Adjustable static and dynamic actuation of clamped-guided beams using electrothermal axial loads

Handle URI:
http://hdl.handle.net/10754/627162
Title:
Adjustable static and dynamic actuation of clamped-guided beams using electrothermal axial loads
Authors:
Alcheikh, Nouha; Tella, Sherif Adekunle; Younis, Mohammad I. ( 0000-0002-9491-1838 )
Abstract:
The paper presents adjustable static and dynamic actuations of in-plane clamped-guided beams. The structures, of variable stiffness, can be used as highly tunable resonators and actuators. Axial loads are applied through electrothermal U-shaped and flexure beams actuators stacked near the edges of curved (arch) beams. The electrothermal actuators can be configurred in various ways to adjust as desired the mechanical stiffness of the structures; thereby controlling their deformation stroke as actuators and their operating resonance frequency as resonators. The experimental and finite element results demonstrate the flexibility of the designs in terms of static displacements and resonance frequencies of the first and second symmetric modes of the arches. The results show considerable increase in the resonance frequency and deflection of the microbeam upon changing end actuation conditions, which can be promising for low voltage actuation and tunable resonators applications, such as filters and memory devices. As case studies of potential device configurations of the proposed design, we demonstrate eight possibilities of achieving new static and dynamic behaviors, which produce various resonance frequencies and static displacement curves. The ability to actively shift the entire frequency response curve of a device is desirable for several applications to compensate for in-use anchor degradations and deformations. As an example, we experimentally demonstrate using the device as a resonant logic gate, with active resonance tuning, showing fundamental 2-bit logic functions, such as AND,XOR, and NOR.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program
Citation:
Alcheikh N, Tella SA, Younis MI (2018) Adjustable static and dynamic actuation of clamped-guided beams using electrothermal axial loads. Sensors and Actuators A: Physical 273: 19–29. Available: http://dx.doi.org/10.1016/j.sna.2018.01.066.
Publisher:
Elsevier BV
Journal:
Sensors and Actuators A: Physical
KAUST Grant Number:
OSR-2016-CRG5-3001
Issue Date:
14-Feb-2018
DOI:
10.1016/j.sna.2018.01.066
Type:
Article
ISSN:
0924-4247
Sponsors:
This publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) office of sponsored research OSR under Award No. OSR-2016-CRG5-3001.
Additional Links:
http://www.sciencedirect.com/science/article/pii/S0924424717317764
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorAlcheikh, Nouhaen
dc.contributor.authorTella, Sherif Adekunleen
dc.contributor.authorYounis, Mohammad I.en
dc.date.accessioned2018-02-22T10:34:40Z-
dc.date.available2018-02-22T10:34:40Z-
dc.date.issued2018-02-14en
dc.identifier.citationAlcheikh N, Tella SA, Younis MI (2018) Adjustable static and dynamic actuation of clamped-guided beams using electrothermal axial loads. Sensors and Actuators A: Physical 273: 19–29. Available: http://dx.doi.org/10.1016/j.sna.2018.01.066.en
dc.identifier.issn0924-4247en
dc.identifier.doi10.1016/j.sna.2018.01.066en
dc.identifier.urihttp://hdl.handle.net/10754/627162-
dc.description.abstractThe paper presents adjustable static and dynamic actuations of in-plane clamped-guided beams. The structures, of variable stiffness, can be used as highly tunable resonators and actuators. Axial loads are applied through electrothermal U-shaped and flexure beams actuators stacked near the edges of curved (arch) beams. The electrothermal actuators can be configurred in various ways to adjust as desired the mechanical stiffness of the structures; thereby controlling their deformation stroke as actuators and their operating resonance frequency as resonators. The experimental and finite element results demonstrate the flexibility of the designs in terms of static displacements and resonance frequencies of the first and second symmetric modes of the arches. The results show considerable increase in the resonance frequency and deflection of the microbeam upon changing end actuation conditions, which can be promising for low voltage actuation and tunable resonators applications, such as filters and memory devices. As case studies of potential device configurations of the proposed design, we demonstrate eight possibilities of achieving new static and dynamic behaviors, which produce various resonance frequencies and static displacement curves. The ability to actively shift the entire frequency response curve of a device is desirable for several applications to compensate for in-use anchor degradations and deformations. As an example, we experimentally demonstrate using the device as a resonant logic gate, with active resonance tuning, showing fundamental 2-bit logic functions, such as AND,XOR, and NOR.en
dc.description.sponsorshipThis publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) office of sponsored research OSR under Award No. OSR-2016-CRG5-3001.en
dc.publisherElsevier BVen
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0924424717317764en
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Sensors and Actuators A: Physical. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Sensors and Actuators A: Physical, 14 February 2018. DOI: 10.1016/j.sna.2018.01.066. © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.titleAdjustable static and dynamic actuation of clamped-guided beams using electrothermal axial loadsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMechanical Engineering Programen
dc.identifier.journalSensors and Actuators A: Physicalen
dc.eprint.versionPost-printen
dc.contributor.institutionDepartment of Mechanical Engineering, State University of New York, Binghamton, NY 13902, USAen
kaust.authorAlcheikh, Nouhaen
kaust.authorTella, Sherif Adekunleen
kaust.authorYounis, Mohammad I.en
kaust.grant.numberOSR-2016-CRG5-3001en
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