scholarly journals Nonlinear damping in mechanical resonators made from carbon nanotubes and graphene

2011 ◽  
Vol 6 (6) ◽  
pp. 339-342 ◽  
Author(s):  
A. Eichler ◽  
J. Moser ◽  
J. Chaste ◽  
M. Zdrojek ◽  
I. Wilson-Rae ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Nonlinear Damping ◽  
Mechanical Resonators

scholarly journals Carbon Nanotubes as Ultrahigh Quality Factor Mechanical Resonators

Nano Letters ◽  
2009 ◽  
Vol 9 (7) ◽  
pp. 2547-2552 ◽  
Author(s):  
Andreas K. Hüttel ◽  
Gary A. Steele ◽  
Benoit Witkamp ◽  
Menno Poot ◽  
Leo P. Kouwenhoven ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Quality Factor ◽  
Mechanical Resonators

Coiled Carbon Nanotubes as Self-Sensing Mechanical Resonators

Nano Letters ◽  
2004 ◽  
Vol 4 (9) ◽  
pp. 1775-1779 ◽  
Author(s):  
Alexander Volodin ◽  
Dieter Buntinx ◽  
Markus Ahlskog ◽  
Antonio Fonseca ◽  
Janosh B. Nagy ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Mechanical Resonators

Analytical Studies of SWCNTs Embedded in Nonlinear Viscous Elastic Media and the Chaotic Effect of Its Various Parameters

2021 ◽  
Vol 31 (06) ◽  
pp. 2150081
Author(s):  
Monika Tyagi ◽  
Ayub Khan ◽  
Mushahid Husain ◽  
Samina Husain
Keyword(s):  
Carbon Nanotubes ◽  
Chaotic Behavior ◽  
Nonlinear Damping ◽  
Single Wall Carbon Nanotubes ◽  
Computational Techniques ◽  
Surface Of Section ◽  
Analytical Studies ◽  
Kbm Method ◽  
Controlling Elements ◽  
External Forces

The analytical studies and chaotic behavior of forced vibration on Single-wall Carbon Nanotubes (SWCNTs) embedded in nonlinear viscous elastic medium subjected to parametric excitation are investigated. The analytical solution of the amplitude of nonlinear vibration is studied using Krylov–Bogoliubov–Mitropolsky (KBM) method. Both resonant and nonresonant cases are deduced. The computational techniques are used to draw graphs of time series, phase plot and Poincaré surface of section to analyze the chaotic behavior of the system considered. The plots are drawn for various values of different parameters like linear damping, nonlinear damping and amplitude of external forces in the considered model of SWCNTs. This work could be helpful in differentiating various elements of Carbon Nanotubes (CNTs) into the chaotic elements and controlling elements. The chaotic elements contributes to increase in the aging of CNTs while controlling elements can be used to control the irregular behavior of CNTs.

AC modeling of mechanical resonators based on carbon nanotubes

2010 ◽  
Author(s):  
Leif Bagge ◽  
Larry Epp ◽  
Abdur R. Kaul ◽  
Anupama B. Kaul
Keyword(s):  
Carbon Nanotubes ◽  
Mechanical Resonators

Structural phenomena in the growth of carbon nanotubes

1993 ◽  
Vol 51 ◽  
pp. 750-751
Author(s):  
Jun Jiao
Keyword(s):  
Carbon Nanotubes ◽  
Growth Mechanism ◽  
Carbonaceous Material ◽  
Cluster Growth ◽  
Structural Elements ◽  
Rich Variety ◽  
Different Shapes ◽  
Point To Point

HREM studies of the carbonaceous material deposited on the cathode of a Huffman-Krätschmer arc reactor have shown a rich variety of multiple-walled nano-clusters of different shapes and forms. The preparation of the samples, as well as the variety of cluster shapes, including triangular, rhombohedral and pentagonal projections, are described elsewhere.The close registry imposed on the nanotubes, focuses attention on the cluster growth mechanism. The strict parallelism in the graphitic separation of the tube walls is maintained through changes of form and size, often leading to 180° turns, and accommodating neighboring clusters and defects. Iijima et. al. have proposed a growth scheme in terms of pentagonal and heptagonal defects and their combinations in a hexagonal graphitic matrix, the first bending the surface inward, and the second outward. We report here HREM observations that support Iijima’s suggestions, and add some new features that refine the interpretation of the growth mechanism. The structural elements of our observations are briefly summarized in the following four micrographs, taken in a Hitachi H-8100 TEM operating at an accelerating voltage of 200 kV and with a point-to-point resolution of 0.20 nm.

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