• 论文 •

### 航空燃油柱塞泵滑靴副混合润滑特性数值仿真

1. 西北工业大学 动力与能源学院, 西安 710072
• 收稿日期:2017-05-15 出版日期:2018-05-20 发布日期:2018-05-29
• 通讯作者: 符江锋 E-mail:fjf@nwpu.edu.cn
• 作者简介:符江锋,男,博士,助理研究员。主要研究方向:航空发动机控制、航空燃油泵建模与仿真。
• 基金资助:
航空科学基金（20150653006）；中央高校基本科研业务费专项资金（G2017KY0003）

### Numerical simulation of hybrid lubrication characteristics of slipper pair of aviation fuel piston pump

FU Jiangfeng, LI Huacong, ZENG Xiaqing, LIU Xianwei

1. College of Power and Energy, Northwestern Polytechnical University, Xi'an 710072, China
• Received:2017-05-15 Online:2018-05-20 Published:2018-05-29

Abstract: The aim of this paper was to solve the slipper pair lubrication problem of the aero fuel piston pump under the mixed support of dynamic and static pressure. Based on the mathematical model of kinematics and dynamics of slipper pair, the mathematical model of the hybrid lubrication of the slipper pair was established based on the dynamic pressure effect caused by the static pressure support and the irregular spatial curve of sliding shoe movement. Then the lubrication characteristics of slipper pair were simulated based on the finite volume method, and the variation law of the oil film thickness, the influence factors of the oil film pressure distribution and the anti-sliding performance of the sliding shoe were analyzed. The simulation results show that the variation trend of the oil film thickness obtained by the hybrid lubrication is consistent with the actual lubrication state, the thickness of the oil film, the maximum inclination angle of the slipper and the rotor speed have an important influence on the dynamic pressure effect, and the inlet pressure of the slipper pair mainly affects the static pressure of the oil film. The anti-overturning ability of the sliding shoe can be enhanced by increasing the working radius of the bottom surface of the sliding shoe or reducing the radius of the oil pool of the sliding shoe center, so as to counteract the overturning moment of the sliding shoe.