Bow actuator: Low voltage switching in electrostatically actuated bistable beams

Lior Medina*, Rivka Gilat, Slava Krylov

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Curved bistable beams subjected to transverse loading may exhibit latching, namely remain in their buckled state under zero force. Under such circumstances, an opposite force is required for snapping-back (release) of the beam to its initial configuration. For an electrostatically actuated beam, two electrodes located at either side of the beam may therefore be required for bidirectional actuation. In this study, a new snapping and release procedures, are considered. The approach involves the preloading of the beam using an electrostatic force in the direction opposite to the beam desired movement, followed by a sudden release of the voltage. We show, by means of a reduced order (RO) model, resulting from the Galerkin decomposition, that such an actuation paradigm can not only be used to release a beam from its latched position, but can also create a snap-through response at a significantly low voltage.

Original languageEnglish
Title of host publication23rd Design for Manufacturing and the Life Cycle Conference; 12th International Conference on Micro- and Nanosystems
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791851791
DOIs
StatePublished - 2018
EventASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2018 - Quebec City, Canada
Duration: 26 Aug 201829 Aug 2018

Publication series

NameProceedings of the ASME Design Engineering Technical Conference
Volume4

Conference

ConferenceASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2018
Country/TerritoryCanada
CityQuebec City
Period26/08/1829/08/18

Funding

FundersFunder number
Israel Ministry of Science, Technology & Space
Israel Science Foundation1272/16

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