• 论文 •

基于CFD的斜盘/滑靴副油膜特性分析

1. 1. 北京航空航天大学中法工程师学院, 北京 100083;
2. 中航工业金城南京机电液压工程研究中心, 南京 211140
• 收稿日期:2015-03-04 出版日期:2016-02-20 发布日期:2016-03-01
• 通讯作者: 马纪明,Tel.:010-82339761 E-mail:jiming.ma@buaa.edu.cn E-mail:jiming.ma@buaa.edu.cn
• 作者简介:马纪明 男,博士,高级实验师。主要研究方向:液压元件与系统设计、机电系统仿真。Tel.:010-82339761 E-mail:jiming.ma@buaa.edu.cn
• 基金资助:
国家自然科学基金(51205007)

Oil film analysis of swash plate/slipper pair based on CFD

MA Jiming1, SHEN Yayong1, LI Qilin2

1. 1. Sino-French Engineer School, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
2. Jincheng Nanjing Electrical and Hydraulic Engineering Research Center of AVIC, Nanjing 211140, China
• Received:2015-03-04 Online:2016-02-20 Published:2016-03-01

Abstract: The 3-D Navier-Stokes equations and arbitrary Lagrangian-Eulerian (ALE) method are firstly used to present the oil film analysis method based on computational fluid dynamics (CFD), which can describe the correlation among slipper structure parameters, running conditions and oil film thickness. Then, the oil film thicknesses of a slipper bearing under 24 different running conditions are obtained by simulation method. A function is consequently obtained based on the simulation results, which can express the relationships between running conditions (temperature, rotation speed, and outlet preesure) and oil film thickness. Furthermore, an equation of hydraulic dynamic parameter is provided and used to express the oil film thickness analytically. Based on the CFD simulation results, the parameter is proven to be only related with the oil viscosity (temperature) under fixed design structure, and unrelated with other running conditions, such as rotation, pressure, and so on. It is convenient for designer to derive the oil film thickness expression equation. Finally, we compared the oil film thicknesses obtained from analytical and CFD methods, and the results show that the presented method is feasible.