize the frequency tunability of micro/nano arc resonators as monitoring either the axial load or the electrostatic force for the first time. The arc dimensions are optimized to show various phenomena in the same arc, namely snap-through, crossing, and veering. The first three natural frequencies are monitored, showing the size dependency on the frequency tuning, snap-through/back, and pull-in instability as shrinking the scale from micro- to nano-scale. Significant changes in the static snap-through and pull-in voltages and the resonance frequencies were shown as scale shrinks. A dynamic analysis of the resonator's vibration shows a dramatic effect of the size-dependency as shrinking dimensions around the veering zone.

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“…Rapid development in nanotechnology has led to the Micro/Nano electromechanical system (MEMS/NEMS) has become an important part of new electromechanical system [1]. Due to its many advantages, such as small size, low energy consumption, high precision, and low cost, the application range of nano devices is becoming more and more extensive, They are widely used in actuators, transistors, nano switches, and resonators and sensors and other devices [2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Large Bending Deformation of Piezoelectric Nanobeam with Surface Energy Model

Fan

2021

Preprint

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In the present paper, we analyze the influence of surface effect on the nonlinear bending behavior of piezoelectric nanobeams by Euler-Bernoulli model and surface energy model. Based on the principle of minimum potential energy and the electromagnetic theory, the nonlinear governing equation as well as the boundary conditions is deducted incorporated surface effects and piezoelectric effects. The effect of surface effect on bending deformation and induced charge of piezoelectric beams under different boundary conditions is discussed under the condition of small deformation and large deformation. The results show that, under the condition of small deformation, the surface effect reduces the bending deformation and the inductive charge, under the condition of large deformation, the surface effect has little effect on the bending deformation of piezoelectric nanobeams. Furthermore, the external constraints and cross-section width b of the piezoelectric nanobeam have significant effect on the bending deformation stiffness. these conclusions have important guiding significance for the design and correction of nanobeams-based nanomechanical systems and piezoelectric nanofunctional devices.

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Highly Tunable Electrostatic Nanomechanical Resonators

Cited by 12 publications

References 32 publications

On the reduction of nonlinear electromechanical systems

On the reduction of nonlinear electromechanical systems

Nonlinear size-dependent modeling and dynamics of nanocrystalline arc resonators

Large Bending Deformation of Piezoelectric Nanobeam with Surface Energy Model

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