航空发动机应急滑油系统持续供油特性研究  

Characteristics of Continuous Oil Supply in Emergency Lubrication System of Aeroengine

作　　者：周琳 曹逸韬 汪峰 ZHOU Lin;CAO Yi-tao;WANG Feng(AECC Hunan Aviation Powerplant Research Institute,Zhuzhou,Hunan 412002;School of Power and Energy,Northwestern Polytechnical University,Xi an,Shaanxi 710072)

机构地区：[1]中国航发动力机械研究所,湖南株洲412002 [2]西北工业大学动力与能源学院,陕西西安710072

出　　处：《液压与气动》2020年第4期177-182,共6页Chinese Hydraulics & Pneumatics

摘　　要：为探究发动机应急滑油系统工作特性,以某型发动机空气引射式应急滑油系统为对象,将数值模拟与实验研究方法相结合,分析了应急滑油系统工作过程。通过非稳态计算获得了不同时刻应急油箱及引射油管内滑油相分布以及滑油消耗量、空气流量和持续供油时间,并分析了引射结构进出口压差对应急滑油系统工作特性的影响。通过对比给定油箱储油量情况下系统供油时间计算值与实验结果,验证了所采用分析方法的可靠性,为同类型航空发动机应急润滑系统的整体研究设计提供了参考思路和解决方案,具有重要的工程应用价值。In order to explore the operating characteristics of the emergency engine lubrication oil system,we take a certain engine air-ejector emergency lubrication oil system as the object,and combine the numerical simulation and experimental research methods to analyze the working process of the emergency lubrication oil system.The distribution of lubricating oil phase in emergency fuel tank and ejector tubing at different times,as well as the consumption of lubricating oil,air flow rate and continuous oil supply time are obtained through unsteady calculation.The reliability of the analysis method is verified by comparing the calculated value of system oil supply time with the experimental results under the given tank oil storage capacity,which provides a reference and a solution for the overall research and design of emergency lubrication system of the same type of aeroengine,and has important engineering application value.

关 键 词：航空发动机 应急滑油系统 两相流模型 持续供油时间 工作特性 

分 类 号：TH137[机械工程—机械制造及自动化] V233.4[航空宇航科学与技术—航空宇航推进理论与工程]