Mode conversion of electric tilt rotor aircraft based on corrected generalized corridor

被引：0

作者：

Lu L. ^{[1
]}

Fu R. ^{[1
]}

Wang Y. ^{[2
]}

Zeng J. ^{[1
]}

机构：

[1] School of Aerospace Engineering, Xiamen University, Xiamen

[2] Research Institute of Unmanned Aerial Vehicle, Beihang University, Beijing

来源：

Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2018年 / 39卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Conversion corridor; Correction; Generalized corridor; Mode conversion; Online gain-scheduling; Tilt rotor aircraft;

D O I：

10.7527/S1000-6893.2018.21900

中图分类号：

学科分类号：

摘要：

The control problem of mode conversion of electric tilt rotor aircraft is studied in this paper based on the corrected generalized corridor and online gain-scheduling method. Considering the drawbacks of the traditional trimming approach which omits the dynamic time-varying factors during the conversion process, a new two-step trimming strategy is proposed, that is, correcting the operating points first and then obtaining the corrected generalized corridor. As a result, the deviation between the trim condition and the real operating points of the system is reduced, and hence the performance of the gain-scheduling control is improved. Furthermore, as the workload of designing the conversion controller with the traditional gain-scheduling method is heavy, we develop an online gain-scheduling algorithm to avoid the fitting procedure. Simulation of a small electric tilt rotor Unmanned Aerial Vehicle (UAV) shows that the tilt rotor UAV can complete the mode conversion flight fastly and steadily. It is also found that the average tracking error of the conversion corridor can be reduced significantly with the corrected generalized corridor. © 2018, Press of Chinese Journal of Aeronautics. All right reserved.

引用

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