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Damping Characteristics of Commensurate Double-Walled Carbon Nanotube Oscillators

Published online by Cambridge University Press:  01 February 2011

Y. Ooi  and
K. Shintani
Y. Ooi
Affiliation:
University of Electro-Communications, Department of Mechanical Engineering and Intelligent Systems, 1-5-1 Chofugaoka, Chofu, Tokyo, 182-8585, Japan, 81-42-443-5393, 81-42-484-3327
K. Shintani
Affiliation:
[email protected], University of Electro-Communications, Department of Mechanical Engineering and Intelligent Systems, 1-5-1 Chofugaoka, Chofu, Tokyo, 182-8585, Japan
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Abstract

The intertube oscillations of double-walled carbon nanotubes (DWNTs) are investigated using molecular-dynamics (MD) simulation. The inner and outer tubes of model DWNTs have chiral indices of armchair type. The intertube oscillations are damped owing to energy dissipation. The logarithmic decrements and frequencies of the damped oscillations are calculated. The results show that the logarithmic decrement increases with increasing the tube diameter and decreases with increasing the tube length.

Keywords

nanostructureCdevices
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1057: Symposium II – Nanotubes and Related Nanostructures , 2007 , 1057-II10-17
Copyright
Copyright © Materials Research Society 2008

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References

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