文献类型：会议论文

英文题名：Applications of Molecular Dynamics Simulations in two Dimensional Frenkel-Kontorova Model

作者：Ren, Zhen[1,3];Wang, Zhilong[2];Chen, Yueling[2];Wang, Xiaofang[2];Wei, Xingmin;Song, Xianxia[1,3]

第一作者：任真

通信作者：Ren, Z[1]

机构：[1]Gansu Univ Tradit Chinese Med, Informat Engn Sch, Lanzhou, Peoples R China;[2]Gansu Univ Tradit Chinese Med, Sch Sci, Lanzhou, Peoples R China;[3]Gansu Univ Tradit Chinese Med, Informat Engn Sch, Lanzhou, Peoples R China

第一机构：甘肃中医药大学信息工程学院（教育技术中心）

通信机构：[1]corresponding author), Gansu Univ Tradit Chinese Med, Informat Engn Sch, Lanzhou, Peoples R China.|[10735b4fd93d6e0fa5aa4]甘肃中医药大学信息工程学院（教育技术中心）;[10735]甘肃中医药大学;

会议论文集：International Conference on Mechatronics, Electronic, Industrial and Control Engineering (MEIC)

会议日期：NOV 17-19, 2014

会议地点：Shenyang, PEOPLES R CHINA

语种：英文

外文关键词：component; molecular dynamics; Frenkel-Kontorova model; dc force; Runge-Kutta algorithm; superconducting devise

年份：2014

摘要：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 < V >=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 alpha=0 degrees and 60 degrees. It are also noted that the curves are symmetric about alpha=30 degrees.