A partial lubrication model between valve plate and cylinder block in axial piston pumps

被引：50

作者：

Han, Lei ^{[1
,2
]}

Wang, Shaoping ^{[1
,2
]}

Zhang, Chao ^{[1
,2
]}

机构：

[1] Beihang Univ, Sch Automat Sci & Elect Engn, Beijing 100191, Peoples R China

[2] Beihang Univ, Sci & Technol Aircraft Control Lab, Beijing 100191, Peoples R China

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE | 2015年 / 229卷 / 17期

基金：

中国国家自然科学基金;

关键词：

Axial piston pump; partial lubrication model; Reynolds equation; film thickness;

D O I：

10.1177/0954406214568824

中图分类号：

TH [机械、仪表工业];

学科分类号：

120111 [工业工程];

摘要：

Axial piston hydraulic pumps are commonly used in aircraft, which makes analysis of their lubrication conditions of significant importance. Oil film between valve plate and cylinder block plays an most important role in pump lubrication. This paper proposes a partial lubrication model of the contact surfaces between valve plate and cylinder block in axial piston pumps for predicting film thickness. The asperity curvature at multiple scales and height distribution are obtained by analyzing actual contact surface profiles, then the separating pressure of asperities is estimated by the Hertz theory and the fluid separating pressure is calculated by Reynolds equation. Experimental results indicate that this model can predict film thickness accurately.

引用

页码：3201 / 3217

页数：17

共 27 条

[1]

ARCHARD JF, 1957, P ROY SOC A, V243, P190, DOI DOI 10.1098/RSPA.1957.0214

[2]

Pressure, flow, force, and torque between the barrel and port plate in an axial piston pump [J].