摘要
基于非线性"大偏离"的动态模型,开发了一种模拟推力瞬变对发动机性能和稳定性影响的程序,并在程序中考虑了主燃烧室、加力燃烧室和外涵通道等大容腔部件的容积效应,在控制方程中增加了时间滞后项。最终,使用该程序模拟了航空发动机地面台架状态的加速对风扇、压气机稳定性的影响,并分析了加速过程中影响稳定性的典型因素,得出加速过程中其降低了压气机稳定性7%~10%,同时功率提取、转动惯量、部件容积和加速供油规律等对加速过程中的发动机气动稳定性有不同的影响。
In order to study the dynamic process＇ s effects on the stability of turbofan engine,one-dimensional model based on component matching and time marching method were presented;Calculeted with the program to simulate the acceleration effect on stability of aircraft engine pneumatic,and analyzes the factors affecting the stability of typical in accelerating process. It is concluded that accelerate the process to reduce compressor stability is 7% to 10%.Obtain power extraction at the same time,the moment of ineratia,speed up there are rules to accelerate the engine in the process of pneumatic stability have different effects.
作者
好毕斯嘎拉图
杨龙龙
薛海波
张志舒
HAO Bisigalatu;YANG Long--long;XUE Hai-bo;ZHANG Zhi-shu(AECC Shenyang Engine Research Instituete,Shenyang 110015,China)
出处
《通信电源技术》
2018年第7期52-56,共5页
Telecom Power Technology
