A torsional parametric oscillator based on carbon nanotubes

Byeong-Woo Jeong; Sinnott, Susan B.
August 2009
Applied Physics Letters;8/24/2009, Vol. 95 Issue 8, p083112
Academic Journal
Parametric oscillations are observed in torsional electromechanical oscillators based on carbon nanotubes via molecular dynamics simulations. The stretch of nanotube torsion springs due to the vertical translational-electrostatic force acting on the paddle makes possible the parametric oscillations. The electrostatic force can provide control over nanotube stretching that allows it to parametrically modulate the torsional spring constant at twice the resonance frequency. This reveals potential building blocks for a variety of applications of the devices.


Related Articles

  • Solvent-based preferential deposition of functionalized carbon nanotubes on substrates. Mortuza, S. M.; Banerjee, Soumik // Journal of Applied Physics;Aug2013, Vol. 114 Issue 7, p074301 

    Solution-processed deposition of carbon nanotubes (CNTs) provides a cost-effective means to synthesize uniform vertically or horizontally aligned nanostructures on top of substrates. The efficacy of deposition depends on the solubility of CNTs in the solvent as well as the ordering of nanotubes...

  • Carbon nanotube initiated formation of carbon nanoscrolls. Zhao Zhang; Teng Li // Applied Physics Letters;8/23/2010, Vol. 97 Issue 8, p081909 

    The unique topology and exceptional properties of carbon nanoscrolls (CNSs) have inspired unconventional nanodevice concepts, yet the fabrication of CNSs remains rather challenging. Using molecular dynamics simulations, we demonstrate the spontaneous formation of a CNS from graphene on a...

  • Mathematical modelling for nanotube bundle oscillators. Thamwattana, Ngamta; Cox, Barry J.; Hill, James M. // AIP Conference Proceedings;7/23/2009, Vol. 1151 Issue 1, p177 

    This paper investigates the mechanics of a gigahertz oscillator comprising a nanotube oscillating within the centre of a uniform concentric ring or bundle of nanotubes. The study is also extended to the oscillation of a fullerene inside a nanotube bundle. In particular, certain...

  • Nanofluidics: Phonon modes for faster flow. Bocquet, Lydéric; Netz, Roland R. // Nature Nanotechnology;Aug2015, Vol. 10 Issue 8, p657 

    The article looks at a research by researchers François Grey and Quanshui Zheng published in the periodical showed the impact of the molecular dynamics (MD) simulations on the flow of water through carbon nanotubes which can be can be enhanced by exciting the phonon modes of the nanotube. It...

  • Influence of Inter-tube Connections on the Stress-Strain Behavior of Nanotube-Polymer Composites: Molecular Dynamics. Jianwei Zhang; Dazhi Jiang; Huaxin Peng; Chunqi Wang // World Academy of Science, Engineering & Technology;2012, Issue 66, p453 

    Stress-strain curve of inter-tube connected carbon nanotube (CNT) reinforced polymer composite under axial loading generated from molecular dynamics simulation is presented. Comparison of the response to axial mechanical loading between this composite system with composite systems reinforced by...

  • Transport of polar and non-polar solvents through a carbon nanotube. Chopra, Manish; Phatak, Rohan; Choudhury, N. // AIP Conference Proceedings;Feb2013, Vol. 1512 Issue 1, p562 

    Transport of water through narrow pores is important in chemistry, biology and material science. In this work, we employ atomistic molecular dynamics (MD) simulations to carry out a comparative study of the transport of a polar and a non-polar solvent through a carbon nanotube (CNT). The flow of...

  • Mechanical interaction between single-walled carbon nanotubes during the formation of a bundle. Vodenitcharova, Tania; Mylvaganam, Kausala; Liang Chi Zhang // Journal of Materials Science;Jul2007, Vol. 42 Issue 13, p4935 

    This paper investigates the intertubular van der Waals interactions that produce the initial cross sectional distortion of single-walled carbon nanotubes during a bundle formation. By combining the analysis of molecular dynamics with the continuum mechanics, the distributions of the van der...

  • Tuning the torsional properties of carbon nanotube systems with axial prestress. Byeong-Woo Jeong; Jang-Keun Lim; Sinnott, Susan B. // Applied Physics Letters;6/23/2008, Vol. 92 Issue 25, p253114 

    The effects of tensile or compressive prestress on the torsional responses of carbon nanotubes are examined using classical molecular dynamics simulations. Prestressing the nanotubes is predicted to significantly change their critical torsional moment and stiffness. This is therefore an approach...

  • Elastic properites of blocks in the low-frequency component of waves in A 2D medium. Saraikin, V. // Journal of Mining Science;May2009, Vol. 45 Issue 3, p207 

    Based on the analysis of a 2D model composed of rectangular blocks with deformable interlayers, it is found that the earlier model of perfectly rigid blocks is only applicable if interlayers are low rigid and blocks are rigid. Otherwise, the descriptions of dynamic disturbances in such media...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics