微机械纳米接触原子层数的连续方法研究

为解决微机械中“微碰撞”、“纳米接触”问题 ,建立了纳米接触的刚性球 -面模型。根据 Ham aker三个假设和L ennard- Jones势 ,利用连续方法推导出球同平面第一和第 N层原子之间的作用力表达式 ,仿真出粘着力同原子层之间的关系 ,得出影响纳米接触的主要原子为接触区域少数几层原子的结论 ,从而为纳米接触、纳米摩擦的进一步研究提供理论基础

Research of Nanocontact Continuity Method for Micromechanism

Based on three Hamaker hypotheses and Lennard Jones potential, the model of rigid sphere panel nano contact is found in this paper in order to solve the "microcollision" and "nanocontact" problems in micromechanism, followed by the adhesion equations between the sphere and the first layer atom or the N layer atom of the panel by continuity method. we draw the conclusion that the principal atoms affecting nanocontact mechanics are the handful layers near the contact zone.