Research on Turbofan Engine Model above Idle State Based on NARX Modeling Approach

2016 2nd International Conference on Mechanical and Aeronautical Engineering (ICMAE 2016)

机械制造;航空航天工程

Yu, Bing^1,2 ; Shu, Wenjun^1,2

Jiangsu Province Key Laboratory of Aerospace Power Systems, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing

210016, China^1

Advanced Aero Engine Collaborative Innovation Center, Nanjing University of Aeronautics and Astronautics, Nanjing

210016, China^2

关键词: Dynamic performance;    Dynamics characteristic;    High-accuracy;    NARX modeling;    Non-linear model;    State based;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/187/1/012002/pdf
DOI  :  10.1088/1757-899X/187/1/012002

学科分类：航空航天科学

来源: IOP

【 摘 要 】

The nonlinear model for turbofan engine above idle state based on NARX is studied. Above all, the data sets for the JT9D engine from existing model are obtained via simulation. Then, a nonlinear modeling scheme based on NARX is proposed and several models with different parameters are built according to the former data sets. Finally, the simulations have been taken to verify the precise and dynamic performance the models, the results show that the NARX model can well reflect the dynamics characteristic of the turbofan engine with high accuracy.