Title : ( Annalytical Modeling of the Effect of Electrostatic Actuation and Casimir Force on the Pull-in Instability and Static Behavior of Torsional Nano/Micro Actuators )
Authors: Hamid Moeenfard , Ali Darvishian , Mohammad Taghi Ahmadian ,
Full TextAbstract
This paper studies the effect of Casimir force on the pull-in instability of electrostatically actuated torsional nano/micro actuators. Dependence of the actuator\'s pull-in angle and pull-in voltage on several design parameters are investigated and it is found that Casimir force can considerably reduce the stability limits of the torsional actuators. Nonlinear equilibrium equation is solved numerically and analytically using straight forward perturbation expansion method. It is observed that a fourth-order perturbation approximation can precisely model the behavior of a torsional actuator. The results of this paper can be used for safe and stable design of torsional nano/micro actuators.
Keywords
, Torsional nano/micro actuators; electrostatic actuation; Casimir force; pull, in instability; straight forward perturbation expansion
@article{paperid:1033927,
author = {Moeenfard, Hamid and Ali Darvishian and Mohammad Taghi Ahmadian},
title = {Annalytical Modeling of the Effect of Electrostatic Actuation and Casimir Force on the Pull-in Instability and Static Behavior of Torsional Nano/Micro Actuators},
journal = {International Journal of modern physics B},
year = {2013},
volume = {27},
number = {6},
month = {January},
issn = {0217-9792},
pages = {1350008--1350008},
numpages = {0},
keywords = {Torsional nano/micro actuators; electrostatic actuation; Casimir force; pull-in instability; straight forward perturbation expansion},
}
%0 Journal Article
%T Annalytical Modeling of the Effect of Electrostatic Actuation and Casimir Force on the Pull-in Instability and Static Behavior of Torsional Nano/Micro Actuators
%A Moeenfard, Hamid
%A Ali Darvishian
%A Mohammad Taghi Ahmadian
%J International Journal of modern physics B
%@ 0217-9792
%D 2013
