Anaysis of cantilever NEMS in centrifugal-fluidic systems

Mohsen-Nia, Mohsen. and Abadian, Fateme. and Abadian, Naeime. and Mosaiebi Dehkordi, Keivan. and Keivani, Maryam. and Abadyan, Mohamadreza. (2016) Anaysis of cantilever NEMS in centrifugal-fluidic systems. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 30 (22).

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Abstract

Electromechanical nanocantilevers are promising for using as sensors/detectors in centrifugal-fluidic systems. For this application, the presence of angular speed and electrolyte environment should be considered in the theoretical analysis. Herein, the pull-in instability of the nanocantilever incorporating the effects of angular velocity and liquid media is investigated using a size-dependent continuum theory. Using d'Alembert principle, the angular speed is transformed into an equivalent centrifugal force. The electrochemical and dispersion forces are incorporated considering the corrections due to the presence of electrolyte media. Two different approaches, i.e., the Rayleigh-Ritz method (RRM) and proposing a lumped parameter model (LPM), were applied to analyze the system. The models are validated with the results presented in literature. Impacts of the angular velocity, electrolyte media, dispersion forces, and size effect on the instability characteristics of the nanocantilever are discussed.

Item Type: Article
Uncontrolled Keywords: Nanocantilever; centrifugal force; ionic liquid electrolyte; pull-in instability; Rayleigh-Ritz method; RRM; lumped parameter model
Subjects: QT physiology
Divisions: Reserach Vice-Chancellar Department
Depositing User: zahra bagheri .
Date Deposited: 16 Jul 2017 04:06
Last Modified: 17 Feb 2018 06:13
URI: http://eprints.skums.ac.ir/id/eprint/1141

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