In this paper, a numerical model of elastohydrodynamic lubrication (EHL) in the line contact which happens on the surface of particle-reinforced composites is given. The influence of the particle size and burial depth on the EHL is studied. According to the influence of the structural parameters on the friction coefficient of the EHL contact, the structural parameters of the particles in the composites are optimized and the proper region of the parameters is obtained. The displacement and stress in elastic field caused by the uniform eigenstrains in the particles are described in terms of Galerkin vectors with the interactions between the particles are ignored. A coupling method of particle reinforced composites problem and EHL problem is presented, a new film thickness function is given considered the uneven elastic deformation caused by the presence of the particles. Finally, the presentation of film thickness and fluid pressure of the EHL explains that appropriate particle size, particle burial depth and particle distance can effectively reduce the friction coefficient. The lubrication behavior between the contacted surfaces can be improved under the heavy load.

在本文中，给出了颗粒增强复合材料表面线接触中弹性流体动力润滑（EHL）的数值模型。研究了粒径和埋藏深度对EHL的影响。根据结构参数对EHL接触摩擦系数的影响，对复合材料中颗粒的结构参数进行优化，得到合适的参数区域。粒子内均匀本征应变引起的弹性场中的位移和应力用伽辽金向量描述，忽略粒子之间的相互作用。提出了颗粒增强复合材料问题和EHL问题的耦合方法，考虑到颗粒的存在引起的不均匀弹性变形，给出了新的膜厚函数。最后，EHL 的膜厚和流体压力的呈现说明了适当的颗粒尺寸、颗粒埋藏深度和颗粒距离可以有效地降低摩擦系数。接触面之间的润滑性能可以在重负荷下得到改善。