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Al-Ghamdi, M. S., Khater, M. E., Abdel-Rahman, E. M. and Nepomuceno, E. G. (2020) Quasi-Static Pull-in: an Instability in Electrostatic Actuators. Scientific Reports, 10 (1). pp. 1-8. ISSN 2045-2322
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Abstract
We identify a new instability in electrostatic actuators dubbed quasi-static pull-in. We report
experimental evidence of the instability and study its characteristics in two types of micro actuators
operating in ambient air. We found that the underlying mechanism is a fast-slow dynamic interaction
between slowly-varying electrostatic excitation and fast resonator response that instigate large non-resonant oscillatory orbits and eventually disappears in a global Shilnikov bifurcation. Based on these
findings, we formulate and present a new taxonomy of pull-in instabilities in electrostatic actuators.
| Item Type: | Article |
|---|---|
| Keywords: | Quasi-Static; Pull-in; Instability; Electrostatic Actuators; |
| Academic Unit: | Faculty of Science and Engineering > Electronic Engineering Faculty of Science and Engineering > Research Institutes > Hamilton Institute |
| Item ID: | 16705 |
| Identification Number: | 10.1038/s41598-020-61534-w |
| Depositing User: | Erivelton Nepomuceno |
| Date Deposited: | 15 Nov 2022 16:20 |
| Journal or Publication Title: | Scientific Reports |
| Publisher: | Nature Publishing Group |
| Refereed: | Yes |
| Related URLs: | |
| URI: | https://mu.eprints-hosting.org/id/eprint/16705 |
| Use Licence: | This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here |
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