Multistability in an electrically actuated carbon nanotube: A dynamical integrity perspective

Handle URI:
http://hdl.handle.net/10754/562860
Title:
Multistability in an electrically actuated carbon nanotube: A dynamical integrity perspective
Authors:
Ruzziconi, Laura; Younis, Mohammad I. ( 0000-0002-9491-1838 ) ; Lenci, Stefano
Abstract:
This study deals with a slacked carbon nanotube, which is electrostatically and electrodynamically actuated. After introducing a reduced-order model, we investigate the overall scenario of the device response when both the frequency and the electrodynamic voltage are varied. Extensive numerical simulations are performed. The nanostructure exhibits several competing attractors with different characteristics. We examine the multistability in detail, based on numerical integration of the equation of motion in time, since it leads to a considerable versatility of behavior, which may be desirable in applications. Nevertheless, these results do not take into account the presence of disturbances, which are unavoidable under realistic conditions. To extend them to the practical case where disturbances exist, we develop a dynamical integrity analysis. This is performed via the combined use of several dynamical integrity tools. Analyzing the potential well, we observe that the device may be vulnerable to pull-in considerably before the theoretical inevitable escape. Focusing on the safe range, the main attractors are examined to investigate the practical probability to catch them and the practical disappearance of the main ones. Special attention is devoted to the practical final response, to detect where the safe jump to another attractor may be ensured and where instead dynamic pull-in may arise. We build the integrity charts, which are able to illustrate if and in which parameter range the theoretical predictions can be guaranteed in practice. They may be used to establish safety factors to effectively operate the device according to the desired outcome, depending on the expected disturbances. © 2013 Springer Science+Business Media Dordrecht.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program
Publisher:
Springer Nature
Journal:
Nonlinear Dynamics
Issue Date:
12-Jul-2013
DOI:
10.1007/s11071-013-0986-5
Type:
Article
ISSN:
0924090X
Sponsors:
This research has been partially supported by the Italian Ministry of Education, Universities, and Research (MIUR) by the PRIN funded program 2010/11, grant No. 2010MBJK5B "Dynamics, stability, and control of flexible structures," and partially supported by the National Science Foundation through grant No. 0928494.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorRuzziconi, Lauraen
dc.contributor.authorYounis, Mohammad I.en
dc.contributor.authorLenci, Stefanoen
dc.date.accessioned2015-08-03T11:13:06Zen
dc.date.available2015-08-03T11:13:06Zen
dc.date.issued2013-07-12en
dc.identifier.issn0924090Xen
dc.identifier.doi10.1007/s11071-013-0986-5en
dc.identifier.urihttp://hdl.handle.net/10754/562860en
dc.description.abstractThis study deals with a slacked carbon nanotube, which is electrostatically and electrodynamically actuated. After introducing a reduced-order model, we investigate the overall scenario of the device response when both the frequency and the electrodynamic voltage are varied. Extensive numerical simulations are performed. The nanostructure exhibits several competing attractors with different characteristics. We examine the multistability in detail, based on numerical integration of the equation of motion in time, since it leads to a considerable versatility of behavior, which may be desirable in applications. Nevertheless, these results do not take into account the presence of disturbances, which are unavoidable under realistic conditions. To extend them to the practical case where disturbances exist, we develop a dynamical integrity analysis. This is performed via the combined use of several dynamical integrity tools. Analyzing the potential well, we observe that the device may be vulnerable to pull-in considerably before the theoretical inevitable escape. Focusing on the safe range, the main attractors are examined to investigate the practical probability to catch them and the practical disappearance of the main ones. Special attention is devoted to the practical final response, to detect where the safe jump to another attractor may be ensured and where instead dynamic pull-in may arise. We build the integrity charts, which are able to illustrate if and in which parameter range the theoretical predictions can be guaranteed in practice. They may be used to establish safety factors to effectively operate the device according to the desired outcome, depending on the expected disturbances. © 2013 Springer Science+Business Media Dordrecht.en
dc.description.sponsorshipThis research has been partially supported by the Italian Ministry of Education, Universities, and Research (MIUR) by the PRIN funded program 2010/11, grant No. 2010MBJK5B "Dynamics, stability, and control of flexible structures," and partially supported by the National Science Foundation through grant No. 0928494.en
dc.publisherSpringer Natureen
dc.subjectDynamical integrityen
dc.subjectMultistabilityen
dc.subjectNanoelectromechanical systemsen
dc.subjectNonlinear dynamicsen
dc.titleMultistability in an electrically actuated carbon nanotube: A dynamical integrity perspectiveen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.identifier.journalNonlinear Dynamicsen
dc.contributor.institutionDepartment of Civil, Building Engineering and Architecture, Polytechnic University of Marche, Via Brecce Bianche, 60131 Ancona, Italyen
dc.contributor.institutionDepartment of Mechanical Engineering, State University of New York at Binghamton, Binghamton, NY 13902, United Statesen
kaust.authorYounis, Mohammad I.en
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