在二维Frenkel-Kontorova模型中,为了更好地模拟真实的物理系统,采用高斯波的平移叠加作为基底,运用分子动力学模拟方法,讨论了有相互作用的原子平面在公度、不公度两种情况下,原子在无序基底上运动的摩擦机理,以及基底的无序对静摩擦力F_s的影响. In the two-dimensional Frenkel-Kontorova model, in order to better simulate the real physical system, using the translation superposition of Gaussian wave as the base, using the molecular dynamics simulation method, we discuss the interaction of the atomic plane in the public, In this case, the frictional mechanism of atom movement on a disorderly substrate and the effect of substrate disorder on the static friction force F_s.