Results 241 to 250 of about 336,243 (295)
Management of a first-time shoulder dislocation in the athlete: From ER to OR. [PDF]
Bull Hosp Jt Dis (2013)Kirschner N +3 more
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Electrostatic pull-in instability for tweezer architectures [PDF]
Meccanica, 2022 The authors investigate the static pull-in instability of electrostatically actuated tweezers with tubular electrodes. It is well known that an accurate analytical prediction of pull-in parameters is fundamental for the correct determination of the operation voltage and power dissipation in the system, in addition to the limitations on power ...
G. Bianchi +3 more
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Effects of Casimir force on pull-in instability in micromembranes
Europhysics Letters (EPL), 2007 We analyze pull-in instability of electrostatically actuated microelectromechanical systems, and study changes in pull-in parameters due to the Casimir effect. When the size of the device is reduced, the magnitude of the Casimir force is comparable with that of the Coulomb force and it significantly alters pull-in parameters.
R. C Batra, M Porfiri, D Spinello
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Dynamic Pull-In Instability of Initially Curved Microbeams
Volume 12: Micro and Nano Systems, Parts A and B, 2009 In this study, dynamic pull-in instability and snap-through buckling of initially curved microbeams are investigated. The microbeams are actuated by suddenly applied electrostatic force. A finite element model is developed to discretize the governing equations and Newmark time discretization is employed to solve the discretized equations.
M. Moghimi Zand +2 more
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Size-dependent pull-in instability of torsional nano-actuator
Physica Scripta, 2013 It is well established that the mechanical behavior of ultra-small elements is size-dependent. In this paper, strain gradient continuum theory is applied for modeling the size-dependent pull-in instability of torsional nano-actuator. An actuator with a general hexagonal shape main plate is considered.
Y Tadi Beni, M Abadyan
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Effect of flexoelectricity on the Pull-in instability of beam-type NEMS
Engineering Analysis With Boundary Elements, 2023Yaghoub Tadi Beni +2 more
exaly +2 more sources
Nonlinear pull-in instability of suspended graphene-based sensors
EPL (Europhysics Letters), 2019 Applying an external electric field on a graphene surface is an important way to improve the molecular adsorption capability of graphene, thus pull-in instability of suspended graphene sensors becomes a critical issue.
Kai-Ming Hu +4 more
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On pull-in instabilities of microcantilevers
International Journal of Engineering Science, 2015Abstract In this paper the static deflection and pull-in instability of electrostatically actuated microcantilevers is investigated based on the strain gradient theory. The equation of motion and boundary conditions are derived using Hamilton’s principle and solved numerically.
M. Rahaeifard, M.T. Ahmadian
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