表面粗糙度对柱塞泵中柱塞油膜运动状态的影响  

The effect of surface roughness on the movement state of the piston pump plunger oil film

作　　者：牛永生[1] 黄国辉[1] 胡居伟[1] 

机构地区：[1]中原工学院,河南郑州45007

出　　处：《机械研究与应用》2012年第6期111-113,共3页Mechanical Research & Application

摘　　要：依据柱塞-缸体副流体润滑的基本理论,以具有一定粗糙度的活塞和圆形油缸为研究对象,提出了三维坐标下柱塞的运动数学模型,对柱塞-缸体副的表面粗糙度进行了假定,并对柱塞的运动方程式进行了理论计算,为研究表面粗糙度对柱塞泵柱塞运动的影响提供一定的理论依据。According to the basic theory of fluid lubrication of piston and cylinder tribopair,this paper takes the piston and circular cylinder which has certain roughness as the research object,then a moving mathematics model of the plunger is proposed in the three-dimensional coordinate,the surface roughness of the piston and cylinder are assumed,the movement equation of the piston is calculated analytically.This study provides certain theoretical basis for the effect of the surface roughness on the movement of the plunger pump.

关 键 词：柱塞泵 表面粗糙度 运动方程式 

分 类 号：TH161[机械工程—机械制造及自动化]