Size-dependent dynamic pull-in instability of vibrating electrically actuated microbeams based on the strain gradient elasticity theory

HM Sedighi - Acta Astronautica, 2014 - Elsevier
This paper presents the impact of vibrational amplitude on the dynamic pull-in instability and
fundamental frequency of actuated microbeams by introducing the second order frequency …

Pull-in Phenomenon in the Electrostatically Micro-switch‎ Suspended between Two Conductive Plates using the Artificial‎ Neural Network

M Aliasghary, H Mobki, HM Ouakad - Journal of Applied and …, 2022 - jacm.scu.ac.ir
Artificial Neural Networks (ANN) are designed to evaluate the pull-in voltage of MEMS
switches. The mathematical model of a micro-switch subjected to electrostatic force is …

Static bifurcation and primary resonance analysis of a MEMS resonator actuated by two symmetrical electrodes

J Han, Q Zhang, W Wang - Nonlinear Dynamics, 2015 - Springer
This paper investigates the static and dynamic characteristics of a doubly clamped micro-
beam-based resonator driven by two electrodes. The governing equation of motion is …

[HTML][HTML] Dynamic pull-in instability of geometrically nonlinear actuated micro-beams based on the modified couple stress theory

HM Sedighi, M Chan-Gizian… - Latin American Journal of …, 2014 - SciELO Brasil
This paper investigates the dynamic pull-in instability of vibrating micro-beams undergoing
large deflection under electrosatically actuation. The governing equation of motion is …

Path tracking control of electromechanical micro-positioner by considering control effort of the system

MR Gharib, A Koochi… - Proceedings of the …, 2021 - journals.sagepub.com
Position controlling with less overshoot and control effort is a fundamental issue in the
design and application of micro-actuators such as micro-positioner. Also, tracking a …

[HTML][HTML] Nonlinear dynamic characteristics of FGCNTs reinforced microbeam with piezoelectric layer based on unifying stress-strain gradient framework

WD Yang, CQ Fang, X Wang - Composites Part B: Engineering, 2017 - Elsevier
A size-dependent model of functionally graded carbon nanotubes (FGCNTs) reinforced
microbeam with piezoelectric layer is presented based on unifying nonlocal stress and strain …

Application of piezoelectric actuation to regularize the chaotic response of an electrostatically actuated micro-beam

S Azizi, MR Ghazavi, S Esmaeilzadeh Khadem… - Nonlinear …, 2013 - Springer
The impetus of this study is to investigate the nonlinear chaotic dynamics of a clamped–
clamped micro-beam exposed to simultaneous electrostatic and piezoelectric actuation. The …

Electromagnetic instability analysis of nano-sensor

A Koochi, M Abadyan, S Gholami - The European Physical Journal Plus, 2021 - Springer
The enormous increase in the application of nano-electromechanical systems for biological
purposes, as well as modern sensors in the particle accelerators, leads to new operation …

Bifurcation analysis of torsional micromirror actuated by electrostatic forces

M Taghizadeh, H Mobki - Archives of Mechanics, 2014 - am.ippt.gov.pl
In this paper, static and dynamic behavior of an electrostatically actuated torsional micro-
actuator is studied. The microactuator is composed of a micromirror and two torsional …

Using strain gradient elasticity in conjunction with Gurtin–Murdoch theory for modeling the coupled effects of surface and size phenomena on the instability of narrow …

M Keivani, A Koochi, A Kanani… - Proceedings of the …, 2017 - journals.sagepub.com
While comprehensive researches have been conducted on modeling the electromechanical
stability of wide-enough beam-plate nano-switches, few researchers have focused on …