A nano continuous variable transmission system from nanotubes

Cai, K, Shi, J, Xie, Y and Qin, Q 2018, 'A nano continuous variable transmission system from nanotubes', Nanotechnology, vol. 29, no. 7, pp. 1-8.

Document type: Journal Article
Collection: Journal Articles

Title A nano continuous variable transmission system from nanotubes
Author(s) Cai, K
Shi, J
Xie, Y
Qin, Q
Year 2018
Journal name Nanotechnology
Volume number 29
Issue number 7
Start page 1
End page 8
Total pages 8
Publisher Institute of Physics Publishing
Abstract A nano continuous variable transmission (nano-CVT) system is proposed by means of carbon nanotubes (CNTs). The dynamic behavior of the CNT-based nanosystem is assessed using molecular dynamics simulations. The system contains a rotary CNT-motor and a CNT-bearing. The tube axes of the nanomotor and the rotor in the bearing are laid in parallel, and the distance between them is known as the eccentricity of the rotor with a diameter of d. By changing the eccentricity (e) of the rotor from 0 to d, some interesting rotation transmission phenomena are discovered, whose procedures can be used to design various nanodevices. This might include the failure of rotation transmission- i.e. the rotor has no rotation-when e >= d at an extremely low temperature, or when the edges of the two tubes are orthogonal at their intersections in any condition. This hints that the state of the nanosystem can be used as an on/off switch or breaker. For a system with e = d and a high temperature, the rotor rotates in the reverse direction of the motor. This means that the output signal (rotation) is the reverse of the input signal. When changing the eccentricity from 0 to d continuously, the output signal gradually decreases from a positive value to a negative value; as a result a nano-CVT system is obtained.
Subject Atomic, Molecular, Nuclear, Particle and Plasma Physics not elsewhere classified
Civil Engineering not elsewhere classified
Keyword(s) Nanomachine
Carbon nanotube
Continuous variable transmission
DOI - identifier 10.1088/1361-6528/aaa286
Copyright notice © 2018 IOP Publishing Ltd
ISSN 0957-4484
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