DOI码：10.1016/j.cja.2024.05.002

所属单位：北航

发表刊物：Chinese Journal of Aeronautics

刊物所在地：中国

关键字：针对倾转旋翼机设计了倾转过渡过程的非线性增稳控制律，其中，引入了飞行品质参考模型，在控制律设计中主动考虑飞行品质，另外，非线性增稳控制律设计过程变得简化，一组参数能够有效覆盖整个倾转过渡加速过程。

摘要：Tiltrotors have three flight modes that pose control problems and quality defects during the conversion process. To address this, a novel flying qualities-based time-varying stability augmentation system is designed to achieve multimode, nonlinear, and time-varying stability. The system integrates a nonlinear time-varying control law with the flying qualities requirements for all three flight modes. It consists of an inner and outer loop control framework, where the control law in the inner loop is designed based on the Lyapunov theorem of stability. The reference models in the outer loop are derived from the flying qualities criteria to meet level one flying qualities requirements. To evaluate the conversion process, a time-varying flying qualities evaluation method is developed, which includes the conversion path, pilot model, and time-varying flying qualities index. The proposed time-varying stability augmentation control system is then tested through simulation during the conversion process. A pilot-aircraft closed-loop system is established for conducting experiments. Comparison between simulation results and pilot-in-loop experiment results demonstrates the effectiveness of the proposed control system. Furthermore, it proves that the evaluation method is suitable for analyzing time-varying systems. This research can be valuable in designing and evaluating stability augmentation controls for strongly time-varying systems.

第一作者：王晨,谭文倩

论文类型：期刊论文

通讯作者：孙立国

是否译文：否

发表时间：2024-05-16

收录刊物：SCI

发布期刊链接：https://authors.elsevier.com/sd/article/S1000-9361(24)00162-6