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Analysis on mass sensing characteristics of SWCNT-based nano-mechanical resonators using continuum mechanics based finite element analysis

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Abstract

In this study, we used the Finite element method (FEM) based on continuum mechanics, instead of molecular dynamics, to design and analyze an ultra-small mass nanomechanical sensor using Single wall carbon nanotube (SWCNT). We tested the validity of the FEM modeling technique based on continuum mechanics by comparing its analysis results with those of molecular dynamics modeling. After developing an elastic continuum shell model having an effective thickness, Young’s modulus, and Poisson’s ratio, we proved the superiority of the implemented analysis technique by comparing its resonance frequency with that of the molecular dynamics model. Additionally, using the developed model, we established various design parameters for a resonator and observed the parameter-dependent changes in frequency characteristics of the resonator.

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Authors and Affiliations

  1. Graduate School of Mechanical Engineering, Konkuk University, Seoul, 143-701, Korea

    Seung-Hyun Cho

  2. Department of Materials Chemistry and Engineering, Konkuk University, Seoul, 143-701, Korea

    Myung-Seok Choi

  3. Dep. of Mechanical Design and Mechatronics, Hanyang University, Seoul, 133-791, Korea

    Dong-Keun Kang

  4. Multi-phenomena CFD Research Center, Sogang University, Seoul, 121-742, Korea

    Jung Hee Lee

  5. School of Mechanical Engineering, Konkuk University, Seoul, 143-701, Korea

    Chang-Wan Kim

Authors
  1. Seung-Hyun Cho
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  2. Myung-Seok Choi
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  3. Dong-Keun Kang
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  4. Jung Hee Lee
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  5. Chang-Wan Kim
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Corresponding authors

Correspondence to Jung Hee Lee or Chang-Wan Kim.

Additional information

Recommended by Associate Editor Heung Soo Kim

Chang-Wan Kim received a Ph.D. in NVH analysis by newly developing Automated Multilevel Substructuring (AMLS) method from the University of Texas at Austin. AMLS is now being used in all automobile industries for NVH analysis. He previously worked in NASTRAN developer in USA and RecurDyn in Korea. He has over 80 paper publications along with several invited papers and presentations. Now, his research is specialized in multiphysics analysis by integrating CFD-MBD-FEM technology.

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Cho, SH., Choi, MS., Kang, DK. et al. Analysis on mass sensing characteristics of SWCNT-based nano-mechanical resonators using continuum mechanics based finite element analysis. J Mech Sci Technol 29, 4801–4806 (2015). https://doi.org/10.1007/s12206-015-1027-8

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  • DOI: https://doi.org/10.1007/s12206-015-1027-8

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