期刊
INTERNATIONAL JOURNAL OF NON-LINEAR MECHANICS
卷 95, 期 -, 页码 209-215出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijnonlinmec.2017.06.009
关键词
Multistability; MEMS/NEMS; Continuation; Bifurcation; Uncertainty quantification
类别
资金
- National Science Foundation Graduate Research Fellowship [DGE-1333468]
- Ross Fellowship at Purdue University
MEMS/NEMS switches are used in a variety of portable electronics and RF telecommunications systems. MEMS/NEMS switches are ideally bi-stable, with one ON and one OFF state and a reliable switching between the two induced by electrical actuation. Presented herein is an exploration into non-ideal behavior, i.e. tri-stability, and parametric sensitivity of a generalization of cantilever MEMS/NEMS switches. The representative system model employs multiphysics features based on Euler Bernoulli beam theory, parallel plate capacitance for electrostatics, and a Leonard-Jones form of surface interaction. The geometry, material properties, and surface features of the device are condensed into just a few dimensionless quantities, creating a parameter space of low enough dimensionality to provide accessible representations of all system equilibria within physically relevant ranges. Analysis of this system model offers insight regarding conditions necessary for bi- and tri-stability in such systems, which are crucial for informing studies on switching dynamics and various device performance metrics. Published by Elsevier Ltd.
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