Spatial patterns of phase-matched phonon modes resonated in velocity-dependent threshold phenomenon characterizing wearless nanofriction explored by molecular dynamics method
International Journal on Computational Science & Applications
AIRCC Publishing Corporation
A threshold phenomenon characterizing ensemble-averaged dependence of wearless-nanofrictional force between nonmetallic solids on sliding velocity under the steady condition was investigated in terms of molecular dynamics. The forced vibration triggering dramatic increase in the rate of frictional-heat generation at sliding speeds above the threshold was successfully extracted from random thermal motion of atoms near the sliding interface. In relation to a hypothesis, some features of the forced vibration are discussed with respect to its spatial pattern.
NEMS Nanotribology Complex System Molecular Dynamics Simulation