Effect of the centrifugal force on the electromechanical instability of U-shaped and double-sided sensors made of cylindrical nanowires

Keivani, Maryam. and Gheisari, R. and Kanani, Abolfazl. and Abadian, Naeime. and Mokhtari, Javad. and Rach, Randolph. and Abadyan, Mohamadreza. (2016) Effect of the centrifugal force on the electromechanical instability of U-shaped and double-sided sensors made of cylindrical nanowires. Journal of the Brazilian Society of Mechanical Sciences and Engineering, 38 (7). pp. 2129-2148.

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Abstract

The U-shaped and double-sided nanostructures are promising for developing miniature angular speed sensors. While the electromechanical instability of conventional beam-type nanostructures has been extensively addressed in the literature, few researchers have investigated this phenomenon in the double-sided and U-shaped sensors. In this regard, the present work demonstrates the effect of the centrifugal force on the pull-in performance of the double-sided and U-shaped sensors fabricated from cylindrical nanowire and operated in the van der Waals (vdW) regime. Based on the modified couple stress theory, the size-dependent constitutive equations of the sensors are derived. The governing equations are solved by two different approaches, i.e. the analytic Duan–Adomian method and the numerical differential quadrature method. The influences of the vdW and centrifugal forces, geometric parameters and the size phenomenon on the pull-in parameters are demonstrated.

Item Type: Article
Additional Information: cited By 2
Uncontrolled Keywords: Adomian decomposition method, Centrifugal force, Cylindrical nanowire, Double-sided sensor, U-shaped sensor, vdW force
Subjects: QT physiology
Divisions: Reserach Vice-Chancellar Department
Depositing User: Users 1 not found.
Date Deposited: 03 Jul 2017 08:23
Last Modified: 17 Feb 2018 06:16
URI: http://eprints.skums.ac.ir/id/eprint/719

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