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Nonlinear Dynamics of Micro- and Nanosystems

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Nanotechnology and Applied Nanosciences".

Deadline for manuscript submissions: closed (9 September 2022) | Viewed by 2679

Special Issue Editors


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Guest Editor
Department of Civil, Building and Architecture Engineering, Polytechnic University of Marche, 60131 Ancona, Italy
Interests: nonlinear dynamics; AFM; graphene; carbon nanotubes

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Guest Editor
Department of Civil and Environmental Engineering, Politecnico di Milano, 20133 Milano, Italy
Interests: MEMS; nonlinear dynamics; inertial sensors; multiphysics modelling

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Guest Editor
TIMA, Grenoble INP, CNRS, University Grenoble Alpes, 38000 Grenoble, France
Interests: M/NEMS; nonlinear dynamics; chaos; PMUT

Special Issue Information

Dear Colleagues,

The development of nano/microelectromechanical systems (NEMS/MEMS) is ever accelerating. New generations of sensors and actuators with unexpected and extraordinary capabilities are emerging in a wide range of applications in modern technology. Because of its inherent complexity, nonlinear dynamics provides yet another approach to create disruptive systems with unprecedented properties leading to innovative implementations.

Nonlinear dynamics is ubiquitous in micro- and nanosystems, even in the presence of extremely small excitation forces. The associated nonlinear phenomena have already demonstrated groundbreaking improvements for MEMS. Examples include the use of synchronization mechanisms in time-keeping applications, or amplitude stabilization through high-order nonlinearity. Conversely, NEMS/MEMS can be used as model systems to probe complex nonlinear dynamics, such as chimera states or chaos. To date, many nonlinear phenomena at micro- and nanoscale (e.g., strong coupling, multistability, internal and parametric resonances) still require more comprehensive investigation since their impact on microsystems has yet to be revealed.

This Special Issue aims to collect papers having the common feature of involved nonlinear aspects and intricate phenomena in micro- and nanosystems.

Major interest for this Special Issue is on contributions with methodological approaches, modelling, as well as theoretical and experimental analyses investigating signatures of nonlinear phenomena.

This Special Issue collects innovative research and the recent advances of the most relevant knowledge on the topic, enhancing micro- and nanostructures to exceptional characteristics.

Dr. Pierpaolo Belardinelli
Dr. Valentina Zega
Dr. Martial Defoort
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • MEMS
  • NEMS
  • nonlinear dynamics

Published Papers (1 paper)

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Research

18 pages, 735 KiB  
Article
Natural Frequencies and Modes of Electrostatically Actuated Curved Bell-Shaped Microplates
by Asaf Asher, Rivka Gilat and Slava Krylov
Appl. Sci. 2022, 12(5), 2704; https://doi.org/10.3390/app12052704 - 5 Mar 2022
Cited by 4 | Viewed by 1458
Abstract
Configuration-dependent spectral behavior of initially curved circular microplates loaded by a distributed nonlinear electrostatic force is investigated. The structures under consideration are distinguished by two interesting features. The first is that the plates are initially bell-shaped, rather than flat or spherical, and therefore [...] Read more.
Configuration-dependent spectral behavior of initially curved circular microplates loaded by a distributed nonlinear electrostatic force is investigated. The structures under consideration are distinguished by two interesting features. The first is that the plates are initially bell-shaped, rather than flat or spherical, and therefore have regions of both positive and negative curvature. Second, the plates are sufficiently curved to exhibit snap-through buckling and bistability. The structure is described in the framework of the nonlinear Föppl von Kármán shallow plate theory. The influence of the initial curvature and loading on the free vibrations around unloaded and deformed equilibria is investigated. The results of the Galerkin model backed by the finite elements analysis show that the modes of even slightly curved bell-shaped unloaded plates differ significantly from those of the initially flat plates. As a result, when the natural modes of a curved plate are used as the base functions, a significantly better convergence of the RO model is achieved. In the vicinity of the critical snap-through and snap-back configurations, the sensitivity of the natural frequencies to the plate deflection is much higher than in the unloaded state. This high tunability opens new opportunities for the design of better resonant sensors with enhanced performance. Full article
(This article belongs to the Special Issue Nonlinear Dynamics of Micro- and Nanosystems)
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