• 论文 •

### 小型涡扇发动机燃油控制规律

1. 中国民航大学 中欧航空工程师学院, 天津 300300
• 收稿日期:2015-12-17 出版日期:2016-12-20 发布日期:2016-04-11
• 通讯作者: 苏志刚,Tel.:13920214946,E-mail:ssrsu@vip.sina.com E-mail:ssrsu@vip.sina.com
• 作者简介:苏志刚,男,博士,教授,硕士生导师。主要研究方向:谱估计、信号处理、航空推进工程。Tel.:13920214946,E-mail:ssrsu@vip.sina.com;张凌霄,男,硕士研究生。主要研究方向:航空推进工程。Tel.:18668782906,E-mail:748169155@qq.com;邓甜,女,博士,讲师,硕士生导师。主要研究方向:航空推进系统。Tel.:18622265099,E-mail:dengtian.siae@foxmail.com
• 基金资助:
国家自然科学基金（51506216）；中央高校基本科研业务费专项资金（ZXH2012H001）

### Fuel control law of small size turbofan engine

SU Zhigang, ZHANG Lingxiao, DENG Tian

1. Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin 300300, China
• Received:2015-12-17 Online:2016-12-20 Published:2016-04-11
• Supported by:
National Natural Science Foundation of China (61262006, 61463044, 61462001); Major Applied Basic Research Program of Guizhou Province (JZ20142001); Science and Technology Foundation of Guizhou Province (LH20147636, LKQS201313); the Foundation of Qiannan Normal University for Nationalities (QNSY2011QN10, 2014ZCSX13)

Abstract: Focusing on the fuel control law of the small size turbofan engine DGEN380, a steady and transient component-level mathematical model was developed and simulated on MATLAB platform with analytic method. A special tool was used for modeling the rotating parts in order to get the components characteristics and draw the maps which can show the current operating point/line. In the steady model simulation process, the Newton-Raphson method and genetic algorithm were evaluated and compared for solving the working equations of the engine. The basic model was modified to overcome the limitations of simulation in the genetic algorithm. The Euler method was used to calculate the differential term for the transient model simulation. Based on the model, the fuel control law was studied, and the altitude characteristic was described as an example. The experimental results show that the Newton-Raphson method has high accuracy and speed,while the genetic algorithm has better adaptability with the model modification. The simulation results of the model and the control law fit the test data and theory well, as the error is maintained below 3%.