两摩擦表面间有润滑油存在,由于润滑油与金属表面的吸附作用,因而在金属表面上形成极薄的边界油膜,边界油膜的厚度小于1μm,不足以将两金属表面分隔开,所以相互运动时,两金属表面微观的高峰部分将互相搓削,这种状态称为边界摩擦。
同时,给出了不同条件下密集颗粒样本的生成方法,分析了边界应力、初始构型、加载速率、粒子间的摩擦系数等对颗粒系统目标构型的影响。
The influences of boundary stress, initial configuration, loading rate and friction coefficient between particles on the state and configuration of dense granular system are also examined.
本文提出了一种基于迭代技术的边界元法求解三维无滑动摩擦型弹性接触问题。
A boundary element method based on an iterative technique for solving the three-dimensional elastic contact problem without sliding is presented.
还给出了表面摩擦力系数和边界层位移厚度的计算结果。
Results of calculated skin friction and displacement thickness are given.
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