Quasi-Static Pull-in: an Instability in Electrostatic Actuators [PDF]
Scientific Reports, 2020 AbstractWe 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
Al-Ghamdi, M. S. +3 more
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Jump and Pull-in Instability of a MEMS Gyroscope Vibrating System
Micromachines, 2023 Jump and pull-in instability are common nonlinear dynamic behaviors leading to the loss of the performance reliability and structural safety of electrostatic micro gyroscopes.
Yijun Zhu, Huilin Shang
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Nanoelectromechanical relay without pull-in instability for high-temperature non-volatile memory [PDF]
Nature Communications, 2020 Designing reliable, scalable and energy efficient data storage systems that can operate in extreme temperatures, remains a challenge. Here, the authors demonstrate a nanoelectromechanical relay that does not exhibit pull-in instability for reliable ...
Sunil Rana +6 more
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Alexandria Engineering Journal, 2020 A significant phenomenon associated with devices used in nano/microelectromechanical systems (N/MEMS) is the dynamic pull-in instability. The basic theme of this manuscript is to study the nonlinear oscillation and dynamic pull-in instability in an N ...
Naveed Anjum, Ji-Huan He
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Early Postural Instability in Parkinson’s Disease: A Biomechanical Analysis of the Pull Test [PDF]
Parkinson's Disease, 2019 Postural instability in Parkinson’s disease (PD) is commonly assessed by the pull test. This clinical test may be biased by the variability of the pull force applied.
Javier Ricardo Pérez-Sánchez +1 more
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Rontgen's electrode-free elastomer actuators without electromechanical pull-in instability. [PDF]
Proc Natl Acad Sci U S A, 2010 Electrical actuators made from films of dielectric elastomers coated on both sides with stretchable electrodes may potentially be applied in microrobotics, tactile and haptic interfaces, as well as in adaptive optical elements. Such actuators with compliant electrodes are sensitive to the pull-in electromechanical instability, limiting operational ...
Keplinger C +3 more
europepmc +4 more sources
Pull-in Phenomenon in the Electrostatically Micro-switch Suspended between Two Conductive Plates using the Artificial Neural Network [PDF]
Journal of Applied and Computational Mechanics, 2022 Artificial Neural Networks (ANN) are designed to evaluate the pull-in voltage of MEMS switches. The mathematical model of a micro-switch subjected to electrostatic force is preliminarily illustrated to get the relevant equations providing static ...
Mortaza Aliasghary +2 more
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Pull-in Instability Analysis of a Nanocantilever Based on the Two-Phase Nonlocal Theory of Elasticity [PDF]
Journal of Applied and Computational Mechanics, 2022 This paper deals with the pull-in instability of cantilever nano-switches subjected to electrostatic and intermolecular forces in the framework of the two-phase nonlocal theory of elasticity.
Gennadi Mikhasev +2 more
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A mathematical control for the pseudo-pull-in stability arising in a micro-electromechanical system
Journal of Low Frequency Noise, Vibration and Active Control, 2023 A micro-electromechanical system’s reliability depends strongly upon its periodic motion; however, the pull-in instability might arise when the applied voltage is high enough.
Qian Yang
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A fractal micro-electromechanical system and its pull-in stability
Journal of Low Frequency Noise, Vibration and Active Control, 2021 Pull-in instability occurs in a micro-electromechanical system, and it greatly hinders its normal operation. A fractal modification is suggested to make the system stable in all operation period. A fractal model is established using a fractal derivative,
Dan Tian, Chun-Hui He
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