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Title: A stable high-speed rotational transmission system based on nanotubes

A stable rotational transmission system is designed with a single-walled carbon nanotube (SWCNT)-based motor and double-walled carbon nanotubes (DWCNTs)-based bearing. The system response is investigated using molecular dynamics (MD) simulation. It is found that the rotating motor can actuate the rotation of the inner tube in bearing because of the attraction between the two adjacent coaxial ends of motor and rotor (the inner tube in bearing). To have a stable nanostructure, each carbon atom on the adjacent ends of motor and rotor is bonded with a hydrogen atom. To obtain a stable high-speed rotational transmission system, both an armchair and a zigzag model are used in MD simulation. In each model, the motor with different diameters and rotational speeds is employed to examine the rotational transmission of corresponding DWCNTs. It is demonstrated that the long range van der Waals interaction between the adjacent ends of motor and rotor leads to a stable configuration of the adjacent ends, and further leads to a stable rotation of rotor when driven by a high-speed motor. As compared with the armchair model, the rotor in the zigzag model could reach a stable rotation mode much easier.
Authors:
 [1] ;  [2] ; ;  [1] ;  [3] ;  [4] ;  [5]
  1. College of Water Resources and Architectural Engineering, Northwest A and F University, Yangling 712100 (China)
  2. (China)
  3. State Key Laboratory of Structural Analysis for Industrial Equipment, Department of Engineering Mechanics, Faculty of Vehicle Engineering and Mechanics, Dalian University of Technology, Dalian 116024 (China)
  4. (United States)
  5. Department of Civil and Environmental Engineering, University of Missouri, Columbia, Missouri 65211-2200 (United States)
Publication Date:
OSTI Identifier:
22399100
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 2; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 77 NANOSCIENCE AND NANOTECHNOLOGY; ATOMS; BEARINGS; CARBON NANOTUBES; COMPARATIVE EVALUATIONS; HYDROGEN; MOLECULAR DYNAMICS METHOD; ROTATION; ROTORS; TRANSMISSION; VAN DER WAALS FORCES; VELOCITY