Results 11 to 20 of about 336,243 (295)
PULL-DOWN INSTABILITY OF THE QUADRATIC NONLINEAR OSCILLATORS
Facta Universitatis, Series: Mechanical Engineering, 2023 A nonlinear vibration system, over a span of convincing periodic motion, might break out abruptly a catastrophic instability, but the lack of a theoretical tool has obscured the prediction of the outbreak. This paper deploys the amplitude-frequency formulation for nonlinear oscillators to reveal the critically important mechanism of the pseudo-periodic
Ji-Huan He +3 more
openaire +3 more sources
Pull-in Instability of Micro-switch Actuators: Model Review [PDF]
International Journal of Nonlinear Sciences and Numerical Simulation, 2008 The existing three widely used pull-in theoretical models (i.e., one-dimensional lumped model, linear supposition model and planar model) are compared with the nonlinear beam mode in this paper by considering both cantilever and fixed-fixed type mi cro and nano-switches.
W.-H. Lin, Y.-P. Zhao
openaire +2 more sources
Modelling and Simulation in Engineering, 2016 A pseudo-spectral approximation is presented to solve the problem of pull-in instability in a cantilever micro-switch. As well known, pull-in instability arises when the acting force reaches a critical threshold beyond which equilibrium is no longer ...
P. Di Maida, G. Bianchi
doaj +2 more sources
DC dynamic pull-in instability of a dielectric elastomer balloon: an energy-based approach. [PDF]
Proc Math Phys Eng Sci, 2018 This paper reports an energy-based method for the dynamic pull-in instability analysis of a spherical dielectric elastomer (DE) balloon subjected to a quasi-statically applied inflation pressure and a Heaviside step voltage across the balloon wall.
Sharma AK, Arora N, Joglekar MM.
europepmc +2 more sources
Periodic solutions and the avoidance of pull‐in instability in nonautonomous microelectromechanical systems [PDF]
Mathematical Methods in the Applied Sciences, 2021 We study periodic solutions of a one‐degree of freedom microelectromechanical system (MEMS) with a parallel‐plate capacitor under T‐periodic electrostatic forcing. We obtain analytical results concerning the existence of T‐periodic solutions of the problem in the case of arbitrary nonlinear restoring force, as well as when the moving plate is attached ...
Shirali Kadyrov +4 more
openaire +5 more sources
Experimental characterization of pull-in parameters for an electrostatically actuated cantilever
Applications in Engineering Science, 2020 MEMS-NEMS applications extensively use micro-nano cantilever structures as actuation system, thanks to their intrinsically simple end efficient configuration.
A. Sorrentino +3 more
doaj +1 more source
Observation of Pull-In Instability in Graphene Membranes under Interfacial Forces [PDF]
Nano Letters, 2013 We present a unique experimental configuration that allows us to determine the interfacial forces on nearly parallel plates made from the thinnest possible mechanical structures, single and few layer graphene membranes. Our approach consists of using a pressure difference across a graphene membrane to bring the membrane to within ~ 10-20 nm above a ...
Liu, Xinghui +8 more
openaire +3 more sources
Fractal Pull-in Stability Theory for Microelectromechanical Systems
Frontiers in Physics, 2021 Pull-in instability was an important phenomenon in microelectromechanical systems (MEMS). In the past, MEMS were usually assumed to work in an ideal environment.
Dan Tian +3 more
doaj +1 more source
Common-Mode Stability Test and Design Guidelines for a Transformer-Based Push-Pull Power Amplifier
IEEE Access, 2020 We report design guidelines for a transformer-based push-pull power amplifier (PA) with a systematic stability test carried out in the complex frequency domain.
Van-Son Trinh, Jung-Dong Park
doaj +1 more source
Pull-in and wrinkling instabilities of electroactive dielectric actuators [PDF]
Journal of Physics D: Applied Physics, 2010 We propose a model to analyse the insurgence of pull-in and wrinkling failures in electroactive thin films. We take into consideration both cases of voltage and charge control, the role of pre-stretch and the size of activated regions, which are all crucial factors in technological applications of electroactive polymers (EAPs).
De Tommasi D +3 more
openaire +2 more sources