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      Pull-in behavior of a bio-mass sensor based on an electrostatically actuated cantilevered CNT with consideration of rippling effect

      Journal of Applied and Computational Mechanics

      Shahid Chamran University of Ahvaz

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          Abstract

          This paper studies pull-in behavior of a bio-mass sensor with a cantilevered CNT actuated electrostatically considering rippling deformation. Although this phenomenon can change the behavior of CNT remarkably, its effect on the performance of a CNT-based mass sensor is not investigated yet. This investigation is based on modified Euler-Bernoulli beam theory and rippling effect is entered the equations related to cantilevered CNT-bases sensor. Impact of other properties like different masses, mechanical damping and intermolecular force is studied in this paper too. According to the results obtained from this study rippling deformation decrease the pull-in voltage and tip deflection of CNT while it enhances the pull-in time. Results related to the impact of other mentioned properties are presented too. In order to verify the soundness of this study, the obtained results are compared with other pull-in sensor equations in literature and “molecular dynamics”, and an excellent agreement is seen in both.

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          Author and article information

          Journal
          Journal of Applied and Computational Mechanics
          Shahid Chamran University of Ahvaz
          01 July 2015
          : 1
          : 4
          b0f954a506a6438cbe3c5a3819550a00

          This work is licensed under a Creative Commons Attribution Non Commercial 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/legalcode

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          Self URI (journal page): http://jacm.scu.ac.ir/
          Categories
          Mechanics of engineering. Applied mechanics
          TA349-359

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