MURAL - Maynooth University Research Archive Library

    Quasi-Static Pull-in: an Instability in Electrostatic Actuators

    Al-Ghamdi, M. S. and Khater, M. E. and 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

    Download (3MB) | Preview

    Share your research

    Twitter Facebook LinkedIn GooglePlus Email more...

    Add this article to your Mendeley library


    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:
    Depositing User: Erivelton Nepomuceno
    Date Deposited: 15 Nov 2022 16:20
    Journal or Publication Title: Scientific Reports
    Publisher: Nature Publishing Group
    Refereed: Yes
    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

    Repository Staff Only(login required)

    View Item Item control page


    Downloads per month over past year

    Origin of downloads