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Indexed by:会议论文

Date of Publication:2003-11-28

Included Journals:EI

Volume:258-259

Page Number:216-220

Abstract:Molecular dynamics (MD) simulation is an effective microscopic approach to analyze the mechanism of nanometric machining from atomistic viewpoint. The basic idea of MD simulation is that an ensemble containing enormous particles is established to simulate the micro phenomena. For the ensemble following classical Newtonian mechanics law, the forces between any pair of particles can be derived from the potential functions. The motion equations of particles can be established based on classical Newtonian mechanics and the trajectory of each particle in phase space can be obtained by solving the Newton's equation. And the macroscopic dynamic/static parameters of the ensemble can be acquired based on statistic physics. To give a deep understanding of MD simulation, the typical interatomic potentials, the basic motion equations and the widely used algorithms are introduced in this paper and the applications of MD simulation in nanometric machining are also illustrated. Through comparing the studies on MD simulation in machining conducted by many researchers at home and abroad, the advantages and limitations of MD technique in practical applications of nanometric machining are presented as well.