Applications of Molecular Dynamics Simulations in two dimensional Frenkel-Kontorovamodel

DOI

10.2991/meic-14.2014.133How to use a DOI?

Keywords

molecular dynamics; Frenkel-Kontorova model; dc force; Runge-Kutta algorithm; superconducting devise

Abstract

Based on the molecular dynamics simulation, this manuscript is dedicated to the studies of dynamical behavior in the two dimensional Frenkel-Kontorova model with triangular symmetric periodic substrate when a dc drive and a circular ac driven force are applied. The numerical results show that the velocity of system increases in quantized steps with step weights of =n (0,1,2,3…). This ensures the reliability and accuracy of the scheme of our molecular dynamics code. As an important application, it is also obtained from our numerical results that the critical depinning force (known as the static frictional force in the tribology) can be strongly affected by the direction of the dc force. The obtained results show that the static frictional force is minimum value for and . It are also noted that the curves are symmetric about .

Copyright

© 2014, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhen Ren
AU  - Zhilong Wang
AU  - Yueling Chen
AU  - Xiaofang Wang
AU  - Xingmin Wei
AU  - Xianxia Song
PY  - 2014/11
DA  - 2014/11
TI  - Applications of Molecular Dynamics Simulations in two dimensional Frenkel-Kontorovamodel
BT  - Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering
PB  - Atlantis Press
SP  - 592
EP  - 595
SN  - 2352-5401
UR  - https://doi.org/10.2991/meic-14.2014.133
DO  - 10.2991/meic-14.2014.133
ID  - Ren2014/11
ER  -