Coupling analysis of screwing motion of double-walled carbon nanotubes
Date
2019
Authors
Chen, Liang
Jiang, Wu-Gui
Zou, Hang
Feng, Xi-Qiao
Qin, Qinghua
Li, Xin
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
As the inner tube is excited from a rotation frequency at a separation distance, the inner tube will generate a reciprocating screwing motion. In this work, this coupling effect is investigated theoretically. The van der Waals force between two carbon nanotubes is expressed in a simple form of Fourier series so that the coupled nonlinear differential equations can be quickly solved. The proposed approach is thousands of times faster than the traditional method, which makes it possible to fit the coupling coefficients. As a result, expressions for the coefficients of the coupled equations are given. It is observed that a larger initial rotation frequency excitation will result in a higher dissipation rate of the axial oscillation, and vice versa.
Description
Keywords
Double-walled carbon nanotubes, Screwing motion, Coupling analysis, Fourier transform, Genetic algorithm
Citation
Collections
Source
Physics Letters A
Type
Journal article
Book Title
Entity type
Access Statement
License Rights
Restricted until
2099-12-31
Downloads
File
Description